Altecnic / Caleffi 311 Series Safety Relief Valve 1/2" x 1/2" F x F 8 Bar - 311480 Altecnic / Caleffi 311 Series Safety Relief Valve 1/2" x 1/2" F x F 8 Bar - 311480

Features & Benefits

• Single unit Y-Pattern globe valves with an integrated orifice plate, designed to create a fixed orifice flow measurement unit, providing both regulation and isolation capabilities. • The Double Regulating feature enables the valve to be used for isolation and allows it to return to its pre-set position, ensuring the desired flow rate is maintained. • Flow measurement accuracy of ±5% is guaranteed at all open positions of the valve in line with BS 7350: 1990 standards. • Ideal for injection or other circuits that require a double regulating valve for effective system balancing. • Finished with an external spray epoxy coating for enhanced durability.

Specification

• Y-Pattern globe valves designed for flow regulation and isolation, equipped with Figure 631 test points for effective flow measurement. • These valves meet the specifications of BS 7350, with flanged ends conforming to BS EN 1092-2 (formerly BS 4504).

Pressure/Temperature Rating

• PN16 / -10 to 120°C • Ratings comply with BS EN 1092-2 PN16 (previously BS 4504).

The Altecnic / Caleffi Relief Valve - Pushfit Inlet - 312408 BRT is designed for use in domestic hot water systems, providing essential protection for hot water cylinders. Additionally, this relief valve safeguards heating systems, such as boilers and other critical components. The valve is chosen based on the required set pressure; as the pressure within the system increases and reaches the designated discharge pressure, the valve opens, releasing excess pressure to the atmosphere. This action prevents potentially dangerous pressure levels that could affect the boiler, hot water storage cylinder, and personnel nearby.

Product Specifications

Size: 1/2" x 1/2" Connections: Pushfit Inlet x BSP Female Outlet Materials: Brass Medium: Air and Water Set Pressure: 3 Barg Temperature Range: +5 to +110 °C Product Code: 312408 BRT

Features & Benefits

• Constructed from robust iron for an extended service life

• Offers precise flow regulation for optimal performance

• Fully-lugged design for easy installation and operation

• Ensures positive flow control across all settings

Specification

• Complies with BS EN 593: 2009 standards

• Valves measuring 250mm and above come with a gearbox only

• Valves up to and including 200mm can be supplied with either a lever or gearbox operation

• All operators are equipped with a double regulating feature

Pressure/Temperature Rating

• EPDM seat material

• Rated for 16 bar pressure from -10 up to 120ºC