Reliance RWC 200 Litre Aquasystem Potable Expansion Vessel Pre Set 3.5 Bar - XVES050130

The FSKRDA rupture discs use advanced sector technology, ensuring the convex disc camber remains unchanged by operating pressure until reverse pressure is reached. Designed for high reliability, they handle up to 95% operating-to-burst pressure ratios and thousands of cycles without compromising performance. On activation, the disc opens fully along the scored line within milliseconds, without fragmentation. These discs are less sensitive to temperature variations, making them ideal for applications with wide thermal swings.

Their innovative design allows safe use with liquids only, including cycling and pulsating conditions, without reducing safety margins. They are particularly suitable for isolating safety valves. A wide range of materials and thicknesses provides excellent corrosion resistance, further enhanced with optional PTFE linings. Vacuum support is not required, and the discs can withstand high counter-pressures.

Specifications:

• Sizes: 1" (DN25) to 36" (DN900)

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

• Rupture Pressure: 0.41–137 bar g (6–2000 psi g)

• Krl: 0.48

• Tolerance: ±5% to ±20%

• Temperature Range: –196°C to 480°C

• Operating Margin: 90–95%

• Fragmentation: None

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Optional PTFE

• Holder Options: FSHR/A, FSHR/P, FSHR/F, FSHTC

• Rupture Sensor: Electrical, Magnetic, Inductive, Optical

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

• Notes: Compliant with ASME Section VIII, Division 1 requirements

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.

The Altecnic / Caleffi 253 Solar Safety Valve - 253046 is designed to regulate pressure within the primary circuits of solar heating systems. This valve is specifically chosen based on the required set pressure. As pressure increases within the system, the valve activates when the discharge pressure is reached, releasing excess pressure to the atmosphere. This vital function helps prevent potential damage to solar collectors and other system components caused by excessive pressure levels.

Specification

• Size: 1/2" x 3/4"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Brass (Chrome Plated)
• Medium: Water, Glycol Solutions (Maximum Glycol Percentage: 50%)
• Set Pressure: 6 Barg
• Temperature Range: -30 to +160 degrees Celsius
• Product Code: 253046
• Notes: CE marked

This reliable safety valve is an essential component for maintaining the efficiency and safety of your solar heating system. Its robust construction and advanced design ensure it meets industry standards, providing peace of mind for your installation.