Reliance RWC TPR28 Pressure & Temperature Relief Valve 1" x 28mm 7 Bar - PTEM100050

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

A marine quick-closing valve (QCV) is a crucial safety shut-off valve utilised on vessels to immediately halt the flow of flammable or hazardous fluids, such as fuel oil, diesel, or lubricating oil, during a fire or emergency situation. These valves can be operated remotely and are mandated by SOLAS (International Convention for the Safety of Life at Sea) and classification societies within machinery spaces and fuel systems.

Purpose of a Quick-Closing Valve

• To swiftly isolate fuel and oil tanks during emergencies, for instance, in the event of an engine room fire.
• To prevent fuel from exacerbating a fire.
• To safeguard personnel and diminish potential damage.
• To ensure compliance with maritime safety regulations, including those from the IMO, SOLAS, and classification societies.

We offer a wide selection of Quick Closing Valves from several leading manufacturers. For your specific requirements, please do not hesitate to contact us.

**Stainless Steel Expansion Vessel for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessel, expertly designed to accommodate the additional load within your water system as water heats up and expands. Our stainless steel vessels play a crucial role in maintaining safe operational levels by effectively preventing pressure build-up in both sealed heating and cold water systems. At the heart of our expansion vessels is a replaceable membrane that safeguards against corrosion and contamination, ensuring that the water remains safe for human consumption. This innovative design allows for straightforward servicing without the need to dismantle the vessel, enabling quick and efficient maintenance in situ. **Features and Benefits:** - **Corrosion Resistant Design:** The stainless steel bolted flange provides enhanced protection against corrosion, ensuring longevity. - **Reduced Noise Levels:** An extra-wide membrane opening helps to minimise noise caused by restricted flow. - **Internal Protection:** The internal membrane keeps water from contacting the steel shell, preventing any risk of internal corrosion. - **Versatile Capacities:** Our range extends from 2 to 5000 litres, catering to all application requirements. - **Easy Maintenance:** Each version is fitted with a replaceable membrane, allowing for maintenance without the need for vessel removal. - **Convenient Pre-Charge Valve:** Easily top up air pressure with the built-in pre-charge valve. - **Hot and Cold Water Compatibility:** Suitable for both hot and cold water systems. **Specifications:** - **Capacity:** 18 Litres - **Colour:** White - **Pre-Set Pressure:** 3 Bar - **Maximum Pressure:** 10.0 Bar - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 430mm - **Diameter:** 280mm - **Water Connection:** 3/4” MBSP - **Product Code:** XVES050050 **Materials:** - **Shell:** Epoxy Coated - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS Approved up to 1000 litres - CE Marked according to Directive PED 97/23/CE - TUV Certified - Models ranging from 1000 to 5000 litres comply with BS 6920 Ensure the safety and reliability of your water systems with the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessel. Perfect for domestic and commercial applications alike.