The General Pump EP1812S17 / T991 is a T Series 50 triplex plunger pump that is mainly designed for high-pressure washing applications and general cleaning applications. The T991 triplex plunger pump has unitized stainless steel K01 inlet and outlet valves, solid ceramic plungers with constantly lubricated packings, a forged brass manifold, and a standard 24mm solid shaft for mounting to pulleys. Flex coupling and bell housing are available for direct drive to provide you with easy assembly and reliability. The oil-bath crankcase has die cast, anodized aluminum construction and a 15.2 ounce capacity. Note: For lubrication, you must fill the crankcase to the very top of the oil gauge window with non-detergent SAE 30W oil. Change the oil after a 40 hr. break-in-period, and then every 3 months or 500 hr. intervals afterward. 

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