Resideo Shut-Off Three-Way Linear Valve (XI & XE)

The PREL104012 High Capacity Potable Water Pressure Relief Valve discharges water off the system at a set pressure in the event of cold water over pressurisation to an unvented cylinder (high flow for larger capacity systems) Reliance Valves 104 Series High Capacity Potable Water Pressure Relief Valve is a high capacity range of pressure relief valves designed to protect an unvented system from over pressurisation. The valves are pre-set and locked to a particular pressure, and if the system exceeds this pressure the valve will lift off the seat and water will discharge from the valve to the waste. The outlet connection is one size larger than the inlet to guarantee the valve will be able to cope with a high capacity discharge. This is the first safety device in line within an unvented system. The valves are available in different pressures ranging from 3.5 - 8 bar, as well as multiple connection sizes to allow for flexible installation. 

Features and benefits: 

- High flow design for larger capacity systems 

- Rapid removal of single piece cartridge for cleaning or replacement 

- Diaphragm design gives improved resistance against scale 

- Protects against over pressurisation 

- Multiple connections for flexible installation 

- Set relief pressure range from 3.5-8.0 bar 

- Suitable for cold water use only 

Specification

Size: 1.1/2" x 2"Connections: BSP Female Inlet x BSP Female OutletMaterials: Hot pressed DZR BrassMedium: Cold waterSet Pressure: 6 BargTemperature: +140 degCProduct Code: PREL104012

### Product Specification **Sizes Available:** 3/4", 1" **Connections:** Screwed BSPP or NPT **Materials:** High-Quality Stainless Steel (21.2) **Disk Options:** Metal, Nylon, PEEK, or Vespel (dependent on pressure requirements) **Joints & Seals:** FPM, PTFE **Suitable Mediums:** Steam, Gases, and Liquids **Set Pressure Range:** 100 to 1000 Barg (varies with size) **Temperature Range:** -60 to +350°C (for valves with a metal disk) **Design Notes:** Please note that the specified temperature range applies to valves equipped with a metal disk. This product is ideal for a variety of industrial applications, ensuring reliability and performance in managing steam, gases, and liquid mediums. For optimal performance and safety, please consider the appropriate size and materials based on your specific operational requirements.

**Product Specifications** - **Sizes Available**: 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1 1/4" (DN32), 1 1/2" (DN40), and 2" (DN50) - **Connections**: Female BSP Inlet and Female BSP Outlet - **Materials**: - **Body**: Gunmetal - **Bonnet**: Brass (for sizes DN15 to DN32) / Cast Iron (for sizes DN40 to DN50) - **Joints & Seals**: Diaphragm: NBR; Seals: NBR - **Medium Compatibility**: Suitable for gases and liquids, including water (potable), neutral non-viscous fluids, compressed air, nitrogen, and non-combustible gases. Please note, this product is not suitable for steam. - **Inlet Pressure (Max)**: - 40 Barg (for sizes 1/2" to 1 1/4") - 25 Barg (for sizes 1 1/2" and 2") - **Outlet Pressure Range**: 0.5 to 9 Barg - **Temperature Range**: -20°C to +100°C - **Certifications**: Complies with PED 97/23/CE, Category I **Additional Notes**: - This product features built-in gauge ports and an integral strainer. - The minimum pressure drop between the inlet and outlet should be 1 Barg. - For assistance with sizing, please use our sizing calculator available in the **TECHNICAL INFO** section of the menu above. Optimise your operations with our reliable and durable product, designed to meet a variety of needs for both gaseous and liquid mediums. Whether for industrial applications or domestic use, our product maintains high standards of safety and efficiency.