flange adapter

Data Sheet 42®

The Gruvlok® couplings allow for a quick, easy, low cost method of joining HDPE pipe to itself,grooved IPS pipe or any other ANSI Class 125 or Class 150 flanged piping component.

• No need for costly fusion equipment

• The couplings typically exceed the highest temperature and pressure ratings of HDPE pipe.

• Can be used with HDPE pipe with wall thickness from SDR 32.5 to 7.3

• Available with either EPDM or Nitrile gaskets

Note: Gruvlok products for HDPE pipe must be installed using Gruvlok Xtreme™ lubrication.

Figure 7305 HDPE Coupling Figure 7307 HDPE Transition Coupling

Figure 7312 HDPE Flange Adapter

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Material Specifications:• Housing:

Ductile Iron conforming to ASTM A-536, Grade 65-45-12

• Coating:Rust inhibiting paint – color: orange

• ANSI Bolts and Heavy Hex Nuts:Heat treated, zinc electroplated, carbon steel oval-neck track bolts conforming to ASTM A-183.

Zinc electroplated carbon steel heavy hex nuts conforming to ASTM A-563.

Warning:

• Gruvlok products for HDPE pipe must be installed using Gruvlok Xtreme™ Lubricant.• The gasket temperature rating may exceed the manufacturer’s temperature rating for the HDPE pipe. Consult the

HDPE pipe manufacturer for the temperature and pressure ratings.

• Gaskets: (Specify when ordering)Properties in accordance with ASTM D-2000

For specific chemical applications, reference the GruvlokGasket Recommendations section of the Gruvlok catalog.

Grade E EPDM (Green color code)Service Temperature Range: -30° F to +230° F Recommended for water service, dilute acids, alkaline solutions, oil free air and many chemicalservices. NOT FOR USE IN PETROLEUM APPLICATIONS.

Grade T Nitrile (Orange color code) Service Temperature Range: -20° F to +180° FRecommended for petroleum applications, air withoil vapor, vegetable, and mineral oils. NOT FOR USE WITH HOT WATER OR HOT AIR.

Gruvlok® Figure 7305 HDPE Coupling

The Gruvlok Figure 7305 couplings are designed for mechanically joining HDPE (high density polyethylene) pipeand fittings. Each coupling uses four bolts to drive the sharply machined housing teeth into the outside of the pipe.The teeth are arranged in two banks, each bank consisting of at least three rows of spiral teeth which effectively gripthe pipe, providing a secure mechanical joint with pressure capabilities exceeding that of the HDPE pipe itself. The banks of teeth are positioned away from the gasket, enhancing the sealing ability of the gasket throughout itsoperating temperature range.

The Figure 7305 features a low profile contoured housing with a ramp along the outside diameter, allowing the coupling to glide over most obstacles while long lengths of the pipeline are being relocated. This cost effective, easy-to-assemble mechanical joint is used to join SDR 32.5 to 7.3 wall thickness HDPE pipe conforming to ASTM D-2447, D-3000, D-3035, or F-714 and eliminates the need for costly fusion equipment.

2

X

Y Z

1. Per ASTM F7142. Per ASTM D2447 and D3035

ToleranceNom. Size

Pipe ODTolerance +/- SDR 7.3

In./DN(mm) In./mm +/- In./mm In./mmActual

HDPE PIPE DIMENSIONAL SPECIFICATIONSOut Of Roundness

2 2.375 0.006 0.035 0.325 0.264 0.216 0.153 0.140 0.113 –50 60.3 0.15 0.89 8.3 6.7 5.5 3.9 3.6 2.93 3.500 0.016 0.040 0.479 0.389 0.318 0.226 0.206 0.167 0.10880 88.9 0.41 1.02 12.2 9.9 8.1 5.7 5.2 4.2 2.74 4.500 0.020 0.040 0.616 0.500 0.409 0.290 0.265 0.214 0.138100 114.3 0.51 1.02 15.6 12.7 10.4 7.4 6.7 5.4 3.56 6.625 0.030 0.050 0.908 0.736 0.602 0.427 0.327 0.265 0.204150 168.3 0.76 1.27 23.1 18.7 15.3 10.8 8.3 6.7 5.28 8.625 0.039 0.075 1.182 0.958 0.784 0.556 0.507 0.340 0.265200 219.1 0.99 1.91 30.0 24.3 19.9 14.1 12.9 8.6 6.710 10.750 0.048 0.075 1.473 1.194 0.977 0.694 0.632 0.512 0.331250 273.1 1.22 1.91 37.4 30.3 24.8 17.6 16.1 13.0 8.412 12.750 0.057 0.075 1.747 1.417 1.159 0.823 0.750 0.607 0.392300 323.9 1.60 1.91 44.4 36.0 29.4 20.9 19.1 15.4 10.0

