Niezgodka Type 91 Vacuum Relief Valve

**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.

The Kunkle Bailey 716SSL Safety Relief Valve (featuring a metal disc with a lifting lever, ideal for steam and liquid applications) is designed to offer exceptional performance and safety. This safety relief valve integrates a top-guided, unobstructed seat bore with full lift capability, ensuring maximum discharge efficiency. Compliant with BS6759 Parts 1, 2, and 3, the Bailey 716 safety relief valve is perfectly suited for safeguarding vessels, pipelines, and equipment that utilise hot or cold water, air, steam, and various gases and liquids. **Specifications:** - **Sizes:** Available from 1/2" x 3/4" to 2" x 3" - **Connections:** BSP Female Inlet x BSP Female Outlet - **Materials:** Constructed with a bronze body and a chrome vanadium spring - **Disc:** Made from durable stainless steel - **Mediums:** Compatible with gases and liquids, including air, hot water, and steam - **Set Pressure:** Ranges from 0.35 to 32 Barg (depending on size) - **Temperature Range:** -29 to +220 degrees Celsius maximum **Additional Information:** This valve is also marketed under other names such as IMI Bailey Birkett valves, Kunkle Emerson valves, and Safety Systems UK valves. Optimise your safety and ensure reliable performance with the Kunkle Bailey 716SSL Safety Relief Valve, the ideal choice for a wide range of industrial applications.

**Features and Benefits of Our High-Quality Valves** - **Dezincification Resistant**: Our valves are designed to withstand dezincification, ensuring longevity and reliability. - **Lightweight and Compact**: These valves are easy to install and operate, making them a convenient choice for any project. - **Enhanced Leak Protection**: Experience improved leak prevention features for greater peace of mind. - **Increased Durability**: Our valves are more resistant to damage during installation, reducing the risk of future issues. - **Variety of Sizes**: Available in sizes ranging from 15mm to 28mm, catering to diverse plumbing needs. - **WRAS Approved**: Fully compliant with the Water Regulations Advisory Scheme for your added assurance. **Specifications** - **UK End Connection**: Fitted with compression ends in accordance with BS EN 1254-2:1998 for easy integration. - **Operator Feature**: Designed for use with T-Handle, Spanner, or Socket for versatile operation. - **Quarter Turn Operation**: Quick and efficient operation with a simple quarter turn. - **PTFE Seats and Stem Seal**: Provides enhanced sealing capabilities for reliable performance. - **WRAS Listed**: Certified for use with water meant for human consumption. - **Compatibility**: Suitable for Low Temperature Hot Water (LTHW), chilled, and wholesome (potable) water services. **Pressure and Temperature Rating** - For detailed pressure and temperature ratings, please refer to the datasheet. This high-quality valve solution ensures robust performance and compliance, making it suitable for a wide range of applications in plumbing and water services.