25HP 4 CYLINDER 2 STAGE AIR COMPRESSOR PUMP
25HP 4 CYLINDER 2 STAGE AIR COMPRESSOR PUMP
This is usable air or free air at pressure 175 PSI. This pump can go to 200 PSI, but even though the compressor will go to a higher pressure, you should run it at the lowest pressure possible to maintain the air pressure needed. This will give you a higher CFM at a lower pressure and the compressor will run cooler with less compressor wear. This is true with any compressor on the market. Lower pressure combined with lower RPM will give you great results and a compressor that will last for many years. If you are looking for a 20 to 30-year compressor pump, this is the one for you. This pump runs COUNTER CLOCKWISE rotation as you are looking at the compressor fan or flywheel. This pump runs at a SUPER slow RPM of 800. It can be slowed down to 600 RPMs and run with a TRUE 20 HP motor. Minimum RPM on this pump is 550. The dimensions on this pump are. 31.5 D x 34W x 25 H. The bolt pattern centerline to each hole is. 12.5 D x 13 W. The reason this pump is so tough, is it is a 4-cylinder, or V-4, design. This pump is heavy industrial and SUPER quiet 82 dba. This pump DOES NOT have reed valves. It has a concentric ring valve design. Concentric ring valves have been around for over 150 years. We have not gone away from this design because it will last for many, many years to come. If you look at the competition, they all offer reed valves or finger valves, but both are the same thing, just called different by some manufacturers. No matter what they are called, reed valves are a cheap design. With this unit, if you want to clean your valves, intake, or exhaust, you can take the valves out of the cylinder head by unbolting the valve retainer and just pull the valve right out of the head to inspect it. It is sealed with an aluminum washer under the valve seatno head gasket to fool with when removing valves. Easy & Quick to take in and out! This pump is all cast iron. (not aluminum) that is what we mean. It has solid cast iron cylinder, cylinder heads, crankcase, flywheel, crank, and forged steel connecting rods not aluminum! 99% of the pumps you see on the market today have aluminum rods. This style rod does not come close to a forged steel rod. This pump has large Timken-Style roller bearing on the crank ends on each end of the crankshaft. This ensures good crank stability and long compressor bearing life. Each cylinder is all cast iron with no sleeves or aluminum. All cast iron prevents cylinder distortion and egg-shaped cylinders when pump gets hot. This pump has 3 B-Section belt drive. Many of the pumps you see on the market have one beltthis is twin belt. Twin belt ensures better belt gripage and longer belt life. This pump has head unloaders. This is very nice for continuous run applications such as gasoline driven or electric driven high duty cycle applications. Head unloaders are an air cylinder in each head. When air is applied to them, they open or push the intake valves open allowing the pump to go into a free wheel mode. The cylinders are still moving in a free wheel mode, but it cannot compress the air because the intake valve is held open. This pulls cool air into the cylinder. The cool air absorbs the heat in the pump and blows it back out the intake valve. This is nice when you are sandblasting, etc. Under heavy duty cycles. This pump has a site glass to view your oil level. NO START-UP KIT REQUIRED!! This unit comes filled with oil and has filters on the unit. Weight on this unit is 800 lbs. Best of all, this pump is. When you hear this unit run, it will be music to your ears and you will like it when it starts instead of hating it when it starts. The item “25HP 4 CYLINDER 2 STAGE AIR COMPRESSOR PUMP” is in sale since Friday, January 15, 2016. This item is in the category “Home & Garden\Tools\Air Compressors”. The seller is “ultrasharpcookware” and is located in Newbury Park, California. This item can’t be shipped, the buyer must pick up the item.
- Brand: POLAR AIR
- MPN: Does Not Apply
- Country/Region of Manufacture: United States