Description

Comprising a pressure bypass component and a lower opening component, this sub converts annulus pressure from the upper end of the packer to the lower end of the packer. It fulfills pressure initiation and opening functions to establish negative pressure, and must be used in tandem with a pressure delay initiation device.

Features

The unit is built with a 4140 steel body, and is fitted with Viton-70 durometer O-rings for sealing performance.

Disk Material：Ceramic