7L-DD-70 high-pressure, high-capacity pump

High-pressure, high-capacity pump 7L-DD-70 for hydraulic testing of high volume vessels, reactors, bodies of equipment

HII pump model 7L-DD-70 technical data

Liquid pump model 7L-DD-70 - specifications
Parameter	Value
Outlet pressure	70 - 724 bar / 7.0 - 72.4 MPa - operating range
Drive type	pneumatic, double air drive section
Pump section type	double acting, single piston
Area ratio	70
Volume displacement per cycle	127.8 ml/cycle
Flow rate / Test piece prefill speed	up to 23 l/min - maximum value 0 - 6.4 l/min - operating range
Pressure build speed in a prefilled test piece	up to 5470 bar×l/s - maximum value 0 - 1520 bar×l/s - operating range
Air drive pressure	10.3 bar - maximum value 5 - 10 bar - recommended range 1 bar - minimum required value
Inlet pressure	2 - 4 bar - recommended range free flow / moderate vacuum / self-prime - minimum value
Air Drive Temperature limitations	up to + 65 °С - maximum value -3°С ... +3°С - recommended dew point -12 °С - minimum value

Liquid pump model 7L-DD-70 - materials and connections
Hydraulic body	15-5 PH
Hydraulic plunger	15-5 PH
Inlet check valve	15-5 PH
Outlet check valve	316 SS
Static O-rings	BUNA-N - basic model; Viton - modifications
Plunger seal	UHMWPE
Inlet liquid port	1-1/4" NPT
Outlet liquid port	1/2" NPT
Air drive port	3/4" NPT

Plain water, water with Water with soluble oil, water with water with corrosion inhibitors;
Distilled, Deionized water;
Hydraulic Fluid - Petroleum, Water, or Veg. Oil Based
Industrial oils, hydraulic oils, aviation oils, mineral oils, synthetic oils
Hydraulic fluid - skydrol or brake fluids;
Hydrocarbons, solvents;
antifreeze, ethylene glycol, non-freezing liquids;
High purity liquids;
Explosive and fire-hazardous liquids;
Chemically active, aggressive liquids.

Please specify the modification when ordering the pump for the pumped liquid and operating conditions.