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Air Driven Pumps and Boosters
Comparison of Pneumatics to Hydraulics
https://en.wikipedia.org/wiki/Pneumatics#Comparison_to_hydraulics

Both pneumatics and hydraulics are applications of fluid power. Pneumatics uses an easily compressible gas such as air or a suitable pure gas—while hydraulics uses relatively incompressible liquid media such as oil. Most industrial pneumatic applications use pressures of about 80 to 100 pounds per square inch (550 to 690 kPa). Hydraulics applications commonly use from 1,000 to 5,000 psi (6.9 to 34.5 MPa), but specialized applications may exceed 10,000 psi (69 MPa).[citation needed].
Advantages of pneumatics
  • Simplicity of design and control—Machines are easily designed using standard cylinders and other components, and operate via simple on-off control.
  • Reliability—Pneumatic systems generally have long operating lives and require little maintenance. Because gas is compressible, equipment is less subject to shock damage. Gas absorbs excessive force, whereas fluid in hydraulics directly transfers force. Compressed gas can be stored, so machines still run for a while if electrical power is lost.
  • Safety—There is a very low chance of fire compared to hydraulic oil. Newer machines are usually overload safe.
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Advantages of hydraulics
  • Liquid does not absorb any of the supplied energy.
  • Capable of moving much higher loads and providing much higher forces due to the incompressibility.
  • The hydraulic working fluid is basically incompressible, leading to a minimum of spring action. When hydraulic fluid flow is stopped, the slightest motion of the load releases the pressure on the load; there is no need to "bleed off" pressurized air to release the pressure on the load.
  • Highly responsive compared to pneumatics.
  • Supply more power than pneumatics.
  • Can also do many purposes at one time: lubrication, cooling and power transmission.
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Leading with Quality, Performance and Cost
 Our partners, the HYDRAULICS INTERNATIONA(HII), is one top Professional Hydraulic Pneumatic Conjugations and Integrations equipment manufacturer and integrated solution supplier.
HII has over 30 years history of cutting edge support equipment ingenuity and new product technology innovation in three main business units:

  • Defense/Aviation/Commercial Ground and Engineering Support Equipment Systems.
  • Gas and Liquid Extraction Pumps/Pneumatic driven liquid pump/Gas booster/Amplifier systems.
  • Flow metering/analyzing/totalizing systems.

HII is one of the few companies having total self sufficiency in design and manufacture of the systems and components required for its’ business units. Ongoing research and development in all areas has improved operation, quality, and functionality of the business unit products and systems.

Compressed Gas and Liquid Extraction Pumps & Boosters
 
Designed for subcritical and supercritical BOTANICAL OIL extraction utilizing gases and liquids such as :
CO2, Ethyl Alcohol, Ethanol, Propane, Butane / Iso-butane, Dimethyl Ether, R134a and other refrigerant gases.

Pharmaceutical Industrial Extraction of Herbal Medicines
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Food Industry Coffee, tea, hops, herbs & spices, flavors, antioxidants
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  De-oiling of pressed cakes
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Cosmetic Industry Active ingredients for cosmeceutical applications
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Other applications Cleaning of corks
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BUTANE & PROPANE EXTRACTION PUMPS
 Low-Pressure, High Flow, Oil Free
These units are designed for subcritical and supercritical Botanical Oil extraction using Butane & Propane. It consists of a large area double acting drive piston directly connected, through a high pressure seal and bearings, to a double acting or 2-stage boost piston. The drive section includes a spool type directional control valve and poppet type pilot valves to allow automatically reciprocate when compressed air (or a suitable gas) is applied to the drive port. Drive exhaust is routed to a muffler which is positioned near the finned gas section to enhance cooling.
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Air Driven Liquid Pumps
 Why use Air Driven Liquid Pumps
 • Hydraulic pressure is held without energy consumption.
• Explosion proof ... requires no electrical power or connections.
• Intrinsically safe.
• Compact, lightweight and weatherproof.
• Easy to adapt automatic controls.
• Contamination tolerant.
• Outlet stall pressure pre-determined by the air drive regulator.
• High pressure capability - up to 80,000 psi.
• Ideal for stop-start applications under full load.
• Easy to install and operate.

