NABIC 542 Safety Relief Valve

**Sprung Disk Wafer Check Valve: Non-Return Valve for Efficient Fluid Control** The Sprung Disk Wafer Check Valve, commonly referred to as a spring-loaded wafer check valve, is an essential non-return valve designed to facilitate fluid flow in a single direction while effectively preventing backflow in the opposite direction. This specialised valve is crucial for maintaining system efficiency and safeguarding against reverse flow. **Specifications** - **Sizes Available**: DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100 - **Connections**: Wafer - **Materials**: - **Body & Plates**: Available in Bronze, Stainless Steel, and Hastelloy - **Seat Options**: Metal, Viton, or PTFE - **Working Pressure**: Up to 100 Barg (varies by model) - **Temperature Range**: Up to 593°C (subject to material specifications) - **Design Standards**: Fully compliant with BS7438 and EN 558.2 face-to-face dimensions - **Notes**: Proudly manufactured in the UK This premium quality Sprung Disk Wafer Check Valve is engineered to deliver reliable performance across various applications, making it an ideal choice for professionals seeking durability and efficiency in fluid management.

This replacement check valve is designed specifically for the Resideo Braukmann BA295S Back Flow Preventer (RPZ Valve). Ensure optimal performance and reliability with this high-quality component.

For more information, explore our insightful article on Backflow Prevention in the Technical section of our website.

Features & Benefits

• Single unit Y-Pattern globe valves with an integrated orifice plate, designed to create a fixed orifice flow measurement unit, providing both regulation and isolation capabilities. • The Double Regulating feature enables the valve to be used for isolation and allows it to return to its pre-set position, ensuring the desired flow rate is maintained. • Flow measurement accuracy of ±5% is guaranteed at all open positions of the valve in line with BS 7350: 1990 standards. • Ideal for injection or other circuits that require a double regulating valve for effective system balancing. • Finished with an external spray epoxy coating for enhanced durability.

Specification

• Y-Pattern globe valves designed for flow regulation and isolation, equipped with Figure 631 test points for effective flow measurement. • These valves meet the specifications of BS 7350, with flanged ends conforming to BS EN 1092-2 (formerly BS 4504).

Pressure/Temperature Rating

• PN16 / -10 to 120°C • Ratings comply with BS EN 1092-2 PN16 (previously BS 4504).