Double acting | Single air drive head | Pressures up to 1,450 bar (21,025 psi)

The Maximator G-D Series High Pressure Pumps are air-driven, double-acting pumps with a single air drive head. Compared to single-acting G Series pumps, they generate less pulsation and deliver approximately 50% more flow, making them highly efficient for demanding ultra-high pressure applications.

Designed with stainless steel wetted parts and optional seal packages, the G-D Series is suitable for use with oil, water, and special media. These pumps automatically stop at the pre-set pressure, holding without further energy consumption or heat build-up.

Backed by German engineering and local Australian stock, service and system integration, the G-D Series ensures reliability and availability for mission-critical operations. All models can be fully integrated into Maximator Australia’s custom turn-key high-pressure test systems.

Applications include:

• Hydrostatic pressure testing of valves, vessels, hoses, cylinders, gauges and aerospace components
• Burst and cycle fatigue testing
• Calibration of pressure gauges and transducers
• Water jet cutting and cleaning
• Leak testing of industrial and energy systems
• Emergency shutdown systems for oil & gas wells
• Pressurisation of accumulators
• Operation and control of well service and wellhead equipment

G…D Pumps

• Double acting
• Single air drive head
• Pressures to 4,500 bar (65,250 psi)

G…D pumps are double acting, single air drive head. They are characterised by the same features as the G pumps single acting, single air drive head types, but they have less pulsations and deliver approx. 50 % more flow.

G…D pumps are available with polyurethane seals, UHMWPE seals with Viton O-ring for water use are available as option. Models G10D – G35D come standard with bottom inlet, side inlet is available as option. Models G60D(S) – G150D(S) are only available with side inlet. For air drive pressures of 14.5 psi (1 bar) minimum to 145 psi (10 bar) maximum.

Options for G Series

• Seal material for oil use (standard pump): Order code: G35 – (L)
• Seal material for water use: (not available for G500 and G500-2) Order code: G35 – (L)VE / G37D – VE
• Special seal material to handle special fluids: Order code: See fluid compatibility guide
• Side inlet (G500, G500-2 and G60 – G150 come standard with side inlet) Order code: G35(L) – S / G35(D)VE – S
• Special inlet and outlet ports (i. e. NPT): Order code: G35 – NPT
• Air control unit for G series with filter pressure regulator, control pressure gauge and shut-off valve: Order code: G35(L) with C2
• To protect the pump against excessive outlet pressures, an air safety valve can be fitted to the air control unit: Order code: G35(L) with C2/SVair (The outlet pressure has to be indicated.)
• Other options available on request.

P max. = Discharge
** Please note: Click on Pump Type for Technical Data Sheets and Drawings pdf