Pump Division / Water Products | Dempster Industries LLC

Hand Pumps

Hand Pumps | Pump Cylinders

The Mark II is manufactured to strict industry standards for complete interchangeability of repair parts. It was designed through the joint efforts of a number of world service organizations. This pumps purpose is for long life under extremely adverse conditions, such as village wells, to 262 feet (80 meters) deep. It is intended to operate 20 million cycles before any repair is required. Recommended installation is for the pump base and casing pipe to be imbedded in a cement platform and foundation to seal the well. This provides an easily cleaned surface with a sloping drain into a soak for a PROTECTED source of potable water. more info

Dempster hand and windmill pumps are adapted for wells of any depth. Neat in design and substantially built, equipped with a 4-bolt adjustable flanged top, extra long handles and heavy steel bearer pins. Tops fitted with stuffing box and packing for tight seal on the piston rod. 4-position handle adjustment for up to a 10 inch stroke. Large capacity air chamber for smooth force pumping. Furnished with siphon or compression spout. Siphon spout furnished unless otherwise ordered. 2 x 1-1/4 inch suction bushing furnished with each pump.

MODEL 210F is a heavy-duty hand or windmill force pump. It has a 1-1/16-inch polished steel piston rod securely threaded to the flat bar. For use in wells of extreme depth, with large cylinders or continuous operation.

MODEL 226F is a normal duty hand or windmill force pump. It has a 11/16 inch steel piston rod fitted to the flat bar with a heavy cast set screw connection. For use in wells of shallow to moderate depth at normal farm and ranch operation.

MODEL 210CS and MODEL 226CS same as above except equipped with a Model 36 Compression Spout.
Model 23F same as above but does not have flat bar for windmill.

Model 23F same as above but does not have flat bar for windmill.

Typical Hand Pump Installation

Pump Jack mounted on a Dempster Hand pump.

The Dempster Pump Jack is designed to operate a Dempster (or similar) hand and windmill pump with an electric motor, gasoline engine or other power source. The pump jack may be used as a backup to a windmill to provide water on calm days, or if the windmill is out of service.

Pump Jack mounted on a Dempster Hand pump.

The BB-33 Pump Jack should not be used with greater than a 1/2 H. P. electric motor or 1 1/2 H. P. gasoline engine. The speed must not exceed 40 strokes per minute (640 RPM shaft speed) under any circumstances. more info