G1D Series Single-Stage Double-Acting Air-Driven Gas Booster

CDI-G1D series are single-stage double-acting air-driven gas boosters powered by compressed air. The double-head structure requires pre-charged inlet gas pressure to reach rated high output pressure. All models share the same net weight of 19.5kg. Compatible with air, nitrogen, oxygen, CO₂, hydrogen, rare inert gases, refrigerants and most industrial process gases, widely used for medium & high-pressure gas charging, pressure maintaining and air tightness test with low flow demand.

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Core Advantage

Double-acting dual-cylinder design delivers higher flow and smoother pressure output than single-acting boosters.
Pre-set minimum inlet gas pressure is required for each model to achieve max rated outlet pressure.
Full pneumatic drive without motor, intrinsically safe for flammable & explosive gas compression environments.
Standard output pressure formula: \(P_B\)=Ratio×\(P_L\)+\(P_A\), convenient for quick selection calculation.
Uniform overall dimension & weight (19.5kg), unified drive port G1/2 for easy installation.
Optional customized seals: oil-free seal for oxygen service, FFKM seal for corrosive aggressive gases.

Application

Leakage & burst pressure testing for valves, pipeline fittings, pressure vessels and gas cylinders.
High-pressure gas filling for autoclaves, accumulators, specialty gas cylinders and injection molding nitrogen charging.
Instrument calibration: safety valve testing, communication cable pressurization and high-precision gauge pressure supply.
New energy & special industry: supercritical CO₂ extraction, hydrogen/nitrogen pressure retention test, aerospace component high-pressure leak inspection..

Technical Specifications

CDI Model	Boost Ratio	Min Inlet PA(bar)	Min Inlet PA(psi)	Max Inlet PA(bar)	Max Inlet PA(psi)	Max Rated Outlet PB(bar)	Max Rated Outlet PB(psi)	Drive Port	Gas Inlet	Gas Outlet	Max Flow(L/min, PL=6bar)
CDI-G1D-10	10:1	5	72.5	80	1160	80	1160	G1/2	NPT3/8	NPT3/8	372(PA=20bar)
CDI-G1D-25	25:1	10	145	200	2900	200	2900	G1/2	NPT1/4	NPT1/4	154(PA=20bar)
CDI-G1D-40	40:1	15	217.5	320	4640	320	4640	G1/2	NPT1/4	NPT1/4	92(PA=20bar)
CDI-G1D-60	60:1	25	362.5	480	6960	480	6960	G1/2	NPT1/4	NPT1/4	115(PA=40bar)
CDI-G1D-100	100:1	35	507.5	800	11600	800	11600	G1/2	NPT1/4	M14×1.5	74(PA=40bar)

Optional Customization & Accessories

Custom Seals: Oil-free oxygen compatible seal (suffix -O2), FFKM corrosive-resistant seal for aggressive gas media
Optional Parts: High-pressure gauge, pressure regulating valve, high-pressure buffer tank, inlet/outlet filter and pre-assembled skid-mounted booster package

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