dryingspray · the large number of swirl chamber orifice combinations provide customers with more...

Product Guide

S D XS P R AY

D R Y I N GDelavan Ltd. • Gorsey Lane • Widnes

Cheshire • WA8 0RJ • England.Telephone: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043

e-mail: [email protected] Web: www.delavan.co.uk

P.O. Box 969 • Bamberg, S.C. 29003 Phone: 803-245-4347 • Fax: 803-245-4146

Toll free: 1-800-982-6943e-mail: [email protected] Web: www.delavaninc.com

Dealer Stamp

SDX 20 page Brochure vis 7/16/02 12:52 PM

nozzlesSpray Drying

for use in

Delavan

The Quality you’ve come to expect

Delavan Spray Drying Nozzles reflect

years of dedication to quality, flexibility

and reliability. Since 1935, the

Delavan name has become

synonymous with precision

engineering, proven techniques and

product satisfaction. Today Delavan

continues to be a leader in the spray drying industry by

staying on the forefront of research and development in

new materials, delivery systems and designs to handle new

challenges across a range of industries.

High Performance – Rugged Durability

Delavan Spray Drying Nozzles set the standard by which other

nozzles are judged. We held the first patent on the revolutionary swirl

chamber design, with a single inlet, which minimises plugging and

maximises particle uniformity. This design has improved dry product

quality because the spiral configuration confirms to the natural path of

liquid as it progresses toward the orifice.

In addition, Delavan offers:-

● Durability and wear resistance

Our nozzles are available in materials that resist chemical attack

such as plastics, ceramics, sintered carbides and various grades

of stainless steel.

● Customisation

To suit all your application needs, you can specify spray

characteristics to meet your needs, including droplet size and

particle size, spray angle, flow variation and properties of the

liquid being sprayed.

● Versatility

Delavan offers three swirl chamber designs with orifice discs

ranging in size from 0.4mm to 6.4mm.

The large number of swirl chamber orifice combinations provide

customers with more options when spray drying a variety of

different products. Swirl chambers and orifices can be paired in

a variety of combinations to produce the droplet size, flow rate,

and spray angle and product quality needed to meet your exact

product specifications.

32

● Technical expertise and know how

Understanding the "custom" aspect of each application is of

critical importance in spray drying. Almost every dryer presents a

unique situation depending on feed material, capacity, and

operating conditions. Delavan understands the conditions and

problems inherent in spray drying and will recommend the right

nozzle for the best performance

Our Technical support includes:-

● Lifetime service and support

Once Delavan nozzles are installed in your dryer, the support

never ends. You can contact Delavan at any time with changes,

questions or issues

● Computer Analysis

To suit all your application requirements,

Delavan uses computer analysis programs to

produce information such as droplet size, spray

angle, flow rate – all this before installing any

nozzles into the spray dryer, saving valuable

time and money.

UNIQUE SWIRL CHAMBER

SDX 20 page Brochure vis 7/16/02 1:43 PM Page 3

Technicalknow how..

Delavan

The AtomiserDelavan recognises that at the "heart" of any spray dryer is the atomiser, small in size, bigin importance, installing the right atomiser is essential to spray drying success.

The atomiser must fulfil several important functions.

1. It must disperse the feed material into small droplets, which should be well distributedwithin the dryer and mixed thoroughly with the hot gas.

2. The size of the droplets produced must be compatible with the required productparticle size characteristics,

3. The droplets produced must not be so large that they are incompletely dried, nor so small that product recovery is difficult. Small particles may also overheat and become scorched.

4. The atomiser must also act as a metering device, controlling the rate at which thematerial is fed into the dryer.

Consequently, the atomiser, though relatively inexpensive, is therefore an extremelycritical element.

Centrifugal Pressure NozzlesThe SDX™ nozzle represents Delavan’s range of centrifugal spray drying nozzles. Energyfor atomisation is supplied solely by the feed liquid pressure, with pressures up to 700 barbeing used.

The SDX™ range is of the swirl type configuration using a single inlet swirl chamber and has the capability of atomising liquids having viscositiesup to several hundred centipoise.

All the SDX™ nozzles uses a similar design swirl configuration with orifice discs, therebyguaranteeing uniformity of performance across the range.

Two-Fluid NozzlesIn two-fluid nozzles, gas (or steam) supplies most of the energy required to atomise theliquid. Liquid admitted under low pressure may be mixed either internally or externallywith the gas. Although energy requirements for this atomiser are generally greater thanthe spinning disks or pressure nozzles, the two-fluid nozzle can produce very fineatomisation, particularly with viscous materials. It is often used in laboratory and smallspray dryers.

Spray Quality and Particle SizeWhilst durability is one of the foremost requirements of pressure nozzles, atomisationquality is certainly just as critical. The importance of droplet size is often more critical thanin other spray operations. Droplet size affects not only dryer size and operating efficiency,but also the characteristics of the final product.

Particle size is critical with regard to bulk density, solubility and customer acceptance.

54

Distinguishing between droplet size and particle size is important,since the two are generally not identical, although the relationshipbetween the two can often be determined, usually by on-site trials.

Particle size, or droplet size is usually expressed in terms of amean or average diameter as well as the range or spread in size.As discussed in Delavan’s "Spray Droplet Technology" booklet,there are several definitions of mean diameter.

Droplet DiametersDelavan uses the Sauter mean diameter, whose ratio of volume tosurface area is equal to that of the aggregate spray, to measurethe droplet diameter.

