Carbon Steel Y-Type Swing Check Valve

NSV Carbon Steel Y-Type Swing Check Valve

The NSV carbon steel Y-type swing check valve features a Y-shaped flow path and a swing disc design, allowing media to flow nearly straight through—significantly reducing turbulence and pressure drop.

It opens and closes automatically based on line pressure, effectively preventing backflow and protecting pumps, compressors, and other critical equipment. Suitable for high-temperature, medium-to-high-pressure steam, oil, and non-corrosive services, with robust construction and reliable performance.

Key Features

Valve type: Y-type swing check valve

Body material: Cast carbon steel--WCB, WC9, etc.

Sealing: Metal-to-metal hard seal

End connection: Flanged (RF/FF) or Butt-Weld (BW)

Actuation: Automatic

Operating temperature: -29°C to 540°C (depending on material)

Pressure rating: Class 150–1500 (PN16–PN250)

Size range: 2"–20" (DN50–DN500)

Performance Advantages

Y-shaped flow path minimizes energy loss

Swing disc responds quickly with low cracking pressure

Cast carbon steel offers high strength and thermal stability

Metal seal suitable for high-temperature steam or hot oil

Lightweight disc reduces water hammer

Suitable for horizontal or inclined installations

Typical Applications

Power plant main steam lines, boiler feedwater systems, petrochemical high-temperature oil piping, district heating networks, compressor discharge backflow protection.

Quality Assurance

Shell and seat tested per API 598 / ISO 5208. EN 10204 3.1 Material Test Certificate provided. Cast bodies comply with ASTM A216 (WCB) or ASTM A217 (WC9) standards, radiographic or ultrasonic inspection available upon request.

FAQ

1. Q:Do you have customized valve?

A:Yes,we can supply customized valves.

2. Q: What kinds of valves do you manufacture?

A: We usually manufacture valves made of various materials such as cast Iron/ carbon steel,stainless steel,Alloy steel and industrial valves such as ball, gate, globe, check, bellows seal and ETC. For detail information, please refer to " Download>E-Catalog” of homepage.
3. Q:What’s the packing for shipping?

A:Its carton for small valves(sample) and plywood case(don’t to fumigate).

4. Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.