SC Hydraulic Engineering 10-6 & D6 Liquid Pump

SC Hydraulic Engineering 10-6 & D6 Liquid Pump
SC Hydraulic Engineering 10-6 & D6 Liquid Pump

SC Hydraulic Engineering 10-6 & D6 Liquid Pump is a leading manufacturer and designer of an ever growing line of high pressure, air-driven liquid pumps, as well as air and gas boosters which are being used in a variety of industries and applications.

Growing since 1953, we offer liquid pressures as high as 65,000 psig and can exceed 17,000 psig in gas pressures.

General Product Information


10-6 & D6 Series pumps have a 7″ diameter air piston and a 2 1/2″ stroke. Thirteen models are available with pressures up to 65,000 psig.

When operating from 0 to rated hydraulic pressure, air consumption will be approximately 56 scfm of free air at 100 psi output. At lower air pressures and higher hydraulic pressures air consumption will be reduced proportionately to flow rates indicated.

Mounting may be in any position, vertical preferred. When mounting in an inverted position, a drain cock should be provided to drain off any liquid that may accumulate in the pilot valve air chamber.

The D6 Series “Dry Lube” pump is identical to the 10-6 Series except it is pre-lubricated and therefore does not require an air line lubricator. The part number distinguishes it from the 10-6 Series by the D6 prefix and using the actual ratio rather than a numerical code in the model suffix.


Metal forming
Static and burst testing
Hydraulic Press operation
Flow testing requiring relatively low flows at high pressures
Applications requiring extreme intermittent pressure and velocity commonly associated with water blasting and jetting.
Model No.Maximum Material Rated Gas Supply Pressure (Ps)Maximum Material Rated Gas Outlet Pressure (Po)A Inlet Port B Outlet PortStatic Outlet Stall PressureMinimum Inlet Gas Pressure (Ps)Displacement Per Stroke (in3 per cycle)
GB-D30691/4″ NPT60 Pa200 psig (13 bar)3.1
410 bar620 bar1/4″ NPT
GB-D75620,000 psig9/16″-18 (1)150 Pa250 psig (17 bar)1.2

(1) Coned and threaded high pressure connection for 1/4″ O.D. tubing.
(2) Maximum allowed working pressure for oxygen service boosters: 5,000-psi max.
(3) Maximum allowed working pressure for hydrogen service boosters : 6,000-psi max.
(4) Oxygen & hydrogen service boosters not available on all models. Contact factory for more information.

Refer to corresponding gas booster performance curve for operating pressures. Maximum material rated outlet pressures can be reached under special operating conditions. Do not use air drive and/or gas supply pressures that equate to higher outlet pressures than those “maximum material rated outlet pressures” shown on table. Refer to Static Outlet Stall Pressure formula shown on table (for example, for gas booster model GBD-30 the formula is: Static Outlet Stall Pressure = 30*Pa+Ps). Maximum recommended air drive operating pressure: 100-psi. Maximum rated air drive pressure: 150-psi (only for static outlet stall pressure).


schydraulic-gas booster ordering

TABLE 1Gas Booster Series (1)
GBSingle Stage
TABLE 2Modification
BlankNo Modification
M402Remote Pilot
3EPR O-rings, Polyurethane Main Seal
TABLE 3Cylinder Modification
BlankSingle Head
TABLE 4Pressure Ratio Single or First Stage
TABLE 5Pressure Ratio Second Stage
BlankN/A on GB Series
TABLE 6Service Option
2Oxygen Service (2)
H2Hydrogen Service (2)
Notes :(1) Do not fill gap on a two digit description
(2) Not available on GBD-D75, GBT-D15/75 and GBT-D30/75 models. Contact factory for more information.

Performance Chart

Performance Chart
Performance Chart


A Models : These models utilize dual seals in the hydraulic assembly with a bleed-off between the seals to atmosphere, thus providing a visual indication of hydraulic seal leakage. Used where contamination of the air motor from the hydraulic fluid being pumped is objectionable.

B Models : The “B” models have a bottom inlet connection for convenient tank top installation or alternate mounting configuration.

C Models :The “C” Models utilize PTFE chevron packing in the hydraulic assembly for ultimate performance when other packing material is not compatible with the fluid used or because of extreme temperature conditions. The “A” modification is included on all “C” models and the check valves have PTFE o-rings.

H Models : The “H” Models utilize special packing in the hydraulic assembly for maximum performance where hydraulic fluid media is contaminated with foreign matter, thus providing for a much greater life expectancy from the hydraulic seals than with standard o-ring seals. The “A” modification is included on all “H” models and the check valves have PTFE o-rings.

K Models : This models utilize a special air piston in the air motor assembly which decreases the stroke of the pump, thus minimizing the internal forces and increasing air motor life. Used in applications exhibiting rapid pressure losses, such as burst testing.

R Models : The “R” Models are furnished with an isolator attachment which prevents the hydraulic piston retracting into the air motor during operation, thus providing for 100% non-contamination of the hydraulic assembly from the air motor. The isolator also acts as a heat barrier.

Read more : SC Hydraulic Engineering GB Series Gas Booster Single Stage

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