Product details

FORGED STEEL CHECK VALVE

Threaded steel check valves are used to prevent backflow in pipelines. Flow occurs in a straight line through the valve when the output pressure decreases (pressure differential). The disc then moves to the open position, allowing flow through the line. When the input pressure is lower than the output pressure, the valve disc closes, preventing flow. Check valves can be installed horizontally or vertically along the pipeline system, but must be installed according to the flow direction indicated by the arrow markings on the body.

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Technical Specifications

Size: DN15 – DN500 (15A – 500A)
Body Material: Forged steel A105 (WCB or stainless steel 304/316 available for special environments)
Disc Material: Forged steel or stainless steel, wear-resistant design
Seat Material: PTFE (Teflon), RPTFE available for high-temperature applications
Installation Types:
- Threaded (BSPT, NPT)
- Flanged (JIS, DIN, ANSI)
- Clamped or welded (Socket weld, Butt weld)
Working Pressure: PN10 – PN40 (equivalent to Class 150 – 300)
Operating Temperature: -10°C ~ 400°C
Design Standards: API, ANSI, DIN, BS
Applications: Steam systems, hot oil, water, compressed air, chemicals, fire-fighting systems, oil & gas industry
Origin: Hitek – Taiwan