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  • Swing Check Valve-2
  • Swing Check Valve-4
  • Swing Check Valve-3
  • Swing Check Valve-5
  • Swing Check Valve-6
  • Swing Check Valve-7
  • Swing Check Valve-1
  • Swing Check Valve-2
  • Swing Check Valve-4
  • Swing Check Valve-3
  • Swing Check Valve-5
  • Swing Check Valve-6
  • Swing Check Valve-7
  • Swing Check Valve-1

Swing Check Valve Collection

  • Full bore design
  • Low-pressure drop
  • Silent operation
  • ANSI/ASME compliance
  • Metal/soft seats
  • Horizontal/vertical install
  • Maintenance-free
  • High flow efficiency
  • Durable hinge pin
  • Non-slam design
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Main functions and technical parameters of the product

MeiDe Valve produces Swing Check Valve API 6D-certified design prevents backflow with zero leakage (ANSI Class VI ≤2ppm). Key advantages:

  • Hydraulic Damping Cylinder: Controls disc closure speed (0.5-5s) to eliminate water hammer (70% force reduction).
  • Pigging Compatibility: Manual lock-open mechanism ensures full bore clearance for pipeline pigs.
  • Tungsten Carbide Seals: 2.5mm overlay (HRC 65+) withstands 500,000+ cycles in abrasive flows.
  • Multi-Actuation Modes: Auto-close via flow force, hammer weight, or hydraulic control (-196°C~600°C).
  • NACE MR0175 Option: Monel 400 trim for Hâ‚‚S-rich oil/gas pipelines. Ideal for refineries, mining, and high-pressure water systems.
Size Range 2″-36″(50mm-900mm)) Body Material Carbon Steel,Stainless Steel，Nickel Aluminum Bronze,alloy steel,etc
Temperature Range -196 to 600 degree Pin Material Staniless Steel
Pressure Ratings PN 2.5 to PN420,Class 150 to Class 2500,10K-20K Body Style Double Flanged,Butt Weld,
Design Standard ASME B16.34, BS 1868,API 6D,API 594 Flange Standard ASME B16.5, EN 1092-1,

GOST 33259,ASME B16.47
Testing Standard API598,EN12266-1,

ISO 5208

 Certifications EAC,SIL3,API 6FA,CE,

ISO 19001,API 6D
Face to Face ASME B16.10,EN558-1,

API 6D

 Disc Materials Carbon Steel,Stainless Steel,

Nickel Aluminum Bronze,alloy steel,etc
Shutoff Rating Zero Leakage Seat Material Trim Material is Metal to Metal acc to API 600
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