CONCOA 412 Series Regulator

Introducing the PREL102009 Reliance Water Controls (RWC) 102 Series Potable Water Pressure Relief Valve, expertly engineered to discharge water from the system at a predetermined pressure in the event of cold water over-pressurisation in an unvented cylinder. The Reliance 102 Series Potable Water Pressure Relief Valves serve a crucial role in safeguarding unvented systems from dangerous over-pressurisation. These valves are pre-set and locked at a specific pressure; should the system exceed this limit, the valve will lift off its seat, allowing water to be safely discharged to waste. Acting as the primary safety device in unvented systems, these pressure relief valves are constructed with a durable single-piece cartridge and are available in various pressure settings, ranging from 3.5 to 8 bar, along with multiple connection sizes to facilitate flexible installation.

Features and Benefits:

• Quick removal of the single-piece cartridge for easy cleaning or replacement
• Advanced diaphragm design enhances resistance to scale build-up
• Delivers robust protection against over-pressurisation
• Multiple connection options for adaptable installation
• Set relief pressure range from 3.5 to 8 bar
• Suitable for cold water applications only

Specifications:

• Size: 1/2" x 15mm
• Connections: BSP Male Inlet x Compression Outlet
• Materials: Hot pressed DZR Brass
• Medium: Cold water
• Set Pressure: 3.5 Barg
• Temperature: +140 °C
• Product Code: PREL102009

Invest in the reliability and safety of your unvented system with the PREL102009 Reliance Water Controls 102 Series Potable Water Pressure Relief Valve, designed for optimal performance and peace of mind.

The FSSCRA rupture disc is an ASME-approved compression or reverse-acting disc featuring precision micro-scored petals with four, six, or more radial scores. This design ensures rapid, full opening while reducing the risk of petal separation, making the disc suitable for both low and high burst pressure applications.

Designed for use with gases and liquids (with a gas cushion), the FSSCRA performs reliably in cycling and pulsating conditions without compromising safety margins. The disc responds to overpressure within milliseconds and opens cleanly without fragmentation, making it particularly well suited for protecting safety relief valves.

With an operating-to-burst pressure ratio of up to 95%, the FSSCRA delivers excellent efficiency and stability. It offers strong corrosion resistance, which can be further enhanced with an optional PTFE lining, and in many applications can operate under full vacuum without the need for additional supports. The design complies with ASME Section VIII, Division 1 requirements.

Key Specifications:

• Sizes: 1" (DN25) to 36" (DN900)

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

• Burst Pressure Range: 0.41–137 bar g (6–2000 psi g), depending on size and material

• Krl: 0.48

• Tolerance: ±5% to ±20%

• Temperature Range: –196°C to 480°C

• Operating Margin: 90%, up to 95% depending on service conditions

• Fragmentation: None

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Optional

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

• Rupture Detection: Electrical, Magnetic, Inductive, Optical

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

This replacement inlet check valve is designed specifically for the Resideo Braukmann BA300 Class 4 Backflow Preventer RPZ Valve - Category 4.

Part Numbers:

0904052, 0904053, 0904054, 0904055, 0904056

Ensure the efficiency and reliability of your backflow prevention system with our high-quality inlet check valve. Ideal for use with the Resideo Braukmann BA300 Backflow Preventer, this replacement part meets stringent UK standards for plumbing and water safety. Compatible with various part codes, it's essential for maintaining the integrity of your RPZ valve. Order now to keep your plumbing system safe and compliant.