Berluto DRV878 Reducing Valve

Introducing the FSKRDRA Reverse Acting Rupture Discs, a cutting-edge solution utilising the latest technology in the industry. Designed with a unique camber, the convex disc maintains its shape under operating pressure, only altering when reverse pressure is reached. This innovative device operates with pressure ratios of up to 95% between operating and rupture pressure, demonstrating exceptional reliability through thousands of cycles. Upon reversion, the disc ruptures in just a few thousandths of a second along a scored line, ensuring complete opening without any fragmentation. These rupture discs exhibit lower sensitivity to temperature variations compared to traditional discs, making them ideal for applications with significant temperature fluctuations. Their advanced design allows for use solely in liquid applications and in cycling or pulsating conditions, all while maintaining safety margins. Moreover, they are particularly effective for isolating safety valves. With a wide selection of materials and thicknesses, FSKRDRA discs offer excellent resistance to corrosion. For enhanced protection, a PTFE lining can be applied to the process side of the disc. Notably, vacuum support is unnecessary, and these discs are capable of enduring high counter-pressures. ### Technical Specifications: - **Sizes:** From 1" (DN25) to 36" (DN900) - **Materials:** Available in Stainless Steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, and Titanium - **Rupture Pressure:** Ranges from 0.41 bar g (6 psi g) to 137 bar g (2000 psi g), depending on the material and diameter - **Krl:** 0.48 - **Tolerance:** +/- 5% to +/- 20% - **Temperature Range:** From -196 °C to 480 °C - **Operating Margin:** Typically 90%, with the potential to reach 95% subject to service conditions - **Fragmentation:** None (will not disintegrate upon bursting) - **Use Under Valve:** Yes - **Corrosion Resistance:** Excellent - **Linings:** Available - **Container Types:** FSHR/A, FSHR/P, FSHR/F, FSHTC - **Rupture Sensor Options:** Electrical, Magnetic, Inductive, Optical - **Certifications:** ASME Certification (UD Stamp), PED Certification (CE Stamp), ATEX EX II 2 GD Certification available For further information and to request a rupture disc, please download our Rupture Disc Request Form. Once completed, kindly send it to sales@flowstar.co.uk. Improve your operational safety and efficiency with the FSKRDRA Reverse Acting Rupture Discs today!

Product Specification

Sizes: Available from 15mm to 150mm

Connections: Choose from Screwed BSPP Female (up to 50mm), Screwed NPT Female (up to 50mm), or Flanged (available in all sizes)

Materials: Constructed from durable Cast Iron, Carbon Steel, Bronze, and Stainless Steel

Mediums: Suitable for Steam, Water, Air, and Gases

Inlet Pressure (Maximum): 35 Barg (Cold)

Outlet Pressure Range: From 0.3 to 12.5 Barg (Standard Top) or up to 25 Barg (High Pressure Top)

Flow Coefficient (Cv) Range: Variable, tailored to your requirements

Temperature Limit: Maximum of 220°C

Additional Notes: (a) Pressure Control with precision of plus or minus 1% (b) Available in Full Bore and Low Flow Trims (c) Minimum Pressure Drop of 1.5 Barg

Our high-quality pressure control solutions are designed to meet the demands of various applications, ensuring reliable performance and durability. Explore our extensive range of sizes and materials to find the perfect fit for your project.

The AURA EXZ is a sub-atmospheric back-pressure regulator specifically designed to provide adjustable relief for excess positive pressure in vacuum systems, which can occur due to pressure build-up or upstream sample injection. Featuring a proprietary hybrid spring system and an oversized dual-surface diaphragm, the AURA EXZ guarantees exceptional precision, stability, and repeatability in its performance. With multiple seat material options available, this regulator effectively eliminates any unwanted reactions with process media, allowing for accurate throttling of excess pressure and helping to maintain optimal process conditions. Each AURA EXZ regulator is meticulously assembled in a Class 100 cleanroom, complete with all necessary gauges, fittings, and valves. The assembly undergoes thorough cleaning for oxygen service, is 100% helium leak tested, and is subjected to comprehensive flow and function tests to ensure long-term reliability, durability, and leak integrity, even in the most demanding environments worldwide. For applications that involve highly corrosive or aggressive substances, the AURA EXZ can be equipped with Dursan® LS inert coating technology, providing superior resistance to acidic and caustic media compared to traditional exotic alloys. This inert surface not only prevents moisture and media absorption but also ensures consistent performance in sensitive processes. With its precision control, advanced material options, and robust construction, the AURA EXZ is the ideal choice for accurate and reliable excess pressure control in sub-atmospheric applications.