Reliance RWC TPR22 Pressure & Temperature Relief Valve 3/4" x 22mm 10 Bar - PTEM575210

### Stainless Steel Expansion Vessel for Heating Applications Discover the Reliance Valves Aquasystem Heating Expansion Vessels, expertly crafted from high-quality stainless steel to ensure optimal performance in heating applications. Available in capacities ranging from 2 litres to an impressive 5000 litres, these vessels are designed to handle maximum pressure levels between 8.0 and 10.0 bar. Featuring replaceable membranes, the Aquasystem range is designed for in-situ servicing, ensuring that water does not come into contact with the steel shell. This critical design element prevents internal corrosion and significantly extends the lifespan of the expansion vessel. #### Key Features and Benefits: - **Corrosion-Resistant Design**: The bolted flange made from stainless steel provides outstanding resistance to corrosion. - **Noise Reduction**: The extra-wide membrane opening minimises noise caused by restricted flow, promoting a quieter environment. - **Durable Internal Membrane**: The internal membrane effectively prevents water contact with the steel shell, safeguarding against internal corrosion. - **Comprehensive Capacity Range**: Available in sizes from 2 to 5000 litres, making it suitable for a wide array of applications. - **Easy Maintenance**: All vessels are supplied with a replaceable membrane, allowing for service without the need to remove the vessel. - **Convenient Pre-Charge Valve**: Easily top up air pressure with the included pre-charge valve. - **Heating Applications Only**: Specifically designed to cater to heating system requirements. #### Specifications - **Capacity**: 250 Litres - **Colour**: Red - **Pre-Set Pressure**: 1.5 Bar - **Maximum Pressure**: 8.0 bar for up to 500 litres, 10.0 bar for 750 litres and above - **Minimum Temperature**: -10°C - **Maximum Temperature**: 99°C - **Height**: 1051mm - **Diameter**: 650mm - **Water Connection**: 1" MBSP - **Product Code**: XVES100130 **Materials**: - **Shell**: Epoxy Coated Steel - **Membrane**: EPDM - **Bolted Flange**: Galvanised Steel **Standards and Approvals**: - CE Marked according to Directive PED 97/23/EC - TÜV Certified Upgrade your heating system with Reliance Valves Aquasystem Expansion Vessels, combining reliability, efficiency, and long-lasting performance.

**Altecnic / Caleffi 313 Relief Valve with Gauge - Model 313430** The Altecnic / Caleffi 313 Relief Valve with Gauge (Model 313430) is an essential component for domestic hot water systems, ensuring the safety of your hot water cylinder. This valve also plays a crucial role in heating systems by protecting the boiler and other integral components. Designed to operate at a specified set pressure, this valve opens to the atmosphere when pressure thresholds are exceeded, effectively preventing dangerous pressure levels that could affect the boiler, hot water storage cylinder, and the safety of nearby personnel. Each unit is supplied with an integrated pressure gauge for easy monitoring. ### Product Specifications - **Size:** 1/2" x 1/2" - **Connections:** BSP Female Inlet x BSP Female Outlet - **Materials:** Brass - **Compatible Mediums:** Air and Water - **Set Pressure:** 3 Barg - **Discharge Flow Rate:** 142.1 kg/hr - **Max Boiler Rating:** 82.5 kW - **Temperature Range:** +5 to +110°C - **Product Code:** 313430 - **Certification:** WRAS approved, CE marked - **Included:** Pressure gauge Ensure the safety and efficiency of your heating system with the Altecnic / Caleffi 313 Relief Valve. Ideal for both domestic hot water and heating applications, this valve is a vital addition to any service or installation.

Introducing the FSKRDRA Reverse Acting Rupture Discs, a cutting-edge solution utilising the latest technology in the industry. Designed with a unique camber, the convex disc maintains its shape under operating pressure, only altering when reverse pressure is reached. This innovative device operates with pressure ratios of up to 95% between operating and rupture pressure, demonstrating exceptional reliability through thousands of cycles. Upon reversion, the disc ruptures in just a few thousandths of a second along a scored line, ensuring complete opening without any fragmentation. These rupture discs exhibit lower sensitivity to temperature variations compared to traditional discs, making them ideal for applications with significant temperature fluctuations. Their advanced design allows for use solely in liquid applications and in cycling or pulsating conditions, all while maintaining safety margins. Moreover, they are particularly effective for isolating safety valves. With a wide selection of materials and thicknesses, FSKRDRA discs offer excellent resistance to corrosion. For enhanced protection, a PTFE lining can be applied to the process side of the disc. Notably, vacuum support is unnecessary, and these discs are capable of enduring high counter-pressures. ### Technical Specifications: - **Sizes:** From 1" (DN25) to 36" (DN900) - **Materials:** Available in Stainless Steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, and Titanium - **Rupture Pressure:** Ranges from 0.41 bar g (6 psi g) to 137 bar g (2000 psi g), depending on the material and diameter - **Krl:** 0.48 - **Tolerance:** +/- 5% to +/- 20% - **Temperature Range:** From -196 °C to 480 °C - **Operating Margin:** Typically 90%, with the potential to reach 95% subject to service conditions - **Fragmentation:** None (will not disintegrate upon bursting) - **Use Under Valve:** Yes - **Corrosion Resistance:** Excellent - **Linings:** Available - **Container Types:** FSHR/A, FSHR/P, FSHR/F, FSHTC - **Rupture Sensor Options:** Electrical, Magnetic, Inductive, Optical - **Certifications:** ASME Certification (UD Stamp), PED Certification (CE Stamp), ATEX EX II 2 GD Certification available For further information and to request a rupture disc, please download our Rupture Disc Request Form. Once completed, kindly send it to sales@flowstar.co.uk. Improve your operational safety and efficiency with the FSKRDRA Reverse Acting Rupture Discs today!