Attribute	Value
Product Name	Ductile Iron Flange Check Valve Metal Valve PN16 DN100 One-Way Valve
Key Words	Check Valve, Swing Check Valve, No Return Valve
Power	Automatic
Temperature	600-900°C
Warranty	18 months
Connection	Flanged
Application	General, Oil and Gas, Petrochemical and Chemical Industry, Water and Wastewater, HVAC
Media	Corrosive
Body Material	Ductile Iron
Packing	Wood box
Customized Support	OEM, ODM, OBM
Pressure	150/300/600/900/1500/2500/3000/4500LB

Product Description

This flange check valve (also called non-return valve or one-way valve) only allows one-way flow of the medium and prevents backflow in fluid pipelines.

Core Structure & Working Principle

Valve Body: Made of ductile iron with surface anti-corrosion spray, pressure-resistant and corrosion-resistant. Suitable for water, oil, gas and other media. Features flanges at both ends for easy pipeline connection.
Markings: "PN16" indicates pressure rating (1.6MPa/16 kg/cm²), "DN100" indicates nominal diameter (100mm inner diameter).
Valve Disc: The heart of the check valve. When medium flows forward, thrust opens the disc; reverse flow automatically closes the valve port via gravity and medium pressure.
Flow Direction: Arrow indicates the only permitted flow direction - critical for proper installation and function.

Applications & Benefits

Water Pump Outlet: Prevents water backflow when pumps stop, avoiding water hammer damage to impellers and pipelines.

Drainage Systems: Ensures efficient condensate drainage in steam pipelines while blocking steam backflow.

Gas Pipelines: Prevents dangerous gas backflow and flashback situations.

Key Advantages: Automatic operation, simplified system design, space-saving, and cost-effective compared to valve/check device combinations.

This valve serves as the pipeline's "one-way gatekeeper," silently preventing backflow risks and protecting system safety - an essential component at water pump outlets and power equipment.

Technical Specifications

Applications: Chemical Industry, Petroleum and Gas
Origin: Zhejiang, China
Media Temperature: High temperature (600-900°C)
Brand: SND
Structure: Swing type

OEM ODM Flange Check Valve PN16 DN100 Ductile Iron Check Valve

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