Inclinometer Casings
Standard ABS Inclinometer Casing
GT-ABS-00 is the standard OD 70 mm ABS inclinometer casing with four internal guide grooves for traversing probes and in place strings. Casing is supplied in 3 m or 2 m lengths with 76 mm couplings, and OD 53 mm and 80 mm pipes are also available. It is produced on our own extrusion lines, which is what lets long project quantities ship on a predictable date.
ISO 9001:2015 production Samples available Small orders accepted
Product Overview
GT-ABS-00 is the standard OD 70 mm ABS inclinometer casing with four internal guide grooves for traversing probes and in place strings. Casing is supplied in 3 m or 2 m lengths with 76 mm couplings, and OD 53 mm and 80 mm pipes are also available. It is produced on our own extrusion lines, which is what lets long project quantities ship on a predictable date.
Materials
- ABS
Key Benefits
- Groove geometry held to 5 plus minus 0.5 mm width and 2 plus minus 0.2 mm depth so probe wheels track cleanly
- Bending of 1.0 per mille or less keeps survey error down over a deep hole
- Heat deflection temperature of at least 97 degrees C for grouting heat and hot climates
- Made on our own extrusion lines with capacity of tens of thousands of metres per day
- OD 53 mm and 80 mm also available for smaller and larger installations
Application Scenarios And Who It Is For
Application Scenarios
- Slope and landslide monitoring boreholes
- Deep excavation and diaphragm wall monitoring
- Embankment and dam deformation monitoring
- Pile and abutment movement surveys
Who It Is For
- Geotechnical monitoring contractors installing survey holes
- Consultants specifying casing for long-term arrays
- Drilling contractors installing instrumentation casing
- Distributors of geotechnical instrumentation
Problems It Solves
- Casing spiral that corrupts the survey direction over depth
- Couplings that let grout into the casing and jam the probe
- Long project quantities that arrive in batches and hold up the drilling programme
- Mismatch between casing groove size and the probe already owned
Technical Features
- Four internal guide grooves at 5 plus minus 0.5 mm width and 2 plus minus 0.2 mm depth
- Torsion angle 0.2 degrees per metre or less
- Radian 0.4 mm or less
- Intensity strength at least 1200 N/100m on casing and coupling
- ABS material with heat deflection temperature of at least 97 degrees C
Specifications
Values below are taken from our published product data. Our tables note that figures are general averages for reference and that actual data should be confirmed by testing within the applicable scope.
| Casing OD | 70 plus minus 1.0 mm |
|---|---|
| Casing Wall Thickness | 5 plus minus 0.5 mm |
| Guide Groove Width | 5 plus minus 0.5 mm |
| Guide Groove Depth | 2 plus minus 0.2 mm |
| Bending | 1.0 per mille or less |
| Torsion Angle | 0.2 degrees per metre or less |
| Radian | 0.4 mm or less |
| Intensity Strength | at least 1200 N/100m |
| Heat Deflection Temperature | at least 97 degrees C |
| Casing Length | 3 m or 2 m |
| Coupling OD | 76 plus minus 1.0 mm |
| Coupling Wall Thickness | 5 plus minus 0.5 mm |
| Coupling Length | 18 plus minus 0.5 cm |
| Coupling Bending | 1.0 per mille or less |
| Coupling Intensity Strength | at least 1200 N/100m |
| Coupling Heat Deflection Temperature | at least 97 degrees C |
| Other Diameters | OD 53 mm and 80 mm casing pipes also available |
Quality Control
- Outer diameter held to plus minus 1.0 mm on casing and to the stated tolerance on couplings
- Groove width and depth checked so probe wheels track without binding
- Bending, torsion angle and radian measured on production lengths
- Intensity strength and heat deflection temperature verified against the published limits
Customization Options
- Casing length 3 m or 2 m
- OD 53 mm and 80 mm alternatives
- Caps, protection boxes and couplings supplied with the casing
- Quantity scheduling across a drilling programme
Comparison With Other Products
| Compared With | Why This Product |
|---|---|
| Standard PVC Inclinometer Casing | ABS is the usual choice where handling toughness matters on site; PVC is offered to the same dimensional spec |
| Flushed ABS Inclinometer Casing | The flushed type uses a slimmer 73 mm coupling where borehole annulus is tight |
Use Guide
- Check groove alignment between lengths before lowering the string into the hole
- Join lengths with the matching couplings and seal against grout ingress
- Set one groove pair along the expected direction of movement and record the orientation
- Fit top and bottom caps, and a protection box where the casing head is exposed
Questions Buyers Ask
Standard ABS Inclinometer Casing FAQ
What tolerance do you hold on the casing
OD 70 plus minus 1.0 mm, wall thickness 5 plus minus 0.5 mm, groove width 5 plus minus 0.5 mm and groove depth 2 plus minus 0.2 mm.
How straight is the casing
Bending is 1.0 per mille or less, torsion angle 0.2 degrees per metre or less and radian 0.4 mm or less.
What is the production capacity
Two extrusion lines can produce tens of thousands of metres of casing or pipe each day, so long orders do not wait behind short ones.
Is the quality system certified
The company is approved to ISO 9001:2015, which keeps casing production traceable.
Do you supply caps and protection boxes
Yes. Top and bottom caps and outer protection boxes are available as optional parts for inclinometer casings.
Can you ship a mixed order of casing and instruments
Yes. Send your casing metres and instrument list on WhatsApp and we will quote them together.
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