iso 9001:2008 certified - setex productssetexproducts.com/setexproductguide.pdf · setex...

3/14 www.setexproducts.com

c

ISO 9001:2008 certified

INTRODUCTION SETEX

Page 1

Thermowells serve two primary functions: (1) extend temperature instrument life by protecting sensing elements from harsh process conditions, and (2) provide process isolation, enabling technicians to remove the temperature instrument for replacement or repair while the process system remains operational. SETEX thermowells are made from high-quality, thermally-conductive materials, providing long life and maximum temperature measurement accuracy.

SETEX specializes in the design and manufacture of thermowells, sample probes, and protection tubes. The product specifications included in this document sufficiently address the majority of applications found in process industries. For special applications, please contact SETEX for engineering and design assistance.

Table of Contents Introduction ................................................................................................................................................................................ 1

Specifications ............................................................................................................................................................................. 2

Terminology................................................................................................................................................................................ 3

Selection Guidelines .................................................................................................................................................................. 3

Ordering Information:

Thermowells ........................................................................................................................................................................ 4

Sample Probes .................................................................................................................................................................... 6

Protection Tubes ................................................................................................................................................................. 8

Illustrations:

Thermowells ...................................................................................................................................................................... 10

Sample Probes .................................................................................................................................................................. 15

Protection Tubes ............................................................................................................................................................... 16

Specifications

Thermowells / Sample Probes

Material

In compliance with ASTM specifications or other applicable national standard (ASME, AWS, etc.)

Shank O.D.

±0.010”

Overall Length (OAL)

±0.050”

Bar Stock

Mill Standard +0.000” / -0.03125”

Tip Thickness (Thermowell only)

±0.050” (1/4” Standard)

Shank Surface Finish

Polished to 16 RMS

Bore

±0.003”

Bore Concentricity

±0.0015” drift per inch, 0.035” max TIR

Protection Tubes

Material

In compliance with ASTM specifications or other applicable national standard (ASME, AWS, etc.)

Tip Thickness

±0.050” (1/4” Standard)

Immersion Length (“U” dim)

±0.50” for U < 60” ±0.75” for 60” < U < 96” ±1.00” for U > 96”

SETEX

Page 3

Terminology Immersion Length (“U” dim): Length of thermowell shank.

Lag Length (“T” dim): Extended length between the process connection and instrument connection to account for piping or vessel insulation.

Instrument Insertion Length (“A” dim): Also referred to as bore depth. Overall length (OAL) minus tip thickness.

Tip Diameter (“D” dim): Diameter of the thermowell at the tip.

Shank/Root Diameter (“Q” dim): For tapered and stepped thermowells, the diameter at the base of the process connection. For straight thermowells, the diameter of the shank throughout its length.

Shank: Portion of the thermowell that is immersed into the process system, extending from the base of the process connection to the thermowell tip. Typically either straight, tapered, or stepped. Contact SETEX for special design requirements.

Stepped Shank: Sometimes referred to as reduced tip. Standard root diameter, stepped down to ½” diameter at the tip, to improve measurement response time.

Straight Shank: Recommended for corrosive or erosive applications. Tapered Shank: Recommended for high-velocity applications where strength and rigidity are

essential.

Bore Diameter: The inside diameter of the thermowell. Typically .010” greater than the diameter of the temperature sensor.

Head Length (“H” dim): (Protection Tubes only) Dimension from the instrument connection to the base of the process connection.

Head Diameter (“C” dim): (Socket Weld, Weld-In, and Van Stone only) Actual diameter of the head dictated by the process connection.

Selection Guidelines

Bore Diameter The most common bore diameters are 0.260” and 0.385”. SETEX offers a wide variety of bore diameters to meet customer specifications, up to 1”.

Strength The strength of a thermowell depends on several parameters that relate thermowell construction to the installation environment. For most applications, standard SETEX thermowells provide the necessary strength if the material, style, and length are properly specified for the application. It is important to note that most thermowell failures are caused by vibration that is induced by fluid flow. SETEX offers applications engineering assistance, including wake frequency calculations and custom thermowell design, to help ensure proper thermowell performance in severe-service installations.

