Niezgodka Type 80 SMK Sustaining Valve (Low Pressures)

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.

The FSDCDS Sanitary Rupture Discs are designed for aseptic applications, consisting of a slotted, perforated metal section, a seal membrane (commonly PTFE, with other materials available), and a protective layer. Ideal for use with gas or liquids under static or low-pressure conditions, these discs open fully within milliseconds during overpressure events, without fragmentation. They can be fitted with supports for vacuum and counter-pressure protection, allowing simultaneous protection against both. PTFE gaskets certified to FDA, USP Class VI, 3-A, and EU 10/2011 standards make installation in Clamp fittings (sanitary, Tri-Clamp, Tank Connection) simple. The FSDCDS is also suitable for C.O.P. (Clean-Out-Of-Place) applications.

Specifications:

• Sizes: 1" (DN25) to 8" (DN200)

• Materials: Stainless steel, Alloy 201, 400, 600, 625, C276, Titanium

• Rupture Pressure: 0.1–7 bar g

• Tolerance: ±5% to ±20%

• Temperature: PTFE gaskets max 265°C

• Operating Margin: up to 80%

• Fragmentation: None

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Yes

• Holder: FSHTC

• Rupture Sensor: Electrical

• Certifications: PED (CE), ATEX EX II 2 GD, 3-A compliant