Typical applications
• Hydrostatic testing
• Clamping-Pressing-Releasing
• Valve actuation
• Portable hydraulic tools
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Air Driven Boosters
Features:
 • Separation between drive and gas section uses three dynamic seals with dual vents.
• Air drive line lubrication not required.
• Rugged soft-seat, high-flow check valves in gas section(s).
• Only hydrocarbon-free stainless steel, bronze, PTFE and Viton gas section internal parts exposed to gas flow.
• Heat of compression reduced for long seal life because cold exhaust air surrounds gas barrel(s) inside cooling sleeve(s) (see Figure 1, Item 4 above).
• Standard trim is weatherproof and suitable for offshore service.
Typical Applications:
• Pressure Testing Piping and Hardware for Leakage: e.g., oil field, refinery, aircraft, automotive, instrumentation using gases.
• Gas Injection: chemical process, plastic forming.
• Gas Scavenging: collecting costly gas in partially used cylinders and transferring it into high pressure receiver(s) for further use.
• Life Support Gas Transfer and Charging: e.g., oxygen, helium, breathing air, diving, fire fighting/hazmat, aircrew.
• Compressed Natural Gas (CNG) Boosting for vehicle refueling stations.
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Air Driven Air Pressure Amplifiers
Features:
• Compact: installs off the floor, out of the way, in any position.
• 2 connections: plant air in, amplified air out. (Pilot air connection is optional for start-stop control with a PCV valve or solenoid valve and pressure switch.)
• Can replace a dedicated air compressor: 10 HP size in a typical large plant spot requirement for 100 PSI when only 80 PSI is available. (Model 5A-DS-2)
• Replace bottled nitrogen: up to 700 PSI (48.3 BAR) for air testing, lab or production. (Model 5A-DS-5 & 7A-DS-8)
Typical applications:
• Valve actuators
• Air starters
• Bin vibrators
• Pneumatic drill motors
• Air clamps
• Air brakes
• Off road tires
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Electric Driven Boosters
Series 2G Electric Driven Booster package is ideal for filling or topping off low-pressure and high-pressure bottles. Its two-stage and double acting design uses NO Belts or Pulleys, making it the quietest Electric Driven Booster in its class; only 60 dBA. Air cooled with its integrated cooling fan reducing the heat of compression for long seal life.
 OXYGEN GAS BOOSTER
AUTHORIZED FOR NAVY USE (ANU)
50% INCREASE IN BOTTLE FILLS & ELIMINATES CASCADING
STANDARD EQUIPMENT:
 • Automatic stop & restart high pressure limit control FACTORY pre-set to 3000-psig (adjustable)• Automatic stop & restart low pressure limit control FACTORY pre-set to 250-psig (adjustable)• Manual start & stop switch
 • Safety relief valve set @ 3200-psi
 • Gas inlet pressure reducing regulator to control safe fill rates
 • Bypass line with on/off valve (needle type)
 • O2 cleaned to MIL-STD 1330D with certification
 • Double acting configuration
 • Inlet & outlet pressure gauges (calibrated with certs)
 • Hour meter with 6-digits
 • Sealed ball bearings
 • Inlet & outlet 5-micron filters
 • Outlet and bleed valves (needle type)
 • Air cooled 
 OPTIONAL EQUIPMENT:
 • Dual outlet pressure control
 • Inlet & outlet hose kits
 • Remote start/stop switch
with 6-foot cord
 • Four (4) port outlet manifold
 • 2-stage configurations
 • Gas inlet & outlet Quick Couplings (QD)
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High Pressure Components
 PRESSURE RELIEF VALVES
PILOT CUTOFF VALVES, High Pressure, Low Flow
These valves are direct operated, differential poppet, dry spring chamber design. All ports can accept full working pressure permitting their use also as a sequence valve or back pressure controller regulator (BPR). Wetted alloys are stainless steel. Dynamic seals are UHMWPE. Static seals are Buna. Optional: Viton add-V. EPR add-E. Wrench flats are standard on adjusting screws.*  
 PILOT CUTOFF VALVES
 Sense Liquid or Gas Pressures. Provide Air Signal.
These valves perform a function similar to a pressure switch. The sensing piston or plunger movement is spring or air adjusted. When the sensed pressure is reached, a small, integral air valve shifts position cutting off, or providing, a pilot air signal. Useful for start/stop control of various pneumatically piloted devices such as HII pumps, valves and boosters. Maximum air valve pressure is 120 PSI. Sensing section alloys are stainless steel. Buna static seal standard, optional: Viton add-V, EPR add -E. (e.g. PCV-E002E)  
 UNLOADING VALVES
Normally Open, Normally Closed, Air Pilot Actuated.
These valves open or close high pressure oil or plain water back to tank or to another line or high pressure gas to another line. High pressure section alloys are stainless steel with stainless steel ball or poppet design. 
 INLINE CHECK VALVES, 316 STAINLESS STEEL BODIES
High Pressure. These valves are 316 S.S. ball type and soft seat (PTFE ring) in the 1/4 NPT, 1/2 NPT, 3/4 NPT, and 1 NPT sizes; Brass poppet on S.S. seat in the 2 NPT size. Control springs hold approximately 3 PSI. Optional higher pressure springs are available in the 2” NPT unit only. 
 AIR OPERATED ON / OFF VALVE
This air operated valve opens and closes high pressure liquid or gas connection. Balanced poppet, piston actuated, normally open, bubble tight design assures high reliability. Minimum actuation is a 30-PSI and Maximum is a 150-PSI. Constructed of 316-SS with a Cv = 0.75 
 INTENSIFIER ASSEMBLY 10:1 AREA RATIO
Model IA100K3 is rated to 100,000 PSI output with a displacement of 3 cu. in./cycle. It can be used to intensify any liquid or gas compatible with 15-5 PH SS, BUNA-N and polyurethane. Minimum inlet pressures are 1500 PSI liquid; 5000 PSI gas.
The drive section consumes approx. 34 cu. in./cycle and can accept plain water or petroleum based hydraulic oil to 10,000PSI. Cycle rate should be limited to 2 cpm depending on the application.
GAS RECEIVERS
High Pressure. These units are normally used at the outlet of an HII Gas Booster or system to store a volume of gas for smooth, intermittent release through a pressure reducing valve.
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Package Systems
Air Driven Gas Boosters
Low Pressure, High Flow, Oil-Free
For Use With:
Liquified gases at ambient temperature(both phases)
Vaporizers off cryogenic tanks
Instrument air (or plant air) 

