High Quality Non Return Valve Supplier

What is a Non Return Valve?

A Non Return Valve is a type of rotary valve used to regulate flow through pipes. It consists of a circular disk (or “butterfly”) that pivots on its center axis to open or close the flow path inside the valve body.

Materials of Non Return Valve

• Body: Typically constructed from ductile iron, cast steel or aluminum to withstand pressurized systems and corrosion.
• Disk: Available in aluminum bronze, ductile or nodular irons as they are corrosion resistant and provide tight shut-off.
• Seat: The sealing surface is made from resilient materials like EPDM, NBR or FFKM rubber optimized for temperature, chemical compatibility and long life.

Benefits of Non Return Valve

• Prevent Backflow – The primary benefit is avoiding contamination of fluid source from back-siphoning or backpressure flows that could introduce unwanted materials.
• Flow Security – Non-return functionality gives confidence in downstream pressures without risk of reverse surge loads damaging pipes, tanks or equipment.
• Self-Acting Operation – No external power is required as valves from High Quality Non Return Valve Supplier, automatically open and close based on differential pressures across the seat.
• Durability – Engineered valve designs withstand millions of pressure cycles without compromising barrier performance over decades of use.

Utilizations of Non Return Valve

• Water Treatment: Widely employed for regulating flow in municipal, industrial, and coastal desalination plants.
• Power Generation: Frequently utilized in the heating and cooling systems of power stations, refineries, and manufacturing facilities.
• Oil & Gas Industry: Commonly specified for pipelines in drilling rigs, refineries, and LNG/LPG terminals due to their bi-directional capability.
• Mining Sector: Serve in handling mineral slurries, sludge streams, and chemical flows within gold, copper, and coal extraction processes.
• Chemical Applications: The availability of elastomer seat options and suitable body materials make Non Return Valve an excellent choice for the chemical, food, and plastics industries.
• Maritime Usage: Specially coated valves exhibit resilience to seawater intake and are ideal for ballast and bilge applications on ships, offshore rigs, and remote platforms.

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Why Choose Us

Founded in 1956 and situated in Tianjin Binhai New Area, the hub of China’s valve production, TWT stands out with its modern design standards, cutting-edge intelligent manufacturing equipment, and a sophisticated testing center. We are an industry leader focusing on the development and manufacturing of valves. Our extensive product lineup includes butterfly valves, eccentric semi-ball valves, regulating valves, diamond regulating valves, exhaust valves, hydraulic control valves, and over 1000 other types of valves.