Yes. Cherne offers two chemical resistant mechanical plugs: The Cherne Well Monitor Plug and the Cherne Petro Econ-O–Grip.
What is the maximum temperature that the original gripper plugs be exposed to?
Gripper plugs have natural rubber O-Rings. These O-Rings allow for operating temperatures between 0° F to 125° F. Consult engineering for usage outside this temperature range.
What gripper should be used when blocking a hole?
Mechanical plugs can be used to block an opening (Grippers are mechanical plugs). Be sure to use the correct size Gripper for the opening.