Cement Spring Type Float Collar Float Shoe
Description
Check valve is made of phenol powder which interal suppressed at high temperature and pressure, can withstand 70Mpa pressure and 205 'C temperature.
The spring is made of tin brone alloy, good elasticity, can withstand 30000 times elastic compression, easy drillability.
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 |
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