FSSCDA - ASME approved Rupture Discs

The FSSCDA rupture disc features precision micro-scored petals with four, six, or more radial scores, ensuring fast, controlled opening while minimising the risk of petal separation. This design makes the disc particularly suitable for high burst pressure applications. It can be used with both gases and liquids, including under cycling and pulsating conditions, without reducing safety margins. In an overpressure event, the disc activates within milliseconds and opens cleanly without fragmentation, making it ideal for protecting safety relief valves.

The FSSCDA supports an operating-to-burst pressure ratio of up to 85% and offers excellent corrosion resistance, which can be further enhanced with an optional PTFE lining. In many applications, the disc can also operate under full vacuum conditions without the need for support, providing added flexibility. These discs comply fully 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: 2–413 bar g (30–6000 psi g), depending on size and material
Krl: 1.33
Tolerance: ±5% to ±20%
Temperature Range: –196°C to 600°C
Operating Margin: Up to 85%
Fragmentation: None
Use Under Valve: Yes
Corrosion Resistance: Very good
Linings: Optional
Holder Options: FSHI/A, FSHI/P, FSHI/F, FSHTC
Rupture Detection: Electrical, Magnetic, Inductive, Optical
Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD

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Other Products and Services from Flowstar (UK) Ltd

FSHRADH - Rupture Disc Holder for Reverse Acting Discs

Introducing the FSHRADH Rupture Disc Holder for Reverse Acting Discs, engineered to deliver exceptional reliability for your rupture discs. Our expertly designed disc holders are intended for installation between flanges, featuring an internal diameter that accommodates the full opening of the disc while ensuring optimal transmission through a minimal discharge area. Additionally, the external tangent diameter is tailored to align effortlessly with the bolt positioning, simplifying centring between flanges. Each disc holder also includes two stainless steel assembly plates for added durability.

Specifications

Compatible with Discs: FSSCR, FSY90, FSKRD
Available Sizes: 3/4" (DN20) to 4" (DN100)
Materials Used: Carbon steel, Stainless steel (316L), Alloy 201, Alloy 400, Alloy 600, Alloy C276, Titanium, Tantalum
Linings: Yes (PTFE or glass fibre reinforced PTFE)
Accessories: Nipples, T connections, excess flow valve, pressure gauge

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

Resideo DRU Three-Way Mixing Valve

The Resideo DRU Three-Way Rotary Valve is designed to optimise water temperature control in heating and air-conditioning systems. This sophisticated valve is engineered to provide precise mixing control between supply water and return-flow temperatures. Constructed from robust red brass, it ensures durability and reliability, particularly when used with M6061/VMM and M7061/VRM actuators. Its innovative inner housing design features an interchangeable rotary plug, allowing for seamless adaptation to various applications without the need to drain the system. Furthermore, when paired with the distance-adjustable H-Extension, it can function effectively within a diverse range of pre-piped systems. **Key Features:** - Interchangeable rotary plug for versatile use - Durable cast iron housing for long-lasting performance - Chrome-plated plug to enhance longevity - Optimised characteristics for efficient supply water temperature control - Simple and reliable installation of electrical actuators - Available in two housing sizes to accommodate a broad spectrum of flow rates - Streamlined, compact design - Suitable for manifold use with the optional H-Extension - Thermal insulation package included **Product Codes:** DRU25-6.3, DRU25-10, DRU32-10 Optimise your heating and air-conditioning systems with the Resideo DRU Three-Way Rotary Valve – the reliable solution for effective water temperature control.

Resideo Flanged Two-Way Linear Valve (DF)

The Resideo Flanged Two-Way Linear Valve (DF) is a single-seated valve designed for the modulating control of hot or chilled water, as well as steam, within heating, ventilation, and air conditioning (HVAC) systems. These valves are specifically engineered for high differential pressure applications, such as district heating. They can be seamlessly operated by the linear actuators in the ML64... and ML74... series.

Special Features:

Pressure-balanced plug for enhanced stability
Nodular iron body with durable flanged end connections
Low seat leakage rate to ensure efficiency
Metal-to-metal seating for longevity and reliability
Self-adjusting packing that maintains performance
Precise positioning for cutting-edge temperature control
Direct-coupled electric configuration for straightforward installation

Product Codes:

DF15B0.25CI, DF15B0.4CI, DF15B0.4NI, DF15B0.63CI, DF15B0.63NI, DF15B1.0CI, DF15B1.0NI, DF15B1.6CI, DF15B1.6NI, DF15B2.5CI, DF15B2.5NI, DF15B4.0CI, DF15B4.0NI, DF15C0.4, DF15C0.63, DF15C1.0, DF15C1.6, DF15C2.5, DF15C4.0, DF15D0.25, DF15D0.4, DF15D0.63, DF15D1.0, DF15D1.6, DF15D2.5, DF15D4.0, DF20B4.0CI, DF20B6.3CI, DF20B6.3NI, DF20C6.3, DF20D6.3, DF25B10CI, DF25B10NI, DF25C10, DF25D10, DF32B16CI, DF32B16NI, DF32C16, DF32D16, DF40B25CI, DF40B25NI, DF40C25, DF40D25, DF50B40CI, DF50B40NI, DF50C40, DF50D40, DF65B63CI, DF65B63NI, DF65C63, DF65D63, DF80B100CI, DF80B100NI, DF80C100, DF80D100, DF100B160CI, DF100B160NI, DF100C160, DF100D160, DF125B250CI, DF125B250NI, DF125C250, DF150B360CI, DF150B360NI

This expertly crafted valve exemplifies reliability and performance, making it an ideal choice for professionals seeking efficiency in HVAC systems.

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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.

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