SDR 9In./mm In./mm In./mm

SDR 11 15.5 SDR 17In./mm

SDR 21 SDR 32.5In./mm In./mm

.......................Pipe Wall Thickness........................

Gruvlok® Figure 7305 HDPE Coupling

3

FIGURE 7305 HDPE COUPLINGCoupling Dimensions Coupling Bolts Approx.

Nom. Size Pipe OD X Y Z Size Wt. Ea.In./DN(mm) In./mm In./mm In./mm In./mm Qty. In. Lbs./Kg

2 2.375 33⁄8 51⁄2 45⁄8 4 1⁄2 x 23⁄8 4.550 60.3 86 140 117 - 2.03 3.500 45⁄8 63⁄4 8.580 88.9 117 171 - 3.94 4.500 51⁄4 3⁄4 4 1⁄2 x 3 12

100 114.3 133 203 146 - 5.46 6.625 71⁄2 11 57⁄8 4 5⁄8 x 31⁄2 18

150 168.3 191 279 149 - 8.28 8.625 10 131⁄4 5⁄8 x 31⁄2 30

200 219.1 254 337 152 - 13.610 10.750 12 153⁄4 61⁄2 4 3⁄4 x 43⁄4 43250 273.1 305 400 165 - 19.512 12.750 143⁄8 177⁄8 71⁄4 4 3⁄4 x 43⁄4 58300 323.9 365 454 184 - 26.3

4

46

8 5

45⁄8117

1⁄2 x 3

Installation & Assembly - Fig. 7305 HDPE Coupling

1Make certain the pipe ends are free of indentations,projections or other imperfections, which could prevent

proper sealing of the gasket.

Mark each pipe at a distance from the end of the pipeaccording to the pipe size:

Size Inches Distance to Mark2-4" 1"5-8" 11/4"

10 & 12" 13/4"

Note: Make certain the HDPE pipe end is square cut to1/8'' maximum for the 2'' to 4'' and 5/32'' maximum for the6'' and larger sizes.

2 Check to assure the gasket material is accept ablefor the intended service. The Gasket color code is

green for EPDM and orange for Nitrile (Buna-N).Caution: Use only Gruvlok Xtreme™ Lubricant.Gruvlok Xtreme™ Lubricant contains silicone. Ifsilicone is unacceptable for the application contactGruvlok for the lubrication recommendation. Apply athin coating of Gruvlok Xtreme™ Lubricant to thegasket lip and outside surface of the gasket.

5 Insert the bolts and secure the nuts alternately and uniformly until the bolt pads are in contact. Torque

all bolts to the required bolt torque levels. Refer to theSpecified Bolt Torque Section on page 11. There is nogap between the bolt pads and the bolt torque shouldbe within the range given when the coupling is properlyassembled. Alternate and even tightening of the boltswill significantly reduce the torque needed to close thegap at the pipe joint.

3 Slip the gasket over one of the pipe ends. Make sure the gasket does not overhang the pipe end.

Align the second pipe and while keeping the pipes inthe butted position slide the gasket back over the secondpipe end. The gasket must be positioned centrallybetween the lines on the pipe ends.

4 Place the Figure 7305 housing casting over the gasket, making sure the tongue on one casting is

aligned with the recess of the other casting.

Step 1 Step 2

Step 3 Step 4

Step 5

4







Grade E EPDM (Green color code)Service Temperature Range: -30° F to +230° F Recommended for water service, dilute acids, alkaline solutions, oil free air and many chemical services.NOT FOR USE IN PETROLEUM APPLICATIONS.

Grade T Nitrile (Orange color code) Service Temperature Range: -20° F to +180° F Recommended for petroleum applications, air with oil vapor, vegetable, and mineral oils. NOT FOR USE WITH HOT WATER OR HOT AIR.

