AURA EXB Back Pressure Regulator

**Stainless Steel Expansion Vessel for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels, expertly crafted for managing excess pressure in both heating and cold water systems. These robust stainless steel expansion vessels are specifically designed to accommodate the increased volume of water as it heats, ensuring safe operation and regulatory compliance in your plumbing systems. By effectively preventing pressure build-up, our expansion vessels enhance the safety and longevity of your sealed heating and cold water systems. Equipped with a replaceable membrane, these vessels serve to keep the water free from corrosion and contamination, guaranteeing that the water remains safe for human consumption. The replaceable membrane feature also facilitates quick and convenient servicing, allowing maintenance to be carried out on-site without the need for removal. **Features and Benefits:** - **Corrosion-Resistant Flange:** The stainless steel bolted flange inhibits rusting and ensures durability. - **Noise Reduction:** Extra wide membrane opening minimises noise caused by restricted water flow. - **Internal Protection:** The internal membrane prevents contact between water and the steel shell, eliminating internal corrosion risks. - **Versatile Capacity Range:** Available in sizes from 2 to 5000 litres, catering to a variety of applications. - **Serviceable Design:** Each vessel includes a replaceable membrane, allowing for easy servicing without removal. - **Pre-Charged Valve:** Allows for convenient topping up of air pressure. - **Compatibility:** Suitable for both hot and cold water use. **Specifications:** - **Capacity:** 50 Litres - **Colour:** Blue - **Pre-Set Pressure:** 3 Bar - **Maximum Pressure:** 10.0 Bar - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 656mm - **Diameter:** 365mm - **Water Connection:** 3/4" MBSP - **Product Code:** XVES050080 **Materials:** - **Shell:** Epoxy Coated Steel - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS approved for capacities up to 1000 litres - CE marked in accordance with Directive PED 97/23/CE - TÜV Certified - Models from 1000 to 5000 litres comply with BS 6920 Upgrade your water management systems with our reliable stainless steel expansion vessels to ensure efficiency and safety in your potable water applications.

## Features & Benefits • Pressure Reducing Valves (PRVs) provide precise control of pressure from boosted hot and cold water supplies, tailored to meet site specifications. • Supplied with male union tailpieces for straightforward installation, significantly reducing on-site time. • Equipped with an integral strainer that prevents debris from compromising valve performance. • We recommend installing isolation valves both upstream and downstream of the valve to facilitate easy strainer cleaning. • Performance conforms to the BS EN 1567 standard, ensuring high-quality assurance. • Convenient access for measuring outlet pressure. • A separate pressure gauge can be ordered to monitor outlet pressure for each installed valve. • WRAS Approved for drinking water applications, rated up to 80°C. ## Specification • **Medium:** Water Only • **Connections:** Male union tapered tailpieces compliant with BS EN 10226-1 • **Outlet Pressure Range:** 1-6 bar • **Pre-set Outlet Pressure:** 3 bar • **Design Standard:** BS EN 1567 • **Approvals:** WRAS / PED 2014/68/EU • **Mesh Size:** 0.5mm across all sizes ## Pressure/Temperature Rating For optimised performance and reliability in your water supply systems, choose our WRAS-approved Pressure Reducing Valves, designed to enhance water management while ensuring compliance with UK standards.

### Product Specifications **Sizes Available:** - 1/2" (DN15) - 3/4" (DN20) - 1" (DN25) - 1 1/2" (DN40) - 2" (DN50) **Connections:** - Flanged PN40 Inlet - Flanged PN40 Outlet **Materials:** - Body & Bonnet: Stainless Steel - Disc: FKM - Seals: FKM **Medium Compatibility:** This product is suitable for aggressive water and other aggressive liquids, as well as compressed air, nitrogen, and gases. Please note that it is not suitable for steam. **Pressure Ratings:** - Inlet Pressure (Max): 40 Barg - Outlet Pressure Range: 0.5 to 9 Barg **Flow Coefficient (Kvs) Range:** 2.9 to 13 **Temperature Limit:** Maximum operating temperature: 190°C **Certifications:** - Compliant with PED 97/23/CE category I **Additional Information:** For optimal sizing, please use our sizing calculator available in the TECHNICAL INFO section located in the menu bar above. --- Optimise your search for high-quality valves that meet stringent standards and can handle demanding conditions. Our durable stainless steel valves offer reliability and efficiency for various applications.