Air Driven Standard System Packages
Standard Liquid Pump Packages
Standard Gas Booster Packages
Standard Air Pressure Amplifier Packages
Custom Units

Gas Booster Package Systems
Sport Diving
Fire Departments
Paintball
GENERAL AVIATION 

High-Pressure Breathing Air Systems
For Municipal or Industrial Fire Departments that operate multi-stage
mechanical air compressors with purification and storage cylinders
Applications for HII Products  

Automotive/Forklifts
•    Mechanical Press Overload Systems in Automotive Body Plants
 •    QDC (Quick Die Change) Clamping systems
 •    Testing of Fuel Injectors
 •    CNG Natural Gas Refueling systems
 •    Hydrogen Gas Refueling systems
 •    Airbag Inflation Charging Systems
•    Hose and Radiator Pressure Testing
•    Air Conditioning Charging and Leak Detection
•    Brake System Testing
•    LPG Recovery and Charging 


Airline & Aerospace 
•    Oxygen Life Support Charging
•    Escape Chute Charging –Co2 Charging
•    Aircraft Jacking
•    Helium Leak Pressure Testing
•    Missile Test Systems
•    Fire Protection
•    Pressure Testing of Hydraulic systems - Skydrol
•    Gas charging for aircraft tire inflation
•    Accumulator Charging on Landing Gear, (suspension) 

