End Suction Centrifugal Pumps

The GH is our horizontal, end suction pump series for handling water, oils, and chemicals in marine, process, and general industrial applications. Hydraulic performance extends to 2,500 GPM and is covered by twenty-eight sizes in cast iron, bronze fitted, 316 SS fitted, and all 316 SS construction.

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Available as either a frame mounted (GHF) or close coupled (GHC) unit, the GH is based on the same product platform as our vertical pumps and shares many of the same parts with them.

For added simplicity, the entire series is covered by only three bearing frames and can be had in whole pump or modular kit form. The GHC is fully compatible with standard, off-the shelf NEMA JP frame motors, and all models feature a back pull-out design, removable suction covers, and casings rotatable in 90° increments for different field piping orientations.

Other common features for the GH include 316 SS shaft sleeves, keyed impellers to prevent accidental spin off, dynamic balancing to ISO G2.5 guidelines, and regreasable bearings secured with locking rings as standard. These features combine to produce shaft deflection values so low that they actually exceed the requirements of ANSI B73.1M-1991 and overall, provide some of the most efficient hydraulics in the industry.

Common options for the GH include replaceable wear rings, cartridge seals, and flush plans. Along with these, higher alloy material options such as Ni-Al-Br and CD4MCuN and a full range of motor and baseplate choices are also available.


Flows To

2,500 US GPM

570 m3/hr
Heads To

520 ft.

160 m
Efficiencies To


Solids To


32 mm
Power To

150 HP

110 KW
Speed Up To

3,550 RPM

Hydraulic Coverage


Standard Materials of Construction

Design Data



ANSI flat face cast iron or 316 stainless steel flanges for all sizes equal or greater than 2″ discharge.


Wear Rings

Replaceable 17-4PH stainless steel wear rings with all enclosed impeller, 316 SS models.



High efficiency design in cast iron, bronze or 316 stainless steel.


Casing Drains

Heavy walled casing with vent and drains for easier maintenance.


Keyed Impellers



Standard Mechanical Seal



Back Pull Out Design

Allows removal of rotating elements and replacement of the shaft, impeller, or mechanical seal without disturbing system piping.


Positively Locked Bearings

Oversized, greased lubricated ball bearings secured by lock nuts eliminate axial movement at the faces and impeller to casing clearances.


Bearing Frame

Heavy duty, thick walled cast iron frame supports bearings with rigid rear foot for less vibration, assuring the assembly stays in alignment.



Large diameter shafts with replaceable 316 SS shaft sleeves.



GH Brochure

2001 (436 KB)

Technical Manuals

GH Series -IOM (1 MB) Download
GH Series Techbook - (15 MB) Download

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