Reliance RWC 104 Series Pressure Relief Valve 1.1/4" x 1.1/2" F x F 8 Bar - PREL104013

**PREL104013 High Capacity Potable Water Pressure Relief Valve** The PREL104013 High Capacity Potable Water Pressure Relief Valve is engineered to release water from the system at a predetermined pressure, effectively managing cold water over-pressurisation in unvented cylinders. Designed for high flow rates, this valve is particularly suitable for larger capacity systems. The Reliance Valves 104 Series provides reliable protection for unvented systems against over-pressurisation. Each valve is pre-set and securely locked to a specific pressure—if the system pressure surpasses this limit, the valve will lift from the seat, allowing water to discharge safely to waste. The valve's outlet connection is sized one inch larger than the inlet, ensuring optimal flow capacity during high discharge demands. As the primary safety device in an unvented system, these valves offer peace of mind and robust performance. Available in various pressure settings from 3.5 to 8 bar, and with multiple connection sizes for ease of installation, the PREL104013 is a versatile solution for any plumbing system. **Features and Benefits:** - **High Flow Design**: Ideal for larger capacity systems. - **Easy Maintenance**: Quick removal of the single-piece cartridge for cleaning or replacement. - **Durable Diaphragm**: Enhanced resistance against scale build-up ensures longevity. - **Over-Pressure Protection**: Guards against potentially damaging over-pressurisation. - **Flexible Installation**: Multiple connection options cater to diverse installation requirements. - **Adjustable Pressure Range**: Set relief pressure from 3.5 to 8.0 bar. - **Cold Water Usage**: Specifically designed for use with cold water. **Specifications:** - **Size**: 1.1/4" x 1.1/2" - **Connections**: BSP Female Inlet x BSP Female Outlet - **Materials**: Hot pressed DZR Brass - **Medium**: Cold Water - **Set Pressure**: 8 Barg - **Temperature Rating**: +140 degrees Celsius - **Product Code**: PREL104013 Ensure your unvented system is protected with the reliable performance of the PREL104013 High Capacity Potable Water Pressure Relief Valve. Perfect for both residential and commercial applications, this valve is essential for maintaining a safe and efficient plumbing system.

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Other Products and Services from Flowstar (UK) Ltd

Reliance RWC 104 Series Pressure Relief Valve 3/4" x 1" F x F 6 Bar - PREL104010

**PREL104010 High Capacity Potable Water Pressure Relief Valve** The PREL104010 High Capacity Potable Water Pressure Relief Valve efficiently discharges water from the system at a predetermined pressure, safeguarding against the over pressurisation of cold water in unvented cylinders. Specifically designed for larger capacity systems, the Reliance Valves 104 Series provides robust protection for unvented systems, ensuring they remain operational and safe. These high-capacity pressure relief valves are pre-set and locked to a specific pressure. When system pressure exceeds this threshold, the valve activates by lifting off its seat, allowing water to discharge safely to waste. The outlet connection is sized larger than the inlet, guaranteeing that the valve can handle high-capacity discharges without issue. As a critical safety component in unvented systems, our valves come in various pressure settings from 3.5 to 8 bar and feature multiple connection sizes to accommodate flexible installation options. **Features and Benefits:** - **High Flow Design:** Tailored for larger capacity systems to ensure efficient operation. - **Easy Maintenance:** Rapid removal of the single-piece cartridge simplifies cleaning or replacement. - **Enhanced Durability:** The diaphragm design improves resistance to scale build-up, promoting longevity. - **Safety Assurance:** Provides reliable protection against over pressurisation in your system. - **Versatile Installation:** Multiple connection sizes ensure flexibility during installation. - **Variable Set Pressure:** Relief pressure settings range from 3.5 to 8.0 bar for varied system requirements. - **Cold Water Use:** Specifically designed for cold water applications only. **Specifications:** - **Size:** 3/4" x 1" - **Connections:** BSP Female Inlet x BSP Female Outlet - **Materials:** Hot Pressed DZR Brass - **Medium:** Cold Water - **Set Pressure:** 6 Barg - **Temperature Rating:** +140°C - **Product Code:** PREL104010 Ensure the safety and efficiency of your unvented water systems with the PREL104010 High Capacity Potable Water Pressure Relief Valve – the ideal choice for superior performance and reliability.

Pneumatically Actuated Wafer & Lugged Butterfly Valves

**Valpres 600 Series Butterfly Valve with Valbia 82 Series Pneumatic Actuator** Introducing the Valpres 600 series butterfly valve, engineered for reliability and performance. This valve features a robust iron body complemented by a stainless steel disc and stem, all lined with durable EPDM rubber. Paired with the Valbia 82 series pneumatic actuator, it is designed for optimal functionality with a minimum pilot air supply pressure of 5.5 Bar g. The actuator boasts a rack and pinion design, encapsulated in a hard anodised aluminium body with blue-coated end caps for added protection. It offers visual position indication and includes 1/8” BSP pneumatic connections. Engineered with bi-directional open/close travel stops, this system is suitable for a maximum air supply pressure of 8 Bar g and is ATEX II 2GD T6 approved for use in hazardous environments. The package includes a mounting kit to ensure swift installation. Each unit is fully assembled and rigorously function tested for quality assurance. **Specifications:** - **Size Range:** Available in sizes from 1.¼” to 24” - **Body Types:** Wafer pattern compatible with various flange drillings, and wafer lugged pattern suited for PN16 flanges - **Body Materials:** - Wafer Pattern: Cast Iron - Wafer Lugged Pattern: Ductile Iron - **Trim Material Options:** Choose between SG iron disc with NBR or Viton liners - **Actuator Options:** Select from double acting, spring return (available in fail close or fail open configurations). Stainless steel and painted actuator options are also offered. Optimise your piping systems with the Valpres 600 series butterfly valve and Valbia actuator, combining durability, performance, and safety for industrial applications.

AURA EXZ Sub-Atmospheric Back Pressure Regulator

The AURA EXZ is a sub-atmospheric back-pressure regulator specifically designed to provide adjustable relief for excess positive pressure in vacuum systems, which can occur due to pressure build-up or upstream sample injection. Featuring a proprietary hybrid spring system and an oversized dual-surface diaphragm, the AURA EXZ guarantees exceptional precision, stability, and repeatability in its performance. With multiple seat material options available, this regulator effectively eliminates any unwanted reactions with process media, allowing for accurate throttling of excess pressure and helping to maintain optimal process conditions. Each AURA EXZ regulator is meticulously assembled in a Class 100 cleanroom, complete with all necessary gauges, fittings, and valves. The assembly undergoes thorough cleaning for oxygen service, is 100% helium leak tested, and is subjected to comprehensive flow and function tests to ensure long-term reliability, durability, and leak integrity, even in the most demanding environments worldwide. For applications that involve highly corrosive or aggressive substances, the AURA EXZ can be equipped with Dursan® LS inert coating technology, providing superior resistance to acidic and caustic media compared to traditional exotic alloys. This inert surface not only prevents moisture and media absorption but also ensures consistent performance in sensitive processes. With its precision control, advanced material options, and robust construction, the AURA EXZ is the ideal choice for accurate and reliable excess pressure control in sub-atmospheric applications.

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Flowstar (UK) Ltd

Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom

Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.

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