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The FSDIFULP Ultra Low Pressure Rupture Discs are composite conventional discs formed by four parts: a slotted, perforated metal part a seal membrane (usually in PTFE but also available in many other metallic or non-metallic materials) a protection section a calibration ring This disc has been designed to be mounted between flanges. It is excellent for use with gas and liquids in static conditions and excellent for low pressures. FSDIFULP discs react to excessive pressure with total opening in a few milliseconds. They are therefore recommended for valve protection. Supports may be provided for vacuum or counter-pressure protection. Composite rupture discs may also be used for simultaneous protection from pressure and vacuum.

Specification

Sizes: 2" (DN50) to 40" (DN1000)

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

Rupture Pressure: 0.5 - 5 bar g (depending on material and diameter)

Krl: 

Tolerance: +/- 5 % to +/- 20%

Temperature: membrane in PTFE/PFA max 265°C, up to 480°C (depending on the membrane)

Operating Margin: Up to 70%

Fragmentation: No (membrane only)

Use under valve: Yes

Corrosion Resistance: Good - can be protected with a PTFE membrane

Linings: Yes

Container: Mounted between flanges 

Rupture Sensor: Electrical, Magnetic, Inductive, Optical

PED Certification (CE Stamp): Available

ATEX EX II 2 GD Certification: AvailableDownload our Rupture Disc Request Form and once completed please send to sales@flowstar.co.uk. 

Excess flow valves are expertly designed to prevent pressure build-up in the space between the rupture disc discharge and the second safety device. As rupture discs function as differential pressure devices, it is crucial to avoid pressure accumulation to ensure proper disc activation at the specified bursting point. Excess flow valves are typically employed in conjunction with rupture discs and safety valves, or when multiple rupture discs are arranged in series. These valves automatically close when subjected to the flow from the rupture disc discharge. Available in ¼” and ½” sizes, excess flow valves can also be customised with T connectors, nipples, and pressure gauges upon request. All accessories for rupture discs are manufactured from high-quality stainless steel.

To request more information, please download our Rupture Disc Request Form and send the completed document to sales@flowstar.co.uk.

The Valfonta Model 250 Liquid Ejector is designed for the efficient lifting of liquids, including oils (both hot and cold), as well as fluid and viscous substances. With a maximum lift height of 6 metres, this ejector offers outstanding reliability, as it features no moving parts, ensuring minimal maintenance and long-lasting performance. Ideal for various industrial applications, the Valfonta Model 250 is the perfect solution for your liquid handling needs.