Rhodes 934 Sight Glass with Flap & Scale Plate

Introducing our stainless steel expansion vessel specifically designed for potable water applications. The Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels are essential for managing the additional load in water systems as the water heats and expands. These expansion vessels maintain safe operating levels by preventing the build-up of pressure in both sealed heating systems and cold water systems. Featuring a replaceable membrane, they effectively protect the water from corrosion and contamination, ensuring it remains safe for human consumption. This innovative membrane allows for hassle-free servicing without the need to remove the vessel, facilitating quick and efficient in-situ maintenance.

**Features and Benefits:**

• Robust stainless steel bolted flange to prevent corrosion
• Extra wide membrane opening reduces noise from restricted flow
• Internal membrane prevents water contact with the steel shell, eliminating internal corrosion
• A comprehensive range available from 2 to 5000 litres, catering to all applications
• All models come with a replaceable membrane for easy servicing
• Pre-charge valve included for convenient air pressure topping up
• Compatible with both hot and cold water systems

**Specifications**

• Capacity: 500 Litres
• Colour: Blue
• Pre-Set Pressure (Bar): 3.5
• Max Pressure (Bar): 10.0
• Minimum Temperature: -10°C
• Maximum Temperature: 99°C
• Height: 1490mm
• Diameter: 750mm
• Water Connection: 1.1/4" MBSP
• Product Code: XVES050150

**Materials**

• Shell: Epoxy Coated
• Membrane: EPDM
• Bolted Flange: Stainless Steel

**Standards and Approvals:**

• WRAS approved for up to 1000 litres
• CE marked in accordance with Directive PED 97/23/CE
• TUV Certified
• Materials for 1000 - 5000 litre models comply with BS 6920

Invest in the reliability and safety of your water systems with our top-of-the-range stainless steel expansion vessels, expertly designed to ensure efficient operation and longevity.

The PREL102111 Reliance Water Controls (RWC) 102 Series potable water pressure relief valve is designed to efficiently discharge water from the system at a specified pressure in the event of cold water over-pressurisation within an unvented cylinder. The Reliance Valves 102 Series Potable Water Pressure Relief Valves serve a crucial role in safeguarding an unvented system from the dangers of over-pressurisation. Each valve is pre-set and securely locked to a specific pressure; should the system exceed this threshold, the valve will lift off its seat, allowing water to discharge safely to waste. This essential safety device is the first line of defence in any unvented system. These pressure relief valves feature a robust single-piece cartridge and are available in various pressure settings, ranging from 3.5 to 8 bar, along with multiple connection sizes for versatile installation.

**Features and Benefits:**

• Quick and easy removal of the single-piece cartridge for hassle-free cleaning or replacement.
• Innovative diaphragm design enhances resistance to scale build-up.
• Provides reliable protection against over-pressurisation.
• Flexible installation options with multiple connection sizes.
• Adjustable relief pressure settings from 3.5 to 8 bar.
• Designed specifically for cold water applications only.

**Specifications:**

• Size: 1/2" x 15mm
• Connections: BSP Male Inlet x Compression Outlet
• Materials: Hot pressed DZR Brass
• Medium: Cold Water
• Set Pressure: 4 Barg
• Temperature: Up to +140°C
• Product Code: PREL102111