Duplex Stainless Steel, Titanium, Nickel, Monel, Hastelloy, 20# Alloy Rotary Check Valve /Double Flap Check Valve / Lift Check Valve

• Media: Water
• Temperature: Ordinary Temperature
• Material: Stainless Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Connection Form: Flange
• Structure: Swing
• Pressure: Low Pressure
• Function: Sfcv Rubber Lobe
• Sealing Form: Gland Packings Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage
• Disc: Swing Type
• Flow Pass: Full Bore / Conventional
• Transport Package: Standard Seaworthy Packing
• Specification: Customized
• Trademark: Gaofeng
• Origin: China
• HS Code: 8481804090
• Production Capacity: 11000 PCS/Year

Product Description

Brief introduction
Product name:                                 Rotary check valve /double flap check valve / lift check valve
DN:                                                            2"(50)~ 20"(500)
CLASS(PN):                                          150LB(PN16)~2500LB(420)

Application Standard
Pressure temperature class:                  ASME B16.34 
Design:                                                   API 6D, GB/T 12236, ASME B16.34, GB, GOST, DIN, BS,etc.
Test:                                                       API 6D / API 598 / GB / T 13927 and other relevant national standards.
Structure length:                                    API 6D, ANSI B16.10, GB 12221, GOST, DIN, BS / manufacturer                                                                            standard / user requirements.
Connection end:                                    BW (ASME B16.25, ASME B31.8 / GB / T12224 and other national                                                                          standards), RF (ASME B16.5, ASME B16.47, GB / JB / HG / GOST, DIN,                                                                etc.), RTJ (ASME B16. 5, ASME B16.47, GB / JB / HG / GOST, DIN, etc.),                                                                BW + PUP (the length of the transition tube is customized)
Fire protection requirements:                API 6FD
Anti-static electricity:                             API 608/BS 5351
Valve anti-sulfur:                                   NACE MR. 0175

Structural features
Bonnet structure:                                 Bolted bonnet
Valve seat:                                          Single seat, hard seal
Disc:                                                    Swing type
Flow pass:                                           Full bore / conventional (optional)
Valve cover:                                         Bolted
Operation mode:                                 N/A(Self actuated)
Seal:                                                               Metal seal
Leak rating:                                                  Metal seal: ISO 5208 C or above, ANSI VI
MOC

Material of main parts
Valve body	Carbon steel / stainless steel / alloy steel forgings
Valve flap	Carbon steel / stainless steel / alloy steel spray welding hard alloy
Valve seat ring	Carbon steel / stainless steel / alloy steel forgings
Bolts and nuts	A193/A194, A320, etc.

Product advantages
Ensure that the medium flows in a single direction to prevent backflow.