FlowTek Offers specialist contracting services in the field of directional drilling and all methods of trenchless technology. Directional drilling is a method by which pipes and cables can be installed underground, without the disruption caused by trenching, such that installation can be achieved under roads, railways, rivers, airport runways etc., without any disturbance to surface structures. FlowTEK Limited Are able to provide a complete turnkey package, whether at a rate per metre on line work or on a fixed price basis on Specialist crossings.In many circumstances, whilst open cut methods could be employed, the extent of the disruption and inconvenience which would be caused to the business community and the public at large is such that trenchless techniques provide the practical solution. Over recent years utility companies across the UK have committed to massive programs for the installation of new and replacement mains. During this period Horizontal Directional Drilling has developed from being a marginal player to the preferred method of installation. Trenchless Technology The technique of that is used by FlowTEK involves the drilling of a pilot bore from the required start point along a predetermined route to the required completion point. Throughout this operation, adjustment can be made to the line and level of the bore. The fluid assisted angular faced drill head carries a transmitting device in order that the position, depth, pitch and roll can be monitored on the surface. When the pilot bore is complete, the drill head is removed and replaced with an appropriate back reamer. The cable or pipe is attached behind the reamer by means of a swivel and towing head. The cable or pipe is then installed as the drill string is retracted. The fluids pumped through the rods to the head are vital to the process in that, in addition to lubrication and cooling, the polymers used help bind and stabilise the surrounding earth. The ease with which the above operations can be carried out depends on a number of factors including the diameter of the pipe or cable to be installed, the length of the shot and the complexity of the route to be directionally drilled, with regard to any sensitively positioned underground services. Always of significance are the prevailing ground conditions and the knowledge and experience of the operatives with regard to the use of appropriate tooling and polymers as these factors are fundamental to a successful directional drilling operation. FlowTEK offers a comprehensive service in the underground installation of pipe, duct or cable through the application of the company’s extensive range of directional drilling plant and equipment by the teams of highly trained and experienced operatives. Contracts undertaken vary in size from the installation of domestic pipe or cable over short distances, to the installation of pipe or duct for the utility industries across many kilometres or large diameter crossings under roads, railways, airport runways or rivers.