Quick specifications
- Bar-stock ratingUp to 6000 PSI (414 bar)
- Forged ratingUp to ASME 2500
- MaterialSS304, SS316, Duplex
- EndsScrewed BSP/NPT, SW, BW
- TestingAPI 598 / ISO 5208
Standard ball valves are not designed for hydraulic and instrumentation pressures. A high pressure ball valve is machined from solid stainless steel bar or forged steel, with heavy wall sections, reinforced seats and a blow-out-proof stem, to hold pressures that would deform an ordinary valve.
We manufacture high-pressure screwed-end bar-stock ball valves rated up to 6000 PSI, and forged ball valves up to ASME Class 2500.
Seat selection for high pressure
Virgin PTFE creeps under high load. For high-pressure service, reinforced seats such as RPTFE or PEEK are used to hold their shape and keep sealing. The final rating of the valve is the lower of the body rating and the seat rating at your operating temperature.
Typical uses
- Hydraulic power packs and test benches.
- Instrumentation, sampling and gauge isolation.
- High-pressure gas and chemical injection lines.
- Oil sampling and testing units.
High Pressure Ball Valve – technical specifications
| Material | SS304 / SS304L, SS316 / SS316L, SS410, Duplex SS; Monel, Hastelloy on request |
|---|---|
| Size range | ¼" to 4" (6 mm to 100 mm) (bar-stock); larger forged sizes |
| Pressure rating | Up to 6000 PSI (414 bar) bar-stock; up to ASME Class 2500 forged |
| End connections | Screwed BSP / NPT, Socket Weld, Butt Weld, Compression tube ends |
| Seat & seals | PTFE, RPTFE, PEEK, Graphite; seals in Viton or NBR |
| Temperature | –20 °C to +400 °C depending on seal material |
| Testing | API 598 / BS EN 12266 / ISO 5208 |
Ranges shown cover the product family. The exact rating, size and temperature limit for your valve depend on body material, seat material and design, and are confirmed in our quotation and datasheet.
Key benefits
- Machined from solid bar – no casting defects
- High pressure capability in a compact body
- Blow-out-proof stem design
- Corrosion-resistant stainless steel
- Custom end connections
Applications
- Hydraulic systems
- Instrumentation and sampling lines
- Oil and gas injection and test units
- Chemical dosing at high pressure
Industries served
Frequently asked questions
What pressure can your high pressure ball valves handle?
SS bar-stock screwed ball valves are rated up to 6000 PSI (414 bar); forged designs are available up to ASME Class 2500. Actual rating depends on size, seat and temperature.
Which seat is best for high pressure?
Reinforced PTFE (RPTFE) or PEEK, which resist deformation better than virgin PTFE.
Do you provide test certificates?
Valves are pressure tested before dispatch. Please list the test certificates your project needs in your enquiry so we can confirm the documentation.
