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The Beaver Small-Bore Inline Spring Check Valve is a compact valve that is highly effective in preventing backflow. The tension of the spring inside the valve keeps the disc closed against the seat. Fluid pressure from the inlet port overcomes the spring and allows fluid to flow across the hollow body. Pressure from the outlet side won’t open the valve.

The spring check valve provides a greater degree of protection from reverse flow as its disc doesn’t rely on gravity to close unlike a swing check valve. This also means it can be installed inline in any direction.

This Beaver valve has a stainless steel body with great overall wear and corrosion resistance, making it suitable for applications involving a wide temperature range and pressures up to 54 bar.

Use this spring check valve to prevent any contamination or equipment damage caused by reverse flow.

Technical specifications





Size range

DN8–50 (¼–2”)

Pressure range

0–54 bar (0–1000 psi)

End connections

Screwed to AS 1722 Part 1, BSP, FxF

Temperature range

-20°C to +180°C

Material specifications

Cap, disc, body





ASTME A276 304

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