Specifications

1.Mechanical Stage Collar
2.API Spec
3.Best service,good quality
4.Anti-rotation mechanism
5.Easily drillable material

Model YFZ-A Mechanical Stage Collar

1. Anti-rotation mechanism protects the closing sleeve from damage while drilling out the opening and closing seats.

 

2. No fluid trapping while opening and closing the ports.

 

3. All internal parts are made of easily drillable material.

 

4.A Pump-Down Opening Plug can be used for a continuous two-stage cementing operation.

 

 

Specifications

 

Casing Size	Max O.D.		Min.I.D.		Overall Length
in.	mm	mm	mm	in.	mm	in
7	208	8.189	157	6.181	1140	44.882
7-5/8	230	9.055	174.2	6.858	1140	44.882
9-5/8	282.5	11.122	220.5	8.681	1170	46.063
10-3/4	310	12.205	252	9.921	1211	47.677
13-3/8	384	15.118	315	12.402	1211	47.677