The range or spread in droplet size requires an understanding ofthe entire distribution. Typically, a spray drying nozzle will producedroplets as small as 1 to 2 micron and as large as 400 to 500micron. However, the majority will be within a range of 50-200micron. The narrower the range of droplet size the more suited itis to spray drying, with a "mono -range" being the ultimate goal formost operators.

Spray AngleThe spray angle in spray drying is usually in the 60° to 90° band. Itmust be noted that the spray angle measured near the orifice maynot prevail further away. This is particularly true at high pressures,when the angle becomes actually narrower within a shortdistance. Therefore it is important to establish the exact manner inwhich this spray angle is measured.

Flow VariationSDX nozzles may also act as metering devices, controlling thedistribution of feed into the chamber. Whether single or multi -nozzle application are used the flow rate must be preciselycontrolled to be compatible with the dryer design.

It is important therefore to understand the properties of the feed material.

As there are so many different feed stocks, all of Delavan’scalculations are based on water and variations of viscosity etc. aretaken into account in Delavan’s computer analysis programmes.

Liquid PropertiesUnderstanding of the feed stock is essential. The properties of thefeed stock are directly related to the finished particle size,therefore density, viscosity, percentage solids, abrasive awarenessand any other characteristics all need to be considered

The liquid properties should be established at the temperaturecorresponding to the liquid in the nozzle. Feed stocks are oftensprayed at elevated temperatures to decrease viscosity, therebyimproving atomisation.

The effect of each liquid property on droplet size is usuallyestablished by actual test, however Delavan’s field experienceshows that these effects can be closely estimated from thefollowing correction factors:

EFFECT OF LIQUID VISCOSITYD � �0.25

Where D = Mean droplet diameter, micrometers� = Absolute viscosity, centipoise

EFFECT OF LIQUID VISCOSITYD � �0.33

Where � = Surface tension, dynes/cm

Wear ResistanceThe wear life of the internal parts (consumable parts), dependsupon its corrosion and erosion resistant characteristics

Corrosion occurs when the liquid feed and wear parts arechemically incompatible.

Erosion results from the liquid feed with its abrasive solidsphysically removing the material.

Corrosion problems can be avoided if the chemical properties ofthe feed stock are known and the material of the consumableparts are designed to be compatible.

Erosion can be combated, but never fully overcome. The use of harder material, or special materials can reduce this problem.

...the critical factors affecting the spray quality.


Max. Design Pressure: 350 Bar.G.Max. Design Temperature: 150ºC.

FEATURESThe unique swirl chamber is the heart of Delavan’s Mini-SDXnozzle design. The single inlet spiral configuration produces anatural, free vortex pattern. Friction is minimised, permitting 10-20% lower operating pressure than conventional slotteddistributor nozzles. This lengthens both pump and nozzle life.

SPRAY CHARACTERISTICS● The Mini-SDX nozzle produces a hollow cone spray pattern

with relatively uniform droplet size and particle distribution.● Nominal spray angle is 70º-75º.● Flow rates on water at 69 Bar.G. range from as low as

24.2 litres/hour to as high as 208 litres/hour, depending on nozzle size.

CONSTRUCTION AND MATERIALS● Five part construction.● The orifice disc, a pressed fit insert, is recessed to protect

against damage if dropped or hit.● Wrench tighten only when replacing orifice disc by pressing

into nozzle body with assembly tool, otherwise no wrenchtightening should be done during assembly. Wrenchtightening may result in fracture of the swirl chamber.

● The patented single inlet swirl chamber minimises pluggingand maximises particle uniformity.

● The Viton O-ring seal allows assembly and disassemblywithout tools.

● Only assembly tool (P/N 36386) is needed for changing thepressed fit orifice disc.

ORDER EXAMPLEWhen ordering specify the following:

1) Assembly part number from capacity chartor 2) Part numbers of individual items.

MINI-SDX

SPRAY CHARACTERISTICS● The SDX series nozzles produce a hollow cone spray

pattern with uniform particle size distribution even at lowoperating pressures.

● Flow rates are certified to be within ±5% of rated capacityat 69 Bar.G. and within ±5º of rated spray angle whentested with water.

● Unique, patented single inlet, spiral swirl chamber offersincreased nozzle life, improved product uniformity, densityor solubility.

● Minimal friction due to nozzle design permitting 10-20%lower operating pressure than conventional slotteddistributor nozzle for equivalent atomisation quality.

● Extended pump life due to lower operating pressure.● Reduction in fine particles is possible due to lower

pressure requirements.

CONSTRUCTION AND MATERIALS● Eight part construction.● Nozzle bodies, screw pins and adaptors are available in 316

Stainless Steel. Other materials available on special request.● Orifice discs are easily removable and are available in

Tungsten Carbide, Chrome Carbide and Ceramic as standard.● Swirl chambers are standard in Tungsten Carbide,

Hardened Stainless Steel or Ceramic.● End plates are available in Tungsten Carbide, Chrome Carbide

and Ceramic. ● Combined swirl chamber/end plate is available in Tungsten

Carbide only.● Seals are available in Nylon, PTFE, Copper, Hard Fibre

and Aluminium.

ORDER EXAMPLEPlease indicate all component parts and materials when ordering.

Max. Design Pressure: 500 Bar.G.Max. Design Temperature: 540ºC (Metal Seals),

150ºC (Other Seals).

