In this pump, the barrel is attached to sucker rod and moves up and down with the sucker rod string. The plunger is connected to the hold-down by a hollow pull tube and remains stationary. The traveling barrel pump is recommended for sandy wells since the movement of the traveling barrel keeps the fluid in motion as sand washed down, which minimizes the possibility of sand setting around the pump and sticking it. The traveling barrel is particularly recommended for wells being pumped intermittently since the ball in the top cage will seat as well is shut down, sand cannot settle inside of the pump. The traveling barrel pump is not suitable for gassy wells and viscous fluid wells. It is not recommended for the pumps with long stroke in deep wells, either.

Technical specifications