Auto Shutoff Pressure Valve

This auto shutoff pressure valve is the core mechanical component in Osmotics auto shutoff kits, providing reliable, no-electricity-needed control to stop your reverse osmosis (RO/RODI) system when a storage tank or reservoir reaches full capacity. When back pressure builds (typically to ~65% of incoming line pressure, e.g., as a float valve closes or tank fills), the valve automatically blocks feed water input and halts waste water production—preventing overflow, eliminating unnecessary runtime, and saving water.

Ideal as a spare or replacement part for existing auto shutoff setups, or for custom RO configurations where you need standalone pressure-based shutoff. Pair it with a float valve (e.g., from our Auto Shutoff Kit) for complete reservoir auto-fill automation in aquariums, window cleaning, car detailing, or bulk pure water storage.

Key Benefits

• Automatic production stop — Shuts off feed water and waste line when downstream pressure rises—no more continuous waste once the tank is full.
• Water & cost savings — Reduces wasted water and extends RO membrane/pump life by avoiding unnecessary operation.
• Mechanical reliability — No electricity required; simple diaphragm/piston design for durable, low-maintenance performance.
• Easy integration — Standard 1/4" ports fit most domestic RO tubing; quick DIY install with included instructions.
• Versatile spare — Perfect replacement for worn valves in Osmotics kits, or for upgrading basic RO systems.

What's Included

• 1 × Auto Shutoff Pressure Valve (with 1/4" ports for feed in/out, waste in/out)

Specifications

• Ports: 1/4" quick-connect compatible (JG-style)
• Shutoff Trigger: Back pressure ~65% of incoming line pressure
• Material: Durable plastic/composite construction
• Manufacturer: Osmotics
• Weight: ~0.1 kg (lightweight component)
• SKU: OS-ASPV

Compatibility & Important Notes

• Works standalone in gravity/low-pressure RO setups or with float valve triggers.
• For systems with a booster pump: Pair with our High Pressure Switch to cut pump power when shutoff occurs (prevents dry-running or overpressure).
• Not a complete kit—requires a downstream trigger (e.g., float valve) to build back pressure for activation.
• Typical use: Inline on product water line after RO membrane, with waste routed through valve.

Recommended Maintenance

• Inspect/clean annually for scale or debris (especially in hard water areas).
• Replace every 3–5 years or if valve sticks/fails to shut off properly.

This affordable, essential component keeps your RO system efficient and automated—trusted in Osmotics kits for UK homes, reef aquariums, professional window cleaning, and more. In stock with fast UK delivery (next-day options available). For a full setup, add our Float Valve or complete Auto Shutoff Kit.