Low Pressure Supply Pumps

DR-50A1 (Drum type) · SH-50A1 (Siphon type)

The Low Pressure Supply Pumps series provides efficient fluid transfer for various industrial applications. The DR-50A1 (Drum type) and SH-50A1 (Siphon type) models deliver reliable performance and user-friendly operation, ensuring consistent low-pressure supply from drums or siphon sources as needed.

For Yamada Corporation: 50 type (1 x 1) inline pumps (for oil),the DR-50A1 (drum type) that can be directly connected to a 200 L drum container, and the SH-50A1 (siphon type) that can be fixed to a container, stand, or wall surface are available.

This air-powered drum pump is ideal for pumping, and pressure feeding oil from 200 L drum containers or other containers.
It can also be used for oil portioning, for supplying to hose

Pump Type	Inline type
Pump Ratio	1×1
Air Motor	50 type
Suction Tube	STKM12B
Piston Packing	Buna N (NBR)
Gland Packing	Buna N (NBR)
Suitable Materials	Oil

Features

■ Convenient for Small Portioning Work from Drum Containers

For applications such as pumping oil out of drum containers and portioning it, or injecting oil in fixed quantities, a combination oil drum pump, hose, and oil control valve is ideal.

■ Easy to Install
The oil drum pump is inserted into the 2B bung (inlet) of the drum container and secured with a bung adaptor, the hose is connected the oil outlet, and then the control valve for oil is connected to the other end of the hose.

■ Pumps from Tank by Self-suction.
When the pump is connected to compressed air and the control valve lever is pulled, oil is automatically discharged. When the lever is released, the oil discharge stops and so does the pump.

■ Flow Rate Adjustment and Cutting off the Flow at the End Point is Easy.
Allows oil to be used like water from the tap, with easy operation of a lever on the gun, allowing just the required amount to be used when needed. If longer piping is required, please install a relief valve.
*DR-50A1 includes bung adaptor (803488).

Drum type Insert the pump into a drum container, and use the bung adaptor to secure. The depth at which the pump is inserted can be adjusted up or down, by loosening the fixing screw on the adaptor.	Siphon Type Fix the pump to a stand or wall surface, and insert the suction hose and suction pipe into the drum container before use. Increases work efficiency since there is no need to carry or store the pump. Can be used for containers other than drum containers.

Specifications

		Drum type	Siphon Type
Product No.		852628	852629
Model		DR-50A1	SH-50A1
Maximum Discharge Pressure（MPa）		0.7
Material Connection	Suction Port	―	R1-1/2
	Discharge Port	Rc3/4
Air Connection Supply Port		Rc1/4
Operating Air Pressure Range (MPa)		0.3～0.7
Temp Range (°C)	Ambient	0～60
	Material Temperature	0～80
Water Discharge (mL)/Cycle		126
Net Weight (kg)		5.0	2.6

Dimentional drawing;

DR-50A1(852628)

SH-50A1(852629)

Performance curve

*Avoid using in the ranges in blue in the graph below.