Air driven

Air Driven Hydraulic Pumps, Gas Boosters, Power Units, Specialty Valves & Accessories
L & LS SERIES

Sprague Products
®
Division of Curtiss-Wright Flow Control Corporation

TABLE OF CONTENTS
Page SPRAGUE PRODUCTS AIR DRIVEN HYDRAULIC PUMPS FEATURES & BENEFITS ............................................................................... 3 HOW THE S-216-J AIR DRIVEN PUMP WORKS.......................................... 4 TYPICAL CIRCUITS ..................................................................................... 5 HOW TO ORDER PUMPS-MODEL PART NUMBER CODING ........................ 6 PUMP RATIO SELECTION CHART ............................................................... 7 S-216-J STANDARD HYDRAULIC PUMP ..................................................... 8HYDRAULIC POWER UNITS ...................................................................... 10 HIGH PRESSURE HAND PUMP ................................................................. 11 NON-CONTAMINATING PUMPS ................................................................ 12 AIR DRIVEN, DOUBLE-ACTING HYDRAULIC PUMPS ................................ 14 AIR DRIVEN, DOUBLE-ACTING HYDRAULIC POWER UNITS.................... 16 S-218-GJC PUMP ...................................................................................... 17 HOW SPRAGUE PRODUCTS GAS BOOSTERS WORK ............................... 19 GAS BOOSTER SELECTION ....................................................................... 21 GAS BOOSTERS ........................................................................................23 GAS BOOSTER POWER UNITS .................................................................. 24 OVERHAUL KITS ....................................................................................... 25 SPECIALTY VALVES ................................................................................... 27 ACCESSORIES........................................................................................... 29 GENERAL INFORMATION .......................................................................... 31

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SPRAGUE PRODUCTS AIR DRIVEN HYDRAULIC PUMPS
A variety of hydraulic pumps is offered for various liquid output pressure up to 33,500 psi (2311 bar). Sprague Products pumps service water, oil and most corrosive chemicals, and are rugged, service-proven and virtuallymaintenance-free. The Sprague Products positive-displacement type pump converts air inlet pressure to hydraulic output pressure. The pump uses low pressure air to act on a large area piston to produce high hydraulic pressure with a small area piston. In operation, the pump reciprocates rapidly until the system liquid pressure nears the desired level, then slows to a stop when the liquid pressure equals orbalances the air pressure. This liquid-air pressure balance is maintained indefinitely in a holding condition with minimal energy consumption and with no increase in fluid temperature or parts movement. In contrast, a motor driven pump in a holding condition must continue to operate to maintain a pressure level. Excess liquid must be bypassed or recirculated back to the reservoir, resulting in energyloss, heat build-up, and the need for bypass components and a larger reservoir. The Sprague Products pump is efficient in operation and simple in design. Compared to other types of hydraulic pumps, it provides cost effective and energy saving benefits for many industrial and research applications.

S-216-J-( )
STANDARD PUMP

HYDROSTATIC TESTING APPLICATIONS
The Sprague Products air drivenpump offers economical advantages for the pressure testing of hoses, pipes, valves, fittings and other hydraulic vessels and products. The timesaving and performance advantages offered by these pumps allow routine production testing to be converted from tedious hand-pump methods to automatic and precision testing methods.

NO NEED FOR CENTRAL POWER SOURCE
Because Sprague Products air driven...