Refrigeration Service Valves Refrigeration Service Valves

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

### NABIC 500F Flanged High Lift Safety Valve The NABIC 500F Flanged High Lift Safety Valve is expertly engineered for unvented hot water heating systems, where a robust emergency steam relief capability is imperative. With its exceptional capacity and durable PTFE seating, the NABIC 500F is also ideally suited for steam, air, and inert gas applications. For situations demanding enhanced sealing capabilities, a PTFE to Viton seating design is available. Additionally, NABIC Valves are now backed by an industry-leading 5-Year Guarantee, ensuring peace of mind and reliability. #### Specifications - **Sizes:** - 3/4" x 1" (DN20) - 1" x 1.1/4" (DN25) - 1.1/4" x 1.1/2" (DN32) - 1.1/2" x 2" (DN40) - 2" x 2.1/2" (DN50) - 2.1/2" x 3" (DN65) - **Connections:** - Flanged Inlet (PN16 or ANSI150) x Female BSPP Outlet - **Materials:** - Gunmetal Body - PTFE Seat - **Set Pressure:** - 1.0 to 12.5 Barg (DN20 to DN25) - 0.4 to 12.5 Barg (DN32 to DN65) - **Temperature Range:** - -20°C to 195°C Max **Note:** We set and test the valves to your specified pressure before shipping to ensure optimal performance. Upgrade your safety and efficiency in unvented hot water heating systems with the NABIC 500F Flanged High Lift Safety Valve—where quality meets reliability.

**Product Specification** **Sizes Available:** ½", ¾", 1", 1¼", 1½", 2", 2½", 3" **Connections:** Flanged DIN or ANSI, Tri-Clamp (ASME BPE), DIN 11864-2 Form A, DIN 11851 / 11864-1 **Materials:** Stainless Steel (35.2) **Disk Options:** Metal, Viton or EPDM (FDA compliant) **Joints & Seals:** FPM, EPDM **Medium Compatibility:** Suitable for Steam, Gases, and Liquids **Set Pressure Range:** 0.1 to 16 Barg (depending on size) **Temperature Range:** -50°C to 200°C **Design Certification:** TUV **Notes:** The specified temperature range is applicable for valves featuring a Metal disk. Discover our extensive range of high-quality valves, designed for optimal performance across various applications, including steam, gases, and liquids. Crafted from durable stainless steel, our valves are built to withstand challenging environments, ensuring reliability and longevity. Perfect for both industrial and commercial use, these valves have a versatile set pressure range and are available in multiple sizes and connection types, making them suitable for a wide assortment of installations.