38,1 A/F 72,6 38

45

SDX

76

SDX III

SPRAY CHARACTERISTICS● The SDX series nozzles produce a hollow cone spray

pattern with uniform particle size distribution even at lowoperating pressures.

● Flow rates are certified to be within ±5% of rated capacityat 65 Bar.G. and within ±5º of rated spray angle whentested with water.

● Unique, patented single inlet spiral swirl chamber offersincreased nozzle life, improved product uniformity, densityor solubility.

● Minimal friction due to nozzle design permitting 10-20%lower operating pressure than conventional slotteddistributor nozzle for equivalent atomisation quality.

● Extended pump life due to lower operating pressure.● Reduction in fine particles is possible due to lower

pressure requirements.

CONSTRUCTION AND MATERIALS● Six part construction.● O-ring seals allow assembly and disassembly without tools.● Body and adaptors are produced from hexagon barstock

with other materials in round bar with flats.● Nozzle bodies and adaptors are available in 316 Stainless

Steel. Other materials are available on special request.● Orifice discs are easily removable and are available in

Tungsten Carbide, Chrome Carbide and Ceramic.● Swirl chambers are standard in Tungsten Carbide,

Hardened Stainless Steel or Ceramic.● End plates are available in Tungsten Carbide and Ceramic. ● Combined swirl chamber/end plate is available in Tungsten

Carbide only.● O-Rings are in Silicone or Viton.

ORDER EXAMPLEPlease indicate all component parts and materials when ordering.

Max. Design Pressure: 350 Bar.G.Max. Design Temperature: 150ºC.

37,4

3895 (VARIES WITH SWIRL CHAMBER)

Contact our Helpline for any special requirements: Tel: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043e-mail:[email protected] Web:www.delavan.co.uk



The following are various special bodies, adaptors and toolsthat are available for the SDX nozzle range.

CONE FACED BODIESThese are designed to prevent build up of sprayed product on the nozzle faceand are available with cone angles of 70°, 80° and 90°. Special angles areavailable on request.

MULTIPLE NOZZLE ADAPTORSDelavan offers a line of multiple nozzle adaptors for use in applications thatrequire three, four or five SDX nozzles. The multi adaptor or cluster body canbe used for the SDX and SDXIII models. These have a 1” NPTF inlet with 3/8”NPTF outlets so that nipples can be fitted on to which the nozzles will bemounted. The part numbers are 50958-1 for the three nozzle adaptor, 50958-2for the four nozzle adaptor and 50958-3 for the five nozzle adaptor.

CONE FACED BODY PART NUMBERS

Nozzle Type 70° 80° 90°

SDX 20319-1 20319-2 20319-3

SDXIII W11882-1 W11882-2 W11882-3

THREAD GUARDSThese are designed to protect the threads and sealing surfaces duringcleaning of the SDX bodies and SDX III adaptors. The part numbers are 50519for the SDX and 50423 for the SDX III.

ASSEMBLY TOOLSPart number 36386 for changing Mini-SDXorifice discs.

There is an additional tool number W15336 which is designed for removal oforifice discs which have become embedded with product.

Part number W15307 for insertion and removalof SDX and SDX III swirl chambers.

SDX III TYPE

95161-4 95161-5

50519 50423

36386W15307

ACCESSORIES ACCESSORIES

The Kwik-Chek orifice gauges are designed for the rapid measurement ofsmall hole diameters. Models are available to cover a range of hole diametersfrom 0,010” to 0,255” (0,25mm-6,50mm).These gauges work on the principle of directly transferring diametermeasurements from a sliding, tapered needle to a linear scale readoutgraduated in 0,001” or 0,02mm.

FEATURES● No skill required. Untrained personnel can make fast and accurate

measurements.● Rapid and simple calibration. A setting master is provided with each

gauge. Permits rapid periodic check on calibration and field readjustment,if necessary, by shop personnel.

● Magnified, direct reading scale permits easy reading of hole diameters tonearest 0,001” or 0,02mm.

● Precision ground tapered needle is made of 52-100 Steel and Chrome platedfor maximum wear resistance.

● Positive Clutch which locks needle and scale at exact dimension of holebeing measured.

● Convenient pocket size and weight makes these gauges ideal for rovinginspectors and engineers.

ORDER EXAMPLEPlease specify the model number and Inch or Metric size when ordering.

Model Hole Size RangeNumber Inches Metric

10 0,010”-0,028” 0,25mm-0,70mm

20 0,025”-0,130” 0,60mm-3,30mm

30 0,130”-0,255” 3,30mm-6,50mm

INDIVIDUAL GAUGES

Note:- Kwik-Chek orifice gauge is not suitablefor Mini-SDX.

The nozzle inlet can be provided with a butt-weldconnection in place of the standard threadconnection on request.

98Contact our Helpline for any special requirements: Tel: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043

e-mail:[email protected] Web:www.delavan.co.uk Contact our Helpline for any special requirements: Tel: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043

e-mail:[email protected] Web:www.delavan.co.uk


1110

CAPACITY CHART - MINI SDXASSEMBLY INLET SWIRL ORIFICE FLOW RATE IN LITRES/HOUR AT BAR.G. APPROX.

