JOHN GUEST 350kPa Watermarked 12mm Brass Pressure Limiting Valve - PSL551

Product Description

The John Guest PSL Pressure Limiting Valve effectively regulates inlet supply line pressure to a preset maximum, preventing downstream over-pressure situations. Its integrated push-fit connection is designed specifically for use with John Guest Speedfit PE-X 12mm tube, ensuring a secure and reliable fit.

• High Pressure and Temperature Tolerance: Suitable for a variety of applications, including caravans and RVs.
• Non-Return Function: Prevents reverse flow for added safety.
• Stainless Steel Valve Seat: Enhances durability and longevity.
• Dezincification Resistant: Complies with Australian Standard AS 2345.
• Potable Water Supply Compliance: Meets Australian Standard AS/NZS 4020:2018.
• Versatile Installation: Suitable for both horizontal and vertical setups.

Specifications:

Temperature Supply Range: Up to 80°C

Maximum Supply Pressure: 2,000kPa

Set Outlet Pressure: 350kPa

Flow Rate: 4 LPM (minimum) to 24 LPM (maximum)

Fluid Medium: Water only

Important Note:

This valve has a piston-based design and requires a vent hole to function correctly. High inlet pressures or water hammer conditions can cause water to discharge through the vent hole, indicating valve malfunction. Ensure the vent hole remains unobstructed and avoid installing the valve in enclosed spaces where venting water could cause damage. Liquid thread sealant is not recommended for this installation.