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Stainless Steel Check Valve
Engineered from high-grade stainless steel, this check valve offers exceptional resistance to corrosion, rust, and chemical wear, making it ideal for harsh environments and applications involving aggressive fluids. It ensures reliable backflow prevention, long service life, and consistent performance in water treatment, chemical processing, and industrial systems.
Product Description
Valve Types: Available in Wafer, Lug, and Double Flange configurations
Disc Styles: Single Plate, Dual Plate, Wafer Lift, and Threaded options
Body Materials: Stainless Steel, Duplex Steel, Alloy Steel, and other high-performance alloys
End Connections: Threaded options including NPT, BSP, BSPT
Disc Security: Disc assembly firmly locked with high-strength key
Sealing Quality: Seat faces precision-lapped to ensure smooth operation and reliable sealing
Spring Mechanism: High torsion Inconel springs for rapid, precise closing
Special Cleaning Options: Available for sensitive applications like oxygen or chlorine handling
Size Range: DN15 ~ DN1200 (NPS 1/2” ~ 48”)
Pressure Ratings: PN10 ~ PN160 (Class 150 ~ Class 1500)
Technical Specifications
Manufacturing & Design Standard: API 594
Face-to-Face Dimensions: ASME B16.10
Pressure-Temperature Rating: ASME B16.34
Flange Dimensions: ASME B16.5 (2” ~ 24”), ASME B16.47 (26” and larger)
Threaded End Standards: ASME B1.20.1, ISO 228, DIN 2999
Inspection & Testing: API 598
Heavy Duty Cast Iron Check Valve
The Cast Iron Check Valve allows fluid to flow in only one direction and closes automatically when flow reverses. Its operation is entirely automatic, relying on the differential pressure and velocity of the fluid in the line to open and close. Typical applications include hot and cold water, HVAC systems, steam, gas, and other general utility services.
The valve is available in two body materials: cast iron and ductile iron. Construction types include Swing, Lift, and Globe Silent designs. The one-piece disc is designed to withstand severe service conditions, while the large bolted cover allows easy access to the interior for routine maintenance.
Product Description
Body Materials: Cast Iron, Ductile Iron
Valve Construction: Swing Type, Wafer Type, Lift Type, Globe Silent Type
Disc Design: One-piece disc built to withstand extreme service conditions
Seating Surface: Engineered to prevent galling or scoring
Maintenance Access: Large bolted cover for easy inspection and maintenance
Coating Options: Epoxy powder coating or paint coating
End Connections: FF, RF, Wafer Type
Size Range: DN40 ~ DN600 (NPS 1-1/2” ~ 24”)
Pressure Ratings: PN10 / PN16 (Class 125 / Class 150)
Technical Specifications
Design & Manufacturing Standards: MSS SP-71, BS 5153, EN 12334
Face-to-Face Dimensions: ASME B16.10 or DIN 3202 F1 / F6
Flange Dimensions: ASME B16.1, DIN 2501 PN10 / PN16, BS 10 Table D & E, AS 2129 Table D & E
Inspection & Testing: API 598 or DIN 3230
Industrial Cast Steel Check Valve
The Cast Steel Check Valve, also called a non-return or one-way valve, allows flow in only one direction. It opens automatically under the force of velocity pressure and closes by the force of gravity. The valve is designed to prevent flow reversal in horizontal or vertical lines. For vertical or inclined installations, it is suitable for upward flow only.
The valve is available in a range of body materials, including carbon steel, stainless steel, alloy steel, and duplex steel. Its one-piece disc construction ensures durability and reliability even under severe service conditions. Standard paint coating provides additional protection against environmental exposure. Large valves are fitted with lifting rings for easier handling during installation and maintenance.
Product Description
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, and other high-performance alloys
Bonnet Type: Bolted Bonnet or Pressure Seal Bonnet
Valve Construction: Designed to prevent galling or scoring of seating surfaces
Disc Design: One-piece disc capable of withstanding severe service conditions
Maintenance & Handling: Large valves equipped with lifting rings for easy hoisting
Coating: Standard paint coating for corrosion resistance
End Connections: RF, FF, RTJ, Butt-Weld (BW)
Size Range: DN40 ~ DN900 (NPS 1-1/2” ~ 36”)
Pressure Ratings: PN10 ~ PN160 (Class 150 ~ Class 1500)
Technical Specifications
Design & Manufacturing Standards: BS 1868 or DIN 3840
Pressure-Temperature Rating: ASME B16.34
Face-to-Face Dimensions: ASME B16.10 or DIN 3202
Flange Dimensions: ASME B16.5, ASME B16.47, or DIN 2543–2546, EN1092-1
Butt-Welding Ends: ASME B16.25 or EN 12627
Inspection & Testing: API 598 or DIN 3230
High Pressure Forged Steel Check Valve
The Forged Steel Check Valve is designed to permit flow in only one direction and to prevent flow reversal caused by back pressure. Operation is automatic, based on flow conditions within the pipeline.
The valve is available in two bonnet designs: bolted bonnet and welded bonnet. It is also available in three main configurations: Swing Check, Lift Check, and Y-pattern Check, allowing selection based on installation and service requirements.
Body materials include forged carbon steel, stainless steel, alloy steel, and other suitable grades. The valve can be supplied in either full port or reduced port, depending on system requirements.
Product Description
Body Materials: Forged Carbon Steel, Stainless Steel, Alloy Steel, and other suitable grades
Bonnet Options: Bolted Bonnet or Welded Bonnet
Valve Configurations: Swing Check, Lift Check, Y-pattern Check
Trim Options: Available in all standard trim configurations
Sealing Surface: Seat faces precision-lapped for smooth finish and superior sealing
Port Options: Full port or reduced port available
End Connections: NPT or BSP threaded, Socket Weld (SW), RF flange, Butt Weld (BW)
Size Range: DN15 ~ DN50 (NPS 1/2” ~ 2”)
Pressure Ratings: PN140 ~ PN320 (Class 800 ~ Class 2500)
Technical Specifications
Design & Manufacture: API 602
Pressure-Temperature Rating: ASME B16.34
Face-to-Face Dimensions: ASME B16.10
Flange Ends: ASME B16.5 or DIN EN 1092
Butt-Welding Ends: ASME B16.25 or EN 12627
Socket Welding Ends: ASME B16.11
Threaded Ends: ASME B1.20.1
Inspection & Testing: API 598 or DIN 3230