PART ADAPTOR THREAD CHAMBER DISC WEIGHTNUMBER (NPTF) 34,5 69 138 207 276 345 (g)

32936-47 32931-1 1/4 32933-4 902-18 17,4 24,2 34 42 48,4 53,7 13332936-48 32931-2 3/8 119

32936-49 32931-1 1/4 32933-4 902-20 18,5 25,7 36,3 44,6 51,5 57,5 13332936-50 32931-2 3/8 119

32936-51 32931-1 1/4 32933-4 902-22 20,4 28,4 40,1 49,2 56,8 63,6 13332936-52 32931-2 3/8 119

32936-53 32931-1 1/4 32933-4 902-24 23,5 32,5 46,2 56,4 65,1 72,6 13332936-54 32931-2 3/8 119

32936-55 32931-1 1/4 32933-4 902-27 26,9 37,8 53,3 65,5 75,7 84,7 13332936-56 32931-2 3/8 119

32936-1 32931-1 1/4 32933-1 902-22 29,5 41,6 59,0 72,2 83,2 93,1 13332936-2 32931-2 3/8 119

32936-3 32931-1 1/4 32933-1 902-24 34 47,3 67 82 94,6 105,9 13332936-4 32931-2 3/8 119

32936-5 32931-1 1/4 32933-1 902-27 38,6 54,9 77,6 95 109,8 122,6 13332936-6 32931-2 3/8 119

32936-7 32931-1 1/4 32933-1 902-30 44,3 62,4 88,2 108,2 124,8 140,1 13332936-8 32931-2 3/8 119

32936-9 32931-1 1/4 32933-2 902-30 53,3 75,7 107,1 130,9 151,3 169,1 13332936-10 32931-2 3/8 119

32936-11 32931-1 1/4 32933-2 902-33 60,1 85,1 120,3 147,5 170,2 190,3 13332936-12 32931-2 3/8 119

32936-13 32931-1 1/4 32933-2 902-36 67 94,6 133,9 163,8 189,2 211,5 13332936-14 32931-2 3/8 119

32936-15 32931-1 1/4 32933-2 902-38 70,7 100,3 141,9 173,3 200,5 224,4 13332936-16 32931-2 3/8 119

32936-17 32931-1 1/4 32933-2 902-40 77,6 109,7 155,1 189,9 219,4 245,1 13332936-18 32931-2 3/8 119

32936-19 32931-1 1/4 32933-2 902-42 80,2 113,5 160,8 196,7 227 253,5 13332936-20 32931-2 3/8 119

32936-21 32931-1 1/4 32933-2 902-44 82,9 117,3 164,2 203,5 234,6 262,1 13332936-22 32931-2 3/8 119

32936-23 32931-1 1/4 32933-2 902-46 87 123 174 213 245,9 275 13332936-24 32931-2 3/8 119

32936-25 32931-1 1/4 32933-2 902-48 90,8 132,4 187,3 229,3 264,8 296,2 13332936-26 32931-2 3/8 119

32936-27 32931-1 1/4 32933-2 902-50 97,6 138,1 195,2 239,1 276 308,7 13332936-28 32931-2 3/8 119

32936-29 32931-1 1/4 32933-2 902-52 105,6 149,4 211,5 258,8 298,9 334,1 13332936-30 32931-2 3/8 119

32936-31 32931-1 1/4 32933-2 902-54 109,7 155,1 219,4 268,6 310,2 346,9 13332936-32 32931-2 3/8 119

32936-33 32931-1 1/4 32933-2 902-56 113,5 158,9 224,7 275,4 317,8 355,6 13332936-34 32931-2 3/8 119

32936-37 32931-1 1/4 32933-3 902-50 117,3 169,5 239,5 293,6 339,0 378,3 13332936-38 32931-2 3/8 119

32936-39 32931-1 1/4 32933-3 902-52 127,5 180,8 255,8 313,3 361,7 404,4 13332936-40 32931-2 3/8 119

32936-41 32931-1 1/4 32933-3 902-54 135,1 191,1 270,1 331 382,1 427,1 13332936-42 32931-2 3/8 119

32936-43 32931-1 1/4 32933-3 902-56 143,8 202,4 286,4 350,7 404,8 452,5 13332936-44 32931-2 3/8 119

32936-45 32931-1 1/4 32933-3 902-58 147,2 208,1 294,3 360,6 416,2 465,3 13332936-46 32931-2 3/8 119

All Spray Angles 70º-75º.The following charts are only a selection of swirl chamber and orifice conversions. If you require further information andcombinations please contact us.



SWIRL ORIFICE SPRAY ANGLE FLOW RATE IN LITRES/HOUR AT Bar.G.CHAMBER DISC AT 69 Bar.G.