For specific chemical applications, reference the Gruvlok Gasket Recommendations section of the Gruvlok catalog.

The Gruvlok Figure 7307 HDPE transition coupling allows for transitioning from HDPE pipe or fittings to steelgrooved-end pipe prepared according to Gruvlok specifications, or Gruvlok fittings. The Figure 7307 incorporates twobanks of machined teeth on one side of the housing, and a key section on the other, which engages specifically groovedsteel pipe or fittings. The banks of teeth on one side are positioned away from the gasket, enhancing the sealingcapability of the gasket. The temperature and pressure capabilities of the Figure 7307 typically exceed the highesttemperature and pressure ratings of the HDPE pipe.

The Figure 7307 features a low profile contoured housing with a ramp along the outside diameter on the HDPE halfof the coupling. This easy to assemble mechanical joint is used to join HDPE pipe (conforming to ASTM D-2447, D-3000,D-3035, or F-714) to roll grooved or cut grooved standard weight and, roll grooved lightweight pipe, as well as withgrooved-end fittings and valves. The coupling can be used with HDPE pipe having SDR values of 7.3 to 32.5.

Warning:• Gruvlok products for HDPE pipe must be installed using Gruvlok Xtreme™ Lubricant.

• The gasket temperature rating may exceed the manufacturer’s temperature rating for the HDPE pipe. Consult the HDPE pipe manufacturer for the temperature and pressure ratings of the HDPE pipe.

Gruvlok® Figure 7307 HDPE Transition Coupling

5

Gruvlok® Figure 7307 HDPE Transition Coupling

1. Per ASTM F7142. Per ASTM D2447 and D30353. For steel pipe requirements refer to Gruvlok standard roll or cut groove specifications for steel pipe.

Y Z

X

ToleranceNom. Size



HDPE PIPE DIMENSIONAL SPECIFICATIONSOut Of Roundness

2 2.375 0.006 0.035 0.325 0.264 0.216 0.153 0.140 0.113 –50 60.3 0.15 0.89 8.3 6.7 5.5 3.9 3.6 2.93 3.500 0.016 0.040 0.479 0.389 0.318 0.226 0.206 0.167 0.10880 88.9 0.41 1.02 12.2 9.9? 8.1 5.7 5.2 4.2 2.74 4.500 0.020 0.040 0.616 0.500 0.409 0.290 0.265 0.214 0.138100 114.3 0.51 1.02 15.6 12.7 10.4 7.4 6.7 5.4 3.56 6.625 0.030 0.050 0.908 0.736 0.602 0.427 0.327 0.265 0.204150 168.3 0.76 1.27 23.1 18.7 15.3 10.8 8.3 6.7 5.28 8.625 0.039 0.075 1.182 0.958 0.784 0.556 0.507 0.340 0.265200 219.1 0.99 1.91 30.0 24.3 19.9 14.1 12.9 8.6 6.710? 10.750 0.048 0.075 1.473 1.194 0.977 0.694 0.632 0.512 0.331250 273.1 1.22 1.91 37.4 30.3 24.8 17.6 16.1 13.0 8.412 12.750 0.057 0.075 1.747 1.417 1.159 0.823 0.750 0.607 0.392300 323.9 1.60 1.91 44.4 36.0 29.4 20.9 19.1 15.4 10.0




.......................Pipe Wall Thickness........................

1⁄2 x 23⁄8-

1⁄2 x 3-

1⁄2 x 3-

5⁄8 x 31⁄2-

5⁄8 x 31⁄2-

7⁄8 x 51⁄2-

7⁄8 x 512

33⁄88641⁄211453⁄41468

203101⁄2267125⁄8321143⁄4375

15271⁄818181⁄2216111⁄4286135⁄834617432191⁄2495

⁄-

4.52.06

2.78.53.9

12.55.7

20.59.3

34.515.642.519.3

Coupling Dimensions Coupling Bolts Approx.Nom. Size Pipe OD X Y Z Size Wt. Ea.In./DN(mm) In./mm In./mm In./mm In./mm Qty. In. Lbs./Kg

