FSKRDA - ASME Approved Rupture Discs
The FSKRDA rupture discs use advanced sector technology, ensuring the convex disc camber remains unchanged by operating pressure until reverse pressure is reached. Designed for high reliability, they handle up to 95% operating-to-burst pressure ratios and thousands of cycles without compromising performance. On activation, the disc opens fully along the scored line within milliseconds, without fragmentation. These discs are less sensitive to temperature variations, making them ideal for applications with wide thermal swings.
Their innovative design allows safe use with liquids only, including cycling and pulsating conditions, without reducing safety margins. They are particularly suitable for isolating safety valves. A wide range of materials and thicknesses provides excellent corrosion resistance, further enhanced with optional PTFE linings. Vacuum support is not required, and the discs can withstand high counter-pressures.
Specifications:
Sizes: 1" (DN25) to 36" (DN900)
Materials: Stainless steel, Alloy 201, 400, 600, C276, Titanium
Rupture Pressure: 0.41–137 bar g (6–2000 psi g)
Krl: 0.48
Tolerance: ±5% to ±20%
Temperature Range: –196°C to 480°C
Operating Margin: 90–95%
Fragmentation: None
Use Under Valve: Yes
Corrosion Resistance: Very good
Linings: Optional PTFE
Holder Options: FSHR/A, FSHR/P, FSHR/F, FSHTC
Rupture Sensor: Electrical, Magnetic, Inductive, Optical
Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD
Notes: Compliant with ASME Section VIII, Division 1 requirements
Other Products and Services from Flowstar (UK) Ltd
Berluto Float Valves
Berluto float valves are exceptionally robust and dependable. Established in 1920 by Jean Bergner, who patented his innovative design in 1917, Berluto began with valves intended for toilet flush systems. Today, our float valves are utilised across a wide range of applications. They are employed globally in sectors such as agriculture and industry for filling separation or storage systems, as well as for regulating the levels in poultry drinking troughs, humidifiers, car washes, booster stations, and pond constructions, among others. Our technology remains at the forefront of innovation, and our float valves are even implemented in advanced fields like aircraft manufacturing. Designed for reliability, our float valves regulate inflow and water levels without the need for auxiliary power or delicate sensors. True to our ethos: simply install and forget! Additionally, in most of our valve types, the only genuine wear parts—the nozzle and seal—can be easily replaced when necessary, particularly after exposure to aggressive or abrasive media. This level of serviceability is far superior to that offered by competing brands. Regardless of the type of media you require or the flow rates involved, we provide the most suitable float valve for your specific needs. Our range includes options made from brass, red bronze, or stainless steel, featuring NBR or FKM seals, along with PE, copper, or V4A floats. Choose Berluto for reliable, high-quality float valves tailored to your industry requirements.
Hattersley 4970G PN16 Butterfly Valve - Gearbox Operated
Features & Benefits: Durable ductile iron valve body with stainless steel disc, fully lugged for secure installation, integrated notch plate for compact design, anti-blowout stem for safe operation, fully bonded epoxy coating for Level 3 C3 corrosion protection, and maintenance-free design.
Specification: Generally BS EN 593 compliant; face-to-face to BS EN 558; EPDM liner; flange connections to BS EN 1092-2 PN16; suitable for flow regulation; Fig. 4970/4970G approved for Group 2 liquids per PED 2014/68/EU.
Pressure/Temperature Rating: 16 bar, -10 to 130°C.
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.