Inline High Pressure Check Valve – Up to 10000 PSI (690 bar)
Heavy-duty inline high pressure check valves with 1/4" to 2" size range rated up to 10000 PSI (690 bar). Available in swing check, piston check, and spring-loaded designs. Designed per API 602, ASME B16.34 and tested per API 598. Ideal for oil & gas, chemical, pump protection, and high-pressure instrumentation systems.
Product Overview
Inline high pressure check valves ensure unidirectional flow and prevent reverse flow in high-pressure systems. Available with screwed (NPT/BSPT), socket weld, or butt weld ends. Spring-loaded design for vertical or horizontal installation; swing type for low pressure drop applications. Temperature range: -20°C to +232°C.
In Stock
10000 PSI
API 602
Key Specifications
Size: 1/4" to 2" (DN8 to DN50)
Pressure: 10000 PSI (690 bar)
Temperature: -20°C to +232°C
Design: API 602, ASME B16.34
Testing: API 598
Ends: NPT/BSPT, Socket Weld, Butt Weld
Types: Swing, Piston, Spring-loaded
Cracking P: 0.5 bar (std), 0.2 / 1.0 bar
Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Ductile Iron (ASTM A536 / EN-GJS-400-15) |
| Stem / Spindle | SS 410 / SS 420 |
| Seat / Trim | EPDM / NBR / Bronze |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | EN 1171 / AWWA C509 / BS 5163 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | PN16 / PN25 |
Material of Construction
| S.N. | Parts Name | Material |
|---|---|---|
| 01 | BODY | S.S. 304, SS. 316 |
| 02 | PISTON | S.S. |
| 03 | SPRING | S.S. |
Dimension Tables
| Size | Inch | MM | A | HEX |
|---|---|---|---|---|
| 1" | 1" | 25 | 140.0 | 42.0 |
| 1.1/4" | 1.1/4" | 32 | 140.0 | 55.0 |
| 1.5" | 1.5" | 40 | 169.0 | 62.0 |