Hattersley Fig 776 1/2 Inch PN10 Automatic Air Vent C/W Shut Off - DN15

Features & Benefits

• Top-quality range
• Extended and reliable service life
• Full bore design for optimal flow

Specifications

• Quarter turn operation
• PTFE seats and stem seals for enhanced durability

Pressure and Temperature Rating

-10°C to 100°C with a pressure rating of up to 25 Barg

Discover our premium quality range of valves designed for long-lasting performance. With features like a full bore design and reliable PTFE seats and stem seals, our products ensure optimum flow and durability across a wide temperature and pressure range. Ideal for various industrial applications, our valves promise outstanding efficiency and operational reliability.

The Altecnic / Caleffi 253 Solar Safety Valve - 253046 is designed to regulate pressure within the primary circuits of solar heating systems. This valve is specifically chosen based on the required set pressure. As pressure increases within the system, the valve activates when the discharge pressure is reached, releasing excess pressure to the atmosphere. This vital function helps prevent potential damage to solar collectors and other system components caused by excessive pressure levels.

Specification

• Size: 1/2" x 3/4"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Brass (Chrome Plated)
• Medium: Water, Glycol Solutions (Maximum Glycol Percentage: 50%)
• Set Pressure: 6 Barg
• Temperature Range: -30 to +160 degrees Celsius
• Product Code: 253046
• Notes: CE marked

This reliable safety valve is an essential component for maintaining the efficiency and safety of your solar heating system. Its robust construction and advanced design ensure it meets industry standards, providing peace of mind for your installation.

### Features & Benefits - **One-Way Flow Control**: Our check valves allow flow in a single direction and automatically close if the flow reverses, ensuring reliable operation based on pressure and flow velocity. - **Non-Slam Design**: The innovative rubber seat combined with a spring-assisted closure mechanism minimises slamming, enhancing the longevity of the valve. - **Quiet Operation**: The EPDM rubber seat ensures quiet functionality while improving the seating of the disk, resulting in smoother operation. - **Eyebolt Compatibility**: For sizes DN200 and above, the valves feature tapped holes for eyebolts in compliance with BS EN ISO 3226: 2010 (eyebolts are not included). - **Versatile Applications**: This valve is specifically designed for pump duty applications, making it an ideal choice for various systems. ### Specification - **Dimensions**: The face-to-face dimensions meet the standards outlined in BS EN 558 series 16. - **Installation Flexibility**: Suitable for installation in both vertical and horizontal pipelines. Note that when installed in vertical pipelines, the flow must always be directed upwards. - **Regulatory Compliance**: This valve is meant for use with group 2 liquids only, as defined by the Pressure Equipment Directive 2014/68/EU. ### Pressure/Temperature Rating - **Figure 861**: Rated for PN16 - **Temperature Range**: Operational from -10°C to 120°C Optimise your fluid control systems with our reliable check valves, designed for safety, efficiency, and compliance.