Niezgodka Type 21 Safety Valve

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 CONCOA 315 Series is a chrome-plated brass, dual-stage cylinder regulator designed for inert and non-corrosive gases in medical laboratory applications. Its two-stage design ensures stable outlet pressure or flow by compensating for gradual cylinder pressure drops. The regulator provides point-of-use control across five pressure ranges, from 0–15 PSIG (0–2 BAR) to 0–200 PSIG (0–14 BAR). It comes with a standard 2–15 lpm flowgauge calibrated for CO₂ (for lasers and cell growth chambers) or a custom thermal mass flowmeter-calibrated gauge for specific gases. While suitable for medical lab use, it is not intended for therapeutic use in humans.

Features:

• Field-adjustable pressure limit for application flexibility

• 316L stainless steel diaphragm prevents inboard diffusion

• CAPSULE® seat design with 360° integral filtration in both stages

• Helium leak-tested for integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR)

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

• Gauges: 2" (50 mm) plated case

• Seats: PCTFE (first stage), PTFE (second stage)

• Filter: 10-micron sintered bronze

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

• Diaphragm: 316L stainless steel; Cv: 0.1

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

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

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

### Product Specification **Sizes Available**: 1/2”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2”, 2 1/2”, 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 **Mediums Supported**: Steam, Gases, and Liquids **Set Pressure Range**: 0.2 to 16 Barg (depending on size) **Temperature Tolerance**: -50 to 100 °C **Design Notes**: The specified temperature range applies to valves featuring a metal disk. For reliable performance in various applications, our valves are crafted from high-quality stainless steel and are suitable for a range of mediums including steam and liquids. With multiple size and connection options, these valves are designed to meet diverse operational requirements while ensuring compliance with industry standards. Choose our durable and efficient valves for superior functionality in your system.