AsalAra Swing Check Valve
- Swing Check Valve
The AsalAra Swing Check Valve uses one or two pivoting discs mounted on a hinge to control the flow of fluid through a pipeline. When fluid flows forward, the disc swings open allowing unobstructed flow. When flow reverses, gravity or backpressure causes the disc(s) to close tightly, preventing backflow and protecting pumps, compressors, and other equipment.
The single plate variant features one large disc, while the dual plate design has two smaller discs that close toward the center, reducing the valve’s face-to-face length and making it suitable for installations with limited space.
These valves are durable, reliable, and designed to minimize pressure drop while offering efficient sealing. They are used in a variety of industries including water treatment, oil and gas, power plants, and chemical processing.
NPS (inch)
DN (mm)
2” – 72”
DN 50 – DN 1800
Standard
Rating
ASME
Class 150, 300, 600, 900, 1500
- Body: Carbon Steel ASTM A216 WCB, Stainless Steel ASTM A351 CF8/CF8M, Alloy Steels
- Disc: Stainless Steel, Hardened Alloys, or Coated Materials for corrosion resistance
- Seat: Metal or soft resilient seats for tight sealing
- Hinge Pin: High strength stainless steel or alloy steel
- Flanged – ASME B16.5 / B16.47
- Butt Weld Ends – ASME B16.25
- Socket Weld Ends – ASME B16.11
AsalAra Control Valve Series
Swing Check Valves (Single Plate / Dual Plate)
Swinging Disc Design
Quick and reliable closing to prevent backflow
Single or Dual Plate Options
Flexibility for space and performance requirements
Compact Face-to-Face (Dual Plate)
Saves installation space in pipelines
Robust and Durable Construction
Long service life under harsh conditions
Low Pressure Drop
Efficient flow with minimal energy loss
Wide Material Options
Suitable for corrosive and abrasive environments
Easy Maintenance
Disc and seat can be inspected and serviced with minimal downtime
Water and wastewater treatment systems
Oil and gas pipelines and refineries
Power generation plants
Chemical and petrochemical industries
HVAC and industrial process piping
- Metal or resilient seat configurations
- Lug, wafer, or flanged body styles
- Anti-corrosion coatings and hardfacing options
- Customized sizes and pressure ratings
- Optional silencers or dampers to reduce water hammer
- API 6D / ASME B16.34
- API 594 – Swing Check Valve standards
- API 598 – Testing and inspection
- NACE MR0175 / ISO 15156 for sour service
- PED 2014/68/EU compliance
AsalAra’s Swing Check Valves offer versatile, space-saving designs combined with reliable, low-maintenance operation, making them a trusted solution for effective backflow prevention across a wide range of industries.