Auld Vigilant Safety Valve

The FSY90S Sanitary Rupture Disc is a compression-loaded, reverse-acting disc with precision scoring around its circumference, engineered to meet the stringent hygiene standards of 3-A SSI for public health protection. Designed for use in the pharmaceutical, food, and biotechnology sectors, it is manufactured as standard from AISI 316L stainless steel, with alternative alloys available on request.

A smooth process-side surface makes the disc ideal for CIP and SIP cleaning processes, helping maintain aseptic conditions. Installation is simplified using PTFE gaskets certified to FDA, USP Class VI, 3-A, and EU 10/2011 standards, enabling secure fitment in sanitary clamp connections such as Tri-Clamp and Tank Connection fittings.

The FSY90S is suitable for use with gases or liquids (with a gas cushion) and performs reliably under cycling and pulsating conditions without compromising safety. On reversal, the disc opens fully within milliseconds along the scored line, ensuring clean, fragment-free rupture and dependable pressure relief.

Key Specifications:

• Sizes: 1" (DN25) to 8" (DN200)

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

• Burst Pressure Range: 0.3–10 bar g (dependent on size and material)

• Tolerance: ±5% to ±20%

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

• Maximum Gasket Temperature: PTFE up to 265°C

• Fragmentation: None

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Optional

• Holder: FSHTC

• Rupture Detection: Electrical

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

The Reliance Water Controls (RWC) TPR15 Pressure and Temperature Relief Valves are compact devices designed to protect against over-pressurisation within unvented hot water systems. These valves are essential for safeguarding your system in the event that temperature or pressure controls fail. Engineered for installation at the upper section of a hot water cylinder, the TPR15 valves effectively monitor the highest temperatures within the system. When the temperature exceeds 95°C, the wax mixture inside the temperature probe expands, raising the valve off its seat and allowing water to escape, thus reducing the pressure within the cylinder. In cases where water pressure increases without a corresponding temperature rise, the valve remains closed until the set pressure of the relief mechanism is reached, at which point it opens to relieve excess pressure. Select models feature a PTFE coating on the Male BSP (MBSP) inlet thread, facilitating quicker, hassle-free installation.

**Features and Benefits:**

• Protects against temperatures exceeding 95°C
• Prevents over-pressurisation
• Twist top cartridge design for straightforward servicing
• Available with various pressure settings and probe lengths
• Some models include a PTFE coating for improved installation efficiency

**Specifications:**

• Size: 1/2" x 15mm
• Connections: BSP Male Inlet x Compression Outlet
• Materials: Brass
• Medium: Hot water only
• Set Pressure (Set & Locked): 7 Barg
• Temperature Relief: +90 to 95°C
• Discharge Capacity: 10kW
• Probe Length: 200mm
• Product Code: PTEM550951
• Notes: Long probe, WRAS approved

Ensure your unvented hot water system operates safely and efficiently with the RWC TPR15 Pressure and Temperature Relief Valves, the reliable choice for enhanced protection against extreme temperature and pressure conditions.

The FSSUMSU Sealed Unit Rupture Discs feature a convenient threaded connector and comprise two parts that house a calibrated rupture disc. This rupture disc is meticulously inserted into a threaded and sealed container, making it easy to mount small discs within plants. Designed for reliability, these units simplify handling, eliminating the need for specialised personnel. FSSUMSU sealed units are adept at managing both gases and liquids, even in cyclical and pulsating conditions. They respond to over-pressure in mere milliseconds, offering essential protection for plants, plant equipment, and containers.

Specifications

Sizes: DN3 to 1.1/2" (DN40)

Materials: Stainless steel

Rupture Pressure: 20 - 1150 bar g (subject to material and diameter)

Tolerance: +/- 5% to +/- 10%

Temperature: Up to 480°C

Operating Margin: 80%

Vacuum Support: No

Fragmentation: Yes (available without fragmentation in a special execution)

Use under Valve: No

Corrosion Resistance: Very good

Container: Included for direct mounting

PED Certification (CE Mark): Available

To request your rupture disc, please download our Rupture Disc Request Form. Once completed, kindly send it to sales@flowstar.co.uk.