Broady Relief Valves

**Altecnic / Caleffi 314 Relief Valve - A314437CST** The Altecnic / Caleffi 314 Relief Valve - A314437CST is an essential component designed for use in heating systems, domestic water systems, and hydraulic systems. Manufactured by Caleffi S.p.A., this safety relief valve adheres to the critical safety standards outlined in Directive 97/23/CE from the European Parliament and the Council of the European Union, ensuring compliance for pressurised equipment across member States. The 314 series safety relief valves are vital for pressure control in heating systems, including hot water storage units in both hydraulic and domestic water systems. When the system reaches the predetermined pressure, the valve activates, discharging to prevent potentially dangerous pressure buildups that could threaten the generator and installed components. **Product Specifications:** - **Size:** 1/2" x 15mm - **Connections:** BSP Male Inlet - **Materials:** Brass - **Medium:** Air and Water - **Set Pressure:** 3 Barg - **Discharge Flowrate:** 142.1 kg/hr - **Max Boiler Rating:** 82.5 kW - **Temperature Range:** +5 to +110°C - **Product Code:** A314437CST - **Certifications:** WRAS approved, CE marked For reliable and efficient pressure regulation in your systems, trust the Altecnic / Caleffi 314 Relief Valve - A314437CST. Its robust construction and compliance with industry standards make it an indispensable choice for both domestic and hydraulic applications.

The CONCOA 302 Series is a four-port, chrome-plated brass, single-stage cylinder regulator designed for primary pressure control of high-purity, non-corrosive, or liquefied gases. Single-stage regulation is recommended for cylinders under 500 PSIG (34 BAR) or applications where minor outlet pressure fluctuations from cylinder depletion are acceptable, or where inlet pressure is stable.

Features:

• 316L stainless steel diaphragm prevents inboard diffusion

• CAPSULE® seat with 360° integral filtration

• Field-adjustable pressure limit for flexible applications

• Rear panel mounting simplifies installation

• Helium leak-tested for integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR); optional 3500 PSIG (240 BAR) or 4500 PSIG (310 BAR)

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

• Gauges: 2" (50 mm) plated case

• Seats: PTFE; PCTFE for higher-pressure options

• Filter: 10-micron sintered bronze

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

• Cv: 0.1; Diaphragm: 316L stainless steel

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

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

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

Introducing the Floguard range of Category 3 double check valves, designed to safeguard against the dangers of backflow and back-siphonage contamination associated with Category 3/Class 3 risks. Each valve features a convenient test point, allowing for easy monitoring of the downstream check valve's functionality. For more in-depth information, be sure to explore our enlightening article on Backflow Prevention in the Technical section of our website.

Specifications

Sizes: Available in 15mm, 22mm, and 28mm compression fittings, or 1/2", 3/4", 1", 1.1/4", 1.1/2", and 2" Female BSP.

Connections: Compression or Female BSP.

Materials: DZR Brass body, EPDM seals, Acetyl Copolymer check cartridges, and Stainless steel springs.

Medium: Drinking water.

Working Pressure: Ranges from 0.1 to 16 Barg.

Maximum Temperature: Up to 85°C.

Notes: WRAS approved.

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