Fire Valves

The Reliance Water Controls (RWC) TPR15 Pressure & Temperature Relief Valves are compact, yet highly effective, valves designed specifically to protect your unvented hot water system from the dangers of over-pressurisation. This critical safety feature is essential, as over-pressurisation can occur if the input temperature or pressure controls fail. The valves are strategically designed to be installed at the top of a hot water cylinder, where the highest temperatures are typically found. Should the temperature exceed 95°C, the wax mixture in the temperature probe's element will expand, lifting the valve from its seat and allowing excess water to be discharged safely. Additionally, if water pressure increases without a corresponding temperature rise, the valve remains closed until the pre-set pressure of the relief mechanism is reached, at which point it opens to relieve the excess pressure. Some models are equipped with a PTFE coating on the MBSP inlet thread, facilitating a quicker and more efficient installation process.

Features and Benefits:

• Protects against temperatures exceeding 95°C
• Prevents over-pressurisation in hot water systems
• Innovative twist-top cartridge design for straightforward servicing
• Variety of pressure settings and probe lengths available
• Some models feature a PTFE coating for easy installation

Specifications:

• Size: 1/2" x 15mm
• Connections: BSP Male Inlet x Compression Outlet
• Materials: Brass
• Medium: Hot water only
• Set Pressure (Set & Locked): 7 Barg
• Temperature Relief: +90 to 95 degrees Celsius
• Discharge Capacity: 10kW
• Probe Length: 95mm
• Product Code: PTEM550852
• Notes: WRAS approved

Ensure the safety and reliability of your hot water system with the RWC TPR15 Pressure & Temperature Relief Valves, an essential component for maintaining optimal performance and peace of mind.

Our turbine flowmeters are specifically engineered for hydraulic circuit testing, capable of withstanding pressures of up to 400 bar. These robust devices are essential for monitoring flow, temperature, and pressure with precision and reliability.

Specifications

• Sizes: 2 inch
• End Connections: IS061/62 Code 61 (SAE 3000) or IS061/62 Code 62 (SAE 6000)
• Body Connections: 5/8”-18 UNF port for flow sensor, and 2 x 1/4” BSP ports for pressure and temperature sensors
• Pressure Ratings: Maximum of 210 Barg or 400 Barg
• Flow Range: 5 to 750 litres per minute
• Materials: Stainless steel rotor and body (please refer to the datasheet)
• Accuracy: ±2.0% linearity (0.2% version available) / ±0.1% repeatability
• Temperature Range: Standard -30°C to 110°C / High temperature -30°C to 232°C

Note: Each unit comes with individual calibration certificates for your peace of mind.

Optimise your hydraulic testing with our high-performance turbine flowmeters, designed for ultimate reliability and accuracy.

**Stainless Steel Expansion Vessel for Potable Water Applications** The Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels are expertly designed to accommodate the increased load within a water system as water heats and expands. These expansion vessels play a crucial role in maintaining safe operating levels by effectively preventing pressure build-up in both sealed heating systems and cold water systems. Featuring a replaceable membrane, these vessels prevent water from coming into contact with the steel shell, thereby avoiding corrosion and contamination, ensuring that the water remains safe for human consumption. The replaceable membrane also allows for easy servicing without the need to remove the vessel, enabling quick and efficient in-situ maintenance. **Features and Benefits:** - **Corrosion-Resistant Design:** The stainless steel bolted flange prevents corrosion, ensuring durability and longevity. - **Quiet Operation:** The extra-wide membrane opening helps reduce noise resulting from restricted flow. - **Protective Internal Membrane:** Prevents any direct contact between water and the steel shell to stop internal corrosion. - **Versatile Capacity Range:** Available in sizes from 2 to 5000 litres, suitable for a variety of applications. - **Easy Servicing:** All models come equipped with a replaceable membrane, allowing for servicing without vessel removal. - **Pre-Charge Valve:** Convenient for topping up air pressure. - **Hot and Cold Water Compatibility:** Designed specifically for hot and cold water use only. **Specifications:** - **Capacity:** 24 Litres - **Colour:** White - **Pre-Set Pressure (Bar):** 3 - **Max Pressure (Bar):** 10.0 - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 489mm - **Diameter:** 280mm - **Water Connection:** 3/4" MBSP - **Miscellaneous:** Comes complete with wall bracket and accessories - **Product Code:** XVES050065 **Materials:** - **Shell:** Epoxy Coated Steel - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS approved for tanks 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 Enhance your potable water system with the Reliance Valves Aquasystem Expansion Vessel, designed for efficiency, safety, and ease of maintenance.