Altecnic / Caleffi 312 Series Safety Relief Valve 1/2

Altecnic / Caleffi 312 Series Safety Relief Valve 1/2" x 1/2" M x F 6 Bar - 312460CST

**Altecnic / Caleffi 312 Safety Valve - Model 312460CST** The Altecnic / Caleffi 312 Safety Valve (Product Code: 312460CST) is essential for safeguarding domestic hot water systems. This reliable valve is designed to protect hot water cylinders, boilers, and various components in heating systems. Each valve is carefully selected for its required set pressure, ensuring optimal performance. When the system pressure exceeds the preset level, the 312 Safety Valve activates, discharging excess pressure safely into the atmosphere. This critical function helps prevent dangerously high pressure within the system, protecting both the boiler and hot water storage cylinder, as well as ensuring safety for personnel nearby. **Specifications:** - **Size:** 1/2" x 1/2" - **Connections:** BSP Male Inlet x BSP Female Outlet - **Materials:** Brass - **Medium:** Air and Water - **Set Pressure:** 6 Barg - **Discharge Flow Rate:** 248.8 kg/hr - **Maximum Boiler Rating:** 144.6 kW - **Temperature Range:** +5 to +110 °C - **Product Code:** 312460CST - **Certifications:** WRAS approved, CE marked Choose the Altecnic / Caleffi 312 Safety Valve to ensure efficiency, safety, and compliance in your hot water and heating systems. Ideal for both residential and commercial applications, this valve is a critical component for maintaining operational integrity.
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Features:

  • 316L stainless steel diaphragm prevents inboard diffusion

  • CAPSULE® seat with 360° integral filtration

  • Standard relief valve protects diaphragm and gauge

  • Helium leak-tested for integrity

Specifications:

  • Max inlet pressure: 3000 PSIG (210 BAR)

  • Body: Chrome-plated forged brass; Bonnet: Chrome-plated die-cast zinc

  • Gauges: 2½" (63 mm) plated case

  • Seat: PTFE; Filter: 10-micron sintered bronze

  • Temperature range: -40°F to 140°F (-40°C to 60°C)

  • Cv: 0.2; Diaphragm: 316L stainless steel

  • Helium leak integrity: 1 × 10⁻⁸ scc/sec

  • Internal seal: PTFE; Ports: 1/4" FNPT

  • Compliance: Meets/exceeds CGA G-4.1, PED 2014/68/EU, ANSI/ASME B40.1, CRN OH5216

Altecnic / Caleffi 311 Series Safety Relief Valve 3/4

Altecnic / Caleffi 311 Series Safety Relief Valve 3/4" x 3/4" F x F 6 Bar - 311560

The Altecnic / Caleffi 311 Safety Valve - 311560 is specifically designed for use in domestic hot water systems, providing essential protection for hot water cylinders, as well as in heating systems to safeguard boilers and other components. This valve is chosen based on the required set pressure. When system pressure increases and reaches the discharge threshold, the valve opens, releasing excess pressure to the atmosphere. This crucial function prevents the pressure from escalating to dangerous levels within the system, ensuring the safety of the boiler, hot water storage cylinder, and any personnel nearby.

Specifications

  • Size: 3/4" x 3/4"
  • Connections: BSP Female Inlet x BSP Female Outlet
  • Materials: Brass
  • Medium: Air and Water
  • Set Pressure: 6 Barg
  • Discharge Flowrate: 248.8 kg/hr
  • Max Boiler Rating: 144.6 kW
  • Temperature Range: +5 to +110 degC
  • Product Code: 311560
  • Notes: WRAS approved, CE marked

This high-quality safety valve ensures optimal performance and reliability in your heating system, making it a vital component for any domestic hot water setup.

Flowstar UK Ltd

Flowstar (UK) Ltd

Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom

Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.