Cannabis
•    Supercritical and subcritical Botanical oil extraction
•    CO2 gas & liquid extraction 

Defense - Air
•    Operation of Aircraft Jacks
•    Aircraft Seat Ejection – CO2  cylinder charging
•    Charging of Oxygen Life Support Cylinders
•    Charging of Helicopter Pop Floats
•    Fire Prevention Systems 

Defense - Land
•    Gun Recoil – Tanks
•    Gas Suspension – Tanks
•    Tank Jacking Systems
•    Missile Launch Leveling
•    Armaments Manufacture – Testing
•    Argon Cooling on Infrared Systems – Missiles, Night Sights etc 

Defense - Sea 
•    Life Support Cylinder Charging
•    Gun Recoil
•    Gun Turret Leveling
•    Engine Bolt Tensioning
•    Boiler Testing

Electronics & Computer Industry 
•    Wafer Washing
•    Chip Dicing and Sawing
•    Gas Purging 

Fire, Health & Safety
•    Stretch Testing & Charging Fire Extinguisher Cylinders
•    Breathing Air Cylinder Charging
•    Rescue Tools - Operation of Jaws of Life
•    Oxygen Generation Systems – PSA Systems for Remote Field Hospitals (MASH) 

General Manufacturing
•    Pressure Testing of Valves, Hoses, Pipes, Gauges, Pressure Vessels etc
•    Water-Jet Cutting and Blasting
•    Autofrettage of High Pressure Components
•    Gas Cylinder Filling and Charging
•    Pressure Gauge Calibration
•    Operating Hydraulic Jacks
•    Tire Curing Presses
•    Filter Presses
•    Accumulator Charging
•    Powering Crimping and Riveting Tools
•    Bolt Tensioning
•    Wire Forming
•    Isostatic Presses

Laboratory, University & Research 
•    Liquid CO2 Chromatography
•    Supercritical Extraction
•    Homogenizing
•    Geological Testing 

Machine Tool
•    Roller Tensioning
•    Hydraulic and Pneumatic actuation of cylinders
•    Clamping
•    Lube and Coolant spraying
•    Machine Tool Flushing
•    Gun drilling – Machining Centers
•    Machine Tool Counter Balance accumulator charging
•    QDC Clamping
•    Laser Cutting 

Mining & Tunneling 

•    Setting of Hydraulic Mine Props
•    Drilling Dust Suppression
•    Rock Bursting Tools
•    Fire Prevention
•    Testing of Roof Support Systems
•    Oxygen Charging of Life Support Bottles
•    Tunnel Shield Operation 

Oil & Gas
•    Wellhead Control Panels
•    Chemical Injection
•    Blowout Preventers
•    Wire Line Lubrication
•    Pressure Testing of Valves, pipelines, hoses, cylinders, accumulators, pressure vessels and components
•    Valve Actuation
•    Subsurface Safety Valve Control
•    Diesel Engine Air Start Systems 

Paintball
•    CO2 filling paintball bottles
•    Air or Nitrogen filling bottles to 5500 psi 

Plastics
•    Gas Assisted Injection Molding
•    P.E.T Blow Molding
•    Injection of Blowing Agents
•    Air Sleeves – Plastic Printing 

Power & Energy 
•    Valve Actuation
•    Nitrogen and SF6 Charging and Recovery Systems – Circuit Breakers
•    Boiler and Heat Exchange Pressure Testing
•    Heat Exchanger Tube Swaging systems
•    Boiler Descaling
•    Live Wire Crimping tools 

Railroad
•    Hub Pulling – Bearing Removal
•    Bolt Tensioning
•    Wheel Lubrication
•    Air Conditioning Testing and CFC Recovery
•    Ballast Dump Carts
•    Engine Air star-up systems 

Recreational Sports
•    Filling and Charging Scuba Dive Bottles
•    Oxygen and Nitrox Dive Cylinder filling and charging
•    Stretch Testing Cylinders
•    Paint Gun Cylinder charging
•    Charging Nitrous Oxide Bottles

 

 

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