Bailey 707VL Safety Relief Valve Female x Female (AFLAS Disk with Lever – Suitable for Gas Service)

**Refrigeration Gas-Powered Valves: Efficient Control for Industrial Systems** Refrigeration gas-powered valves, also known as gas-operated valves or pneumatically actuated valves, are essential control components used in industrial refrigeration systems. Typically utilised with ammonia (NH₃) or carbon dioxide (CO₂), these valves are actuated by gas pressure, predominantly from compressed refrigerant gas, instead of relying on electrical power. Our refrigeration gas-powered valves are specifically designed for draining oil from collecting tanks within the oil return circuit, ensuring optimal performance and efficiency in your refrigeration systems. **Specifications:** - **Sizes:** Available in 1" to 1.25" - **Connections:** Flanged & Butt Weld - **Materials:** Constructed from either Steel or Stainless Steel - **Medium:** Suitable for glycol-based cold brine refrigerants in accordance with EN 378, examples include NH3, R134a, R290 (propane), R507, as well as blends with refrigeration oil and neutral gas and liquid media. - **Pressure Rating:** PS 40 - **Temperature Range:** -60 to +180 degrees Celsius Max - **Design:** Robust and reliable to meet industrial requirements These valves are engineered to provide superior control and reliability in challenging refrigeration environments, making them an indispensable choice for your industrial applications.

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.

These valves feature a robust ductile iron body with semi-lugged design to fit PN10, PN16, or Class 125 flanges, integrated notch plate, anti-blowout stem, and fully bonded epoxy coating for Level 3 C3 corrosion protection. Maintenance-free and suitable for flow regulation, they include aluminum bronze discs, EPDM liners, and trigger levers. DN250+ valves come with fully enclosed gear operators. Sizes DN50–DN300 suit BS EN 1092-2 PN10/16 or ANSI B16.1 Class 125 flanges; DN350–DN600 for PN16 only. Rated PN16, -10 to 130°C.