2 2.375 6 450 60.33 3.50080 88.94 4.500 4

100 114.36 6.625 4

150 168.38 8.625

200 219.110 10.750 4250 273.112 12.750 4300 323.9

4

4

1⁄87931⁄87933⁄49533⁄49541⁄41085

1275

127

3

FIGURE 7307 HDPE T OUPLINGRANSITION C

6

Installation & Assembly - Fig. 7307 Coupling

1Make certain the HDPE pipe end is square cut to 1/8''maximum for the 2'' to 4'' and 5/32'' maximum for the

6'' and larger sizes. The steel pipe must be grooved inaccordance with Gruvlok® Grooving Specifications forSteel Pipe. The pipe ends must be free of scratches,indentations, projections or other imperfections, whichcould prevent proper sealing of the gasket.

2 Check to assure the gasket material is acceptable for the intended service. The Gasket color code is

green for EPDM and orange for Nitrile (Buna-N).Caution: Use only Gruvlok Xtreme™ Lubricant.Gruvlok Xtreme™ Lubricant contains silicone. Ifsilicone is unacceptable for the application contactGruvlok for the lubrication recommendation. Apply athin coating of Gruvlok Xtreme™ Lubricant to thegasket lips and outside surface of the gasket.

5 Insert the bolts and secure the nuts alternately and uniformly until the bolt pads are in contact. Torque

all bolts to the required bolt torque levels. Refer to theSpecified Bolt Torque Section on page 11. There is nogap between the bolt pads and the bolt torque shouldbe within the range given when the coupling is properlyassembled. Alternate and even tightening of the boltswill significantly reduce the torque needed to close thegap at the pipe joint.

3 Slip the gasket over one of the pipe ends. Make sure the gasket does not overhang the pipe end.

Align the second pipe and while holding it in the buttedposition, slide the gasket back over the second pipeend. The gasket must be positioned on the gasket seatsurface of the grooved steel pipe. Make sure the gasketdoes not overhang into the pipe groove.

Step 1 Step 2

Step 3 Step 4

Step 5

4 Place each half of the coupling housing over the gasket, making sure the housing grooved end is

directed into the pipe groove.

7

Gruvlok® Figure 7312 HDPE Flange Adapter

The Gruvlok® Figure 7312 forms a cost-effective, easy-to-assemble mechanical joint between HDPE (high densitypolyethylene) pipe and fittings and ANSI Class 125 or Class 150 piping components without the need for costlyfusion equipment. The flanged couplings are designed for wall thickness’ SDR 32.5 to 7.3 HDPE pipe and fittingsconforming to ASTM D-2447, D-3000, D-3035, or F-174. Each coupling uses two bolts to drive the sharply machinedhousing teeth into the outside of the pipe. The teeth are arranged in two banks, each bank consisting of at leastthree rows of spiral teeth that effectively grip the pipe, providing a secure mechanical joint with pressure capabilitiesexceeding that of the HDPE pipe itself. The banks of teeth are positioned away from the gasket, enhancing the seal-ing ability of the gaskets throughout the entire operating temperature range.






Warning:

• Gruvlok products for HDPE pipe must be installed using Gruvlok Xtreme™ Lubricant.• The gasket temperature rating may exceed the manufacturer’s temperature rating for the HDPE pipe. Consult the

HDPE pipe manufacturer for the temperature and pressure ratings.


For specific chemical applications, reference the GruvlokGasket Recommendations section of the Gruvlok catalog.

Grade E EPDM (Green color code)Service Temperature Range: -30° F to +230° F Recommended for water service, dilute acids, alkaline solutions, oil free air and many chemicalservices. NOT FOR USE IN PETROLEUM APPLICATIONS.

Grade T Nitrile (Orange color code) Service Temperature Range: -20° F to +180° FRecommended for petroleum applications, air withoil vapor, vegetable, and mineral oils. NOT FOR USE WITH HOT WATER OR HOT AIR.

