Description
The Single Plate Check Valve 4 Inch SS304 with PTFE Seat is a high-quality wafer-type non-return valve (NRV) engineered for reliable flow control and backflow prevention in industrial applications.
Constructed with a stainless steel 304 body and disc, the valve offers excellent corrosion resistance and durability, even in demanding service conditions. The PTFE (Teflon) seat provides a tight, leak-proof seal and outstanding chemical compatibility, making it suitable for aggressive or corrosive fluids.
Its spring-loaded single plate design ensures fast closure to prevent water hammer and backflow, while the wafer configuration allows for easy installation between flanges, saving both space and weight.
This valve is commonly used in water treatment plants, chemical industries, HVAC systems, oil & gas pipelines, and marine applications.
Key Features:
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Type: Single Plate Wafer Check Valve (NRV)
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Size: 4 Inch (DN100)
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Body Material: Stainless Steel SS304
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Disc Material: Stainless Steel SS304
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Seat Material: PTFE (Teflon)
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Operation: Spring Loaded, Single Plate
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Pressure Rating: PN10 / PN16 / ANSI 150#
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End Connection: Wafer Type (Fits between flanges)
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Design Standard: API 594 / EN 558 / ISO 5752
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Installation: Horizontal or Vertical Flow
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Temperature Range: -10°C to +180°C
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Media: Water, Oil, Air, Gas, Chemicals, Steam
Advantages:
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100% stainless steel construction for corrosion resistance
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PTFE seat for excellent chemical and temperature resistance
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Compact wafer design for easy installation
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Low pressure loss and energy-efficient flow
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Quick closing to prevent water hammer
