DIN Standard Cast Iron Ductile Iron Ggg50 Rubber Disc Non Return Valve

• Media: Water
• Temperature: Ordinary Temperature
• Material: Cast Iron
• Connection Form: Flange
• Structure: Swing
• Pressure: Low Pressure
• Model NO.: RDH44X
• Function: Sfcv Rubber Lobe
• Sealing Form: Rubber Sealed
• Flow Direction: Unidirection
• Standard: DIN
• Application: Water Industrial Usage
• Disc Design: Rubber Coated
• Surface: Epoxy Coating
• Colour: Sea Blue
• Body Material: Ductile Iron
• Transport Package: Plywood Case
• Specification: 50mm to 600mm
• Trademark: Customized
• Origin: China
• HS Code: 8481804090
• Production Capacity: 5000 PCS Per Month

Product Description

A rubber-coated disc check valve is a type of check valve designed to prevent backflow in piping systems. Check valves allow fluid to flow in one direction only, preventing reverse flow or backflow.

The rubber-coated disc refers to the sealing mechanism within the valve. The disc is typically made of metal but coated with rubber or a similar elastomeric material to provide a tight seal against the valve seat. When fluid flows in the intended direction, the pressure pushes the disc away from the seat, allowing the fluid to pass through. However, when there is reverse flow or backflow, the pressure against the disc causes it to press firmly against the seat, preventing fluid from flowing backward.

Rubber-coated disc check valves are commonly used in various applications, including water and wastewater systems, industrial processes, and HVAC systems, where preventing backflow is essential for safety, efficiency, and equipment protection. The rubber coating helps ensure a tight seal, even in situations where there might be slight irregularities or debris in the piping system.