★ Product Description ★
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1.Application and characteristic
Position device (stop ring or stop collar), 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.
★ Property Parameters ★
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| 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 |
★ About Us ★
∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴∵∴
Restructured from SINOPEC in 1997, we has 20 years manufacturing experience of petroleum machinery
products with competitive prices.
Main products of Cementing Equipment and casing accessories : spring centralizer, solid rigid centralizer,float equipment, cementing plug etc.
We have 9 factories, more than 500 employees, and many kinds of production equipments.
We have certificates of API 5CT,6A,10D,11AX,11E, ISO 14001 and 9001.
With 10 years exporting experience,we have exported to more than 30 countries such as
America,Canada,Russia,Venezuela,Columbia,Thailand,Indonesia ,UAE,Saudi Arabia,Kazakhstan etc.
Audited Supplier 
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