KWRH Expendable Seat Catcher Sub

The KWRH expendable seat sub is installed in the tubing string below the packer and used to set the hydraulic set packer.

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Description

KWRH Expendable Seat Catcher Sub

The KWRH expendable seat sub is installed in the tubing string below the packer and used to set the hydraulic set packer.
To set the packer, a ball is circulated down through the tubing and reaches the ball seat of the ball seat sub, and then pressure is applied to set the packer. Once the packer is set, the pressure is increased to shear out the ball seat of the ball seat sub, it has a full-open ID when the ball is expended.
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Features and Benefits：

The shear screw cannot accidentally fall off and affect the shear value;
Compatible with standard tubing or packer;
Simple structure, convenient installation and proper cost;
High strength, applicable pressure rating of 10,000psi;
The opening pressure is stable;
Various end connections and ball size can be customized;
Opening pressure can be adjusted according to demand

Shear-out Ball Seat Sub Specification
Tubing size		MAX.OD		Min.ID（after being sheared）
in	mm	in	mm	in	mm
2 3/8	60.33	3.063	77.80	1.750	44.45
				1.875	47.63
2 7/8	73.03	3.668	93.17	2.250	57.15
3 1/2	88.90	4.500	114.30	2.750	69.85
				2.875	73.03
5.000	127.00	5.669	144.00	4.134	105.00