Altecnic / Caleffi 312 Series Safety Relief Valve 1/2" x 1/2" M x F 2.5 Bar - 312425

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.

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Resideo Shut-Off Three-Way Linear Valve (XI & XE)

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FSGGRG - Graphite Rupture Discs

The FSGGRG Graphite Rupture Discs are replaceable and designed for mounting on either graphite holders (rated for pressures up to 10 bar g) or metal holders (up to 15 bar g). These highly versatile discs cater to a wide range of applications and are particularly efficient in handling aggressive fluids while exhibiting low sensitivity to temperature variations at bursting pressures. Constructed from ultra-pure graphite, the discs are impregnated with phenolic resins, which enhance their impermeability. When ruptured, they provide a complete opening while fragmenting into manageable pieces. For rupture pressures below 1.7 barg, vacuum support is necessary; however, these discs are self-supporting at higher pressure calibrations.

Specifications

Sizes: 1" (DN25) to 8" (DN200)
Materials: Graphite and Stainless Steel
Rupture Pressure: 0.017 – 15 bar g (varies with diameter)
Tolerance: +/- 5% to +/- 20%
Temperature Range: -60 °C to 180 °C
Operating Margin: Up to 75%
Vacuum Support: Not Available
Fragmentation: Yes
Use Under Valve: No
Corrosion Resistance: Excellent - can be protected with a PTFE membrane
Linings: None
Seals: Available in graphite and cork
Rupture Sensor: Electrical
PED Certification (CE Mark): Available

To request our Rupture Disc Form, please download it and send your completed form to sales@flowstar.co.uk.

Niezgodka Type 70 SMG Reducing Valve (Low Output Pressures)

Product Specifications

Sizes Available: 2.1/2", 3", 4"

Connections: Tri-Clamp (ASME BPE or DIN 32676), Male Union (DIN 11851 / 11864-1), Varivent Flange (DIN 11864-2), Flanged PN16 or ANSI 150 R/F, Screwed to ISO 228.

Materials: Stainless Steel 316L or 304

Disk Options: EPDM, PTFE (FDA Approved), AF100, or Viton

Joints & Seals: Diaphragm: EPDM, PTFE (FDA Approved), AF100, or Viton

Mediums Supported: Suitable for Steam, Gases, and Liquids

Inlet Pressure (Maximum): 25 Barg

Outlet Pressure Range: 0.005 to 0.30 Bar

This comprehensive specification provides essential details about our robust and versatile products, ideal for applications involving steam, gases, and liquids. Crafted from high-quality stainless steel, our fittings ensure durability and reliable performance in various industrial settings. The range of connection options and materials guarantees compatibility with a wide array of systems, making our products the perfect choice for your needs.

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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.

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