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Gas Mechanical
Gas Hydraulic
HVLP & Air Assisted Airless
Airless Parts

Accessories Airless Parts
~ Airless Parts
Sprayer Trouble? Check our Airless Sprayer Trouble Shooter Chart
Electric Sprayers by Output
.24 Magnum DX / XR5  XT 250
.29   XT290
.31 Magnum XR7   
.33   XT 330
.38 Magnum XR9 - 190es   
.42   XT 420
.47 390 Advantage 400
.54 Ultra 395 - UltraMax II 490 440 Impact
.60 UltraMax II 495  540 Impact
.70 UltraMax II 595 640 Impact / Advantage 600
.80 UltraMax II 695 740 Impact
.95 Ultra Max II 795 840 Impact
1.1 UltraMax II 1095   
1.15   Advantage 1100
1.20   1140 Impact
1.25 UltraMax II 1595  
1.30   Impact 1640

Gas Powered Sprayers by Output
.75 GMax 3400  
.85   Advantage GPX 85
1.25 GMax II 3900 PowrTwin 4900 XLT
1.3 GH 130 Advantage GPX 130
1.6 GMax II 5900 Advantage GPX 165
2.15 GH 200 PowrTwin 6900 XLT DI
2.20   Advantage GPX 220
2.35 GH 230 PowrTwin 8900 XLT
2.5    Hydra Pro IV
2.8 Roof Rig GH5030   
3.0 GH 300 - GH733   
3.15    PowrTwin 12000 XLT DI
3.3    Hydra M 4000
3.8 Roof Rig GH3640   
4.0 GH 833   
6.0 Roof Rig 2560 Hydra M 2000
7.5 Roof Rig 2075   
15 Roof Rig 1015   
About Airless Sprayers
Airless spray systems atomize coating by forcing a fluid through a small orifice at high pressure. (Think garden hose water sprayer.) They are prized for their high production rates that can exceed 2 gallons per minute for larger models.
Airless sprayers provide pressure from either a diphragm or piston pump unit driven by an electric, gasoline, or air power motors. Some models use a hydraulic driven pump powered by electricity or gasoline power. The hose is an integral part of the system. Its expansion and contraction provides volumetric cushioning of the fluid to provide steady paint flow at the tip. It also conducts static electricity build up back to the sprayer where it can be grounded.

Two things primarily determine the capacity of an airless sprayer: Horsepower and Valve Openings. Many companies use one pump on a variety of models. The difference comes from the motor and powertrain with changes in horsepower or motor type. Bigger pumps have bigger valves and bigger valves means more heavier fluids can pass through. For example, a small pump such as the Graco 395 Ultra or SprayTECH 2105 has insufficient horsepower to push elastomeric coatings. As the same pump body is put onto larger motors, its ability to pump more fluid increases because the motor can turn it faster. However, because of faster cycling, you can expect more wear than a larger capacity pump.

One of the most important rules with airless sprayers is to keep the pump clean. A dirty or rusted piston pump will quickly destroy itself by eroding its packings, rod, cylinder and or valves.

Graco sprayers are some of the best known on the market. They have a selection of pumps that fill just about every niche one can think of for spraying liquid coatings. Their recent homeowner line, the "Magnum" series is an attempt to bring piston pump sprayers to the homeowner/DIY buyer. These are different than their professional equipment because they are made with less durable materials and a sport only a single action pump. They feature some of the desirable properties of their larger brethren such as upright carts, hose reel on the handle, manifold filters etc. However, much of this is light duty from a usage point of view and these were not made for continuous use. In fact, parts for the Magnum series are limited with pump repack kits not made at all.

Stronger motors can push higher loads of paint through larger orifices and increase production for professional users. Bigger pumps with larger valves are required for heavier viscosity liquids or for fulfilling the needs of large volume users and these take bigger and bigger motors. Sprayers can be powered with electric, gasoline, hydraulic or air motors.

The professional painting contractor usually uses portable electric motor equipment but for areas where electricty may not be available such as on large warehouse projects, high rises, or new construction, gasoline power is preferred. Air motors are typically used inside factories or shop application where large compressors can keep them going without threat of fire or heat build up. Hydraulic units are actually powered by gasoline or electric motors but produce more power in a more compact design with less wear than if an equivalent electric or gas motor. Of course, the hydraulics add complexity to the overall package and cost at the time of purchase.

Specialty units include texture sprayers for application of wall finishes such as spatter coat or knockdown. These combine a specialty pump designed for heavy liquids and an air compressor to spray the material on the wall.
Airless Spray A painting system that uses high pressure to atomize coatings. It provides pressure via a diphragm or piston pump.
Diphragm Pump Diapragm pumps have a flexible plastic diapragm stretched across the pump cavity. Diapragm pumps have lower maintenance costs than piston pumps but typically less GPM.
Fine Finish Tip A fine finish tip has a double orifice to provide better atomization.
GPM Gallons Per Minute. US measure for rate of flow. Metric measures in litres per minute.
Orifice The Orifice is the opening in the spray tip. It is important to select the right orifice for the coating to be sprayed. Heavier coatings require larger openings to flow through. Thin coatings require smaller orifice sizes. Heavy coatings will clog small orifices, thin coatings will not atomize properly through large openings.
Packings Packings prevent fluid leakage. They are located around the piston in a piston pump system and also around the gun needle. Packings can be mounted on the rod or in the cylinder. Pumps with stationary packings (SprayTECH, Titan) only experience rod wear. Pumps with packings (Graco) on the rod also wear the cylinder. Packings using a V shaped spring to apply constant pressure against the pump/rod are called self adjusting (SprayTECH). Some pumps (Graco) have a nut on top of the cylinder to manually tighten the packing to prevent leaking
Piston Pump A piston pump is composed of a piston rod and a cylinder. As the piston reciprocates in the cylinder, fluid is forced through valves and into the hose. Due to all the moving parts wear items include the piston rod, valves and their seats, and (with Graco pumps) cylinders. Piston pumps can be made quite big for very high volume applications.
Slow Stroker Some pumps are referred to as slow strokers. These pumps usually have very strong motors to push a big pump. Their advantage is less pump cycling and therefore less wear.
Spray Tip The spray tip is selected depending on the coating to be sprayed. determines the fan width and can be oriented in any position from vertical to horizontal.
Spray Whip A smaller diameter hose attached at the gun approximately 3 feet long. The smaller diameter provides greater flexibilty for the operator
Throat Seal Liquid TSL is a fluid that keeps the piston lubricated as it plunges in and out of the pump. It also dissolves paint that gets on the piston rod to help prevent excess erosion of the packings.

Not all items in stock at all times. Something you need thats missing? Call 1-866-666-1935 for availability.

O-Gee Paint Co. 6995 Bird Road Miami, FL 33155 USA
Local 305-666-3300 ~ US Toll Free 866-666-1935 ~ Fax 305-666-5169

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