rotary screw air compressors, Dallas rotary screw air compressors, rotary screw air compressor service,

The Rotary Screw Air Compressor

The rotary screw air compressor produces an ongoing movement to generate power.For certain heavy-duty industrial operations, or a facility that needs to keep running their compressor 24/7 365 days a year, a piston compressor is considered insufficient. In order to get the pressure intensity needed for complex pneumatic and other high-powered tools, you will need to consider buying a rotary screw air compressor.

In a rotary screw compressor, air is compressed with a meshing pair of rotors. As the screws move in rotation, fluids gets sucked in, compressed and ejected. 

So, how does an oil injected rotary screw compressor work?

AIR

The outside air is sucked in by the screw element (air-end) through the air inlet filter. The inlet filter makes sure that all the dust and dirt stays outside.

Load and unload control

Before the air enters the screw element, it passed the inlet valve or unloader valve. This valve opens and closes the air supply to the screw element.

When it’s open, the compressor is in ‘loaded’ condition:
When the valve is closed, is shuts off the air supply to the compressor element: the motor and screw element are turning, but the compressor is not sucking any air in and is not pumping any air to the system.

H&K PUMP

WHAT DOES THE screw compressor element DO?

When the inlet/unloader valve is open, the air enters the compressor screw element.
The screw element works like a pump and it compressed the air. During this process, oil is injected in the element. The oil is there to cool the air, as the air gets very hot during compression. 

Compressed air/oil mixture

This mixture leaves the screw element through a one-way valve. This valve makes sure that the oil cannot flow back into the compressor element through the exit pipe.

WHAT IS THE PURPOSE OF THE OIL SEPARATOR?

It's job is to basically separate the oil and the air through the separator tank. Most of the oil is separated from the compressed air by centrifugal force . The remaining oil is separated by the separator element which looks exactly like a big filter.


The air with oil flows through the separator element and separates the oil from the compressed air. The separated oil is collected at the bottom of the separator and is removed by the scavenge line. It sucks the collected oil back to the compressor element.

WHAT IS THE MINIMUM PRESSURE VALVE?

The minimum pressure valve is a spring-loaded valve that opens at a certain pressure, about 2.5 bar. The minimum pressure valve makes sure that there is always a minimum pressure inside the compressor

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The after cooler

The compressed air is still very hot, consequently the compressed air is now cooled by the after cooler before it leaves the compressor. The air temperature after the cooler is around 25 – 40 degrees Celsius.
Because of the cooling down of the air, a lot of water vapor has condensed against the inside of the after cooler. This water is carried with the compressed air towards the air outlet of the compressor.

Moisture trap

The condenstate trap (moisture trap) basically separates the water from the compressed air. The water is drained through a small hose.

Oil flow

The oil is cooled by the oil cooler. The amount of cooling is controlled by a thermostatic valve. If the oil is still cold, the oil cooler is completely by-passed. If the oil is very hot, all the oil is led through the oil cooler. 

The Oil filter

Finally, the oil flows through the oil filter. The oil filters removes all the dirt and dust that has collected in the oil.

Dallas air compressor service, Fort Worth air compressor repair, Dallas air compressor pump service

DALLAS, FORT WORTH AIR COMPRESSOR SALES AND SERVICE

214-428-2868

Air Compressor Sales, Repairs, and Services

When air compressors at your facility begin to malfunction, you’re likely to encounter a lot of problems. Faulty machines can halt your operations and cost you thousands of dollars in lost productivity and labor. Prevent future complications when you turn to H&K Pump in Dallas, Texas!  We fix air compressors and pumps for all brands on the market today.

Services and Parts

Our company services all air compressors of all brands. We diagnose and resolve any problem right away for your convenience. Our team is also experienced in preventive maintenance services.

