CHECK VALVES: Piston

Product Features:

• Full metal sealing
• Metal piston to seat sealing
• Explosive decompression resistant seat inserts available
• Zero leakage on both liquids and gases
• High strength robust design
• All end connection option available
• Topside and Subsea options available
• Design optimised to maximise flow area through the check valve

Other materials can be offered to meet customer requirements.

Typical Applications:

• Liquid and gas process flow control
• System protection from reverse flow or rapid depressurisation
• Chemical injection.
• Hydraulic control systems
• Sealant injection and test ports

Working Pressures & Bore Size:

• Up to 20,000 psi Working Pressure
• 5mm to 150mm through bore

Typical Materials:

• Stainless steel UNS S31600
• Duplex steel UNS S31803
• Super Duplex UNS S32760
• Inconel Alloy UNS NO6625
• Other materials can be offered to meet customer requirements.

Standards:

Pacson gate valves are designed and manufactured in accordance with:

• API 6A
• API 17D
• ASME
• ANSI
• The European Union Pressure Equipment Directive

Qualifications:

• API 6A Appendix F PR2
• Endurance cycle testing.
• Failure testing.
• High pressure nitrogen testing
• Low pressure nitrogen testing