Quick Closing Valve

Auld Valves Ltd has ceased trading. Please contact us to explore alternative options available in our product range. 

The Auld Vigilant Safety Valve features a blowdown characteristic ranging from 5% to 10%. It boasts a fully enclosed flow design with an external spring that remains unaffected by the process fluid or temperature. A soft face version is also available. This valve complies with normal lift designs according to BS759 and BS1500 standards. It achieves rated flow within 10% overpressure, ensuring optimal performance. With a robust construction and fully guided design, it minimises deformation and leakage, incorporating stainless steel trim for enhanced durability. Assembled from standardised components, this valve allows for easy maintenance. The springs conform to BS1726 class A specifications, providing a clean opening, stable performance, and reliable positive closing. 

### Features & Benefits - Constructed from robust ductile iron to ensure long-lasting service life. - WRAS approved for use with potable water, suitable for temperatures ranging from -10°C to 80°C. - Features an integrated notch plate for a more compact design. - The anti-blow out stem design guarantees safe and secure operation. - Fully bonded epoxy paint system provides exceptional corrosion resistance. - Ideal for applications requiring Level 3 C3 (Medium) corrosion protection. - Maintenance-free valve design minimises downtime and enhances operational efficiency. ### Specifications - Conforms to BS EN 593 standards. - Face-to-face dimensions comply with BS EN 558. - Valves measuring DN250 and larger come standard with a fully enclosed gear operator. - Suitable for use in flow regulation applications. - Applicable for gas installations; the Fig. 970W and 970WG are compatible with Group 1 and Group 2 gases, as well as Group 1 and Group 2 liquids, as outlined by the Pressure Equipment Directive 2014/68/EU. ### Pressure/Temperature Rating - PN16 rating from -10 to 80°C (WRAS approved). - PN16 rating from -10 to 100°C (Non-WRAS approved). --- This description has been optimised for search engines while maintaining clarity and detail about the product's features, benefits, specifications, and ratings.

### Stainless Steel Expansion Vessel for Potable Water Applications Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels, expertly crafted to accommodate the additional load within water systems as water heats and expands. These robust expansion vessels play a crucial role in maintaining safe operating levels, effectively preventing pressure build-up in both sealed heating systems and cold water systems. Featuring a replaceable membrane, our expansion vessels are designed to shield the water from corroding or contaminating the vessel, ensuring the water remains safe for human consumption. The replaceable nature of the membrane facilitates quick and easy servicing on-site, eliminating the need for complete removal of the vessel for maintenance. #### Features and Benefits: - **Corrosion-Resistant Design**: Stainless steel bolted flange prevents corrosion. - **Noise Reduction**: Extra-wide membrane opening minimises noise caused by restricted flow. - **Internal Protection**: The membrane ensures no water contacts the steel shell, halting internal corrosion. - **Versatile Range**: Available in capacities from 2 to 5000 litres, suitable for various applications. - **Easy Servicing**: All models come with a replaceable membrane for straightforward on-site servicing. - **Convenient Pre-Charge Valve**: Allows for easy topping up of air pressure. - **Hot and Cold Water Compatible**: Specifically designed for both hot and cold water systems. #### Specifications: - **Capacity**: 80 Litres - **Colour**: Blue - **Pre-Set Pressure**: 3.5 Bar - **Maximum Pressure**: 10.0 Bar - **Minimum Temperature**: -10°C - **Maximum Temperature**: 99°C - **Height**: 810mm - **Diameter**: 410mm - **Water Connection**: 1" MBSP - **Product Code**: XVES050100 #### Materials: - **Shell**: Epoxy Coated - **Membrane**: EPDM - **Bolted Flange**: Stainless Steel #### Standards and Approvals: - **WRAS Approved**: Up to 1000 litres - **CE Marked**: In accordance with Directive PED 97/23/CE - **TUV Certified** - **Materials Compliance**: 1000 - 5000 litre models comply with BS 6920 Enhance your potable water system with our stainless steel expansion vessels, ensuring efficiency, safety, and longevity.