API Wafer Type Check Valve
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN50 to DN1200
- Pressure Class
- Class 150, Class 300
- End connection
- Flanged
Standards
- Design & manufacture
- API 6D, API 605
- Inspection & test
- API 598, API 6D
- Face to face
- API 6D, DIN 3202
- Flange & end dimension
- ASME B16.5, ASME B16.47, MSS SP-44, DIN 2543-2548
- Other standards
- ISO 7005-1
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
- Disc
- Stem
- Spring
Dimensions per size(38 sizes)
| Size | L (mm) | D (mm) | D2 (mm) | D3 (mm) | D1 (mm) | num_bolts | bolt_d_in (in) | bolt_d_mm | L1_RF (mm) | L1_RTJ (mm) | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NPS 2 / DN50 | 60 | 103 | 51 | 56 | 120.5 | 4 | 5/8 | M16 | 140 | 155 | 2 kg |
| NPS 2 1/2 / DN65 | 67 | 122 | 65 | 73 | 139.5 | 4 | 5/8 | M16 | 150 | 165 | 3 kg |
| NPS 3 / DN80 | 73 | 135 | 80 | 88 | 152.5 | 4 | 5/8 | M16 | 160 | 175 | 4 kg |
| NPS 4 / DN100 | 73 | 173 | 102 | 108 | 190.5 | 8 | 5/8 | M16 | 170 | 185 | 6 kg |
| NPS 5 / DN125 | 86 | 195 | 127 | 132 | 216 | 8 | 3/4 | M20 | 190 | 205 | 8 kg |
| NPS 6 / DN150 | 98 | 220 | 152 | 160 | 241.5 | 8 | 3/4 | M20 | 205 | 220 | 13 kg |
| NPS 8 / DN200 | 127 | 277 | 203 | 210 | 298.5 | 8 | 3/4 | M20 | 240 | 255 | 25 kg |
| NPS 10 / DN250 | 146 | 337 | 254 | 266 | 362 | 12 | 7/8 | M24 | 270 | 285 | 39 kg |
| NPS 12 / DN300 | 181 | 407 | 305 | 310 | 432 | 12 | 7/8 | M24 | 310 | 325 | 54 kg |
| NPS 14 / DN350 | 184 | 448 | 350 | 355 | 476 | 12 | 1 | M27 | 325 | 340 | 80 kg |
| NPS 16 / DN400 | 191 | 512 | 400 | 405 | 540 | 16 | 1 | M27 | 340 | 355 | 117 kg |
| NPS 18 / DN450 | 203 | 547 | 450 | 455 | 578 | 16 | 1 1/8 | M30 | 365 | 380 | 138 kg |
| NPS 20 / DN500 | 219 | 604 | 500 | 505 | 635 | 20 | 1 1/8 | M30 | 385 | 400 | 163 kg |
| NPS 24 / DN600 | 222 | 715 | 600 | 605 | 749.5 | 20 | 1 1/4 | M33 | 405 | 420 | 331 kg |
| NPS 28 / DN700 | 305 | 773 | 700 | 700 | 795.5 | 40 | 3/4 | M20 | 455 | - | 380 kg |
| NPS 30 / DN750 | 305 | 824 | 746 | 750 | 846 | 44 | 3/4 | M20 | 455 | - | 425 kg |
| NPS 32 / DN800 | 305 | 878 | 796 | 800 | 900 | 48 | 3/4 | M20 | 460 | - | 560 kg |
| NPS 36 / DN900 | 368 | 983 | 898 | 910 | 1009.5 | 44 | 7/8 | M24 | 540 | - | 640 kg |
| NPS 42 / DN1050 | 432 | 1142 | 1050 | 1055 | 1171.5 | 48 | 1 | M27 | 625 | - | 960 kg |
| NPS 48 / DN1200 | 524 | 1302 | 1200 | 1205 | 1335 | 44 | 1 1/8 | M30 | 740 | - | 1400 kg |
| NPS 2 / DN50 | 60 | 110 | 51 | 58 | 127 | 8 | 5/8 | M16 | 155 | 175 | 3 kg |
| NPS 2 1/2 / DN65 | 67 | 128 | 65 | 73 | 149 | 8 | 3/4 | M20 | 175 | 195 | 4 kg |
| NPS 3 / DN80 | 73 | 147 | 80 | 88 | 168.5 | 8 | 3/4 | M20 | 190 | 210 | 6 kg |
| NPS 4 / DN100 | 73 | 179 | 102 | 108 | 200 | 8 | 3/4 | M20 | 195 | 215 | 8 kg |
