FSY90S - Sanitary Rupture Discs

**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.

The FSY90N Nano Scored Rupture Disc is a reverse-acting, micro-scored compression disc designed for high reliability and precision pressure relief. Its convex shape remains stable under operating pressure and only inverts at the set reverse pressure. Capable of operating at up to 95% of its burst pressure, the disc withstands thousands of pressure cycles without loss of performance. When activation occurs, it opens fully within milliseconds along the scored pattern, producing no fragments.

FSY90N discs are less affected by temperature fluctuations than conventional rupture discs, making them ideal for processes with wide temperature variations. They are suitable for gas and liquid applications (with a gas cushion where required) and are commonly used to protect pressure relief valves. A broad selection of materials and thicknesses provides excellent corrosion resistance, with optional PTFE lining available for enhanced chemical protection. Vacuum support is not required.

Key Specifications:

• Sizes: 1" (DN25) to 8" (DN200)

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

• Burst Pressure Range: 0.2–70 bar g (depending on size and material)

• Tolerance: ±5% to ±20%

• Operating Margin: 90% standard, up to 95% in suitable conditions

• Temperature Range: -196°C to 600°C

• Fragmentation: None – clean, full opening

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Optional

• Holders: FSHR/A, FSHR/P, FSHR/F, FSHTC

• Rupture Detection: Electrical, magnetic, inductive, optical

• Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD

Introducing the RB Figure 2500 ISO Direct Mount Brass Nickel Plated Full Bore Ball Valve, a high-quality and reliable solution for your fluid control needs. Featuring a brass chrome-plated ball, this valve is equipped with P.T.F.E. seats and P.T.F.E. / FKM / EPDM seals to ensure optimal performance and durability. The end connections are designed with screwed BSP female fittings for easy installation.

Complementing the valve is the Valbia 82 Series Pneumatic Actuator, configured for a minimum pilot air supply pressure of 5.5 Bar g. Its robust rack and pinion design, housed in a hard anodised aluminium body, guarantees reliability. The actuator features blue coated end caps, visual position indication, and 1/8” BSP pneumatic connections, making it user-friendly. With bi-directional open/close travel stops and a maximum air supply pressure of 8 Bar g, this actuator is designed to meet diverse application requirements. It is also ATEX II 2GD T6 approved for safe operation in potentially explosive environments.

Specifications:

• Size Range: ¼” to 4”
• Actuator Options: Double Acting, Spring Return (Fail Close or Fail Open). Also available in stainless steel body and painted finishes.

This fully assembled (Direct Mount) system is function tested to ensure quality and performance. Choose the RB Figure 2500 for a dependable, efficient, and safe solution for your valve and actuator needs.