¾" Brass Spring Check Valve — Non-Return Valve

Instant Backflow Protection — Spring-Loaded, Brass-Built, Ready to Install

The ¾" Brass Spring Check Valve is a premium-grade non-return valve that uses a spring-loaded poppet mechanism to prevent backflow instantly — even at low flow rates. Unlike swing check valves, the internal spring ensures the valve closes immediately when forward pressure drops, making it ideal for pump protection and vertical pipe installations. This pack includes 2 valves and PTFE thread seal tape for a complete, ready-to-install solution.

Key Features

• Size: ¾ inch — embossed on body with flow direction arrow for correct installation
• Body Material: Solid brass — heavy-duty, corrosion-resistant, safe for potable water
• Connection Type: Female BSP thread on both inlet and outlet ends
• Mechanism: Spring-loaded poppet — opens with forward pressure, closes instantly when flow stops or reverses
• Pack Contents: 2 x ¾" brass spring check valves + PTFE thread seal tape
• Pressure Rating: Suitable for standard domestic and commercial water supply pressures

Spring vs Swing — Why Spring Wins

A spring-loaded check valve closes faster and more reliably than a swing disc valve, especially in low-flow or vertical pipe applications. The spring ensures positive shut-off regardless of pipe orientation — horizontal, vertical, or angled — making it the preferred choice for pump discharge lines and borehole installations.

Common Applications

• Pump discharge lines — prevents water hammer and pump damage
• Borehole and submersible pump installations
• Domestic and commercial water supply systems
• Boiler feed and hot water heating systems
• Irrigation and garden water supply lines
• Vertical pipe runs where swing valves are unreliable

Why Choose This Valve?

• ✅ Solid brass body — built for high-pressure, long-service applications
• ✅ Spring-loaded mechanism — faster, more reliable closure than swing check valves
• ✅ Works in any pipe orientation — horizontal, vertical, or angled
• ✅ Pack of 2 with PTFE tape — complete value, ready to install
• ✅ Female BSP thread both ends — fits standard pipework and fittings