Reliance RWC 100 Series Pressure Relief Valve 1" x 1.1/4" F x F 3 Bar - PREL100023
The PREL100023 High Capacity Sealed Heating System Pressure Relief Valve discharges water off the system at a set pressure in the event of system over pressurisation (high for larger capacity systems) Reliance Valves 100 Series Pressure Relief Valves are made from hot pressed brass and are predominantly used to protect closed-circuit wet heating systems from overpressure. The outlet is one size larger than the inlet to ensure high discharge flow rates. It has a separate seal seating from the diaphragm to give improved scaling resistance and a cover which is made from OT58 brass. Available in a variety of sizes to suit most installations, it also has a pressure range from 2.5 - 5.0 bar, with the response pressure indicated on the twist cap. The valve size is determined by the heat output of the boiler as shown in the maximum heating capacity table.
Features and benefits:
- High flow design for larger capacity systems
- Outlet is one size larger than the inlet for high capacity discharge
- Provides protection against over pressurisation in wet heating systems
- Diaphragm design gives improved resistance against scale
- Cartridge design gives ease of service and replacement without the need to reset the response pressure
- Set pressure range from 2.5 - 5.0 bar to suit any system requirement
- High lift design for increased discharge capacity
- Suitable for heating applications only
Specification
Size: 1" x 1.1/4"Connections: BSP Female Inlet x BSP Female OutletMaterials: Hot pressed DZR BrassMedium: WaterSet Pressure: 3 BargTemperature: +140 degCProduct Code: PREL100023Notes: WRAS approved
Other Products and Services from Flowstar (UK) Ltd
Hattersley Fig M650 PN25 Swing Check Valve
Features & Benefits
• Check valves allow flow in a single direction and automatically close if the flow reverses, ensuring optimal system integrity.
• Perfect for use with water and a variety of other liquids.
• Equipped with a bolted cover for added durability and security.
• Features a swing type check valve with a high-quality bronze seat.
• Suitable for both horizontal and vertical pipeline installations.
• Coated with Fusion Bonded Epoxy, making it ideal for a C3 environment, enhancing corrosion resistance.
Specification
• This swing check valve boasts a cast iron body and bonnet, compliant with BS EN 1561 GJL-250, along with a cast iron disk also conforming to BS EN 1561 GJL-250, featuring a bronze disk facing and bronze seat in accordance with BS EN 1982 CC491K.
• The valve is full bore and manufactured to meet BS EN 16767 standards, rated at PN16 and capable of operating in a temperature range of -10 to 220°C.
• Gasket material is graphite-based, providing robust sealing capabilities.
• The valve comes equipped with drilled flanges, conforming to BS EN 1092-2 PN25 standards.
• It features a C3 corrosion level epoxy coating and complies with the Pressure Equipment Directive 2014/68/EU.
Pressure/Temperature Rating
• BS EN 16767 PN25 specifications.
• Operates at 25 Barg from -10 to 120ºC.
• Capable of handling 21.5 Barg at 220ºC.
• Maximum temperature for DN300 is 110°C.
AURA EX2 Two Stage Pressure Reducing Regulator
The AURA EX2 regulator is meticulously crafted to provide precise and consistent primary pressure control for gases or liquids, accommodating inlet pressures of up to 6000 psig. Unlike standard regulators, the EX2 is specifically designed for applications where even slight fluctuations in outlet pressure due to diminishing inlet pressures are intolerable. At the heart of the EX2 lies AURA’s innovative dual encapsulated seat design, which merges multiple moving internal components into a single comprehensive unit. This advancement minimises maintenance needs, eliminates common failure points, and enhances long-term reliability. Each encapsulated seat is protected by a 10-micron, 360° filter, ensuring superior particle filtration compared to conventional pressed-in disks. Unlike typical regulators that filter solely through the pipeline port, the EX2 safeguards against harmful particles from all inlet ports. A diverse selection of seat materials and orifice sizes guarantees optimal performance across a range of demanding applications. AURA’s precision machining process provides metal-to-metal seals that ensure the highest level of leak integrity while achieving ultra-smooth surface finishes of 4–25 Ra to minimise corrosion. The regulator’s compact internal volume also cuts purge gas consumption, resulting in improved operational efficiency. Every EX2 is assembled within a Class 100 cleanroom, inclusive of all gauges, fittings, and valves. Each unit undergoes thorough cleaning for oxygen service, is subjected to 100% helium leak testing, and passes multiple flow and function tests, ensuring unparalleled purity, durability, and reliability. For environments that are highly corrosive, the EX2 is available with Dursan® LS inert coating technology, offering exceptional resistance to acidic and caustic media, frequently outperforming exotic alloys. This makes the EX2 a dependable choice for critical applications.
Hattersley Fig 817 PN16 Strainer
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.