SUFFIX 15 25 50 75 100 125 150 200 300 400 500

SB 703-33 70 37,5 47,7 65,8 79,2 89,9 99,5 108 123 149 171 188SA 703-38 80SC 703-34 60SB 703-40 75 45,9 58,1 81,8 98,3 112 124 135 156 187 216 240SA 703-48 85SD 703-35 60SC 703-39 70 54,6 70,0 98,3 118 135 150 164 189 228 264 293SA 703-59 85SE 703-35 50SD 703-39 65 63,4 81,5 115 136 159 179 193 225 271 312 347SB 703-54 80SA 703-69 90SE 703-38 55SD 703-48 65 71,9 92,9 131 158 181 202 220 253 307 358 394SC 703-50 75SB 703-62 85SF 703-38 50SE 703-41 60 80,7 106 146 178 205 227 248 285 347 401 439SC 703-54 75SB 703-69 85SF 703-40 50SE 703-44 60SD 703-52 70 89,1 116 164 199 229 257 279 321 390 451 508SC 703-60 80SB 703-77 90SF 703-43 50SE 703-48 60 97,5 126 179 216 248 279 303 351 428 497 554SD 703-56 70SC 703-66 80SG 703-40 45SF 703-45 55 106 138 196 237 275 307 332 384 474 546 612SE 703-51 65SC 703-71 80SG 703-45 45SF 703-51 55SE 703-58 65 124 160 229 277 321 360 390 451 559 646 722SD 703-69 75SC 703-83 85SG 703-49 50SF 703-56 60SE 703-64 70 141 182 260 315 364 404 439 512 627 722 811SD 703-76 80SC 703-94 90SG 703-53 50SF 703-60 60SE 703-70 70 158 205 293 356 409 459 505 585 711 811 929SD 703-83 80SC 703-107 90SG 703-57 55SF 703-65 65 176 228 327 394 454 514 559 646 795 921 1032SD 703-92 80SH 703-54 45SG 703-60 55 192 247 358 436 501 562 615 715 895 1013 1139SF 703-70 65SE 703-83 75 192 247 358 436 501 562 615 715 895 1013 1139SD 703-100 85SH 703-57 45SG 703-63 55SF 703-75 65 211 274 390 474 550 616 669 776 955 1101 1242SE 703-89 75SD 703-108 85

CAPACITY CHART - SDX & SDX III*

** Maximum Operating Pressure for SDX III = 350 Bar.G. (Available up to 500 Bar.G. on request)The following charts are only a selection of swirl chamber and orifice conversions. If you require further information and combinations please contact us.


1312

SWIRL ORIFICE SPRAY ANGLE FLOW RATE IN LITRES/HOUR AT Bar.G.CHAMBER DISC AT 69 Bar.G.

SUFFIX 15 25 50 75 100 125 150 200 300 400 500

SH 703-66 50SG 703-75 60SF 703-89 70 262 340 486 593 681 766 833 968 1170 1377 1548SE 703-108 80SD 703-133 90SH 703-75 50SG 703-86 65 315 407 585 715 826 929 1013 1174 1449 1675 1881SF 703-102 75SE 703-125 85SI 703-76 45SH 703-83 55SG 703-97 65 367 477 681 829 955 1086 1182 1365 1690 1950 2187SF 703-114 75SE 703-141 85SI 703-83 50SH 703-90 60 420 546 780 948 1097 1232 1338 1544 1912 2218 2486SG 703-106 70SF 703-127 80SI 703-88 50SH 703-99 60 474 612 880 1087 1238 1399 1518 1771 2180 2523 2829SG 703-119 70SF 703-141 80SJ 703-85 45SI 703-95 55SH 703-106 65 524 683 975 1185 1369 1555 1683 1950 2409 2791 3135SG 703-128 75SF 703-155 85SJ 703-94 45SI 703-106 55 608 798 1139 1384 1606 1813 1968 2275 2875 3269 3670SH 703-120 65SG 703-144 75SJ 703-103 50SI 703-115 60 696 909 1292 1579 1827 2050 2236 2581 3193 3709 4167SH 703-133 70SJ 703-110 50SI 703-128 60 748 1030 1460 1790 2064 2303 2523 2925 3613 4206 4722SH 703-145 70SJ 703-118 55SI 703-135 65 872 1136 1625 1988 2294 2570 2810 3250 4015 4664 5199SH 703-156 75SJ 703-127 55 968 1257 1790 2176 2514 2818 3058 3555 4392 5047 5658SI 703-149 65SJ 703-135 60 1063 1384 1957 2370 2745 3030 3326 3861 4760 5467 5884SI 703-155 70SJ 703-151 60 1154 1495 2122 2561 2963 3303 3594 4167 5085 5850 6499SK 703-126 50SJ 703-158 65SK 703-138 55 1257 1616 2294 2771 3204 3596 3831 4473 5543 6385 7169SM 703-113 40SJ 703-185 70SK 703-150 55 1519 1961 2773 3397 3922 4386 4804 5547 6794 7845 8770SM 703-128 45SK 703-160 60 1766 2280 3225 3950 4561 5099 5586 6450 7900 9122 10190SM 703-143 50SM 703-160 50 2208 2851 4032 4938 5702 6375 6983 8064 9876 11400 12700

** Maximum Operating Pressure for SDX III = 350 Bar.G. (Available up to 500 Bar.G. on request)The following charts are only a selection of swirl chamber and orifice conversions. If you require further information and combinations please contact us.

CAPACITY CHART - SDX & SDX III*



SWIRL-AIR

Nozzle - Max. Design Pressure: 14 Bar.G.Max. Design Temperature: 540ºC.

Adaptor -Max. Design Pressure: 14 Bar.G.Max. Design Temperature: 150ºC.

Right AngleNozzle Assembly

In-Line Nozzle

In addition to the SDX™ range of products, Delavan offers further experience throughthe use of two fluid, or air atomising nozzles.

In two fluid nozzles, air, steam or gas supplies most of the energy to atomise the liquid.This can be mixed either internally or externally and in Delavan’s Swirl Air SprayDrying Nozzle, this is mixed internally, offering a range of flow rates and spray angles.

● Two Swirl-Air nozzle versions are available: the right angle nozzle (atomising airenters the side, the liquid enters axially in back): and the in-line nozzle(concentric piping is used with the liquid in the centre and atomising air aroundthe outside). Concentric pipe adaptors are optional and not included with thenozzle assembly.

