High Pressure Pumps – G series

  • single acting
  • single air drive head
  • Pressures to 4,500 bar (65,295 psi)

MAXIMATOR pumps G series are available as single or double acting with either a single or double air drive head. For air drive pressures of 1 bar (14.5 psi) minimum to 10 bar (145 psi) maximum. The unregulated pilot port on all G pumps not only provides better pressure control but is also the ideal place to install control instrumentation because of its small size, 1/8 BSP.

G pumps

  • single acting
  • single air drive head
  • Pressures to 4,500 bar (65,295 psi)

G pumps have stainless steel bodies and plungers. All G pumps have polyurethan seals. For strictly water service, UHMWPE seal option is recommended. This seal is an option because the standard polyurethane seal provides significantly better service life in non-straight water applications. G pumps come standard with bottom inlet. Side inlet is available as option. Model G500(S) is only available with side inlet.

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.
Typei *¹⁾Displ. Vol. ¹⁾
/cm³
Displ. Vol. ¹⁾
/in³
P max. (*)
bar
P max. (*)
psi
Flow
cfm
Flow
l/min
G101:1190,005,4911015950,6518,53
G151:1662,003,7816023200,4512,86
G251:2835:302,1528040600,257,24
G351:4024,501,5040058000,185,02
G601:6315,400,9463091350,113,21
G1001:1138,800,541050152250,061,81
G1501:1516,600,401450210250,051,36
G2501:2653,800,232650384250,030,77
G3001:3143,200,203140455300,020,65
G4001:3892,500,154000580000,020,51
G5001:5191,900,124500652500,010,39

i = Pressure ratio
P. max = Discharge
1) Numerical