Niezgodka Type 22 Relief Valve

Introducing our stainless steel expansion vessel for potable water applications. The Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessel is expertly designed to absorb the additional load within a water system as water heats up and expands. These expansion vessels maintain safe operating levels by preventing excessive pressure build-up in both sealed heating systems and cold water systems. Equipped with a replaceable membrane, these vessels safeguard against corrosion and contamination, ensuring the water remains safe for human consumption. The replaceable membrane feature allows for easy in-situ servicing without having to remove the vessel, making maintenance quick and straightforward.

**Features and Benefits:**

• Stainless steel bolted flange to prevent corrosion
• Extra wide membrane opening reduces noise caused by restricted flow
• Internal membrane ensures no water contact with the steel shell, eliminating internal corrosion
• A comprehensive range available from 2 to 5000 litres, suitable for all applications
• All models come with a replaceable membrane for convenient servicing without removal
• Pre-charge valve for air pressure topping up
• Designed exclusively for hot and cold water applications

**Specification:**

Capacity: 18 Litres
Colour: White
Pre-Set Pressure (Bar): 3
Max Pressure (Bar): 10.0
Minimum Temperature: -10°C
Maximum Temperature: 99°C
Height: 430mm
Diameter: 280mm
Water Connection: 3/4" MBSP
Miscellaneous: Supplied complete with wall bracket accessories
Product Code: XVES050055

**Materials:**
Shell: Epoxy Coated Shell
Membrane: EPDM
Bolted Flange: Stainless Steel

**Standards and Approvals:**
- WRAS approved up to 1000 litres
- CE marked in accordance with Directive PED 97/23/CE
- TUV Certified
- Materials for models ranging from 1000 to 5000 litres comply with BS 6920

**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.

Introducing the PREL102009 Reliance Water Controls (RWC) 102 Series Potable Water Pressure Relief Valve, expertly engineered to discharge water from the system at a predetermined pressure in the event of cold water over-pressurisation in an unvented cylinder. The Reliance 102 Series Potable Water Pressure Relief Valves serve a crucial role in safeguarding unvented systems from dangerous over-pressurisation. These valves are pre-set and locked at a specific pressure; should the system exceed this limit, the valve will lift off its seat, allowing water to be safely discharged to waste. Acting as the primary safety device in unvented systems, these pressure relief valves are constructed with a durable single-piece cartridge and are available in various pressure settings, ranging from 3.5 to 8 bar, along with multiple connection sizes to facilitate flexible installation.

Features and Benefits:

• Quick removal of the single-piece cartridge for easy cleaning or replacement
• Advanced diaphragm design enhances resistance to scale build-up
• Delivers robust protection against over-pressurisation
• Multiple connection options for adaptable installation
• Set relief pressure range from 3.5 to 8 bar
• Suitable 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: 3.5 Barg
• Temperature: +140 °C
• Product Code: PREL102009

Invest in the reliability and safety of your unvented system with the PREL102009 Reliance Water Controls 102 Series Potable Water Pressure Relief Valve, designed for optimal performance and peace of mind.