John Guest Check Valve - 12mm 0.3 psi Crack Pressure

The John Guest push-fit acetal single check valve provides protection from the reversal of flow or back siphonage. The low headloss design, is suitable for potable liquids , food and beverages, intermittent hot water, water treatment and purification applications.

Fast and simple to install, John Guest valves create an instant push-fit connection and leak tight seal without the need for tools, hot works or sealing agents. The unique collet locking design firmly and securely holds the pipe in place without deforming the pipe or restricting flow. John Guest push-fit valves are corrosion resistant and fully removeable, improving system performance and reducing system downtime during maintenance. 

Features:

• Durable acetal copolymer material with nitrile O-rings
• Backflow prevention
• Instant push-fit connection and leak tight seal
• Connect, disconnect and reconnect in seconds without tools
• No scale build up improves performance and equipment lifespan
• Superior flow characteristics
• Suitable for potable water, food and beverages, intermittent hot water, water treatment and purification applications (not suitable for vacuum or air)
• Compatible with LLDPE or soft metal pipe/tubing

Working pressure and temperature: 

• Max. 150 psi at 33° F
• Max. 150 psi at 68° F
• Max. 100 psi at 150° F