SC Hydraulic Engineering Corporation

L7 High Flow Liquid Pump

General Product Information
- HIGH FLOW CAPACITY
  DOUBLE ACTING, DOUBLE AIR MOTOR
  COMPATIBLE WITH MOST FLUIDS
  STAINLESS STEEL WETTED PARTS
  AIR OPERATED - NO ELECTRICITY NEEDED
  PRESSURE UP TO 21,500 PSI
  
  The SC L7 Series pump has a 7" diameter air drive section and stainless steel wetted parts in the hydraulic section. This double acting pump is equipped with a double air motor drive section that roughly doubles the liquid outlet pressure compared to an equivalent single air motor design. It is capable of hydraulic pressures up to 21,500-psi at 100-psi drive air pressure.
  
  This pump is ideal for high flow at relatively high pressure applications. Nominal outlet flow ranges between 0.5-gpm to 2-gpm depending on outlet pressure. Maximum air consumption is approximately 225-SCFM at free flow (zero output pressure).
  
  It is designed to operate with air drive pressures between 15-psi and 100-psi under normal conditions. Typical applications include choke control operation, hydrostatic pressure testing and press applications.
Applications
- Hydrostatic pressure testing
  High flow power units
  Blowout preventer (BOP) systems
  Sub-sea valve controls
  Choke control operations
  Bolt tensioing

Dimensions

Dash Number	Actual Ratio	Max. Outlet Pressure (100 psig Air Supply)	Displacement Per Cycle Cu. In.	Connection Ports NPT
Dash Number	Actual Ratio	Max. Outlet Pressure (100 psig Air Supply)	Displacement Per Cycle Cu. In.	A Inlet	B Outlet
-70	85:1	8,000	7.8	1 1/4" NPT	1/2" NPT
-120	135:1	13,000	4.7	1 1/4" NPT	13/16-16*
-200	227:1	21,500	2.8	1 1/4" NPT	13/16-16*

*Coned and threaded connection for 9/16" OD tube

Ordering

TABLE 1	Pump Series Designation
L7	7" Bore Drive Air Motor Pump

TABLE 3	Hydraulic Section Seals
0	UHMWPE/Buna-N
V	UHMWPE/Viton®
E	UHMWPE/EPR (Ethylene Propylene)

TABLE 4	Modifications
0	No modification

TABLE 5	Hydraulic Section Material
S	Stainless Steel

TABLE 7	Suffix Modifications
BLANK	No modification (Remote Pilot Included)
M014	Counter Port, 5/8-18 UNF-2B Thd

Additional modifications may be included with an "M" suffix at the end of the model number.

Modifications

Remote Pilot: This option provides a 1/8" NPT female port for remotely controlling the start/stop of the pump by connecting an external air signal to actuate the air cycling valve. This modification is built in as standard and no special number is needed when ordering.
M014 - Counter Port: This option provides a 5/8-18-UNF thread port on the air motor section of the pump for installing a mechanical cycle counter.