FEATURES● Large internal passages with no vanes or cores assure unrestricted flow with

little chance for clogging. ● No external struts or supports to interfere with spray pattern.● Nozzle design provides for vortex mixing, primary impingement, fluid distortion

and external impact for fine atomisation and relatively high nozzle efficiency.● Spray angle can be adjusted through interchangeable nozzle cap assemblies.

This feature permits much wider spray patterns than are possible with mosttypes of two fluid atomisers.

● Air flow (M3/min) and power requirements are relatively low, permittingspecification of smaller air compressors.

● Good atomisation over wide turn-down ratios.● Droplet size is controlled by minor changes in air pressure.

SPRAY CHARACTERISTICS● Air is introduced tangentially into the nozzle chamber in low pressure region of

the swirling liquid, creating extreme turbulence and primary atomisation. Asliquid leaves the orifice, it impinges against the deflector ring which serves adual purpose: close control of spray angle and breakup of the spray into evenfiner droplets (secondary atomisation).

● Nominal spray angles of 50º, 75º, 100º can be attained by specification ofinterchangeable nozzle caps. Contact Delavan’s Customer Service Team forspecial spray angles up to 180º.

● Mean droplet diameters in the 50 to 100 micrometres range at modest airpressures and flow rates.

● Degree of atomisation is also variable by controlling the ratio of air to liquid.● If air pressure is set initially, and it is necessary to modulate the liquid flow, the

air pressure and flow rates will automatically respond in such a way that thequality of atomisation remains nearly constant. In some applications, this canresult in savings through the elimination of air valving and controls.

CONSTRUCTION AND MATERIALS● Two piece construction, the nozzle body plus integral deflector ring and cap,

easily removable without disturbing pipe connection.● For in-line nozzles the user can alter “C” dimension to any extended length by

providing two concentric pipes with a coupling on one end of each. Both madeup pipe/coupling lengths should be equal. The length is then the desiredaddition to “C” dimension.

● No external struts or supports to interfere with spray pattern.● Both in-line and right angle versions are available in 316L Stainless Steel and

440 Stainless Steel. Other materials such as Hastelloy C276, Inconel 600,Carpenter 20, Titanium and Carbide lined are available by special order.For other materials, contact Delavan’s Customer Service Team.

● Large internal passages with no vanes or cores assure unrestricted flow with little chance for clogging. Adaptor

(Nipple and O-Ringincluded with Adaptor)


NOZZLE SIZING CHARTS

Maximum RecommendedPressure: 100 Bar.G.

* Higher flow rates can be achieved by increasing pressure.

* Higher flow rates can be achieved by increasing pressure.

RIGHT ANGLE NOZZLESRIGHT DASH NUMBERS FOR MATERIAL CAP

NOMINAL ANGLE AND NOMINAL SPRAY ANGLE ASSEMBLYFLOW NOZZLE MIN.

(LITRES/ ASSEMBLY 316 440 ANGLE PASSAGE 316 440MIN) NUMBER SS HSS (º) (mm) SS HSS

-2 - 50 (40-60) 6,1 707-97 -

93 45506 -1 - 75 (65-85) 4,8 707-96 -

-3 - 100 (90-110) 3,8 707-98 -

-2 -5 50 (40-60) 4,3 707-11 707-26

56 31618 -1 -4 75 (65-85) 3,6 707-10 707-25

-3 -6 100 (90-110) 2,8 707-12 707-27

-2 -5 50 (40-60) 2,5 707-8 707-23

37 31325 -1 -4 75 (65-85) 2,1 707-7 707-22

-3 -6 100 (90-110) 1,6 707-9 707-24

-2 -5 50 (40-60) 1,7 707-5 707-20

15 31693 -1 -4 75 (65-85) 1,7 707-4 707-19

-3 -6 100 (90-110) 1,7 707-6 707-21

-2 -5 50 (40-60) 1,3 707-2 707-17

9,5 31694 -1 -4 75 (65-85) 1,3 707-1 707-16

-3 -6 100 (90-110) 1,3 707-3 707-18

-11 - 50 (40-60) 0,64 707-93 -

3,8 -2 - 75 (65-85) 0,64 707-13 -

32163-7 - 100 (90-110) 0,64 707-29 -

-10 - 50 (40-60) 0,64 707-93 -

,8 -1 - 75 (65-85) 0,64 707-13 -

-8 - 100 (90-110) 0,64 707-29 -

IN-LINE NOZZLESDASH NUMBERS FOR

MATERIAL AND NOMINAL CAPNOMINAL SPRAY ANGLE ASSEMBLY

FLOW NOZZLE MIN.(LITRES/ ASSEM. 316 ANGLE PASSAGE 316 440 OPTIONAL

MIN) NUMBER SS (º) (mm) SS HSS ADAPTOR

-2 50 (40-60) 4,3 707-11 707-26

56 32555 -1 75 (65-85) 3,6 707-10 707-25 32614

-3 100 (90-110) 2,8 707-12 707-27

-2 50 (40-60) 2,5 707-8 707-23

37 32554 -1 75 (65-85) 2,1 707-7 707-22 32618

-3 100 (90-110) 1,6 707-9 707-24

-2 50 (40-60) 1,7 707-5 707-20

15 32668 -1 75 (65-85) 1,7 707-4 707-19 32695

-3 100 (90-110) 1,7 707-6 707-21

-2 50 (40-60) 1,3 707-2 707-17

9,5 -1 75 (65-85) 1,3 707-1 707-16 32742

32740-3 100 (90-110) 1,3 707-3 707-18

-13 50 (40-60) 0,64 707-93 -

3,8 -4 75 (65-85) 0,64 707-13 - 32742

-5 100 (90-110) 0,64 707-29 -


Contact our Helpline for any special requirements: Tel: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043e-mail:[email protected] Web:www.delavan.co.uk 1514

