Check Valves

Pacson’s subsea Piston Check Valve is available from 1/2” to 6” and Pressures up to 17,500psi.
The valve can also be incorporated within needle and gate valves for chemical injection applications.

Product Features

• Metal to metal seat sealing with additional Polymeric secondary seat seal for bubble tight isolation on gas service and at low pressures
• No requirement for elastomers in process wetted areas
• Metal seated static body joint. Elastomer variation shown is optional
• API 17D Second Edition qualified
• 2.1/16” Non-hard face variant qualified to 10,000psi. Although API 6A Annex I only requires to 5,000psi its qualified to 7,500 psi qualified
• 2” and larger can be offered c/w hard facing for sand slurry applications

Design Benefits

• No requirement for elastomers in process wetted areas
• API 17D Second Edition qualified
• 2-1/16” Non-hard face variant qualified to 10,000psi. Although API 6A Annex I only require to 5,000psi its qualified to 7,500 psi qualified

Applications include Surface wellheads, valve stem sealant injection, pressure venting, etc

Available Sizes & Pressure Ratings

Materials Offered
½” NPT & L.P. up to 10,000 PSI Max WP
API 6A Type II connection up to 20,000 PSI Max WP

• 316 Stainless Steel
• Duplex UNS 31803
• Inconel UNS NO6625
• Inconel UNS NO7718

Product Features

• Utilises a metal to metal primary seat seal with elastomeric back-up for bubble tight gas and low pressure sealing
• The Pacson Bleeder Plug with API 6A Type II connection will be API 6FA fire tested by the end of 2018
• A range of Stinger Tools can be supplied to work with the Pacson Bleeder Plugs

Design Benefits

• A range of Stinger Tools can be supplied to work with the Pacson Bleeder Plugs
• Simple, established design
• Double barrier to process
• Inherently fire-safe design