Some of our clients include companies in the aerospace, mining, and forestry industries, as well as the following:

• Food Manufacturers
• Industrial Plants
• Automotive Facilities
• Paint and Body Shops
• Machine Shops
• Metal Manufacturers
• Dry Cleaners
• Food Factories
• Paper Mills
• 18-Wheelers

             air compressor service

• Concrete Plants
• Recycling Plants
• Scrap Yards
• CNC Machine Companies
• Dallas Independent School District (DISD)
• Dallas County Fire Department
• Jails
• Fire Control Systems
• AC Units
• Packaging Companies

😃

www.hkaircompressors.com

We are also the distributor of FS-Curtis and Champion products in Dallas and surrounding areas. In addition, we have more than 75,000 different SKU numbers (parts) in inventory and can ship anywhere in the Continental USA.

For the past 45 years, H&K Pump has serviced thousands of happy and loyal customers.  Not only do we service and repair air compressors, pumps, motors, refrigerated air dryers, valve replacement, bearings, crankshafts, tanks, flywheels, etc., but we also stock pressure switches, check valves, safety valves, gaskets, copper, filters, oil, etc. etc.  If you need it, we have it in stock or can order it from our warehouse. 

www.hkaircompressors.com

We take pride in knowing how to properly diagnose and fix:

Ingersoll Rand air compressors and pumps

Quincy air compressors and pumps

Le Roi air compressors and pumps

Jenny air compressors and pumps

Champion air compressors and pumps

Emglo air compressors and pumps

Norm-Air air compressors and pumps

air compressor pumps, how to fix an air compressor pump, air compressor pump service

AIR COMPRESSOR PUMP SERVICE AND REPAIR

Like a small internal combustion engine (SIMILAR TO YOUR CAR), a conventional piston compressor has a crankshaft, a connecting rod and piston, a cylinder and a valve head. The crankshaft is driven by either an electric motor or a gas engine. While there are small models that are comprised of just the pump and motor, most compressors have an air tank to hold a quantity of air within a preset pressure range. This compressed air in the tank drives the air tools, and the motor turns on and off automatically to maintain pressure in the tank.

air compressor pump service

At the top of the cylinder, you'll find a valve head that holds the inlet and discharge valves. (Don't worry about knowing which is which, let the experts at H&K PUMP check it out and give you an estimate to either fix it or replace it).   Now, as the piston moves down, a vacuum is created above it. This allows outside air at atmospheric pressure to push open the inlet valve and fill the area above the piston. As the piston moves up, the air above it compresses, holds the inlet valve shut and pushes the discharge valve open. The air moves from the discharge port to the tank. With each stroke, more air enters the tank and the pressure rises.

WHAT DOES IT TAKE TO REBUILD AN AIR COMPRESSOR PUMP?

Rebuilding an air compressor pump takes a lot of time, a lot of tools, and a lot of parts.  To properly break down an air compressor pump and diagnose the problem may take anywhere from 1 to 2 hours of time.  A myriad of issues may come to your attention like: the bearings are busted; or the crankshaft front housing seal is leaking; or the piston rods have dug into the crankshaft and won't move freely.  Take a look at the pictures below and decide if you want to try this yourself or if you want the experts at H&K to repair it for you.

Remember, if you decide to try it yourself, here are just a few tools that you will need:

1. impact tools, wrenches and sockets, hammers, lock ring pliers, punches,  benches, and screwdrivers

2. an air compressor

3. a vice

4. a press

5. a torch

6. wire

7. a test stand

8. oil

9. pressure tester

10. grease/ lubricant

in total, you should have around $7K - 10K dollars just in tools and equipment in order to disassemble and rebuild your air compressor pump...

WHAT DOES IT COST TO REBUILD MY PUMP?

The cost to rebuild a pump varies from one machine to another.  It typically takes anywhere from 1 to 2 hours to completely break down the machine and determine what the issues are.  To do it right, you should remove and replace your bearings; replace all the seals; replace all the gaskets; replace all the rings on both the high and low pressure pistons; replace the valves along with the valve gaskets; hone the cylinders and change out the oil.  This process with removing and pressing in the bearings and cleaning up the machine; reattaching all the lines and testing the machine on a test stand can and will take anywhere from 5-8 hours depending on the size and complexity of your pump.  The average cost to completely rebuild a 5-10 HP pump is anywhere from $500 - $1,500 dollars and will take between 2-5 business days to rebuild.  If done correctly, it should last you for decades to come.

