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Distributor Norriseal Valve Indonesia
Norriseal WellMark Indonesia

Norriseal Check Valve

Norriseal Check Valves are engineered for high-reliability backflow prevention in demanding oil & gas, petrochemical, and industrial fluid processing operations. Featuring rugged construction, tight shut-off design, and low pressure drop performance, these check valves protect upstream equipment against reverse flow surge.

Built to meet rigorous industry standards (API 6D, NACE MR0175), Norriseal check valves excel in high-pressure oilfield lines, production manifolds, gas compression systems, and severe service liquid/gas pipeline applications.

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Norriseal Check Valve

Technical Specifications

Standard configuration and operational parameters for Norriseal Check Valves.

Parameter Standard Configuration
Product Brand & Category Norriseal (WellMark) - Check Valve Series (Piston, Piston-Cone, or Wafer-Piston Style)
Valve Design / Type Non-slam Piston Check Valve / Piston-Cone Backflow Preventer
Body Materials Ductile Iron, Carbon Steel (A216 WCB), Stainless Steel (CF8M), LCC/LCB
Applicable Medium Crude Oil, Natural Gas, Sour Gas (H2S), Produced Water, Hydrocarbons
Operating Pressure Rating ANSI Class 150 to Class 2500 / 2,000 PSI to 5,000 PSI CWP
Seat & Seal Options Buna-N, Viton (FKM), HNBR, PTFE, Metal-to-Metal Hard Faced
Connection Ends / Sizes 1" to 12" Threaded (NPT), Flanged (RF/RTJ), Wafer, or Socket Weld
Compliance & Standards API 6D, NACE MR0175 / ISO 15156 (Sour Service Compliant), ASME B16.34
Operating Temperature Range -29°C to 204°C (-20°F to 400°F) depending on elastomer choice
Flow Pattern Full Port or Standard Port (Minimized turbulence and pressure drop)
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