Forged Lift Check Valve – Class 800 / 1500 / 2500
API 602 / ISO 15761 forged lift check valve with spring-loaded disc for reliable non-return service in high-pressure, small-bore piping.
- Pressure
- Class 800 – Class 2500
- Size Range
- 1/2" to 1.5"
- Testing
- API 598
⚠ Pending engineering review: Pending engineering sign-off: temperature maxima are flat figures, not full ASME B16.34 P-T table values; size range conflicts with a 2" row in the catalogue dimension table.
Model number pending — not yet assigned by engineering/sales.
- 01
Pressure Rating
Class 800 / Class 1500 / Class 2500
- 02
Size Range
- 03
Material
- 04
Standards
01
Pressure Rating
Class 800 / Class 1500 / Class 2500
Reference standard & materials
Same data as the printed catalogue
Reference standard
- Mfg. Std
- API 602 / ISO 15761
- Face to Face
- Mfg. Std.
- Butt Weld End
- ASME B16.25
- Socket Weld End
- ASME B16.11
- Screwed End
- ASME B1.20.1
- Insp. & Test.
- API 598
- Press & Temp.
- ASME B16.34
Material of construction
| No. | Description | Carbon Steel | Alloy Steel | Stainless Steel 316 | Stainless Steel 304 | Low Temp Carbon Steel |
|---|---|---|---|---|---|---|
| 01 | Body | ASTM A105 | ASTM A182 GR.F11 CL-2 | ASTM A182 GR F316 | ASTM A182 GR F304 | ASTM A350 GR LF2 |
| 02 | Seat | AISI 410 | 13% Cr. Steel | SS 316 | SS 304 | SS 304 |
| 03 | Plug | AISI 410 | 13% Cr. Steel | SS 316 | SS 304 | SS 304 |
| 04 | Spring | ASTM A313 GR. 304 / ASTM A313 GR. 316 | ASTM A313 GR. 304 / ASTM A313 GR. 316 | ASTM A313 GR. 304 / ASTM A313 GR. 316 | ASTM A313 GR. 304 / ASTM A313 GR. 316 | ASTM A313 GR. 304 / ASTM A313 GR. 316 |
| 05 | Gasket | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled |
| 06 | Cover | ASTM A105 | ASTM A182 GR.F11 CL-2 | ASTM A182 GR F316 | ASTM A182 GR F304 | ASTM A350 GR LF2 |
| 07 | Joint Bolts | ASTM A193 GR. B7 | ASTM A193 GR. B7 | ASTM A193 GR. B8M | ASTM A193 GR. B8 | ASTM A193 GR. B7 |
Dimensions
mm · ASME B16.5 flange details · weights on request
| Face to Face (A) | Height (H Appx.) | SW Details | |||||||
|---|---|---|---|---|---|---|---|---|---|
| NPS | DN | 800# | 1500# | 2500# | 800# | 1500# | 2500# | ØB | L |
| 1/2" | 15 | 80 | 90 | 105 | 60 | 70 | 80 | 22.0 | 9.5 |
| 3/4" | 20 | 90 | 105 | 127 | 70 | 80 | 100 | 27.4 | 12.5 |
| 1" | 25 | 105 | 127 | 140 | 80 | 100 | 125 | 34.1 | 12.5 |
| 1.5" | 40 | 127 | 140 | 140 | 105 | 125 | 125 | 49.0 | 12.5 |
| 2" | 50 | 140 | 140 | 140 | 115 | — | — | 61.0 | 16.0 |
Technical specifications
- Material
- Body: ASTM A105 (CS) / ASTM A182 GR.F316 (SS) / ASTM A182 GR.F304 / ASTM A350 GR.LF2
- Pressure Rating
- Class 800 / Class 1500 / Class 2500
- Temperature Range
- -29°C to +427°C (ASTM A105 CS; LF2 to -46°C)
- Eng Note
- Pending engineering sign-off: temperature maxima are flat figures, not full ASME B16.34 P-T table values; size range conflicts with a 2" row in the catalogue dimension table.
- Size Range
- 1/2" to 1.5" (DN 15–40)
- End Connections
- NPT (F) × Socket Weld; NPT (F) × NPT (F); Butt Weld
- Bonnet Types
- Bolted Cover / Welded Cover
- Spring
- ASTM A313 GR.304 / ASTM A313 GR.316
Standards & testing
- MFG. STD: API 602 / ISO 15761
- Socket Weld End: ASME B16.11
- Screwed End: ASME B1.20.1
- Insp. & Test: API 598
- Press. & Temp: ASME B16.34
Custom engineering
Special trims, exotic materials and non-standard dimensions are available against your datasheet — send it with your quote request and our engineering team will respond with a compliant proposal.
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