1. Application and characteristic

Position device (stop ring), called position ring, stop circular, brake ring, etc. It is used to limit the centralizer or cement basket slip on casing. It is divided into mobile screw type, fixed screw type and buckle type.

2. Install and use method

A. When use mobile screw type stop collar, slip over the casing, tighten the screws using wrench.

B. When use fixed screw stop collar, put the collar around the casing, insert the screw, and knock into screws by hammer.

C. When install buckle type stop collar, buckle the stop collar onto the casing, lock with pin, knock into the screws.

Specification

3. Property Parameters

 

Specifications,mm	13 3/8″	10 3/4″	9 5/8″	8 1/8″	7 5/8″	7″	5 1/2″	5″	4 1/2″
ID,mm	338	272	245	206	193	177	139	126	114
OD,mm	350	284	257	218	285	189	151	138	126
Holding Force,KN	40	40	40	30	30	30	30	24	24