Stop Collar is used to hold centralizer or cement baskets on any position of casing, which ensures the positions of centralizer or cement basket to meet the design. The stop collars are available in two types: higned type and slip on type. The stop collars can be installed on any position on casing to limit the axial movement of centralizer and cement baskets.
Usage
1. Fastening screw stop ring when use, first set into the casing, and then using a wrench to tighten the screws.
2. Fixed screw type when use, first set into the casing, and then insert screws, type in with a hammer.
3. Snap fit stop ring, direct stop ring button on the casing, use pin lock, then knocked into the screws.
Hinged Bolted Stop Collars
An economical collar suitable for sub-critical annular tolerances. Available in size range 4 1/2" to 20", it has a cross bolt design which makes it an efficient and user friendly device.
Hinged Spiral Nail Stop Collars
Available in the size range 4 1/2" to 20", this device can be set in both upset and non-upset casing to provide maximum clearance during rotation. It has a groove in the middle into which a spiral nail can be driven for improved grip on the casing. The broader band firmly grips the collar into position around the casing.
Hinged Stop Collar with Set Screw
Available in the size range 4 1/2" to 20", this device has a high cost-utility ratio. This hinged collar with a row of set screws positions easily and firmly around the casing.
Slip on Stop Collars with Set Screws
This slip-on set screw device is recommended for small hole operations.
Available in size range 2-7/8" to 20" and is gripped by a row of screws, this is a heavy duty device.
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 |
| Stop Collar(Snap Ring)Type |
Type |
Size(mm) |
Weight(kg) |
| 13 3/8" |
Fixed Screw |
Φ370x50 |
9 |
| 9 5/8" |
Fixed Screw |
Φ270x50 |
7.3 |
| 7" |
Fixed Screw |
Φ195x40 |
5.1 |
| 5 1/2" |
Fixed Screw |
Φ154x30 |
3.2 |
Casing Use Hinged Spiral Nail Stop Collar
Features
1.Comprises of two parts
2.Hinged at two ends
3.An angle of 180 degree
4.Sizes ranging from 4-1/2" to 20"
5.With an internal groove
Advantages
1. The Hinged Spiral Nail Stop Collar comprises of two parts and hinged at two ends making an angle of 180 degree.
2. This hinged Stop Collar has an internal groove and these are available in 4 1/2 " to 20 " sizes+ any sizes in which a spiral locking pin is inserted.
3. This tightens the collar to the casing firmly.
4. It can be latched on the casing pipe without having to be slipped on.
5. This cementing product is easy to install and most effective where annual low clearance received.
6. The stop collars are coated with to polyester powder which prevents it from getting rust.
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