Sanjack has more than 40 years of experience in International Standard wellhead and christmas tree production, with advanced manufacturing and testing equipment, can produce a variety of pressure levels, material levels, specification levels of  wellhead and christmas tree.

Offshore wellhead and X-mas tree is designed to solve the problem of space limitation faced in offshore platform oil and gas wells, and adopts a complex integral design.

This offshore wellhead and X-mas tree is usually machined from one steel bar, thus decreasing the overall height of wellhead and X-mas tree equipment.

To increase its safety, this equipment is fitted with a hydraulic safety valve.

Sanjack’s offshore wellhead equipment has many special designs to meet the needs of offshore oil recovery.

1). Optimization of gate valve torque

The rod seal is made of polytetrafluoroethylene with skeleton, so the seal is reliable.The new type of rod seal structure has small switching torque and 3 1/8 “ valve can be turned without pressure by a finger.

2) Switch indicator of gate valve

We changed the structure of the gate valve and added a Switch indicator on the valve bearing box, as shown in the figure.

Observe the position of the indicator ring to determine the status of the valve on/off.

3). Optimization of cable seal

Sanjack redesigned the structure of the cable seals, turning the original V-shaped seals into tapered seals.

4) BIW penetration

In order to further improve the tightness of the cable, we use BIW penetration.