Non-Return Valve (NRV)

The Non-Return Valve (NRV) supplied by NOKS Industrial Systems is engineered to automatically permit forward fluid flow while preventing reverse flow through piping systems. Its automatic operation protects pumps, compressors, pipelines, storage tanks, and other critical equipment from damage caused by backflow, improving overall system safety and operational efficiency.

Manufactured from premium-quality cast iron, ductile iron, stainless steel, brass, or carbon steel, the valve provides excellent mechanical strength, corrosion resistance, and long-term durability. Different material options allow the valve to be selected for water, steam, compressed air, oils, chemicals, gases, and other compatible process media.

The valve opens automatically when forward flow generates sufficient pressure and closes immediately when flow stops or reverses. This rapid response minimizes water hammer, reduces equipment wear, prevents contamination, and helps maintain the integrity of the piping system.

Available with threaded, flanged, wafer, socket weld, or butt weld end connections, the Non-Return Valve integrates easily into new installations, maintenance projects, and pipeline upgrades. It is suitable for both low-pressure and high-pressure systems across a wide range of industrial and commercial applications.

The Non-Return Valve (NRV) is widely used in municipal water supply systems, water treatment plants, wastewater treatment facilities, fire protection systems, HVAC installations, chemical processing plants, oil and gas facilities, power generation plants, marine applications, food and beverage processing, pharmaceutical manufacturing, mining operations, and industrial manufacturing plants.

Manufactured in accordance with internationally recognized quality standards, this valve provides dependable backflow protection, excellent sealing performance, low maintenance requirements, and an extended operational life under demanding operating conditions.

Applications of Non-Return Valve (NRV)

• Municipal water supply systems
• Water treatment plants
• Wastewater treatment facilities
• Fire protection systems
• HVAC systems
• Chemical processing plants
• Oil and gas installations
• Power generation plants
• Marine applications
• Food and beverage processing
• Pharmaceutical manufacturing
• Mining operations
• Industrial manufacturing plants

Key Features & Benefits

Feature	Benefit
Automatic non-return operation	Prevents reverse flow without manual intervention
Premium-quality construction	Excellent strength and durability
Multiple material options	Suitable for a wide range of applications
Corrosion-resistant design	Long service life
Multiple connection types	Easy installation and system compatibility
Reliable sealing performance	Minimizes leakage and protects equipment
Low maintenance design	Reduces operating costs
Wide pressure and size range	Suitable for various industrial systems

Technical Data Sheet (TDS)

Parameter	Typical Value
Product Type	Non-Return Valve (NRV)
Valve Type	Automatic Check Valve
Material	Cast Iron, Ductile Iron, Stainless Steel, Brass, or Carbon Steel
Disc Material	Stainless Steel or Compatible Valve Material
Seat Material	EPDM, NBR, PTFE, Metal, or Equivalent
Connection	Threaded, Flanged, Wafer, Socket Weld, or Butt Weld
Operation	Automatic
Pressure Rating	Various Pressure Classes Available
Application	Backflow Prevention

Why Choose NOKS Industrial Systems

• Leading supplier of industrial products in East Africa
• Premium-quality valves, pipes, fittings, flanges, and engineering products
• Wide range of industrial piping solutions
• Competitive pricing for contractors and industries
• Reliable supply across Kenya, Uganda, and Tanzania
• Professional technical support and after-sales service

Contact NOKS Industrial Systems

📍 Location: Industrial Area, Nairobi, Kenya

📞 Phone: 0142998027

📧 Email: noksindustrial2025@gmail.com

🌐 Website: noksindustrial.com