Immersion Length To ensure measurement accuracy, the immersion length should be long enough to ensure that the entire temperature-sensitive portion of the temperature instrument is extended into the process medium. For liquid processes, the thermowell should extend into the process fluid a depth equal to the sensor’s temperature-sensitive zone plus one inch or more. For gas processes, the thermowell should reach into the process fluid a depth equal to the sensor’s temperature sensitive zone plus three inches or more.

Thermocouples have short temperature-sensitive zones (at the tip of the sensor). Other temperature sensing devices such as RTDs, bi-metal thermometers, and liquid-in-glass thermometers have temperature sensitive zones between one and two inches.

ORDERING INFORMATION

Page 4

Thermowells Example Model Number

Style Bore

Diameter

Immersion Length

Root Diameter

Tip Diameter

Instrument Connection

Material Lag

Length Options "U" Dim. "Q" Dim. "D" Dim. "T" Dim.

TR2 A 045 H C 2 B -AT

Written as: TR2A045HC2B-AT (continued on next page)

Style Bore Diameter Immersion

Length

Mounting Style Code Shank Style

Code Process Connection Code (inches) Code (inches) Code

Threaded T Stepped R Threaded 0.260 A 1.625 016Flanged‐RF F Straight S 1/2" NPT 1 0.385 B 2.0 020Flanged‐RTJ J Tapered H 3/4" NPT 2 2.5 025Flanged‐FF N 1" NPT 3 0.187 C

etc… Socket Weld S 1‐1/4" NPT 4 0.190 D Weld‐In W 1‐1/2" NPT 5 0.203 E 10.0 100Van Stone V Flanged 0.250 F 10.5 105Sanitary C 1" Class 150 3A 0.281 G 11.0 110

1‐1/2" Class 150 5A 0.290 H 11.5 115 2" Class 150 6A 0.343 J

etc… 1" Class 300 3B 0.375 K 1‐1/2" Class 300 5B 0.406 L 98.0 980 2" Class 300 6B 0.437 M 98.5 985 1" Class 600 3C 0.515 N 99.0 990 1‐1/2" Class 600 5C 0.640 P 99.5 995 2" Class 600 6C 0.656 R Other XXX 1" Class 900/1500 3D 0.702 S 1‐1/2" Class 900/1500 5D 0.718 T 2" Class 900/1500 6D Other (Please

specify) X

1" Class 2500 3E 1‐1/2" Class 2500 5E 2" Class 2500 6E Socket Weld and Weld‐In 3/4" Pipe (1.050 OD) 2 1" Pipe (1.315 OD) 3 1‐1/4" Pipe (1.660 OD) 4 1‐1/2" Pipe (1.900 OD) 9 1‐1/2" Actual (1.500 OD) 5 Van Stone 1" 3 1‐1/2" 5 2" 6 Sanitary 1‐1/2" Tri‐Clamp 5 2" Tri‐Clamp 6 2‐1/2" Tri‐Clamp 7 3" Tri‐Clamp 8 Other (Please Specify) X

Thermowell drawings on pages 10 thru 14.

SETEX

Page 5

(continued from previous page) W For straight shank wells, leave

blank

Root Diameter Tip Diameter Instrument Connection

Material Lag Length

(inches) Code (inches) Code Type Code Type Code (inches) Code0.375 A 0.375 A 1/2" NPT 1 304 SST A 0.00.400 B 0.400 B 1/2" NPSM 2 316 SST B 0.5 050.500 C 0.500 C 1.0 100.562 D 0.562 D 1/4" NPT 3 Brass C 1.5 150.625 E 0.625 E 1/4" NPSM 4 310 SST D 2.0 200.680 F 0.680 F 321 SST E 2.5 250.735 G 0.735 G 3/4" NPT 5 347 SST F 3.0 300.750 H 0.750 H 3/4" NPSM 6 446 SST G 3.5 350.766 J 0.766 J Duplex 2205 H 4.0 400.781 K 0.781 K 1" NPT 7 CS‐1018 J 4.5 450.860 L 0.860 L 1" NPSM 8 CS‐A105 K 5.0 500.875 M 0.875 M Hastelloy B L 5.5 550.900 N 0.900 N Other (Please

specify)X

Hastelloy C276 M 6.0 601.000 P 1.000 P Alloy 20 N 6.5 651.050 Q 1.050 Q Nickel 200 P 7.0 701.063 R 1.063 R Monel 400 Q 7.5 751.125 S 1.125 S Inconel 600 R 8.0 801.250 T 1.250 T Incoloy 800 S 8.5 851.315 U 1.315 U F5 T 9.0 901.375 V 1.375 V F9 U 9.5 951.500 W 1.500 W F11 V Other XX1.625 Y 1.625 Y F22 W 1.900 Z 1.900 Z F91 Y

