The RHA pumps are heavy wall, stationary barrel, top anchor design insertable pumps. Available with either 3 cup type hold down (RHAC) or with a mechanical lock hold down (RHAM), RHA pumps allow a greater operating depth due to their heavy wall barrel. Insertable pumps can be removed from the well without having to remove the production tubing. Top anchor design means ideal for sandy wells.

An all-metal plunger pump, the RH rod pump offers heavy-duty construction. The barrels are made from 3/16-in. wall tubing and are externally threaded, which provides extra strength and permits spacing the pump so that the plunger can stroke out both ends of the barrel. This stroke-through design combats buildup of scale on the inside of the pump barrel.

RHA insert pumps are heavy-walled，stationary barrel, top anchor pumps recognized by API as a standard design. These pumps are suitable for moderate depths with high sand fallback on well shutdown. Fluid dispersion directly above the seat nipple prevents the pump from becoming stuck in such a situation.

The heavy-walled barrel is less sensitive to pressure and therefore may be run slightly deeper than the otherwise similar thin-walled RWA insert pumps.Seating options on this pump include mechanical or cup types suitable for high temperatures and mechanical types to simplify well maintenance. A mechanical hold-down does not require repair unless major damage has occurred, whereas cups should be replaced every time the pump is unset. Both hold-down types follow the same procedure of setting by placing the weight of sucker rods down on the pump and unsetting by lifting them up.

Sanjack sucker rod pump workshop was established in 1964, which has more than 50 years of history. We have rich experience in production and strong ability in research and development.