Gas filter-regulator IFR3

compressed airfor industrial applicationsstainless steel

Product overview
IMI Maxseal IFR3 & IFR4 stainless steel filter/regulators for critical applications requiring precision and reliability. Designed for high-flow industrial compressed air and gas systems; suitable for one-time installation. Available with multiple port sizes (1/4 NPT, 1/2 NPT) and optional ISO G ports. ATEX certified (Non‑Electrical); NACE compliance available as an option. Options include various pressure ranges, filter elements and manual or automatic drain.

Key features

• 316 stainless steel body
• Precision pressure regulation; outlet range 0.5–10 bar
• High flow capability; maximum working pressure 17 bar
• Port sizes: 1/4 NPT, 1/2 NPT (optional ISO G)
• Filter elements: 5 µm and 50 µm (standard 40–50 µm)
• Operating temperature: -55 °C to 90 °C (also referenced -30 °C to +90 °C)
• Manual or automatic drain options
• ATEX certified (Non‑Electrical); NACE optional
• Relief port diameter: 2 mm

Specifications
Filter element (µm): 5, 50
Ambient temperature (°C): -55 to 90
Seal material: NBR
Body material: Stainless steel 316
Port size (in): 0.25 to 0.5
Maximum working pressure (barg): 17
Maximum set pressure (barg): 16
Loading: Spring loaded
Type: Filter regulator
Certification: ATEX (Non‑Electrical)
Fluid types: Gas / compressed air

Technical details

• Model designation: IFR3 & IFR4
• Materials: 316 stainless steel body; NBR seals
• Available ports: 1/4 NPT, 1/2 NPT (0.25–0.5 in); optional ISO G
• Filter options: 5 µm, 50 µm (standard 40–50 µm)
• Max working pressure: 17 barg; max set pressure: 16 barg
• Outlet adjustment range: 0.5–10 bar
• Operating temperature: -55 °C to 90 °C (documentation also references -30 °C to +90 °C)
• Drain: manual or automatic
• Loading: spring loaded
• Certification: ATEX (Non‑Electrical); NACE optional
• Relief port: 2 mm diameter
• Application: gas/compressed air systems for critical, high-flow industrial use