Other (Please specify)

X Other (Please specify)

X Titanium Z

Other (Please Specify)

X

Options

Option Code Option Code

Stainless Plug and Chain A Electropolishing G

Brass Plug and Chain B Teflon Coating N

Special Markings / Tagging T Stellite Coating K

Wake Frequency Calculation C Tantalum Sheath S

Full Penetration Flange Weldment F Velocity Collar V

Dye Penetrant Testing D Include Lap‐Joint Flange (Van Stone) L

Internal Hydro‐testing I Special Cleaning for Oxygen Service Y

External Hydro‐testing E Tantalum Coating J

Positive Material ID (PMI) Testing P Titanium Sheath Z

X‐ray of Weldment R Other (Please Specify) X

Documents available on request:

MTR (Material Test Report) COC (Certificate of Compliance) COC-NACE (Certificate of NACE Compliance) COO (Certificate of Origin)


Page 6

Sample Probes Example Model Number

Sample Probe

Style Bore

Diameter

Immersion Length

Root Diameter

Tip Diameter

Sampler Connection

Material Lag

Length Options "U" Dim. "Q" Dim. "D" Dim. "T" Dim.

S TS2 B 045 C 1 A -P

Written as: STS2B045C1A-P (continued on next page)

Style Bore Diameter Immersion

Length

Mounting Style Code Shank Style

Code Process Connection Code (inches) Code (inches) Code

Threaded T Straight S Threaded 0.260 A 1.625 016Flanged‐RF F Tapered H 1/2" NPT 1 0.385 B 2.0 020Flanged‐RTJ J 3/4" NPT 2 2.5 025 1" NPT 3 0.187 C

etc… 1‐1/4" NPT 4 0.190 D 1‐1/2" NPT 5 0.203 E 10.0 100 Flanged 0.250 F 10.5 105 1" Class 150 3A 0.281 G 11.0 110

1‐1/2" Class 150 5A 0.290 H 11.5 115 2" Class 150 6A 0.343 J

etc… 1" Class 300 3B 0.375 K 1‐1/2" Class 300 5B 0.406 L 98.0 980 2" Class 300 6B 0.437 M 98.5 985 1" Class 600 3C 0.515 N 99.0 990 1‐1/2" Class 600 5C 0.640 P 99.5 995 2" Class 600 6C 0.656 R Other XXX 1" Class 900/1500 3D 0.702 S 1‐1/2" Class 900/1500 5D 0.718 T 2" Class 900/1500 6D Other (Please

specify) X

1" Class 2500 3E 1‐1/2" Class 2500 5E 2" Class 2500 6E Other (Please Specify) X

Sample probe drawings on page 15.

SETEX

Page 7

(continued from previous page) W For straight shank sample

probes, leave blank

Root Diameter Tip Diameter Sampler

Connection Material Lag Length

(inches) Code (inches) Code Type Code Type Code (inches) Code0.375 A 0.375 A 1/2" NPT 1 304 SST A 0.00.400 B 0.400 B 1/4" NPT 3 316 SST B 0.5 050.500 C 0.500 C 3/4" NPT 5 1.0 100.562 D 0.562 D 1" NPT 7 Brass C 1.5 150.625 E 0.625 E Other (Please

specify)X

310 SST D 2.0 200.680 F 0.680 F 321 SST E 2.5 250.735 G 0.735 G 347 SST F 3.0 300.750 H 0.750 H 446 SST G 3.5 350.766 J 0.766 J Duplex 2205 H 4.0 400.781 K 0.781 K CS‐1018 J 4.5 450.860 L 0.860 L CS‐A105 K 5.0 500.875 M 0.875 M Hastelloy B L 5.5 550.900 N 0.900 N