8

Gruvlok® Figure 7312 HDPE Flange Adapter

Nominal IPS Pipe Range Dimensions Sealing Surface Latch Bolt Mating Flange Bolts Approx. Pipe Size O.D. X Y Z A B Qty. Size Qty. Size Wt. Ea. In./DN(mm) in./mm in./mm in./mm in./mm in./mm in./mm inches inches lbs./kg

4 4.5 9 103/8 31/8 41/2 53/4 2 5/8 x 15/8 8

5/8 x 3 15 100 114.3 228.6 263.5 79.5 114.3 146.1 6.8

6 6.625 111/4 123/8 37/8 65/8 73/4 2 5/8 x 17/8 8

3/4 x 31/2 22 150 168.3 285.8 314.3 98.4 168.3 196.9 10.0

8 8.625 131/2 147/8 31/2 85/8 101/4 2 3/4 x 2 8 3/4 x 31/2 26 200 219.1 342.8 377.8 88.9 219.1 260.4 11.5

FIGURE 7312 HDPE FLANGE ADAPTER

ToleranceNom. Size



HDPE PIPE DIMENSIONAL SPECIFICATIONSOut of Roundness

4 4.500 0.020 0.040 0.616 0.500 0.409 0.290 0.265 0.214 0.138 100 114.3 0.51 1.02 15.6 12.7 10.4 7.4 6.7 5.4 3.5 6 6.625 0.030 0.050 0.908 0.736 0.602 0.427 0.327 0.265 0.204 150 168.3 0.76 1.27 23.1 18.7 15.3 10.8 8.3 6.7 5.2 8 8.625 0.039 0.075 1.182 0.958 0.784 0.556 0.507 0.340 0.265 200 219.1 0.99 1.91 30.0 24.3 19.9 14.1 12.9 8.6 6.7




........................................Pipe Wall Thickness..........................................

Y

X

Z

1. Per ASTM F7142. Per ASTM D2447 and D3035

Rubber Surface

Mating FlangeComponent

Gruvlok Figure7312 Flange

Grooved Pipe

Gruvlok Flange Adapter Insert

Serrated FaceMating Flange

FlangeGasket

Gruvlok Figure7312 Flange

Grooved Pipe

Gruvlok Flange Adapter Insert

NOTE A NOTES 1 and 2 NOTES 3 and 4

A. The sealing surfaces A Max. to B Min. of the mating flange mustbe free from gouges, undulations and deformities of any type to ensure proper sealing of gasket.

B. Gruvlok Flanges are to be assembled on butterfly valves so asnot to interfere with actuator or handle operation.

C. Do not use Gruvlok Flanges within 90 degrees of one another on standard fittings because the outside dimensions may causeinterference.

D. Gruvlok Flanges should not be used as anchor points for tie-rods across non-restrained joints.

E. Fig. 7012 Gruvlok Flange sealing gaskets require a hard flat surface for adequate sealing. The use of a Gruvlok Flange Adapter Insert is required for applications against rubber facedvalves or other equipment. The Gruvlok Flange Adapter Insert isinstalled between the Gruvlok Flange sealing gasket and the mating flange or surface to provide a good sealing surface area.

F. Gruvlok Flanges are not recommended for use against formedrubber flanges.

1. When mating to a wafer valve (lug valve), if the valve is rubber faced in the area designated by the sealing surface dimensions (A Max. to B Min.), place the Gruvlok Flange Adapter Insert between the valve and the Gruvlok Flange.

2. When mating to a rubber-faced metal flange, the Gruvlok Flange Adapter Insert is placed between the Gruvlok Flangeand the rubber-faced flange.

3. When mating to a serrated flange surface, a standard full-faced flange gasket is installed against the serrated flange face, and the Gruvlok Flange Adapter Insert is placed between the Gruvlok Flange and the standard flange gasket.

4. When mating to valves or other component equipment where the flange face has an insert, use procedure describedin note 3.

Applications which require a Gruvlok® Flange Adapter Insert:

Bmin.Amax.

9

Installation & Assembly - Fig. 7312 Flange Adapter

4 Tighten the housing nut until the housing bolt pads make firm metal to metal contact. Torque all bolts

to the required latch bolt torque levels. Refer to theSpecified Latch Bolt Torque Section on page 11.

2 Check to assure the gasket material is acceptable for the intended service. The gasket color code is

green for EPDM and orange for Nitrile (Buna-N). Caution:Use only Gruvlok Xtreme™ Lubricant. GruvlokXtreme™ Lubricant contains silicone. If Silicone isunacceptable for the application contact Gruvlok forthe lubrication recommendation. Apply a thin coatingof Gruvlok Xtreme™ Lubricant to the gasket lips andoutside surface of the gasket.

