Hattersley 971 PN16 Butterfly Valve - Lever Operated

Introducing the Medenus SL5 Gas Safety Valve, a state-of-the-art spring-loaded device designed to mitigate short-term pressure surges in gas consumption systems. This essential safety valve prevents unacceptably high pressure increases caused by gas leakage, safeguarding downstream system components from excessive pressure levels. The Medenus SL5 Gas Safety Valve features a robust actuator housing and an innovative "control device" functional unit. When closed, gas flows into the actuator housing as indicated by the directional arrow. Here, the inlet pressure exerts force on the underside of the diaphragm, while a spring set with an adjustable screw counteracts this force. If the inlet pressure exceeds the spring force, the diaphragm lifts, allowing the valve to open and release gas into the discharge line. Once the pressure surge has been alleviated, the inlet pressure decreases, causing the valve to automatically close again. **Specifications:** - **Sizes:** ¾" & 1" - **Connections:** Female BSP Inlet x Female BSP Outlet (NPT option available) - **Medium:** Gas - **Set Pressure:** 3 Barg (Maximum) - **Temperature Range:** -15 to +60 degrees Celsius Ensure the safety and efficiency of your gas consumption systems with the reliable Medenus SL5 Gas Safety Valve – the optimal choice for pressure regulation in the UK market.

The Besa 249 Safety Valve is a robust threaded safety valve featuring a full nozzle design, perfect for a variety of applications.

Specifications

Sizes: 1/2", 3/4", 1”
Connections: Screwed BSP (NPT available on request)
Materials: Stainless Steel (1.4418 or 316)
Disk: Metal with Viton (other materials available upon request)
Joints & Seals: Suitable for a range of mediums including water, air, steam, and other neutral liquids, gases, and vapours.
Set Pressure: 0.5 to 500 Barg (varies based on size)
Temperature Range: -196 to +300 °C
Design Compliance: PED, ATEX, GOST, RINA
Notes: Optional extras include a closed lifting device.

Optimised for safety and performance, the Besa 249 Safety Valve is an essential component for ensuring the safe operation of various systems across multiple industries. Ensure compliance and reliability with our expertly engineered safety valves.

**Stainless Steel Expansion Vessel for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels, expertly designed to manage the additional load within your water system as water heats and expands. These high-quality stainless steel expansion vessels play a crucial role in maintaining safe operating levels by preventing pressure build-up in both sealed heating systems and cold water systems. Featuring a replaceable membrane, our vessels effectively prevent corrosion and contamination, ensuring the water remains safe for human consumption. This innovative design allows for quick and easy servicing in situ, eliminating the need to remove the vessel entirely. **Key Features and Benefits:** - **Corrosion-Resistant Design:** The stainless steel bolted flange helps to prevent corrosion. - **Enhanced Flow:** Extra wide membrane opening substantially reduces noise caused by restricted flow. - **Internal Protection:** The internal membrane prevents any contact between water and the steel shell, effectively stopping internal corrosion. - **Extensive Range:** Available in capacities from 2 to 5000 litres, catering to a variety of applications. - **Serviceable Design:** All models come equipped with a replaceable membrane for straightforward servicing without removal. - **User-Friendly:** Pre-charge valve for easy topping up of air pressure. - **Versatile Compatibility:** Suitable for hot and cold water systems only. **Specifications:** - **Capacity:** 4000 Litre - **Colour:** Red - **Pre-Set Pressure (Bar):** 4 - **Max Pressure (Bar):** 10.0 - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 3200mm - **Diameter:** 1450mm - **Water Connection:** DN80 **Product Code:** XVES050210 **Materials:** - **Shell:** Epoxy Coated - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS approved for models up to 1000 litres - CE marked in accordance with Directive PED 97/23/CE - TÜV Certified - Materials for 1000 - 5000 litre models comply with BS 6920 Choose the Reliance Valves Aquasystem Potable Water Expansion Vessel for a reliable and efficient solution to your water system needs!