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Brand: M/D Totco
M/D Totco Anchor Type Hydraulic Weight Indicators
Description
Hydraulic weight indicators for drilling rig deadlines
The M/D Totco anchor type hydraulic weight indicators measure tension in the drilling line deadline and show it as hook load and weight on bit. NOV states that the range works with all industry-standard deadline anchors, using either tension or compression hydraulic load cells, and that systems are supplied as portable box-mount instruments or panel-mounted in a driller console. Many models have separate pointers for hook load and weight on bit, and several offer an integral circular hydraulic recorder.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / brand | NOV, M/D Totco |
| Principle | Hydraulic load cell on the deadline anchor, hydraulic hose to a dial indicator |
| Type 200, AWE-Series | Deadline loads to 200,000 lb; 10, 12, 14 and 16 lines strung; E551 compression load cell; 16 inch dial |
| Type 150, AWE-Series | Deadline loads to 150,000 lb; 10, 12, 14 and 16 lines; E551 compression load cell; 16 inch dial |
| Type 125, AWE-Series | Deadline loads to 125,000 lb; 10, 12, 14 and 16 lines; E551 compression load cell; 16 inch dial |
| Type EB, AWE-Series | Deadline loads to 100,000 lb; 8, 10, 12 and 14 lines; E551 compression or E80 Sensater tension load cell; 16 inch dial; 4:1 vernier for bit weight |
| Type E, AWE-Series | Deadline loads to 75,000 lb |
| Type D, AW-Series | Deadline loads to 50,000 lb; 6, 8, 10 and 12 lines; E543 compression or E80 Sensater tension load cell; 16 inch dial |
| Type FS, AWA-Series | Deadline loads to 40,000 lb; 4, 6, 8 and 10 lines; E542 compression or E160A Sensater tension load cell; 12 inch dial with actual bit weight pointer, or 8 1/2 inch fluid-filled indicator with target pointer |
| Type G, AWG-Series | Deadline loads to 30,000 lb; 4, 6 and 8 lines; E190A compression load cell; 12 inch dial with target pointer |
| Standard features | Friction-free diaphragm type hydraulic load cell; high-pressure hose assembly with disconnect fittings; needle type dampers against hydraulic shock and pointer oscillation |
Choosing a type
Start from the deadline load and the number of lines strung. Each type is listed for a maximum deadline load and a set of line counts, so the rig hoisting capacity and the drilling line arrangement decide the model. Then choose compression or tension load cell according to the deadline anchor design, and between portable box mounting and a console panel. The Type EB adds a 4:1 vernier movement for sensitive bit-weight indication, and the Type FS and G are listed with 12 inch dials, or an 8 1/2 inch fluid-filled indicator on the FS.
The catalogue gives no price, ordering code or dimension table for these indicators, so send the anchor make and model, deadline load, lines strung and the mounting arrangement with your enquiry. The catalogue carries 2015 and 2017 copyright dates, so confirm that the model is current and which options are available before ordering.
Documents and quotation
The NOV M/D Totco Instrumentation Products catalogue is available on this page. Other rig instruments are listed under Pressure Instrumentation. Seven Star LLC supplies on request and quotes against the exact model and options confirmed.
Datasheets & Documents
- Catalogue M/D Totco Instrumentation Products catalogue (NOV) Download
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About brand
M/D Totco is the drilling rig instrumentation brand of NOV, headquartered in Houston, Texas, USA. Its hydraulic indicators show hook load, weight on bit, mud pump pressure and tong line pull on the rig floor, and its electronic drift tool records vertical hole surveys. Seven Star LLC, an independent supplier in Muscat, lists M/D Totco instruments from the NOV catalogue and flyer and quotes against the confirmed model and options.
M/D Totco product groups
The NOV catalogue covers anchor type hydraulic weight indicators, the TRU-VUE GM14 unitized pressure gauge, single and compound pointer hydraulic indicators, pressure debooster systems, diaphragm protectors and piston separators, the Hydro-Mech rotary torque indicator and tong line pull and torque assemblies. The E-Totco electronic drift survey tool is part of the same M/D Totco family.
Ordering M/D Totco instruments: what we need
Give the model series, the pressure or load range and unit, the mounting style, hose length and connection, and for weight indicators the deadline anchor type, load and lines strung. The catalogue is dated 2015 to 2017, so we confirm that a model is current before quoting.
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Frequently Asked Questions
What do these weight indicators measure?
Tension in the drilling line deadline, shown as hook load and weight on bit through a hydraulic load cell and hose to the dial.
What deadline load range is covered?
From 30,000 lb for the Type G up to 200,000 lb for the Type 200, depending on type.
Can they use tension or compression load cells?
Yes. Models are listed with compression load cells and some with E80 or E160A Sensater tension load cells.
How are they installed?
As portable box-mount instruments or panel-mounted in a driller console.
Do they include hose and fittings?
Standard features list a complete high-pressure hose assembly with disconnect fittings and needle type dampers.
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