FSLPDFA - Forward Acting Rupture Discs
The FSLPDFA Forward Acting Rupture Discs provide a straightforward, dependable, precise, and cost-effective solution for applications that necessitate exceptionally low pressure protection, whether positive or negative. These rupture discs are primarily designed to safeguard processing and storage tanks, atmospheric vessels, and silos which have low design pressures, thereby offering resistance only to minor pressures and vacuums. A particularly noteworthy application is their role in protecting biogas digesters. FSLPDFA rupture discs are flat composite structures comprising four key components: a slotted, perforated metal section, a sealing membrane (typically manufactured from PTFE but available in various other metallic or non-metallic materials), a protective section, and a calibration ring with blades to enhance membrane rupture. FSLPDFA rupture discs operate without fragmentation, helping to prevent product contamination, and can be tailored to meet a wide array of non-standard specifications and applications. These discs can be engineered for dual pressure and vacuum protection, making them capable of withstanding vacuum or counter-pressure situations.
Specifications
Sizes: 2" (DN50) to 20" (DN500)
Materials: Stainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, Titanium / Membrane: PTFE, PFA
Rupture Pressure: 5 - 500 millibar g (depending on material and diameter)
Tolerance: from +/- 5% to +/- 20%
Temperature: up to 265°C
Operating Margin: up to 60%
Vacuum Support: Available
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
ATEX EX II 2 GD Certification: Available
To make a request for our rupture discs, please download our Rupture Disc Request Form, complete it, and send it to sales@flowstar.co.uk.
Other Products and Services from Flowstar (UK) Ltd
CONCOA 403 Series Regulator
The CONCOA 403 Series four-port chrome-plated brass regulator delivers secondary or point-of-use pressure control for ultra-high purity inert gases. Rated to full cylinder pressure, it ensures safe operation if primary control fails. Features include metal-to-metal diaphragm seal, CAPSULE® 360° filtration, pipe-away relief, captured vent-capable bonnet, cleanroom assembly, and front/rear panel mounting. Specs: max inlet 3000 PSIG (210 BAR), PTFE seats, 10 µm sintered bronze filter, Cv 0.1–0.2, -40°F to 140°F (-40°C to 60°C), 1/4 in FNPT ports, 2 in gauges. Conforms to CGA G-4.1, ANSI/ASME B40.1, PED 2014/68/EU, CRN OH5216.
Altecnic / Caleffi 253 Solar Series Pressure Safety Relief Valve 1/2" x 3/4" F x F 4 Bar - 253044
The Altecnic / Caleffi 253 Solar Safety Valve - 253044 is essential for regulating pressure in the primary circuits of solar heating systems. This valve is specially selected based on the required set pressure. When the pressure exceeds the predefined limit, the valve opens and vents excess pressure to the atmosphere, effectively preventing excessive pressure that could harm solar collectors and other integral components within the system.
Specifications
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: 4 Barg
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Product Code: 253044
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Resideo Shut-Off Two-Way Linear Valve (DI & DE)
The Resideo Shut-Off Two-Way Linear Valve (DI & DE) is a single-seated control or shut-off two-way linear valve designed for hot water, chilled water, and saturated steam (in valves featuring a stainless steel plug), as well as superheated steam (in valves equipped with a stainless steel plug). This valve is ideal for use in heating, ventilation, and air conditioning systems and open circuit applications. It is operated by electric linear actuators from the ML64... and ML74… series.
SPECIAL FEATURES
- Brass body with external threaded end connections (type DE)
- Brass body with internal threaded end connections (type DI)
- Low seat leakage rate
- Self-adjusting packing
- Precise positioning for optimal temperature control
- Consistent total flow throughout the entire plug travel
Product Codes:
DE15B0.63, DE15B1.0, DE15B1.6, DE15B2.5, DE15B4.0, DE20B6.3, DE25B10, DE32B16, DE40B25, DE50B40
DI15B0.63, DI15B0.63SS, DI15B1.0, DI15B1.0SS, DI15B1.6, DI15B1.6SS, DI15B2.5, DI15B2.5SS, DI15B4.0, DI15B4.0SS,
DI20B6.3, DI20B6.3SS, DI25B10, DI25B10SS, DI32B16, DI32B16SS, DI40B25, DI40B25SS, DI50B40, DI50B40SS
Enhance your HVAC system's performance with the Resideo Shut-Off Two-Way Linear Valve, featuring unmatched precision and reliability. Ideal for residential and commercial applications, this innovative valve guarantees effective temperature management, low leakage, and consistent flow, making it the perfect choice for all your heating and cooling needs.
Flowstar (UK) Ltd
Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom
Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.