Spring Type Float Collar Float shoe
Description
The body is made of high quality alloy steel, high mechanical strength.
Compact structure, interior material are made of aluminum alloy,
better drillability.
Used spring return check valve, preventing grout retum.
Suitable for big slope well and horizental well and other kinds of well.
Temperature resistance can reach 180°C, erosion resistance, better sealing.
Better reverse pressure-bearing ability, exceed API RP10F IIIc standard.
Special materials are available to suit specific well conditions
Parameters
|
Spec |
Length mm |
Max.OD mm |
Min.ID Mm |
Water hole Diameter mm |
Positive Pressure bearing Mpa |
Reverse Pressure bearing Mpa |
Length mm |
Max.OD mm |
Min.ID Mm |
Water hole Diameter mm |
Positive Pressure bearing Mpa |
Reverse pressure bearing Mpa |
|
5” |
512 |
141.3 |
111 |
60 |
25 |
30 |
400 |
141.3 |
111 |
60 |
25 |
30 |
|
5-1/2” |
497 |
153.7 |
121 |
60 |
25 |
30 |
427 |
153.7 |
121 |
60 |
25 |
30 |
|
7” |
504 |
194.5 |
157 |
60 |
30 |
35 |
432 |
194.5 |
157 |
60 |
30 |
35 |
|
9-5/8” |
408 |
269.88 |
221 |
70 |
25 |
30 |
374 |
269.88 |
221 |
70 |
25 |
30 |
|
10-3/4" |
393 |
298.45 |
250 |
70 |
25 |
30 |
356 |
298.45 |
250 |
70 |
25 |
30 |
|
13-3/8/” |
423 |
365.1 |
319 |
70 |
25 |
30 |
400 |
365.1 |
319 |
70 |
25 |
30 |