www.hkaircompressors.com

LIST OF AIR COMPRESSORS, BEST AIR COMPRESSORS

www.hkaircompressors.com

AIR COMPRESSOR MANUFACTURERS

AIR COMPRESSOR COMPANIES

CALL: 214-428-2868

Atlas Copco

BE

BelAire

Black Bull

California Air Tools

Campbell Hausfeld

Campbell Hausfeld Commercial

CEJN

Chicago Pneumatic

Coleman Cable

COOL

Craftsman

CURTIS

Cyclone Manufacturing

DeWalt

Eagle

EMAX

Florida Pneumatic

Freeman

FS-Curtis

Great Neck

Hitachi

Husky

Industrial Air

Industrial Air Contractor

Ingersoll Rand

Iron Horse

Jenny

JET Tools

Legacy

Magic Air

Makita

MAXair

Maxus

Mi-T-M

Oasis Manufacturing

Parker

Porter Cable

Powerex

Powermate

ProForce

Pulsar

Puma

Quincy

RapidAir

Rockford

Rolair

Scepter

Schrader

Schulz

Seafoam

Senco

SFA Companies Inc.

Slime

SMC

Snap-on

SPRAYIT

Sta-Bil

Steuby Manufacturing

Sullair

Sunex Tools

TruFuel

Tsunami

VIAIR

IN THE DALLAS, FORT WORTH AREA: CONTACT H&K PUMP OR VISIT THEIR SITE AT:

WWW.HKAIRCOMPRESSORS.COM

H&K PUMP

Campbell Hausfeld www.campbellhausfeld.net	Makita www.makita.com
CURTIS www.hkaircompressors.com Craftsman www.craftsman.com	Maxus www.maxustools.com
DeWalt www.dewalt.com	Porter-Cable www.portercable.com
Emglo www.emglocompressor.com	Ridgid www.ridgid.com
Grex www.grexusa.com	Rol-Air www.rolair.net
Grizzly www.grizzly.com	Senco www.senco.com
Hitachi www.hitachipowertools.com	Stanley-Bostitch www.bostitch.com
Ingersoll-Rand www.ingersollrand.com	Thomas www.thomasairpac.com
Jenny Air Compressor www.jennyproductsinc.com

FOR SALES AND SERVICE ON HEAVY DUTY AIR COMPRESSORS, CONTACT H&K PUMP.

214-428-2868

hkaircompressors@gmail.com

Curtis Simplex & Duplex CA Series Electric & Gas air compressors, curtis ca series air compressors

www.hkaircompressors.com

Curtis Simplex & Duplex CA Series Electric & Gas air compressors 

Curtis CA series air compressors

For automotive, light industrial and other challenging applications, CA Series compressors are built to last. Components are selected based on durability and performance, ensuring that your CA Series compressor delivers reliable performance in demanding applications. Precision-machined components and a dedication to materials of construction that are meant for real world working conditions further assure long-term durability.

CA Series Features At a Glance
The Most Durable Pump Construction Available – Meticulous Material Selection Ensures Long-Term Reliability.
• 100% cast-iron cylinders and cylinder heads
• Long-lasting, corrosion-resistant crankshaft
• Reduces thermal stress for increased reliability
• Deep-finned cast-iron cylinders and cylinder head for cool operation
• Slow-turning pump increases pump life
Industrial Design – The Most Robust Reciprocating Air Compressor In Its Class
• Provides higher pressures, better efficiency and longer life
• Ready to handle rugged, heavy-duty applications
Quality Components – For Extended Product Life And Continuous Performance.
• Industrial-grade main roller bearings are precision fit for support of all rotating parts
• High-flow, heavy-duty stainless-steel valve system delivers more cfm per horsepower
• Robust intercooler increases compressor efficiency
• Metal intake filter/silencer is superior to plastic
• Heavy-duty stamped-steel belt guard
• Suction valve head unloaders for continuous running air compressors

