Forged Steel Check Valves

Short Description:

Product Name: A105/F316L Check Valves
Valve Category: Non-return Valve (NRV)
Brand: Yiluoke
Technical Data: DN15-DN600
Made In: China
Supplier: Xiamen Yiluoke Import and Export Trading Co., Ltd

Product Detail

Forged steel check valves are one‑way valves manufactured by forging process, suitable for high‑temperature and high‑pressure working conditions. They are automatic valves opened and closed by the force of flowing medium. Forged check valves are mainly used to prevent medium backflow, reverse rotation of pumps and motors, and container discharge. According to different structures, forged swing check valves can be divided into forged lift check valves. With different connection modes, there are forged flanged check valves, forged socket‑weld check valves and other types.

Forged Carbon and Stainless Steel Check Valves

Structural Design

‑ Bolted bonnet and pressure‑seal bonnet

‑ Welded seat or replaceable seat

‑ Full‑open disc

‑ Zero‑leakage performance

‑ Flanged ends

‑ Butt‑welded ends

‑ For horizontal or vertical installation

Working Principle of Forged Steel Check Valve

Technical Specifications

Size Range	1/2"‑ 2"
Pressure Class	PN10~PN420, CLASS150~2500
Materials	A105, LF2, F11, F22, F304, F304L, F316, F316L
Temperature Range	-29℃ ~ 425℃

Standards Compliance

Design & Manufacturing: API 602

Face‑to‑Face (End‑to‑End): ASME B16.10

Flanged Connection: ASME B16.5

Butt‑Welded Ends: ASME B16.25

Socket‑Welded Ends: ASME B16.11

Threaded Ends: ASME B1.20.1

Test & Inspection: API 598

Main Component Materials

No.	Part Name	A105N(CS)	F22(AS)	F304/F304L(SS)	F316/F316L(SS)
1	Valve Body	A105N	A182 F22	A182 F304/F304L	A182 F316/F316L
2	Lift Disc	A276 420	A276 304	A276 304/304L	A276 316/316L
3	Gasket	316 with flexible graphite		316 with PTFE
4	Bonnet	A105	A182 F22	A182 F304/F304L	A182 F316/F316L
5	Bolt	A193 B7	A193 B16	A193 B8	A193 B8M
Applicable Medium		Water, steam, oil products, etc.		Nitric acid, acetic acid, etc.
Applicable Temperature		-29℃‑425℃ -29℃‑550℃		-29℃‑200℃