BW NW HW PW SW Casing Tubes
- Description
- Inquiry
Geological聽Casing Tubes
W Series Casing
Flush-jointed casing: each casing tube has a male thread at one end and female thread at the other end. The heavy wall section provides internal and external mating shoulders for the threaded portion to butt-up against, providing twice the contact area of coupled casing and helping to prevent the threads climbing under heavy torque loads. This is by far the most popular type of casing used in geotechnical applications.
Flush-jointed casing: each casing tube has a male thread at one end and female thread at the other end. The heavy wall section provides internal and external mating shoulders for the threaded portion to butt-up against, providing twice the contact area of coupled casing and helping to prevent the threads climbing under heavy torque loads. This is by far the most popular type of casing used in geotechnical applications.
X Series Casing
Flush-coupled casing: each casing tube has a box thread at both ends and lengths are connected together by a pin-to-pin coupling. This allows couplings to be replaced when pin threads become worn or damaged. It also means that the casing tube can have a thinner wall than the coupling, allowing the overall weight of casing string to be minimized. This can be important when drilling to greater depths.Casing tubes are available in DCDMA sizes BW, NW, HW, PW and SW and Metric Sizes 46 -146 mm.
Flush-coupled casing: each casing tube has a box thread at both ends and lengths are connected together by a pin-to-pin coupling. This allows couplings to be replaced when pin threads become worn or damaged. It also means that the casing tube can have a thinner wall than the coupling, allowing the overall weight of casing string to be minimized. This can be important when drilling to greater depths.Casing tubes are available in DCDMA sizes BW, NW, HW, PW and SW and Metric Sizes 46 -146 mm.
Size
Flush-Jointed W Series Casings |
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Size |
Outer Diameter |
Inner Diameter |
||
聽 |
inch |
mm |
inch |
mm |
BW |
2.874 |
73.0 |
2.374 |
60.3 |
NW |
3.500 |
88.9 |
3.000 |
76.2 |
HW |
4.500 |
114.3 |
4.000 |
101.5 |
PW |
5.500 |
139.7 |
5.000 |
127.0 |
SW |
6.625 |
168.3 |
5.937 |
150.8 |
Flush-Coupled X Series Casings |
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NX |
3.500 |
88.9 |
3.000 |
76.2 |
HX |
4.500 |
114.3 |
4.11 |
104.4 |
PX |
5.500 |
139.7 |
4.870 |
123.7 |
*聽Casing聽thread:聽4聽threads聽per聽inch.聽 聽*聽Casing聽length:聽generally聽supplied聽with聽length聽3.0m,聽1.5m聽&聽0.75m.