Reliance RWC 18 Litre Aquasystem Potable Expansion Vessel Pre Set 3 Bar - XVES050050

**Stainless Steel Expansion Vessel for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessel, expertly designed to accommodate the additional load within your water system as water heats up and expands. Our stainless steel vessels play a crucial role in maintaining safe operational levels by effectively preventing pressure build-up in both sealed heating and cold water systems. At the heart of our expansion vessels is a replaceable membrane that safeguards against corrosion and contamination, ensuring that the water remains safe for human consumption. This innovative design allows for straightforward servicing without the need to dismantle the vessel, enabling quick and efficient maintenance in situ. **Features and Benefits:** - **Corrosion Resistant Design:** The stainless steel bolted flange provides enhanced protection against corrosion, ensuring longevity. - **Reduced Noise Levels:** An extra-wide membrane opening helps to minimise noise caused by restricted flow. - **Internal Protection:** The internal membrane keeps water from contacting the steel shell, preventing any risk of internal corrosion. - **Versatile Capacities:** Our range extends from 2 to 5000 litres, catering to all application requirements. - **Easy Maintenance:** Each version is fitted with a replaceable membrane, allowing for maintenance without the need for vessel removal. - **Convenient Pre-Charge Valve:** Easily top up air pressure with the built-in pre-charge valve. - **Hot and Cold Water Compatibility:** Suitable for both hot and cold water systems. **Specifications:** - **Capacity:** 18 Litres - **Colour:** White - **Pre-Set Pressure:** 3 Bar - **Maximum Pressure:** 10.0 Bar - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 430mm - **Diameter:** 280mm - **Water Connection:** 3/4” MBSP - **Product Code:** XVES050050 **Materials:** - **Shell:** Epoxy Coated - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS Approved up to 1000 litres - CE Marked according to Directive PED 97/23/CE - TUV Certified - Models ranging from 1000 to 5000 litres comply with BS 6920 Ensure the safety and reliability of your water systems with the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessel. Perfect for domestic and commercial applications alike.

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RWC Floguard Double Check Valve with Test Point - Cat 3

Introducing the Floguard range of Category 3 double check valves, designed to safeguard against the dangers of backflow and back-siphonage contamination associated with Category 3/Class 3 risks. Each valve features a convenient test point, allowing for easy monitoring of the downstream check valve's functionality. For more in-depth information, be sure to explore our enlightening article on Backflow Prevention in the Technical section of our website.

Specifications

Sizes: Available in 15mm, 22mm, and 28mm compression fittings, or 1/2", 3/4", 1", 1.1/4", 1.1/2", and 2" Female BSP.

Connections: Compression or Female BSP.

Materials: DZR Brass body, EPDM seals, Acetyl Copolymer check cartridges, and Stainless steel springs.

Medium: Drinking water.

Working Pressure: Ranges from 0.1 to 16 Barg.

Maximum Temperature: Up to 85°C.

Notes: WRAS approved.

This optimised description enhances visibility in search engines while effectively communicating the essential features and specifications of our Floguard double check valves.

Niezgodka Type 91 Vacuum Relief Valve

Product Specifications

Sizes: Available in 1/2", 3/4", 1", 1.1/4", 1.1/2", and 2".

Connections: BSPP male, cone and nut to DIN 11851, flanged to DIN or ANSI, threaded to DIN 11851.

Materials: Constructed from high-quality Stainless Steel (91.2). Disk: Viton. Joints & Seals: FPM.

Medium: Suitable for non-toxic steam and gases. Set Pressure: Vacuum range from -0.05 to -0.95 Barg.

Temperature Range: Operates effectively between -60 to +150°C (91.2).

Design Certification: TUV certified.

Important Note: Please be aware that the Brass (91.3) version of this valve has been discontinued.

Altecnic / Caleffi 311 Series Safety Relief Valve 3/4" x 3/4" F x F 3 Bar - 311530

The Altecnic / Caleffi 311 Safety Valve - 311530 is an essential component in domestic hot water systems, designed to safeguard the hot water cylinder and heating systems by protecting boilers and other vital components. This safety valve is meticulously chosen according to the required set pressure. As system pressure increases, the valve automatically opens at the discharge pressure to release excess pressure safely into the atmosphere, thereby preventing dangerous pressure levels that could jeopardise the boiler, hot water storage cylinder, and the safety of personnel in proximity.

Product Specification

Size: 3/4" x 3/4"
Connections: BSP Female Inlet x BSP Female Outlet
Materials: Brass
Medium: Air and Water
Set Pressure: 3 Barg
Discharge Flowrate: 142.1 kg/hr
Max Boiler Rating: 82.5 kW
Temperature Range: +5 to +110 °C
Product Code: 311530
Notes: WRAS approved, CE marked

Ensure the safety and efficiency of your hot water and heating systems with the reliable Altecnic / Caleffi 311530 Safety Valve. Ideal for both residential and commercial applications, this valve meets stringent safety standards, making it a trusted choice for heating professionals across the UK.

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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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