FSSTDFA - Forward Acting Rupture Discs

The NABIC 542L Pressure Relief Valves are designed for applications where pressure tightness is essential on the discharge side of the valve. These valves are perfect for pump relief, bypass relief, outdoor installations, and handling flammable fluids. Constructed from robust gunmetal, the NABIC 542L features top-guided copper alloy components, a chrome vanadium spring, and PTFE-to-metal seating. O-ring seals provide excellent pressure tightness at both the cover and cap joints. Available enhancements include stainless steel springs, high-pressure versions, and a Viton seat design. All NABIC Valves come with an industry-leading five-year guarantee, ensuring reliable performance and peace of mind.

Specifications

Sizes: 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1.1/4" (DN32), 1.1/2" (DN40), 2" (DN50), 2.1/2" (DN65), 3" (DN80) Connections: Female BSP Inlet x Female BSP Outlet Materials: Gunmetal Body, Chrome Vanadium Spring, PTFE to Metal Seating Set Pressure: 1.0 to 10.5 Barg (DN15 to DN25), 0.3 to 10.5 Barg (DN32 to DN80) Temperature Range: -20°C to 195°C Max Note: We set and test the valves to your required set pressure prior to shipping.

The CONCOA 302 Series is a four-port, chrome-plated brass, single-stage cylinder regulator designed for primary pressure control of high-purity, non-corrosive, or liquefied gases. Single-stage regulation is recommended for cylinders under 500 PSIG (34 BAR) or applications where minor outlet pressure fluctuations from cylinder depletion are acceptable, or where inlet pressure is stable.

Features:

• 316L stainless steel diaphragm prevents inboard diffusion

• CAPSULE® seat with 360° integral filtration

• Field-adjustable pressure limit for flexible applications

• Rear panel mounting simplifies installation

• Helium leak-tested for integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR); optional 3500 PSIG (240 BAR) or 4500 PSIG (310 BAR)

• Body: Chrome-plated brass barstock; Bonnet: Chrome-plated die-cast zinc

• Gauges: 2" (50 mm) plated case

• Seats: PTFE; PCTFE for higher-pressure options

• Filter: 10-micron sintered bronze

• Temperature range: -40°F to 140°F (-40°C to 60°C)

• Cv: 0.1; Diaphragm: 316L stainless steel

• Helium leak integrity: 1 × 10⁻⁸ scc/sec

• Internal seals: PTFE; Ports: 1/4" FNPT

• Compliance: Meets/exceeds CGA G-4.1, ANSI/ASME B40.1, PED 2014/68/EU, CRN OH5216

The CONCOA 426 Series two-port stainless steel regulator provides secondary pressure control for ultra-high purity and corrosive gases, ideal for point-of-use applications. Rated to 4500 PSIG (310 BAR), it ensures safe operation with high-pressure cylinders. Features include metal-to-metal diaphragm seal, CAPSULE® 360° filtration, cleanroom assembly, front/rear panel mounting, and helium leak-verified integrity. Specs: PCTFE seat, 10 µm 316 stainless steel filter, Cv 0.1, -40°F to 140°F (-40°C to 60°C), 1/4 in FNPT ports. Conforms to CGA G-4.1, ANSI/ASME B40.1, PED 2014/68/EU, CRN OH5216.