Brass Non Return Check Valve – LL5001A/1 | BSP Female Spring Check Valve for Diesel, Oil & Water

The Brass Non Return Check Valve (LL5001A/1) is a high-quality spring-loaded non-return valve designed to allow fluid to flow in one direction only, preventing backflow and helping maintain system pressure. Manufactured from durable brass with BSP female threaded connections, this valve is ideal for use with diesel, heating oil, lubricants, water and other compatible non-corrosive fluids. It is commonly installed on the suction side of pumps to prevent de-priming and ensure reliable system performance.

Suitable for fuel transfer pumps, storage tanks, filtration systems and pipework, the LL5001A/1 provides dependable backflow protection while helping safeguard pumps and associated equipment. Its corrosion-resistant brass construction ensures a long service life in demanding agricultural, commercial and industrial environments.

Key Features

• Part Number: LL5001A/1
• Heavy-duty brass non-return check valve
• Female BSP threaded connections
• Spring-loaded one-way valve
• Prevents backflow and reverse fluid movement
• Helps maintain pump prime
• Corrosion-resistant brass construction
• Suitable for diesel, oil, water and compatible fluids
• Easy to install with standard BSP fittings
• Ideal for agricultural, commercial and industrial applications

Specifications

• Part Number: LL5001A/1
• Valve Type: Spring-Loaded Non-Return (Check Valve)
• Connection: BSP Female x Female
• Material: Brass
• Maximum Working Pressure: Up to 10 Bar*
• Application: One-Way Flow Control

*Pressure rating may vary depending on valve size.

Suitable Applications

Ideal for:

• Diesel transfer pumps
• Fuel storage tanks
• Heating oil systems
• Fuel filtration systems
• Water transfer systems
• Agricultural machinery
• Irrigation systems
• Industrial pipework
• Workshop installations
• Pump suction and delivery lines

Benefits

• Prevents reverse flow and back siphoning
• Helps keep pumps primed for faster operation
• Protects pumps and equipment from backflow damage
• Durable brass body for long service life
• Reliable spring-loaded sealing mechanism
• Simple installation and low maintenance
• Suitable for professional fuel and fluid handling systems

Why Choose the LL5001A/1 Brass Non Return Check Valve?

The LL5001A/1 Brass Non Return Check Valve is a dependable solution for preventing backflow in fuel and fluid transfer systems. Its spring-loaded mechanism ensures smooth one-way flow while protecting pumps, filters and pipework from reverse fluid movement. Manufactured from high-quality brass, it offers reliable performance and excellent corrosion resistance, making it ideal for workshops, farms, industrial facilities and commercial fuel installations.

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