Curtis Simplex & Duplex Serie CA Compresores de aire de dos etapas montados en tanque y eléctricos y de gas
Para aplicaciones automotrices, industriales ligeras y otras aplicaciones desafiadoras, los compresores de la serie CA están diseñados para durar. Los componentes se seleccionan en función de la durabilidad y el rendimiento, asegurándose de que el compresor de la serie CA ofrece un rendimiento fiable en aplicaciones exigentes. Los componentes mecanizados con precisión y una dedicación a los materiales de construcción que están diseñados para las condiciones de trabajo del mundo real aseguran una durabilidad a largo plazo.
Características de la serie CA Presentación
La construcción de bomba más duradera disponible - Selección de material meticulosa asegura fiabilidad a largo plazo.
• Cilindros y culatas de hierro fundido 100%
• Cigüeñal de larga duración resistente a la corrosión
• Reduce el estrés térmico para una mayor fiabilidad
• Cilindros de fundición de aletas profundas y cabezal de cilindros para un funcionamiento fresco
• La bomba de giro lento aumenta la vida de la bomba
Industrial Design - el compresor de aire alternativo más robusto en su clase
• Proporciona mayores presiones, mayor eficiencia y vida útil más larga
• Listo para manejar aplicaciones robustas y resistentes
Componentes de calidad: para una vida útil prolongada y un rendimiento continuo.
• Los rodamientos de rodillos principales de grado industrial son de precisión para el soporte de todas las piezas giratorias
• El sistema de válvulas de acero inoxidable de alto flujo y de alta resistencia ofrece más cfm por caballo de fuerza
• El intercooler robusto aumenta la eficiencia del compresor
• El filtro / silenciador de entrada de metal es superior al plástico
• Protector de cinturón de acero estampado resistente
• Descargadores de la cabeza de succión para compresores de aire de funcionamiento continuo

Curtis Duplex CA Series Electric 5-10hp Two Stage Reciprocating Tank Mount Air Compressors

Duplex compressors are ideal when there are varying demand levels during operation. By alternating demand across two pumps, a duplex compressor also delivers longer pump life. The redundant pumps ensure you’ll always have air, eliminating maintenance downtime.
• Alternator control panel comes mounted with magnetic motor starters and thermal overload protection
• Compressors alternate during normal operation
• Both compressors run when system demands
• Duplex design reduces electrical cost and eliminates downtime
• Factory oil filled

Curtis Duplex CA Series Eléctrico 5-10hp Dos etapas Reciprocating Tank Mount Compresores de Aire
Los compresores dúplex son ideales cuando hay diferentes niveles de demanda durante el funcionamiento. Al alternar la demanda entre dos bombas, un compresor dúplex también ofrece una vida útil más larga de la bomba. Las bombas redundantes aseguran que siempre tendrás aire, eliminando el tiempo de inactividad del mantenimiento.
• El panel de control del alternador viene montado con arrancadores de motor magnéticos y protección contra sobrecarga térmica
• Los compresores se alternan durante el funcionamiento normal
• Ambos compresores funcionan cuando el sistema exige
• El diseño dúplex reduce el costo eléctrico y elimina el tiempo de inactividad
• Lleno de aceite de fábrica

Curtis CA Series Gas-driven Two Stage Reciprocating Tank Mount Air Compressors

Gas-driven
Gas-driven models are ideal for applications that require air when electricity isn’t readily available. FS-Curtis gas-driven models are perfect for fleet and service applications.
• Choose between Kohler or Honda engines
• OSHA-approved totally enclosed metal belt guard
• ASME-approved air receiver
• 12V DC starter with alternator
• Engine idle control

Serie Curtis CA Compresores de aire de dos etapas montados en depósitos de gas
Impulsado por gas
Los modelos accionados por gas son ideales para aplicaciones que requieren aire cuando la electricidad no está disponible. Los modelos a gas de FS-Curtis son perfectos para aplicaciones de flota y servicio.
• Elija entre los motores Kohler o Honda
• Protector de cinturón de metal totalmente cerrado aprobado por OSHA
• Receptor de aire aprobado por ASME
• Arrancador de 12V DC con alternador
• Control de ralentí del motor