TYPICAL NOZZLE INSTALLATIONSRIGHT ANGLE SWIRL-AIR NOZZLE

1. Install nozzle as shown in schematic drawing above. Makecertain both pressure gauges are located as close to thenozzle as practical. Allow for pressure losses between gaugesand nozzle when establishing settings. Shut-off valves areincluded for convenience, allowing nozzle removal withoutshutting down system.

2. Always start air flow first, then liquid flow. On shut-down, stopliquid flow first, then air flow. Adjust air and liquid pressuressimultaneously; each affects the other. Check liquid flow rateafter system reaches equilibrium.

3. In-Line Version: The adaptor shown may be purchased fromDelavan. It is not part of the nozzle.

4. In-Line Version: Concentric piping can be used betweenadaptor and nozzle, making it possible to position the adaptorin an ambient temperature area and the nozzle within the wallsof a high temperature chamber. Contact Delavan forinstallation drawing SK6072.

NOTE: For gas cooling applications, it is recommended that the air flow continues through nozzles after liquid flow is stopped.

IN-LINE SWIRL-AIR NOZZLE



DESCRIPTION PART NO. MATERIAL WEIGHT (g)

Orifice Disc 902-XX* Tungsten Carbide 8,5

Nozzle Body 32932 303 SS 62,4

Swirl Chamber 32933-X* Ceramic 7,1

Swirl Chamber 50791-X* Tungsten Carbide 9,9

O-Ring Seal 31352-013 Viton 2,3

1⁄4” NPTF Adaptor 32931-1 303 SS 85,03⁄8” NPTF Adaptor 32931-2 303 SS 71,0

MATERIALS AND WEIGHTS

PART NO. DESCRIPTION MATERIAL

49109 Seal Kit Viton

SEAL KIT (24 SEALS)

* Refer to capacity chart for dash number.NOTE: - 50791-1 is equivalent to 32933-1.

BODY

ORIFICEDISC

SWIRLCHAMBERS

O-RING

ADAPTOR

COMPONENT PARTS

COMPONENT PARTS - MINI SDX

SDX RecommendedCleaning procedureDepending upon your specific application, SDXcomponent parts (orifice, swirl chamber/end plate) and the body, will require cleaning to remove productbuild up.

The frequency of cleaning will depend upon individualapplications.

In order to maximise the life of the component parts,the following cleaning procedure is recommended:-

Soak the components in a commercially availablecleaning solution, using the manufacturer’srecommendation on time and concentrate.

If making your own, a caustic solution of 20%concentrate or less may be used – but caution shouldbe used, as caustic will eventually affect the component parts.

Parts should not be soaked in caustic solutionsovernight, as this may deteriorate the binder used in the tungsten carbide material. Soak no longer than 30 minutes, then rinse thoroughly with water.

Another option is to place the components in anultrasonic cleaner with water or mild soap forapproximately 10-15 minutes, depending upon thecleaning requirements.

This cleaning procedure is appropriate for HSS,tungsten carbide and ceramic materials.

16

MINI SDX ASSEMBLYPROCEDURE

● Place the nozzle body thread sideup on a flat surface.

● Insert the orifice disc - cone facedown.

● Insert the swirl chamber on top ofthe orifice disc. The slot at theback of the swirl chamber must befacing upwards.

● Slot the ‘O’ ring onto the adaptor.

● Screw the adaptor into the back ofthe body.



Description Part No. Material Weight(g)

Body 29776 316 SS 153,0

29772-1 Nylon –29772-3 Aluminium –

Orifice Seal 29772-6 PTFE –29772-7 Hard Fibre –29772-4 Copper –

703-XXX* Tungsten Carbide 11,4Orifice Disc 704-XXX Chrome Carbide 11,4

608-XXX Ceramic –

Swirl Chamber 29794-XX* Hardened SS 8,5Swirl Chamber 31212-XX Tungsten Carbide 17,0Swirl Chamber 30655-XX Ceramic –

Swirl Chamber with WO1380-XX Tungsten Carbide 28,4End Plate combined

W05366 Tungsten Carbide 11,4End Plate 29953 Chrome Carbide 11,4

34430 Ceramic –

Screw Pin 29777 316 Stainless Steel 91,0

29773-1 Nylon –29773-3 Aluminium –

Body Seal 29773-6 PTFE –29773-7 Hard Fibre –29773-4 Copper –

1⁄4” BSPT Female Adaptor 29775-93⁄8” BSPT Female Adaptor 29775-11 316 Stainless Steel 370,01⁄2” BSPT Female Adaptor 29775-133⁄4” BSPT Female Adaptor 29775-15


* Specify orifice size and swirl chamber suffix from capacity chart.

(1) BODY

(2) ORIFICESEAL

(7) BODYSEAL

(3) ORIFICEDISC

(5) ENDPLATE

(6) SCREWPIN

(4) SWIRLCHAMBERS

(8) ADAPTOR

COMPONENT PARTS - SDX

SDX ASSEMBLYPROCEDURE


● Insert the orifice seal.

