Altecnic / Caleffi 314 Series Safety Pressure Relief Valve with Gauge 1/2" x 1/2" M x F 3 Bar - 314430

The Altecnic / Caleffi 312 Safety Valve - 312425 is an essential component for domestic hot water systems, designed to safeguard hot water cylinders and heating systems, including boilers and other critical components. This safety valve is chosen based on the specific set pressure required for your system. As pressure increases and reaches the predetermined discharge pressure, the valve opens, allowing excess pressure to escape to the atmosphere. This vital function prevents the internal pressure from escalating to levels that could pose a risk to the boiler, hot water storage cylinder, and the safety of personnel nearby.

Technical Specifications

• Size: 1/2" x 1/2"
• Connections: BSP Male Inlet x BSP Female Outlet
• Materials: Brass
• Medium: Air and Water
• Set Pressure: 2.5 Barg
• Discharge Flowrate: 124.4 kg/hr
• Max Boiler Rating: 72.3 kW
• Temperature Range: +5 to +110 °C
• Product Code: 312425

Notes: This product is WRAS approved and CE marked, ensuring compliance with industry standards and safety regulations.

The CONCOA 420 Series four-port, single-stage line regulator features SilcoNert® 2000-treated wetted surfaces for reactive or corrosive gases, providing stable primary or secondary pressure control. Ideal for ultra-pure, inert, or trace reactive gases like hydrogen sulfide, mercury, and nitric oxide, the regulator offers a metal-to-metal diaphragm seal, CAPSULE® seat with 360° filtration, cleanroom assembly, and front/rear panel mounting. Rated for up to 3000 PSIG (4500 PSIG optional), with SilcoNert® 2000 body, bonnet, diaphragm, and filter, PTFE seat and seals, 1/4 in FNPT ports, Cv 0.1, and helium leak integrity of 1×10⁻⁹ scc/sec. Conforms to CGA G-4.1, PED 2014/68/EU, ANSI/ASME B40.1, and CRN OH5216.5R2. Operating temperature: -40°F to 140°F (-40°C to 60°C).

Product Specifications

Sizes Available: 1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2" Connections: Screwed BSPP Inlet with Open Discharge Outlet Materials: Durable Stainless Steel (66.2) Disk: Viton Joints & Seals Medium Compatibility: Non-toxic Steam, Gases, and Liquids Set Pressure Range: 0.1 to 35 Barg (depending on size and medium) Temperature Range: -60 to 130°C Design Certification: TUV Approved