Emerson Kunkle 337 Safety Relief Valve

Features & Benefits

• Effectively safeguards your system by capturing foreign particles.
• Comes with a standard drain plug in the cap for easy maintenance.
• Durable stainless steel screen for long-lasting performance.
• Test points can be installed for thorough system diagnostics.
• ANSI versions available, compliant with Class 125 Fig. 822ANSI & Fig. 922ANSI, as well as Fig. 810ANSI & Fig. 910ANSI.

Specifications

• Robust bolted cover for enhanced durability.
• Models 910 & 922 come complete with two Figure 631 test points.
• Flanges conform to BS EN 1092-2 PN16 or ANSI B16.1 Class 125 standards.

Pressure/Temperature Ratings

• 13 Barg at 220ºC.
• 16 Barg from -10 to 120ºC.
• Please Note: Model 910 is restricted to a maximum temperature of 135ºC.

Enhance the efficiency and protection of your system with our high-quality equipment designed for optimal performance and reliability.

**NABIC 542F Flanged Safety Valve - Versatile Protection for Hot Water, Steam, and Air** The NABIC 542F flanged Safety Valve is an exceptionally versatile solution designed to manage pressures in hot water, steam, or air applications. While primarily engineered for the protection of hot water boilers, its extensive range of applications makes it the perfect general-purpose safety valve for various industrial settings. Additionally, NABIC Valves are backed by an industry-leading 5-year guarantee, ensuring peace of mind for your investment. ### Product Specifications: - **Sizes Available:** 1.1/4" (DN32), 1.1/2" (DN40), 2" (DN50), 2.1/2" (DN65), 3" (DN80) - **Connections:** Flanged Inlet (PN16 or ANSI150) x Female BSPP Outlet - **Materials:** Gunmetal Body, PTFE Seat - **Set Pressure Range:** 0.3 Barg to 10.5 Barg - **Temperature Range:** -20°C to 195°C Max **Note:** Each valve is meticulously set and tested to your required pressure before dispatch, ensuring optimal performance upon arrival. Discover the reliability of the NABIC 542F Flanged Safety Valve – the ideal choice for safety and efficiency in your hot water, steam, and air systems.

**FSY90RA Reverse Acting Rupture Discs: Advanced Safety Solutions for Pressure Management** The FSY90RA Reverse Acting Rupture Discs are expertly engineered compression or reverse circumference micro-scored discs designed for optimal reliability. Featuring a unique camber, the convex disc maintains its shape under normal operating pressure and only modifies when reaching reverse pressure. These cutting-edge devices can handle pressure ratios of up to 95% between operating and rupture pressure, ensuring thousands of operational cycles without compromising reliability. Upon activation, the FSY90RA disc ruptures instantaneously along the pre-scored line, producing no fragments and achieving a full opening in just a few thousandths of a second. Unlike traditional rupture discs, the FSY90RA offers reduced sensitivity to temperature fluctuations, making them particularly advantageous in applications subject to significant temperature variations. They are especially effective for managing both gas and liquid processes (when a special gas cushion is present) and are ideal for protecting pressure relief valves. The FSY90RA discs are available in a variety of materials and thicknesses, providing exceptional resistance to corrosion. For even greater protection, a PTFE lining can be applied to the process side of the disc. Moreover, vacuum support is not necessary, enhancing installation versatility. **Specifications:** - **Sizes:** 1" (DN25) to 8" (DN200) - **Materials:** Stainless Steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, Titanium - **Rupture Pressure:** 0.2 - 70 bar g (depending on material and diameter) - **Tolerance:** +/- 5% to +/- 20% - **Temperature Range:** -196°C to 600°C - **Operating Margin:** 90%, with the potential to reach 95% based on service conditions - **Fragmentation:** None (no fragmentation upon rupture) - **Suitable for Use Under Valves:** Yes - **Corrosion Resistance:** Excellent - **Linings Available:** Yes - **Containers:** FSHR/A, FSHR/P, FSHR/F, FSHTC - **Rupture Sensors:** Electrical, Magnetic, Inductive, Optical - **PED Certification (CE Mark):** Available - **ATEX EX II 2 GD Certification:** Available To order or for more information, please download our Rupture Disc Request Form and send the completed document to sales@flowstar.co.uk. **Optimise your pressure management systems with FSY90RA Reverse Acting Rupture Discs – the reliable choice for safety and efficiency.**