Besa 139 Safety Valve

The PREL101016 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 in the event of over-pressurisation. This robust valve is an essential safety feature, primarily utilised in sealed heating systems. Upon installation, the pressure relief valve is calibrated to the appropriate pressure setting. If the pressure within the system increases beyond this threshold, the valve activates, allowing excess pressure to be released into the atmosphere. This action safeguards the system from reaching hazardous pressure levels that could potentially cause damage or pose risks to individuals nearby.

Features and Benefits:

• Diaphragm design enhances resistance to scaling, significantly extending its lifespan.
• The single-piece cartridge allows for straightforward removal, facilitating easy access for cleaning or replacement.
• The adaptable relief pressure range of 2.0 bar to 6.0 bar offers flexibility for various system designs.
• Available with FSBP or MBSP/FBSP connections, providing complete installation versatility.
• Specifically designed for heating applications.

Specifications:

• Size: 1/2" x 1/2"
• Connections: BSP Male Inlet x BSP Female Outlet
• Materials: Hot pressed DZR Brass
• Medium: Water
• Set Pressure: 3 Barg
• Temperature Rating: +140°C
• Product Code: PREL101016
• Notes: WRAS approved

Ensure the safety and efficiency of your heating system with the Reliance Water Controls 101 Series Pressure Relief Valve - an indispensable component for maintaining optimal operational standards in sealed heating applications.

**Stainless Steel Expansion Vessel for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels, expertly designed for managing the additional load in water systems during heating, when water volume increases. These expansion vessels play a critical role in maintaining safe operating levels, effectively preventing excessive pressure build-up within both sealed heating and cold water systems. Equipped with a replaceable membrane, these vessels guard against corrosion and contamination, ensuring that the water remains safe for human consumption. The replaceable membrane allows for seamless servicing in situ, eliminating the need for removal and enabling quick maintenance. **Features and Benefits:** - **Corrosion-Resistant Design**: The stainless steel bolted flange construction ensures long-lasting durability and prevents corrosion. - **Minimised Noise**: The extra-wide membrane opening helps to reduce noise caused by restricted water flow. - **Internal Protection**: The internal membrane ensures that water does not come into contact with the steel shell, effectively halting internal corrosion. - **Versatile Capacity Range**: Available in sizes from 2 to 5000 litres, suitable for various applications. - **Easy Servicing**: Each version is supplied with a replaceable membrane, allowing for hassle-free servicing without removal. - **Convenient Pre-Charge Valve**: Includes a pre-charge valve for easy topping up of air pressure. - **Hot and Cold Water Compatible**: Designed specifically for use with hot and cold water systems only. **Specifications:** - **Capacity**: 5 Litres - **Colour**: White - **Pre-Set Pressure**: 3.0 Bar - **Maximum Pressure**: 10.0 Bar - **Minimum Temperature**: -10°C - **Maximum Temperature**: 99°C - **Height**: 304 mm - **Diameter**: 160 mm - **Water Connection**: 3/4” MBSP - **Product Code**: XVES050020 **Materials:** - **Shell**: Epoxy Coated - **Membrane**: EPDM - **Bolted Flange**: Stainless Steel **Standards and Approvals:** - WRAS approved for capacities up to 1000 litres - CE marked in accordance with Directive PED 97/23/CE - TUV Certified - Compliance with BS 6920 for models ranging from 1000 to 5000 litres This stainless steel expansion vessel is an essential component for ensuring the efficiency and safety of your potable water systems.

Refrigeration Flow Indicators and Sight Glasses facilitate the continuous monitoring of liquid levels within your refrigeration system. These essential components ensure optimal performance and efficiency, providing peace of mind for your operations.

Specifications:

• Sizes: Ranging from 3/8" to 4"
• Connections: Available in Flanged or Screwed options
• Materials: Constructed from Steel or Stainless Steel, depending on the specific type
• Medium: Suitable for glycol-based cold brine refrigerants as per EN 378 p. 1, including NH3, R134a, R290 (propane), R507, blends with refrigerant oil, as well as neutral gas and liquid media
• Pressure Rating: PS 25, PS 40
• Temperature Range: -60°C to +120°C Max
• Design: Tailored to meet your specific needs
• Notes: Please consult with our team for additional guidance and specifications.

Optimise your refrigeration system with our high-quality Flow Indicators and Sight Glasses, designed for durability and reliability under a variety of operational conditions.