| NPS 5 / DN125 | 86 | 214 | 127 | 132 | 235 | 8 | 3/4 | M20 | 215 | 235 | 15 kg |
| NPS 6 / DN150 | 98 | 249 | 152 | 160 | 270 | 12 | 3/4 | M20 | 230 | 250 | 18 kg |
| NPS 8 / DN200 | 127 | 305 | 203 | 210 | 330 | 12 | 7/8 | M24 | 280 | 300 | 31 kg |
| NPS 10 / DN250 | 146 | 359 | 254 | 266 | 387.5 | 16 | 1 | M27 | 315 | 335 | 51 kg |
| NPS 12 / DN300 | 181 | 420 | 305 | 310 | 451 | 16 | 1 1/8 | M30 | 365 | 385 | 77 kg |
| NPS 14 / DN350 | 222 | 483 | 350 | 355 | 514.5 | 20 | 1 1/8 | M30 | 410 | 430 | 117 kg |
| NPS 16 / DN400 | 232 | 537 | 400 | 405 | 571.5 | 20 | 1 1/4 | M33 | 435 | 455 | 190 kg |
| NPS 18 / DN450 | 264 | 594 | 450 | 455 | 628.5 | 24 | 1 1/4 | M33 | 475 | 495 | 200 kg |
| NPS 20 / DN500 | 292 | 652 | 500 | 505 | 686 | 24 | 1 1/4 | M33 | 510 | 535 | 265 kg |
| NPS 24 / DN600 | 318 | 772 | 600 | 608 | 813 | 24 | 1 1/2 | M39 | 560 | 585 | 410 kg |
| NPS 30 / DN750 | 368 | 882 | 735 | 740 | 921 | 36 | 1 3/8 | M36 | 650 | - | 660 kg |
| NPS 36 / DN900 | 483 | 1044 | 873 | 880 | 1089 | 32 | 1 5/8 | M42 | 800 | - | 1020 kg |
| NPS 42 / DN1050 | 568 | 1196 | 1035 | 1045 | 1244.5 | 36 | 1 3/4 | M45 | 920 | - | 1540 kg |
| NPS 48 / DN1200 | 629 | 1365 | 1179 | 1190 | 1416 | 40 | 1 7/8 | M48 | 1010 | - | 2260 kg |
Approvals
Features
- Short face-to-face dimensions, 1/4 to 1/8 times those of a traditional flanged check valve
- Compact and lightweight, approximately 1/4 to 1/20 of the volume and weight of a traditional flanged check valve
- Disc closes quickly with reduced water hammer pressure
- Suitable for installation on horizontal or vertical pipelines
- Fluent flow passage with low flow resistance
- Sensitive actuation with good sealing effect
- Short disc travel reduces impact force on valve closing
- Integral structure with clean outline
- Long service life with high reliability
Description
API wafer type dual-plate check valve in Class 150 and Class 300 ratings, covering NPS 2 to NPS 48 (DN50 to DN1200). Designed and manufactured to API 6D with end flange connections per ASME B16.5, ASME B16.47, API 605, MSS SP-44, ISO 7005-1 and DIN 2543-2548, available with raised face (RF) or ring-type joint (RTJ) facing.
Selection notes
This check valve is a wafer type and dual plate pattern, supplied for flanged installation.
Sizes run DN50 to DN1200, in Class 150, Class 300.
The body is offered in A216 WCB, A352 LCB, A217 WC6 and A217 WC9, so the grade can be matched to the service rather than the other way round.
It is catalogued for Oil & Gas.
Built to API 6D, DIN 3202, API 598, ASME B16.34 and ASME B16.5.
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
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