API594 Dual Plate/Double Plate Wafer Type Swing Check Valve (GAH76H)

Model NO.: GAH76H
Flow Direction: Bidirectional
Standard: ANSI
Application: Industrial Usage
Size: Nps 2"~40"
Pressure Rating: Class 150~1500
Trademark: GOOLE, OEM
Transport Package: Plywood Case
Specification: ISO 9001
Origin: China(Mainland)
HS Code: 8481804090

Dual Plate Wafer Check Valve Application

The Dual Plate Wafer check valve is a energy-saving product. It is manufactured by us GOOLE VALVE based on  the foreign advanced technology and in accordance with relative international standards. This product is featured by excellent retaining performance, high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical food processing,          medicine, textile, paper-making, Water supply, drainage, metallurgy, energy and light industry, etc. used as a check valve in one way.

Dual Plate Wafer Check Valve Specification

Size: NPS 2"~40"
Pressure: Class 150~1500
Material: WCB,LCB,CF8,CF8M,CF3M,WC6,C5,C12
Design & Manufacture Std.: API 594,API 6D,ASME B16.34
Face to Face Std.: API 594,API 6D
End Connection Std.: ASME B16.5,ASME B16.47
Test Standard: ISO5208,API 6D

Dual Plate  Wafer Check Valve Standard

Design and Manufacture: ANSI B16.34, API 6D

Face to Face: API 6D

Flange Dimension: 2"-24" to ANSI B16.5,  26"-36" to MSS-SP-44 to API 605 as request.

Test and Inspection: API 6D

Shell Test: 150LB, 450 PSI,  300LB, 1125 PSI.

Seat Test: 150 LB:315 PSI(HYDROSTATIC), 80 PSI(AIR)

           300LB: 815 PSI

Dual Plate Wafer Check Valve Features

  1. Small in size, light in weight, compact in structure, easy in maintenance.
  2. Two torsion springs are used excerting on each of the pair valve plates, which close the plates quickly and automatically.
  3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
  4. This valve is short in length, so that it is rigid and easy to mount.
  5. It is easy to install on pipeline which is laid horizontally or vertically.
  6. This valve is tightly sealed without leakage under the pressure water test.
  7. Safe and reliable in operation, high interference-resistance.
  8. The connection dimensions of flanges accord with the standards of GB4216-84 GB4216.5-84.
  9. The face to face dimensions are in accordance with ISO5752-82. The stem of the valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeline. For vertical installation the direction of flow should be downward.
API594 Dual Plate/Double Plate Wafer Type Swing Check Valve (GAH76H)
Main Parts and Material.
 
Part name Material
Body WCB A352 LCB A217 WC6 A217 WC9 A217 C5 A217 C12 A351 CF8 A351 CF8M
Disc A351 CF8 A351CF8 A182 F11 A182 F22 A217 C5 A217 C12 A182 F304 A182 F316
Stem A182 F304 A182 F304 A182 F304 A182 F304 A182 F304 A182 F304 A182 F304 A182 F316
Spring Stainless steel
Gasket EPDM(-46~+121°C)/Neoprene(-50~+150°C)/NBR(-35~+113°C)/Fluoror abber(-23~+150°C)

Main External Dimensions.

API594 Dual Plate/Double Plate Wafer Type Swing Check Valve (GAH76H)

Class 150
Size Main Dimensions Weight(kg) Cv
mm in L D D1 D2
50 2 60 51 103 56 2 48
65 2 1/2 67 65 122 73 3 128
80 3 73 80 135 88 4 150
100 4 73 102 173 108 6 394
125 5 86 127 195 132 8 830
150 6 98 152 220 160 13 900
200 8 127 203 277 210 25 1589
250 10 146 254 337 266 39 3300
300 12 181 305 407 310 54 3926
350 14 184 350 448 355 80 5418
400 16 191 400 512 405 117 8256
450 18 203 450 547 455 138 10452
500 20 219 500 604 505 163 14251
600 24 222 600 715 605 331 26511
700 28 305 700 773 700 380 33600
750 30 305 746 824 750 425 48000
800 32 305 796 878 800 560 55200
900 36 368 898 983 910 640 84000
1050 42 432 1050 1142 1055 960 96000
1200 48 524 1200 1302 1205 1400 117600
 
Class 300
50 2 60 51 110 58 3 48
65 2 1/2 67 65 128 73 4 128
80 3 73 80 147 88 6 150
100 4 73 102 179 108 8 394
125 5 86 127 214 132 15 830
150 6 98 152 249 160 18 900
200 8 127 203 305 210 31 1589
250 10 146 254 359 266 51 3300
300 12 181 305 420 310 77 3926
350 14 222 350 483 355 117 5418
400 16 232 400 537 405 190 8256
450 18 264 450 594 455 200 10452
500 20 292 500 652 505 265 14251
600 24 318 600 772 608 410 26511
750 30 368 735 882 740 660 48000
900 36 483 873 1044 880 1020 84000
1050 42 568 1035 1196 1045 1540 96000
1200 48 629 1179 1365 1190 2260 117600

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