Step 1 Step 2

Step 3 Step 4

3 Place the housing over the end of the pipe and using a straight edge, align the face and the flange

face with the end of the pipe. Do not let the pipe extendbeyond the flange face.

5 Position the Gruvlok Flange gasket around the pipeend and press the gasket into the flange gasket

pocket. Be sure the flange sealing lips are facing out.

Step 56Align the Gruvlok Flange bolt holes with the mating

flange bolt holes. Insert a standard bolt or stud throughone bolt hole and thread the nut on hand tight. Insert thenext bolt or stud opposite the first and thread the nut onhand tight. Continue this procedure until all holes havebeen fitted. Note: Take care to assure the gasket lip isnot bent backwards and pinched between the two flanges.

Step 6

7 Tighten the flange face nuts alternately and evenly so that the flange faces remain parallel and make

firm contact around the entire flange. Torque all bolts tothe required mating flange joint torque levels. Refer tothe Specified Mating Flange Bolt Torque Section onpage 11.

Step 7

1Make certain the pipe end is square cut to ¹⁄₈''maximum for the 4'' and ⁵⁄₃₂'' maximum for the 6''

and 8'' sizes. Inspect the surface of the mating flange tobe assured the surface is free of dimensions of the matingflange to be assured that the scratches, indentations,projections, or other imperfections, which could preventproper sealing of the gasket.

10

Specified Bolt Torques

Specified bolt torque is for the latch and mating flange bolts used on Gruvlok® flanges. The nuts must be tightened alternately and evenly until fullytightened. Caution: Use of an impact wrench is not recommended because the torque output can vary significantly due to many variablesincluding air pressure supply, battery strength and operational variations.

Caution: Proper torquing of latch and mating flange bolts is required to obtain specified performance. Over torquing the bolts may result indamage to the bolt and/or casting which could result in pipe joint separation. Under torquing the bolts may result in lower pressure retentioncapabilities, lower bend load capabilities, joint leakage and pipe joint separation. Pipe joint separation may result in significant property damageand serious injury.

Fig. 7312 – Specified Bolt Torque for Latch and Mating Flange Bolts

Fig. 7305 and Fig. 7307 – Specified Bolt TorqueSpecified bolt torque is for the oval neck track bolts used on Gruvlok® couplings. The nuts must be tightened alternately and evenly until fullytightened. Caution: Use of an impact wrench is not recommended because the torque output can vary significantly due to many variablesincluding air pressure supply, battery strength and operational variations.

Caution: Proper torquing of coupling bolts is required to obtain specified performance. Over torquing the bolts may result in damage tothe bolt and/or casting which could result in pipe joint separation. Under torquing the bolts may result in lower pressure retention capabili-ties, lower bend load capabilities, joint leakage and pipe joint separation. Pipe joint separation may result in significant property damage andserious injury.

Coupling Bolts Minimum Maximum In. Ft.-Lbs./N-M Ft.-Lbs./N-M

¹⁄₂ x 2³⁄₈ 80 100

110 150

¹⁄₂ x 3 80 100

110 150

⁵⁄₈ x 3¹⁄₂ 100 130

135 175

³⁄₄ x 4³⁄₄ 130 180

175 245

FIG. 7305 SPECIED BOLT TORQUE Coupling Bolts Minimum Maximum In. Ft.-Lbs./N-M Ft.-Lbs./N-M

¹⁄₂ x 2³⁄₈ 80 100

110 150

¹⁄₂ x 3 80 100

110 150

⁵⁄₈ x 3¹⁄₂ 100 130

135 175

⁷⁄₈ x 5¹⁄₂ 180 220

245 300

FIG. 7307 SPECIED BOLT TORQUE

Latch Bolts Minimum Maximum In. Ft.-Lbs./N-M Ft.-Lbs./N-M

⁵⁄₈ x 1⁵⁄₈ 100 130

135 175

³⁄₄ x 2 130 180

175 245

FIG. 7312 - LATCH BOLT TORQUE Mating Flange Bolts Minimum Maximum In. Ft.-Lbs./N-M Ft.-Lbs./N-M

⁵⁄₈ x 3 110 140

149 190

³⁄₄ x 3¹⁄₂ 220 250

298 339

FIG. 7312 - MATING FLANGE BOLT TORQUE

11

®

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