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WDL Valve API 6D swing check valve automatically prevents reverse flow in oil, gas, petrochemical, power and industrial piping systems. The valve is available in carbon steel, stainless steel and special-alloy materials with ASME Class 150 to Class 1500 pressure ratings.
- Valve Type: Swing check valve
- Design Standards: API 6D, BS 1868 and ASME B16.34
- Size Range: NPS 2–24 / DN50–DN600
- Pressure Rating: ASME Class 150–1500
- Body Materials: WCB, CF8, CF8M, CF3 and other alloys
- End Connections: RF, RTJ or butt-weld ends
- Testing Standard: API 598
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WDL Duplex Check Valve provides automatic prevention of reverse flow for seawater and desalination systems and offshore and marine pipelines. Connections, trim and operation are selected to the project conditions.
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H44H ASME swing check valve is designed for automatic backflow prevention in Class 150, 300, 600 and 900 pipeline systems. With a swing disc structure, straight-through flow passage and selectable carbon steel or stainless steel materials, it is suitable for water, steam, oil, gas and industrial service.
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WDL Hastelloy Check Valve provides automatic prevention of reverse flow for mixed-acid chemical processing and wet chlorine and hypochlorite systems. Connections, trim and operation are selected to the project conditions.
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WDL Inconel Check Valve provides automatic prevention of reverse flow for high-temperature chemical lines and steam and hot-gas systems. Connections, trim and operation are selected to the project conditions.
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WDL Monel Check Valve provides automatic prevention of reverse flow for hydrofluoric acid processing and marine and seawater systems. Connections, trim and operation are selected to the project conditions.
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WDL NAB C95800 Check Valve provides automatic prevention of reverse flow for shipboard seawater systems and offshore cooling-water lines. Connections, trim and operation are selected to the project conditions.
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WDL Nickel Check Valve provides automatic prevention of reverse flow for caustic soda systems and alkali concentration equipment. Connections, trim and operation are selected to the project conditions.
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WDL Stainless Steel Check Valve provides automatic prevention of reverse flow for water and utility pipelines and food and pharmaceutical processing. Connections, trim and operation are selected to the project conditions.
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WDL Super Austenitic Check Valve provides automatic prevention of reverse flow for seawater and brackish-water systems and flue-gas desulfurization. Connections, trim and operation are selected to the project conditions.
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WDL Tantalum Check Valve provides automatic prevention of reverse flow for hydrochloric acid equipment and sulfuric acid process lines. Connections, trim and operation are selected to the project conditions.
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WDL Titanium Check Valve provides automatic prevention of reverse flow for seawater and desalination plants and chlor-alkali processing. Connections, trim and operation are selected to the project conditions.
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WDL Zirconium Check Valve provides automatic prevention of reverse flow for acetic and formic acid processing and selected sulfuric acid systems. Connections, trim and operation are selected to the project conditions.
