Bailey 746 - Conversion to a Viton Disc

Introducing the Reliance Valves Aquasystem Stainless Steel Expansion Vessel, expertly designed for potable water applications. These replaceable membrane expansion vessels are essential for managing excess pressure in water systems as the water heats up and expands. By preventing pressure build-up in both sealed heating systems and cold water systems, these vessels ensure safe operational levels. The internal replaceable membrane safeguards against corrosion and contamination, thereby guaranteeing that the water remains safe for human consumption. Moreover, the design allows for quick and efficient servicing without the need to remove the vessel from its installation.

**Features and Benefits:**

• Robust stainless steel bolted flange to prevent corrosion
• Extra wide membrane opening designed to eliminate noise from restricted flow
• Internal membrane ensures water does not come into contact with the steel shell, preventing internal corrosion
• A comprehensive range available from 2 to 5000 litres, catering to all applications
• All models include a replaceable membrane for easy in-situ servicing
• Pre-charge valve included for topping up air pressure
• Suitable for hot and cold water applications

**Specifications:**

• Capacity: 5000 Litres
• Colour: Red
• Pre-Set Pressure: 4 Bar
• Max Pressure: 10 Bar
• Minimum Temperature: -10°C
• Maximum Temperature: 99°C
• Height: 3350mm
• Diameter: 1500mm
• Water Connection: DN80
• Product Code: XVES050220

**Materials:**

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

**Standards and Approvals:**

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

Enhance your water system's efficiency and safety with the Reliance Valves Aquasystem Stainless Steel Expansion Vessel—ideal for both residential and commercial use.

Product Specification

Our comprehensive range of valves is available in various sizes: 15NB, 20NB, 25NB, 32NB, 40NB, 50NB, 65NB, and 80NB. Each valve features a male BSP inlet and a female BSP outlet, ensuring compatibility with most systems.

Constructed from high-quality gunmetal or stainless steel, our valves offer durability and reliability. The disk options vary by size, with all sizes utilising a robust metal-to-metal design, while the 15NB to 50NB variants offer the added advantage of a Viton disk.

Each valve is equipped with 'O' Rings made from nitrile, providing effective sealing for a range of applications. These valves are suitable for use with compressed air, gases, water, oil, and steam, making them incredibly versatile.

The set pressure for our valves ranges from 0.35 to 24 Barg for sizes 15NB to 50NB, and from 0.35 to 13.79 Barg for the 65NB to 80NB sizes. They can operate at a maximum temperature of 200°C, ensuring performance even in demanding conditions.

Enhance your systems with our reliable valves, engineered for optimal performance and longevity. Explore our selection to find the perfect size for your needs.

The PREL101003 Reliance Water Controls (RWC) 101 Series Sealed Heating System Pressure Relief Valve is designed to safely discharge water from the system at a predetermined pressure, providing essential protection against over-pressurisation within heating systems. The Reliance 101 Series Pressure Relief Valves are widely utilised as a crucial safety feature in sealed heating installations. Upon installation, the valve is calibrated to the correct pressure. If the pressure within the system exceeds this set threshold, the valve automatically opens, releasing water into the atmosphere. This functionality effectively prevents the system from reaching hazardous pressure levels that could potentially cause damage and pose risks to individuals nearby.

Features and Benefits:

• Diaphragm design enhances resistance to scaling, resulting in a longer lifespan.
• The straightforward removal of the single-piece cartridge allows easy access for cleaning or replacement.
• Set relief pressure range from 2.0 bar to 6.0 bar provides flexibility in system design.
• Available with FSBP or MBSP/FBSP connections for optimal installation versatility.
• Exclusively suitable for heating applications.

Specification:

• Size: 1/2" x 1/2"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Hot pressed DZR Brass
• Medium: Water
• Set Pressure: 3 Barg
• Temperature: +140°C
• Product Code: PREL101003
• Notes: WRAS approved

Ensure the safety and efficiency of your heating system with the PREL101003 Reliance Water Controls Pressure Relief Valve—an essential component for maintaining safe operating conditions.