● Place the orifice inside the nozzlebody numbers side down (sharpedge orifice).

● Place the swirl chamber on top ofthe orifice. It does not matter whichside goes down with regards to theswirl chamber (W01380 will onlygo one way).

● Place the end plate, chamber sideup, on top of the swirl chamber.

● Align the threaded side of thescrew pin over the endplate andscrew onto the nozzle body.

● Torque screw pin into body with47.5 newton/metres.

● Place body seal into femaleadaptor.

● Pick up the assembled unit andscrew into the female adaptor.

● Torque body onto adaptor with 68newton/metres.

17

WEIGHTS

Assembly Size Weight (g)

1/4” 680

3/8” 666

1/2” 640

3/4” 612


Description Part No. Material Weight(g)

Body W11300 316 Stainless Steel 276

Orifice O-Ring 31351-66 Silicone –31352-016 Viton –

Orifice Disc 703-XXX* Tungsten Carbide 11,4704-XXX Chrome Carbide 11,4608-XXX Ceramic –

Swirl Chamber 29794-XX* Hardened Stainless Steel 8,5Swirl Chamber 31212-XX Tungsten Carbide 17Swirl Chamber 30655-XX Ceramic –

Swirl Chamber with WO1380-XX Tungsten Carbide 28,4End Plate Combined

End Plate 38331** Tungsten Carbide 42,5W11430 Ceramic –

Adaptor O-Ring 31351-65 Silicone –31351-32 Viton –

1⁄4” BSPT Female Adaptor W11301-1 316 Stainless Steel 3693⁄8” BSPT Female Adaptor W11301-2 3541⁄2” BSPT Female Adaptor W11301-3 3403⁄4” BSPT Female Adaptor W11301-4 312


* Specify orifice size and swirlchamber suffix fromcapacity chart.

** End plate not required withW01380 swirl chamber.

(1) BODY

(2) ORIFICESEAL

(6) ADAPTOR SEAL

(3) ORIFICEDISC

(5) END PLATE

(4) SWIRL CHAMBERS

(7) ADAPTOR

WEIGHTS

Assembly Size Weight (g)

1/4” 743

3/8” 729

1/2” 714

3/4” 700

Spray Drying

Fax Back FormThis enquiry sheet serves as a guide so that we may better assist you in proper nozzle selection.

Many times the optimum nozzle combination cannot be found on the first attempt but the more completely this form is filled out, the better our chance of success

Name: _______________________________________________________ Date: ______________________________________

Company:_________________________________________________________________________________________________

Address: __________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

Tel No:_______________________________________________________ Fax No:____________________________________

The Feed Material

Substance being sprayed: ___________________________________ % Solids: _________________________________

Specific gravity (or Density): _________________________________ Viscosity: _________________________________

Acidic or alkaline (pH): ______________________________________

The Nozzle

Nozzle type presently being used: ________________________________________________________________________

Manufacturer: _______________________________________________ Number of nozzles: _______________________

Rated flow and spray angle: _________________________________ Average wear life: _________________________

Material: _____________________________________________________ Thread type: ______________________________

The Dryer

Dryer manufacturer: _________________________________________ Inlet air temp: _____________________________

Cocurrent or countercurrent air: _____________________________ Outlet air temp: ___________________________

Dryer diameter at nozzle position: ___________________________ Maximum pump pressure: ________________

Pump manufacturer: ________________________________________ Operating pressure: _______________________

The Dry Product

% Moisture: _________________________________________________ Density: ___________________________________

Pounds per hour: ___________________________________________ Solubility: _________________________________

Comments: ______________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

Please fax back to:

+44 (0)151 495 1043or your local distributorDelavan Ltd.•Gorsey Lane•Widnes•Cheshire WA8 0RJ•England

Tel: +44 (0) 151 424 6821. E-mail: [email protected]. Web: www.delavan.co.uk

CONSUMABLE PARTS - SDX III

Contact our Helpline for any special requirements: Tel: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043e-mail:[email protected] Web:www.delavan.co.uk 1918

SDX III ASSEMBLYPROCEDURE


● Make sure the o-ring seal ispressed in snugly to the nozzlebody.

● Place the orifice numbers sidedown into the body (sharp edge orifice).

● Use your finger to align the orificeinto the recessed area in thebody.

● Place the swirl chamber on top ofthe orifice. It does not matterwhich side of the swirl chamberfaces the orifice (W01380 will onlygo in one way).

● The direction of the swirl chamberdoes not affect the functionality ofthe nozzle.

● Place the endplate, circular sidedown, on top of the swirl chamber with the square side ofthe endplate should be on top (if required).

● Make sure the o-ring is on theadaptor.

● Screw the adaptor onto the nozzlebody. Hand tighten only.


Product Guide

S D XS P R AY

D R Y I N GDelavan Ltd. • Gorsey Lane • Widnes

Cheshire • WA8 0RJ • England.Telephone: +44 (0) 151 424 6821 Fax: +44 (0) 151 495 1043

e-mail: [email protected] Web: www.delavan.co.uk

P.O. Box 969 • Bamberg, S.C. 29003 Phone: 803-245-4347 • Fax: 803-245-4146

Toll free: 1-800-982-6943e-mail: [email protected] Web: www.delavaninc.com

Dealer Stamp


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