Hastelloy C276 M 6.0 60

1.000 P 1.000 P Alloy 20 N 6.5 651.050 Q 1.050 Q Nickel 200 P 7.0 701.063 R 1.063 R Monel 400 Q 7.5 751.125 S 1.125 S Inconel 600 R 8.0 801.250 T 1.250 T Incoloy 800 S 8.5 851.315 U 1.315 U F5 T 9.0 901.375 V 1.375 V F9 U 9.5 951.500 W 1.500 W F11 V Other XX1.625 Y 1.625 Y F22 W 1.900 Z 1.900 Z F91 Y

Other (Please specify)

X Other (Please specify)

X Titanium Z

Other (Please Specify)

X

Options

Option Code

Special Markings / Tagging T

Full Penetration Flange Weldment F

X‐ray of Weldment R

Dye Penetrant Testing D

Positive Material ID (PMI) Testing P

Other (Please Specify) X




Page 8

Protection Tubes Example Model Number

Protection Tube

Tube Style Process

Connection

Immersion Length Material

Head Length Options

"U" Dim. "H" Dim.

P R C 150 A 30 -T

Written as: PRC150A30-T (continued on next page)

Tube Style Process Connection Immersion

Length Material

Pipe Size Schedule Code Type Code (inches) Code Type Code

1/4"

40 A 3/4" NPT A 12 120 304 SST A80 B 1" NPT B 15 150 316 SST B160 C 1‐1/2" NPT C 18 180 310 SST DXX Heavy D 2" NPT D 21 210 321 SST E

1/2"

40 E Welded E 24 240 347 SST F80 F 1" Class 150 F 27 270 446 SST G160 G 1‐1/2" Class 150 G 30 300 Duplex 2205 HXX Heavy H 2" Class 150 H 32 320 CS‐A105 K

3/4"

40 J 3" Class 150 J 34 340 Hastelloy B L80 K 4" Class 150 K 36 360 Hastelloy C276 M160 L 1" Class 300 L 38 380 Alloy 20 NXX Heavy P 1‐1/2" Class 300 P 40 400 Nickel 200 P

1”

40 Q 2" Class 300 Qetc…

Monel 400 Q80 R 3" Class 300 R Inconel 600 R160 T 4" Class 300 T 96 960 Incoloy 800 SXX Heavy U 1" Class 600 U 98 980 F5 T

1‐1/2"

40 V 1‐1/2" Class 600 V Other XXX F9 U80 W 2" Class 600 W F11 V160 Y 3" Class 600 Y F22 WXX Heavy Z 4" Class 600 Z F91 Y

Other (Please Specify) X Other (Please Specify) X Titanium Z Other (Please Specify) X

Protection tube drawings on page 16.

SETEX

Page 9

(continued from previous page) W

Head Length Options

(inches) Code Option Code

2.0 20 Stainless Cap and Chain A

2.5 25 Brass Cap and Chain B

3.0 30 Special Markings / Tagging T

3.5 35 Full Penetration Flange Weldment F

4.0 40 Drilled‐barstock tip (please specify bore diameter) H

4.5 45 Electropolishing G

5.0 50 Dye Penetrant Testing D

5.5 55 Positive Material ID (PMI) Testing P

6.0 60 Internal Hydro‐testing I

6.5 65 External Hydro‐testing E

7.0 70 X‐ray of Weldment R

7.5 75 Special Cleaning for Oxygen Service Y

8.0 80 Other (Please Specify) X

8.5 85

9.0 90

9.5 95

Other XX



THERMOWELL ILLUSTRATIONS

Page 10

Threaded

Stepped

Straight

Tapered

* Standard head length (Wrench Allowance + Thread Allowance) = 1.75”

Limited Space

SETEX

Page 11

Socket Weld

Stepped

Straight

Tapered

Weld-In

Tapered


Page 12

Flanged

Stepped

Straight

Tapered

SETEX

Page 13

Van Stone

Stepped

Straight

Tapered


Page 14

Sanitary

Stepped

Straight

Tapered

SAMPLE PROBE ILLUSTRATIONS SETEX

Page 15

Sample Probe Styles

Threaded

Flanged

PROTECTION TUBE ILLUSTRATIONS

Page 16

Protection Tube Styles

Threaded

Flanged

Welded

NOTES SETEX

SETEX Products

3255 Executive Blvd, Suite 105 Beaumont, Texas 77705

Phone: 409 842-3334 Fax: 409 842-3336

www.setexproducts.com

[email protected]