telephone:(01800)2634621 | e-mail:info@vannpumping.com | Tyler, TX 75710, USA
dump vent valve
Position
This valve fits in the string below the ball and seat and above the hold down.
Function
This tool allows for controlled venting or dumping all of the fluid out of the tubing.
standing valve
The Standing Valve is screwed on top of pump barrel and replaces the rod guide. After the beginning of the down stroke, the valve closes to reduce the hydrostatic pressure against the ball inside the plunger. This action reduces gas locking by letting compressed gas travel up into the upper chamber of the barrel.
