Surface Safety Valve Pneumatic Main Valve Piston Type 1. API 6A-SSV 2. Material Class: AA BB CC DD EE FF 3. Product Specification level: PSL 1~PSL 3G 4. . 6. More convenient in maintenance: No complicated circuit system, it is not easy to be damaged for its full stainless steel structure. You can exactly infer where breakdowns happen from observing pressure data of each port regularly; Checking hydraulic oil mark regularly and replenishing hydraulic oil timely.

A piston check valve is essentially a lift check valve. It has a dashpot consisting of a piston and cylinder that provides a cushioning effect during operation. Because of the similarity in design to lift check valves, the flow characteristics through a piston check valve are essentially the same as through a lift check valve. Installation is the same as for a lift check in that the flow must enter from under the seat.Construction of the seat and disk of a piston check valve is the same as for lift check valves.

Key Specifications/Special Features: 1)  Design and manufacture conform to: API, ANSI, JIS, DIN, JB. 2)  Test and inspection conform to: API598, GB/T13927, JB/T9092 3)  Pressure: From ANSI class 150 to 2500 (PN1.6 - 42MPa) 4)  Structure features: Bolted bonnet, welted bonnet, pressure seal bonnet 5)  Connection ends conform to: Butt-welded ends dimension conform to ANSI B16.11; JB/T1751 Flanged ends conform to ANSI B16.5;

Stainless Steel Wafer Type Piston Valve Place of Origin: China Pressure: Medium Pressure Material: Stainless Steel Structure: Butterfly Certification: API, ISO9001, AZ Brand Name: Cnjoch Power: Pneumatic Media: Water Terms of Payment: L/C, T/T Supply Ability: 5000 Piece/Pieces per Month Minimum Order: 2 Piece/Pieces Packaging: Wooden package Delivery Lead Time: 45 Features: 1) Design: API 594 
 

Swing Check Valves, lift check valves, piston check valves Standard compliance 1) Design and manufacture: API6D, ANSI B16.34, BS1868 2) Test and inspection: API598 3) Face to face dimensions: ANSI B16.10 4) Flanged end: ANSI B16.5, B16.47 SERIES A & SERIES B 5) Butt-welding end: ANSI B16.25 6) Other standards (DIN, BS, JIS) is also available upon request. Specifications: 1) Size: 2" to 36" 2) Class: 150LB to 2500LB

Piston Check ValveStandards compliance: Basic design: Bs 1868 Face to face dimension: ANSI b16.10 End to end dimension: ANSI b 16.10 Flanged ends: 2"-24" to ANSI b 16.5 >24: To mss sp-44 To API 605 on request B. W. Ends to ANSI b 16.25 Shell wall thickness: 2"-24" to API 600 >24" to manufacture Manufacturing to nace mr-01-75 on requestTEST PRESSURE TO API 598 BodyMateerial Shell Test(Hydrostatic) Seat Test