Pressure Seal Cover Swing Check Valve

Design: API 594; API 6D; B16.34; BS EN 12516; GB/T 12236

Connection type:

1. END FLANGE(RF/RTJ): ASME B16.5 (2” to 24”) & ASME B16.47 series A & B(≥ 26”); BS EN 1092; GB/T 9113

2. BUTT WELD(BW):ASME B16.25

Face to Face: ASME B16.10; BS EN 558; GB/T 12221

Test: API 598; API 6D; BS EN 12266; GB/T 26480

Product range:

Size: NPS 2″~48″(DN50~DN1200)

Pressure Rating: ASME CLASS 900LB~2500LB(PN150~PN420)

Next Product

Product Detail

Product Tags

Material of body

Casting
Carbon Steel	WCB,WCC
Low Temperature Steel	LCB,LCC
Stainless Steel	CF8, CF8M, CF3, CF3M, CF8C, CF10, CN7M, CG8M, CG3M etc.
Alloy Steel	WC6, WC9, C5, C12, C12A
Duplex Steel	A890(995)/4A/5A/6A
Nickel-Based Alloy	Monel, Inconel625/825, Hastelloy A/B/C etc.

Forging
Carbon Steel	A105
Low Temperature Steel	LF2
Stainless Steel	F304,F316,F321,F347
Alloy Steel	F11,F22,F5,F9,F91
Duplex Steel	F51,F53,F44
Nickel-Based Alloy	Monel, Inconel625/825, Hastelloy A/B/C

Features and Benefits

Check valves are installed to allow flow in one direction only and they protect systems that can be affected by reverse flow, such as a system shutdown.

1. Innovative pressure seal design for enhanced performance and reliability.

2. Hinge pin does not penetrate to the outside, eliminating leakage and allowing for convenient in-line service.

3. All moving parts attached to the hanger block or hanger ring, enabling easy removal for maintenance purposes.

4. The seat and disc are forged and hardfaced with CoCr alloy, finely ground and lapped to a mirror finish. This ensures maximum resistance to erosion and extends the service life of the valve. The seat is securely seal-welded to the body.

5. The disc is capable of partial adjustment to achieve tight shutoff. When fully open, it rests against a stop for optimal positioning.

6. Hinge pin features CoCr alloy bearings, ensuring smooth operation and durability.

7. Convenient in-line serviceability with all components easily accessible for maintenance. Seating faces can be re-lapped for continued effectiveness.

8. The cover is forged, contributing to the strength and reliability of the valve.

9. The self-sealing ring of the cover and the valve body adopts a small-angle sealing cone surface, and the sealing surface is precision-processed, so the sealing effect is better and the service life is longer.

TH-Valve Nantong can design and produce both built-in and external pressure seal cover check valves according to customers’ needs.

Previous: Tilting Disc Check Valve (Bolted Cover, Pressure Seal Cover)

Next: Bolted Bonnet Swing Check Valve

check valves