U BOP Bonnet Rebuild Softgoods Kits

For popular size U BOPs, a bonnet rebuild softgoods kit is available to provide all parts required to reseal the operating system. Kit parts are shrink-film packed to prevent loss and assure long shelf life. The kits are less expensive than individual parts, and all parts in each kit are identified with part numbers and parts list index numbers.

U BOP Bonnet Softgoods Kit Components

Item No. Description
18 Ring, Plastic Packing
19 Ring, Plastic Energizing
20 Seal Ring, Connecting Rod
21 Ring Back-up
22 Seal, Bonnet
24 O-Ring, Operating Cylinder
25 O-Ring, Operating Piston Rod to Intermediate Flange
26 Lip Seal, Operating Piston
27 Seal Ring, Tail Rod
28 O-Ring, Wiping
29 O-Ring, Ram Change Piston to Body
30 O-Ring, Ram Change Piston to Intermediate Flange
31 O-Ring, Ram Change Cylinder to Intermediate Flange
32 O-Ring, Ram Change Cylinder to Bonnet
33 O-Ring, Ram Change Piston
34 O-Ring, Bonnet Bolt Retainer
40 Washer
41 Ring, Retainer
42 Wear Ring, Operating Piston

Kit Part Numbers

BOP Size (in.) Pressure Rating / Bonnet Type Kit Part Number*
7-1/16 3000, 5000, 10,000 and 15,000 psi All ** S644909-01
11 3000, 5000 and 10,000 psi Pipe ** S644909-02
11 15,000 psi All S644831-08
13-5/8 3000, 5000 and 10,000 psi Pipe ** S644909-03
13-5/8 15,000 psi All S644831-12
20-3/4 3000 psi Pipe S644831-17
21-1/4 2000 psi Pipe or Shear ** S644831-18

* One kit contains softgoods for one bonnet.
** Except Large Bore Shear Bonnets.