They are used as downhole pipes in water-injection wells, oil-production wells with sucker-rod pumps, electric submersible pumps (ESPs) and progressive-cavity pumps (PCPs), chemical-waste disposal wells, observation wells, etc.
COUPLINGS AND BELL-AND-SPIGOT JOINTS WITH 8RD THREAD
MOLDED THREAD WITH ANTIFRICTION ADDITIVES
INTERNAL DIAMETERS: 50, 65, 80, 100, 150 AND 200 MM
