Reliance RWC 104 Series Pressure Relief Valve 1" x 1.1/4" F x F 6 Bar - PREL104002

### 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.

**PREL106003 Potable Water Pressure Relief Valve** The PREL106003 Potable Water Pressure Relief Valve is designed to safeguard unvented systems from over-pressurisation. In the event of excessive cold water pressure, this valve will discharge water from the system at a predetermined pressure, ensuring the safe operation of your unvented cylinder. Reliance Valves 102 Series Potable Water Pressure Relief Valves are pre-set and securely locked to a specific pressure. When the system pressure exceeds this limit, the valve lifts off its seat, allowing water to discharge safely to waste. This valve acts as the primary safety device within your unvented system. Manufactured with a robust single-piece cartridge, these pressure relief valves are available in various pressure settings and connection sizes, facilitating straightforward installation. **Features and Benefits:** - **Quick and Easy Cartridge Removal:** The single-piece cartridge can be rapidly removed for cleaning or replacement. - **Improved Scale Resistance:** The advanced diaphragm design enhances resistance to scale build-up, ensuring long-lasting performance. - **Over-Pressurisation Protection:** Safeguards your system against potential over-pressurisation issues. - **Flexible Installation Options:** Multiple connection sizes allow for versatile installation configurations. - **Wide Relief Pressure Range:** Set at 10 bar, suitable for various applications. - **Cold Water Use Only:** Specifically designed for cold water systems. **Specifications:** - **Size:** 1/2" x 1/2" - **Connections:** BSP Male Inlet x BSP Female Outlet - **Materials:** Hot pressed DZR Brass - **Medium:** Water - **Set Pressure:** 10 Barg - **Temperature Rating:** +140°C - **Product Code:** PREL106003 - **Certification:** WRAS approved Ensure the safety and reliability of your unvented water system with the PREL106003 Potable Water Pressure Relief Valve – your first line of defence against over-pressurisation. Perfect for installation in residential and commercial settings alike.

### Features & Benefits - **One-Way Flow Control**: Our check valves ensure that fluid flows in a single direction, closing automatically if the flow reverses, enhancing system reliability. - **Versatile Application**: Perfectly suited for use with water and a range of other liquids. - **Durable Design**: Featuring a bolted cover for added security and longevity. - **Swing Type Mechanism**: Incorporates a swing check valve with a premium bronze seat, ensuring effective operation. - **Flexible Installation**: Designed for mounting in both horizontal and vertical pipelines, making it adaptable to various plumbing systems. - **Corrosion Protection**: The fusion-bonded epoxy coating is suitable for a C3 environment, providing robust protection against corrosion. ### Specification - **Robust Construction**: This swing check valve is crafted with a cast iron body and bonnet, conforming to BS EN 1561 GJL-250. The cast iron disk meets the same standard, with bronze disk facing and bronze seat compliant with BS EN 1982 CC491K. - **Full Bore Design**: The valve features a full bore design, manufactured in accordance with BS EN 16767 and is rated PN16, with a temperature range of -10°C to 220°C. - **Reliable Gasket Material**: The gasket is graphite-based, ensuring a secure and leak-proof seal. - **Standardised Flanges**: Supplied with drilled flanges according to BS EN 1092-2 PN16 for easy installation. - **Corrosion-resistant Coating**: The valve is coated with a C3 corrosion level epoxy and complies with the Pressure Equipment Directive 2014/68/EU. ### Pressure/Temperature Rating - **Standard Compliance**: The valve adheres to BS EN 1092-2 PN16 standards. - **Pressure Ratings**: 16 Barg from -10°C to 120°C, and 11.8 Barg at 220°C. Optimise your piping systems with our high-quality check valves designed for efficiency, durability, and safety.