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HS CODE 84818000 SWING CHECK VALVE
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WENZHOU DOMOS FLUID EQUIPMENT CO.,LTD'S
Cast Steel Check Valve is also known as non-return valve or one-way valve. It is opened and sustained in the open position by the force of velocity pressure, and closed by the force of gravity. It is used to prevent the reversal of flow in horizontal or vertical lines. In vertical lines or for any angle from horizontal to vertical, they should be used for upward flow only.
Product Description
Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, etc.
Bolted Bonnet or Pressure Seal Bonnet
Coating: Standard Paint Coating
Design Prohibits Galling or Scoring of Seating Surfaces
Large-sizes Are Provided With Lifting Rings for Easy Hoisting
One-Piece Disc Construction Designed to Withstand Severe Service Conditions.
Size Range: NPS 1-1/2” ~ 48” ; DN40 ~ DN1200
Pressure Rating: Class 150 ~ Class 1500 ; PN10 ~ PN160
End Type: RF, FF, RTJ, BW
Technical Specifications
Design and Manufacture: BS1868 or DIN3840
Pressure-Temperature Rating: ASME B16.34
Face to Face Dimensions: ASME B16.10 or DIN 3202
Flange Ends Dimensions: ASME B16.5 , ASME B16.47 or DIN 2543 ~ 2546, EN1092-1
Butt-Welding Ends: ASME B 16.25 or EN 12627
Inspection & Test: API 598 or DIN 3230
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