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Structure

UPM type

Part name 1 Pump casing 2 Partitioning plate 3 Rear plate 4 Main impeller 5 Water-air separating impeller 6 Return passage 7 Stuffing box	Part name 8 Bearing bracket 9 Gland 10 Gland packing 11 Air suction and exhaust case 12 Air suction and exhaust valve plate 13 Ball bearing 14 Vacuum pump impeller	Part name 15 Discharge valve case 16 Discharge valve rubber ball 17 Shaft 18 Air suction valve 19 Air suction pipe 20 Pressure pipe

Combination with vacuum pump
	Vacuum pump built-in type (UPM10-S, UPM10-N) The main volute pump and the vacuum pump are installed on the same axis. Colorless, odorless, harmless edible oil is used as circulating liquid in the vacuum pump. Circulating liquid should be supplemented when it is under the marked level on the level gauge. Install a check valve on the discharge pipe to prevent suction of air from the discharge side when the pump is first started. UPM10-0510S is equipped with a discharge ball valve (check valve) as a standard accessory, so the pump can be used by simply connecting hoses.
	Vacuum pump mounted/separate types (UPS-N) The vacuum pump is separated from the main volute pump (mounted type and separate type). Ordinary water (city water and industrial water) can be used as circulating liquid in the vacuum pump (except S02 type). Circulating liquid should be supplemented when it is under the marked level on the level gauge. Fill with circulating liquid up to the level above the vacuum pump's axis when starting the pump for the first time. Install a check valve on the discharge pipe to prevent suction of air from the discharge side when the pump is first started. It is possible to change the capacity of the vacuum pump if the pumping liquid contains much air or the intake piping is long. Circulating liquid may discharge from the supply tank. This is not a malfunction and is caused by any of the following reasons. 1. Too much circulating liquid: Lower it to the level gauge position. 2. Circulating liquid is removed by the air: The circulating liquid discharge amount will decrease as the exhaust air amount decreases.

Using this enhanced self-priming method, numerous kinds of transport equipment using suction pumping can be accomplished.

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