Conventional Wellhead Equipment
Secondary Seals
DP Secondary Seal
- Installs in the bottom prep of casing spools and tubing heads
- Held in place by an easily installed snap ring
- Provides a pressure energized secondary seal
- Available in different ID and OD combinations to serve as a reducer bushing
DHP Secondary Seal
- High pressure seal designed for up to 15,000 psi
- Secured in the bottom of the head with an Acme threaded locking ring
- Available in sizes 4-1/2 - 9-5/8
FB Secondary Seal
- Standard seal for DO-TCFB tubing head
- Utilizes nonextrusion backup rings on OD and ID seals
- Offers full-opening to 4-1/2 – 5-1/2 Casing
- Acme threaded locking ring for securing seal during high pressure fracturing