Forged Steel Swing Check Valve

Swing check valve is suitable for water, steam, oil, gas and weak corrosive media, widely used in petroleum, chemical, electric power, metallurgy and other industries in low and medium pressure piping system. The valve uses the valve flap to rotate around the axis of opening and closing, low resistance, suitable for large flow, low-frequency opening and closing conditions. The working temperature range is generally -29℃ to +550℃, depending on the material. The main function is to prevent backflow of media and protect equipment safety. Commonly used materials include carbon steel, stainless steel, alloy steel, sealing surface can be stainless steel or carbide, with good sealing and durability.

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Forged Steel Swing Check Valve

Model: HHY, H44H

Subtitle：High pressure check valve

The Forged Steel Swing Check Valve is a compact, high-performance solution designed to prevent backflow in small pipelines (DN15-DN50). It utilizes precision forged construction and a lightweight swing-open flap to ensure reliable one-way flow control in instrumentation, sampling and utility systems. The valve automatically...

Tags:High Pressure Check Valve, high pressure valve

Classification:Swing Check Valve, Forged Steel Check Valve

Working conditions:chemical plant, power plants, petrochemical industry, High-temperature and high-pressure working conditions

Product Overview

The Forged Steel Swing Check Valve is a compact, high-performance solution designed to prevent backflow in small pipelines (DN15-DN50). It utilizes precision forged construction and a lightweight swing-open flap to ensure reliable unidirectional flow control in instrumentation, sampling and utility systems. The valve is automatically operated and is not suitable for flow regulation.

Applicable working conditions

Instrumentation: Protection of meters and analyzers in oil and gas systems.

Utility lines: small steam, air and water networks.

Chemical injection: metering pump discharge protection.

Laboratory systems: fluid control for research and test equipment.

Main features

Compact forged design: Material: Forged A105 or F316 steel for space-constrained installations.

Pressure Rating: ANSI Class 800-1500 (PN100-PN260).

Temperature range: -29°C to 200°C (standard seals).

Optimized swing mechanism

Low inertia valve plate: 316L stainless steel valve plate (thickness: 3-6mm) for fast response.

Sealing options: metal-to-metal seal (standard)

Hinged design: self-lubricating bronze bushings for smooth operation. Installation flexibility

Multi-directional mounting: Horizontal or vertical (fluid up) mounting.

Connection type: socket weld: DN15-DN50, flange (optional): DN40-DN50.

Comparison with Mini Ball Check Valves

specificities	Swing Check Valve	Ball check valves
mobility	Higher (full runner design)	Lower (restricted runner)
Chip tolerance	Good (no small moving parts)	Poorer (ball clogging) risk)
pressure drop	<0.05 bar	>0.2 bar
Size range	DN15-DN50	DN6-DN25

Medium of use

Water/hot water, oils, petrochemical, vapor

working condition

chemical plant, power plants, petrochemical industry, High-temperature and high-pressure working conditions, High Temperature High Pressure Steam System

summarize

This compact forged steel swing check valve provides reliable backflow prevention for small, critical applications. Its maintenance-free operation and precision forging make it ideal for instrumentation, utility and chemical injection systems. For automatic switching service only.

Product Parameters

Nominal diameter	DN15-DN50 (½"-2")
Nominal pressure	ANSI Class 800-2500 (PN100-PN420)
Applicable temperature	-29°C to 200°C (EPDM seals) / -29°C to 593°C (metal seals)
Valve Material	ASTM A105 (carbon steel) / F316 (stainless steel)
Valve material	316L SS / 13% Cr Stainless Steel
Valve material	SS316 / 17-4PH Stainless Steel
Sealing Grade	ANSI Class IV (metal) / Class VI (soft seat)