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High-Pressure Air Driven Liquid Pump 6 hp Series

  • Choice of 10 models, 4 ratios, 20 possible combinations
  • Output pressures to 10,000 psi (690 bar)
  • Flow rates to 21 gpm (80 l/min)
  • Choice of wetted materials
  • Single air head – double acting
  • Drive pressure 3 to 125 psi (.2 to 9 bar)
  • All hydraulic fluids, water (plain or DI), solvents

The 6 hp model is optimized for high flow at moderate to high pressures, making it well suited for flushing, circulation, pressure supply, and production‑level hydraulic applications. Its double‑acting design delivers consistent output, while multiple configuration paths allow users to prioritize either flow or pressure depending on system needs.

Key Features

  • Choice of 10 models, 4 ratios, 20 possible combinations
  • Output pressures to 10,000 psi (690 bar)
  • Flow rates to 21 gpm (80 l/min)
  • Choice of wetted materials
  • Single air head – double acting
  • Drive pressure 3 to 125 psi (.2 to 9 bar)
  • All hydraulic fluids, water (plain or DI), solvents

 

 

Max Air

 

Air Head

 

Power

Pump Model Code

Ratio Dash no.

Actual Area Ratio

Maximum Rated Output Pressure

Displacement/Cycle

Maximum Flow

Continuous

Intermittent

psi

bar

psi

bar

cu in

ml

cu in/min

l/min

 

 

125 psi/8.6 bar

 

 

Single

 

 

6 hp

GWD, GSFD, DGSFD, DGSTVD

-12

14.8

1850

128

4000

276

15.9

260

5009

82.1

GWD, GSFD, DGSFD, DGSTVD

-35
-60
-100

40.3
69
115

4375
7500
8000

302
517
552

4375
7500
10000

302
517
690

6.0
3.5
2.1

98
57
34

1890
1103
662

31.0
18.2
10.8

 

MODEL

WETTED MATERIALS

NON METALLICS

PUMP SECTION

PLUNGERS

GW

Nickel Plated Steel, SS & Bronze

Hard chrome plated 15.5PH SS

Urethane, Buna N, PTFE

GSF

All SS & Bronze

Hard chrome plated 15.5PH SS

UHMWPE, Viton, PTFE, Ryton

DGSF

Separation- All SS & Bronze

Hard chrome plated 15.5PH SS

UHMWPE, Viton, PTFE, Ryton

DGSTV

Separation- All SS & Bronze

Hard chrome plated 15.5PH SS

 Viton, PTFE, Ryton

GWD

Nickel Plated Steel & SS

 15.5PH SS Hard chrome plate optional

 Urethane, Buna N, PTFE

GSFD

All SS & Bronze

 15.5PH SS Hard chrome plate optional

 UHMWPE, Buena N, PTFE, Ryton

DGFD

Separation- Nickel Plated Steel & SS

 15.5PH SS Hard chrome plate optional

 UHMWPE, Viton, PTFE, Ryton

DGSFD

Separation- All SS & Bronze

 15.5PH SS Hard chrome plate optional

UHMWPE, Viton, PTFE, Ryton

DGSTVD

Separation- All SS & Bronze

17.4PH SS Hard chrome plate optional

PTFE, Viton

 

Configure seal kits or search parts in seconds

To assist in easier pump selection, we have classified various popular liquids in groups and assigned to each group a service code. These service code numbers are featured in the chart to the right and are designated for each pump series. Seals and other wetted materials can be supplied to suit your preferred liquid. For advice, please contact our technical services personnel at 818-843-4000.

Service Codes

1 - Petroleum-based oils, kerosene, ethylene glycol, water with 5% soluble oil.

2 - Plain water, diesel fuel.

3 - Most phosphate ester-based hydraulic e.g. Pydraul, Lindol, Cellulube, Fyrquel, and Houghtosafe 1120 and petroleum-based solvents compatible with UHMWPE (Ultra-high Molecular Weight Polyethylene) dynamic seals and Viton static seals.

4 - Petroleum-based solvents, e.g. aromatic hydrocarbons (benzene, toluene, xylene, hylene, etc.); chlorinated solvents (trichlorethylene, carbon tetrachloride, chlorobenzine, etc.); mercaptans, Dowtherm A, solvents etc.); Dowtherm E, plus all of Group 3 and some mildly corrosive acids compatible with wetted materials. See note 5A for service with methyl-ethyl-ketone, methyl acetone, diacetone, alcohol and freon 22.

5 - Skydrol and Aerosafe hydraulic acetone and some alcohols (ethyl, methyl, and isopropyl). 5A. Also suitable for these if Viton static seals are replaced with EPR; specify number 51331 (no extra charge); e.g., 51331-MDTV-5. Most phosphate ester-based solidify at approximately 30000 psi.

6 - Deionized water; demineralized water.

6-hp-services

To pick the best option for your application, reach out to us

Access the data sheet, installation manual or other technical documents you need by using our Technical Resources Finder. Simply apply the filters or type your query into the search field to locate the right document.