High Pressure Cleaning Company's High pressure cleaning pump This is the part of the pressure washer that receives water from the hose and pumps it into the tip at high pressure. You'll see several common types of pumps in commercial and home-style machines. All high pressure wash pumps have pistons and valves similar to gas engines or air compressors. On some pumps, the piston is driven by a swash plate (wobble plate), while in other cases the piston is driven by the crankshaft. Crankshaft driven pumps are generally better made and last longer. Pressure washer pumps are equipped with a bypass valve, so when you release the trigger or the tip becomes clogged, the water will bypass and return to the inlet side of the pump. If left in this mode for longer than the manufacturer recommends, the water will heat up and damage the pump. On air-operated pressure washers, the pump includes a thermal relief valve that dumps hot water into the bypass loop. Most bypass valves are adjustable so you can turn down the pressure when cleaning sensitive materials The pump life expectancy of low-cost pressure washers is very low—some as low as 60 to 100 hours. When shopping for a pressure washer, make sure you understand the life expectancy of the pump. If the information isn't available, keep it clear as the manufacturer most likely doesn't want you to know how low it is. Another very important factor to consider is the availability of parts. For more product-related information, please click: Air Tools Supplier our website:https://www.zjzmtools.com/ our website:https://www.zjzmtools.com/product/washer-and-washer-pump/high-pressure-cleaner/...