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Sprague

SPRAGUE AIR DRIVEN PUMPS

HIGH PRESSURE HYDRAULIC PUMPS

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Sprague offers a variety of air driven pumps designs, each with specific pressure ranges and design configurations to meet the demands of the high pressure pump market.  Additional options available: seal options with the severe service JB seal, non-lube air-drive seals, separation, and manual operation.

The Sprague positive-displacement pump converts air-drive pressure into hydraulic discharge pressure.  The pump uses low pressure air or gas to drive a large area piston, which then drives a small area liquid piston that produces high hydraulic pressure.  As the ratio between the air drive piston and the liquid piston increases, higher pressures can be achieved.

In operation, the Sprague pump reciprocates rapidly until the system’s liquid pressure nears the desired level, as determined by the air regulator setting, and then slows to a stop when the liquid discharge and air-drive forces reach equilibrium.  This liquid-air balance is maintained indefinitely in a holding condition with minimal energy consumption and with no increase in fluid temperature or parts movement.  The pump will automatically restart if the liquid discharge pressure degrades or the inlet air-drive pressure is increased.

The Sprague pump is an efficient, time tested design that provides users with cost-effective and energy-saving benefits.

S-216-J J-PUMP

  • 36,500 psi, 11 ratios
  • Options:seperation, seal, non-lube

P4 – POWERSTAR 4 PUMP

  • 33,300 psi 10 ratios, modular design
  • options: seperation, seal, double

MANUALLY OPERATED PUMP

  • pressures to 17,400 psi
  • seal and pump options

HIGH FLOW AIR DRIVEN PUMPS

  • Double ended to 20,000 psi, 2.5 GPM
  • Double acting to 6,500 psi, 10 GPM

SM-3 MINI PUMP

  • 25,900 psi, 8 ratios, aluminum
  • options: SS, manual, port locations

S-216-J J-PUMP

The air-driven J pump is efficient in operation and has a reliable and energy efficient design, providing cost effective savings benefits for many industrial and research applications.

S-216-JThe air driven pumps are non-arcing and non-sparking, and can be used safely in confined areas. When compared to other air driven pumps, Sprague Products pumps do the same job, but with fewer parts and seals for easy maintenance.

The Sprague air driven pump delivers high pressure liquids, required by production machinery. Applications include: hydrostatic testing of hose, pipe, tubing, pressure gauges, cylinders, transducers, valves, tools, tanks, pressure vessels and leak testing; hydraulic operations such as punch and pin presses, clamping devices, chucks and valve actuation; tooling and tightening functions such as bolt tensioning and torque wrenches; and lifting tables, beam jacking, and aircraft jacking.

  • Suitable for water, oil and a wide range of liquids
  • Easily maintained, non-electric control
  • 6″ air drive motor with snap action pilot valve
  • All stainless wetted section, nitrile standard
  • Dim: 10” x 10” x 11”
  • Liquid seal options: Viton®, Neoprene, EPR or polyurethane
  • Air seal options: JN, JBN – lubrication not required
    • Laboratories, food service, clean rooms
  • Separation options: JS, JNS, JBS, JBNS
    • Protects air drive

J-Series

  • 6 ratios 10:1 to 100:1 nominal
  • pressures to 9,100 psig (627 bar)
  • Classic style – proven reliability
  • ½” NPT, 100 psi (7 bar) max drive air
  • 3/8 ” NPT inlet, 3/8″ NPT outlet liquid connections

JB-Series: Has peek bushing for improved seal life, easier maintenance and no metal to metal contact

  • 8 ratios 35:1 to 300:1 nominal
  • pressures to 36,500 psig (2516.6 bar)
  • Classic style – with peek bushing
  • ½” NPT, 100 psi (7 bar) max drive air
  • ¼ ” NPT inlet, ¼” HPCT outlet liquid connections

P4 – POWERSTAR 4 PUMP

One common air motor module for all eight ratios.

powerStar 4The air-driven modular Powerstar 4 pump is efficient in operation and has a reliable and energy efficient modular design. One common air motor module for all eight ratios.

  • Modular design
  • 8 ratios
  • Max output pressure to 33,500 psig
  • Easy conversion to separated (non-contaminating) configuration
  • Designed for hydrostatic testing of pressure vessels using various liquids
  • Low volume , high pressure testing
  • No lubrication required
  • All stainless steel wetted parts
  • Compatible for water and other corrosive chemicals

Available Modifications:

  • Separated configuration available
  • Double-ended unit for higher flows
  • Seal  material options

The Sprague Products patented pump system can be used to pump a wide variety of liquids to high-output pressures. It is assembled from modules, resulting in a broader product offering with reduced inventory levels. The air driven pumps are non-arcing and non-sparking, and can be used safely in confined areas. Easy assembly and service for air motor and high pressure modules. Separated pumps are widely used in the food industry.

