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Oilong - Model API 603 -Corrosion Resistant Cast Steel Gate Valve
API 603 Gate Valve, Corrosion Resistant Valve, ASME B16.34 Stainless Valve, Bidirectional Sealing Valve, Cryogenic Service Valve. API 603/ASME B16.34 Design: Cast stainless steel (CF8M/CF3M) for chlorides, acids, and seawater corrosion resistance. Bidirectional Sealing: Tight shutoff in oil, gas, or chemical flows with Integral seat, metal-to-metal seats.
- Bonnet Options: Bolted Bonnet: Easy maintenance and seat replacement. Welded Extended Bonnet: Cryogenic service (-196°C) for LNG/LOX applications.
- Low Lifetime Cost: Field-repairable design reduces downtime (API 600 repair kits compatible).
- Design standard: API 603
- Face to face: ASME B16.10
- Flange end: ASME B16.5/ASME B16.47
- BW end: ASME B16.25
- Wall thickness: API 600/ASME B16.34
- Inspection and test: API 598
- Pressure and temperature rating: ASME B16.34
- Product range: NPS 2″~NPS 64″,CL150~CL2500
- Material: WCB?LCB?WCC?WC6?WC9?CF8?CF8M?CF3?CF3M?A890 4A etc.
Full-Port Design:
Eliminates flow turbulence and energy loss, ideal for oil, gas, and water transmission pipelines.
Wedge gates (flexible, solid, or split) compensate for thermal expansion and seat wear.
Robust Sealing Performance:
Parallel or tapered sealing faces (metal-to-metal or resilient seated) for leak-proof operation up to ASME Class 2500.
Bi-directional sealing capability for versatile installation.
Industrial Durability:
Bodies in cast steel (WCB/WCC), stainless steel (CF8M/CF8), or alloy steel (WC6/WC9).
Compliant with API 600/603 standards for refinery, petrochemical, and power generation applications.
Common Applications:
- Oil & Gas: Crude oil trunk lines, wellhead isolation.
- Water Treatment: Mainline shutoff in distribution networks.
- Steam Systems: Boiler isolation, turbine bypass control.