MANUALLY OPERATED PUMP

S525 – Hand Pump J-style

Manually Operated PumpSingle-acting hand pump suitable for applications with low volumes at high pressures.

  • 4 ratios
  • Max pressure to 10,000 psig
  • Weight: 12 lbs
  • Suitable for water, oil and a wide range of chemicals
  • Stainless steel wetted parts

The Sprague Products single-acting, hand pump is suited for hydrostatic testing and other industrial applications that require low volumes at high pressures.

Option:

The S-525-JB Hand Pump has improved alignment through a new peek bushing and a polyurethane seal, which will provide improved seal life.

  • Same as S-525 Hand pump
  • 9 ratios, with a pressure range 0 – 17,400 psig
  • Suited for hydrostatic testing

SM3 – Hand Pump Mini

Manually Operated back up pump for low flow volume applications

  • 8 Ratios
  • Max output pressure to 25,900 psig
  • Dim: 8 “ x 4 “ x 5”
  • Supplied with muffler/silencer
  • 1/8” threaded port is provided in the air cylinder body as standard to separate the air drive from the liquid section.
  • Easy maintenance due to unique air valve and non bolted construction
  • No lubrication required
  • SM-3S stainless steel and SM-3A aluminum liquid ends
  • All plastic air modules

The SM-3 pump was designed for manual operation. The pump can be used as a back up to a main pump or in low flow volume lab application.

HIGH FLOW AIR DRIVEN PUMPS

High Flow PumpsSprague’s high flow air driven pumps have pressures to 20,000 psi with double ended or double acting configurations and are suitable for water, oil and chemical applications.

S-216-JD PUMP

Moves relatively large flows of liquid at low to moderate pressures

  • 4 ratios, with a pressure range 0 – 6,000 psig
  • Double Acting 6″
  • Delivers liquid with each stroke direction of the liquid piston
  • Internal check valve in liquid piston head to obtain a double-acting, steady flow of liquid
  • Designed for hydrostatic testing
  • Ideal for powering hydraulic tools
  • Seal material options

Sprague Products hydraulic double acting pumps were designed to move relatively large flows of liquid at low to moderate pressures. They deliver liquid with each forward and back stroke.

S-218-200D

High pressure liquid flows up to 2-1/2 gallons per minute

  • One Ratio
  • Double ended
  • Fewer moving parts and seals for easy maintenance
  • Designed for hydrostatic testing
  • The pump services water, oil and other compatible chemicals
  • Weight: 85
  • Dim: 28.5 “ x 10-5/8” x 12-1/2”

The Sprague Products double ended, single acting hydraulic pump produces high pressure liquid flows up to 2-1/2 gallons per minute and pressures up to 20,000 psig.

S-218-GJC PUMP

10.5 hp, double-acting, hydraulic pump

  • 2 Ratios
  • Double acting 8″
  • Max output pressure to 6000 psig
  • Weight: 85 lbs
  • Dim: 29” x 10-5/8” x 12-1/2”
  • Designed for hydrostatic testing. Machine operations and charging accumulator
  • Stainless steel and chrome-plated steel Liquid pumping section
  • Compatible with most non-abrasive liquids

The Sprague Products 10.5 hp, double-acting, hydraulic pump was designed to service oil, water and compatible chemicals. It can be used in a wide variety of temperatures and other hostile environments. Being air-driven, the pump is safe for use in confined areas.

SM-3 MINI PUMP

SM-3 Mini PumpThe air-driven SM-3 mini pump was designed for low volume and high pressure applications.

  • 8 ratios
  • Max output pressure to 22,500 psig
  • Dim: 8 “ x 4 “ x 5”
  • Supplied with muffler/silencer
  • 1/8” threaded port is provided in the air cylinder body as standard to separate the air drive from the liquid section
  • Easy maintenance due to unique air valve and non bolted construction
  • No lubrication required
  • SM-3S stainless steel and SM-3A aluminum liquid ends
  • All plastic air modules

Available Modifications:

  • Single cycle
  • Remote Pilot supply
  • Seal material options
  • Hand pump for manual operation

The single acting SM-3 pumps are supplied with stainless steel (SM-3S) or Aluminum (SM-3A) Liquid ends and all plastic air modules. Anodized aluminum bodies are for oil and non-corrosive applications. SS bodies are for aqueous and most other liquids. Feature options are: air control, remote pilot, single cycle and manual operation.