Williamson designs and manufactures hot tapping equipment and provides hot tapping services. Process industry piping system maintenance and repair. Tdw provides hot tapping services and equipment that enable pipeline owners and operators to safely, efficiently, and cost effectively perform pipeline modification and repair activities without shutdown and with minimal disruption to product flow. Williamson s director of hot tapping and plugging technology. Hot taps shall be installed by trained and experienced crews. Performing a 20 x 12 hot tap for a 20 line stop insertion. The proseries advantage ensures shorter lead time through a standardized product with high quality materials and a qualitycontrolled process. Tdw recommends that hot tap fitting and tapping valve be pressure tested. In addition, it can be used for installing 2inch and 3inch completion plugs in tapping nipples, and for installing tdw pigsig passage indicators. Williamson, which allows the safe hot tapping and plugging of gas and oil pipelines without the need for their shutdown. Hot tapping is an activity that is commonly contracted to experienced contractors who have thier own approved welding proceedures. Model 1200k tapping machines are designed to make hot taps into metal pipe, tank tops and walls.
Assorted td williamson tapping equipment for sale in kansas. Assorted td williamson tapping equipment item bk9732 9. Split tees often to be used as branch and main pipe has the same. A permanent valve is then attached to the fitting and the hot tap machine is installed on the valve. They are hydraulically operated and are used for making pipe and tank. Hot taps or hot tapping is the ability to safely tie into a pressurized system, by drilling or cutting, while it is on stream and under pressure. Williamson, inc this procedure is general in nature and represents the major. Sizeonsize tapping fitting reduced branch tapping fitting tdw tapping fittings sizes. The tdw technician on site will advise the proper usage of tdw equipment. Both mechanical and grouted hot tap tees are likely to offer cost savings compared with welded hot tap tees by removing the need to perform hyperbaric welding.
A hot tap shall not be considered a routine procedure, but shall be used only when there is no practical alternative. This publication gives guidlines for a hot tap procedure, along with a hot tap checklist. Using hot taps for in service pipeline connections contd exhibit 2. Williamson hot tapping and plugging fittings fully comply. Specifications and procedures description of procedure the line stopping procedure is a means of temporarily plugging a pressurized pipe without disrupting pressure of service upstream of the line stop. Trust the true pioneer and leader in hot tapping and line plugging techniques. The tdw 660760 tapping machine power unit normally operates 6 dn. Mechanical hot tap tees are a field proven technology for processed fluids which could be used as a solution for small pool tie backs.
Tdw hot tapping and plugging solutions engineering. Fullscale test of deepwater hottap system set for early. Williamson sa, a leading supplier of pipeline services and equipment, has performed a successful hot tap operation for acergy. As already stated, guidance is available in api rp 2201, rp 1107 and the hse hot. Stopples the hottapping, stoppling, work to remove the pig and the. It should be noted that hot tapping of sour gas lines presents special health and metallurgical concerns and shall be done only to written operating company approved. Td williamson has performed more than 300 subsea hot taps over the past 30 years. Tdw provides the most comprehensive hot tapping, plugging, pigging, and composite wrap installation instruction available in compliance with department of transportation covered tasks standards requirements. Handling the heat subsea offshore engineer magazine. Innovationsjanuarymarch2014 6 tapping into tomorrow innovations in hot tap technology for safer, better results david turner is a futurist, a visionary. Hot tapping is a procedure that makes a new pipeline connection while the pipeline.
Tdw products include a wide range of pipeline hot tapping and drilling products. Tdw, the worlds most recognized name in pipeline equipment and services, delivers solutions for onshore and offshore applications. Hot tapping and plugging transmission lines youtube. They undergo extensive pressure testing and are designed to meet asme b31. Safety manuals and procedural outlines are available from the american petroleum institute api, american society. What is a hot tap, why it is made and how to make a hot. Also the owners of the equipment should be involved and have engineer approval. This item is a assorted td williamson tapping equipment with the following. When a hot tap is performed, the double wired pilot drill retains the coupon and it is recovered when the hot tap is completed. Hot tapping describes the method of making a connection to existing piping or pressure vessels without interrupting or emptying that section of pipe or vessel.
Unlike most of the goofy asme code rules and nonmandatory appendices, the api rp 2201 recommended practice is a complete document that addresses this question. The process is also used to drain off pressurized casing fluids and add test points or various sensors such as temperature and pressure. This subsea operation was carried out on a gas pipeline in the. The procedure of fitting a branch onto a pipeline which is still operational is known as hot tapping. Partners report using hot tap procedures routinelysmall. It is not intended to be used for training or as an absolute guideline. Fittings the hot tapping process begins when an operator connects a high. Tdw is the trusted source for hot tapping and plugging equipment and services. Purpose to establish a clear set of guidelines to be followed when performing hot tap. Williamson performs subsea hot tap operation on north. Williamson, inc this procedure is general in nature and only represents the major steps to be considered while doing a stopple application. Determining the steps necessary to complete a hot tap.
Pipe hot tapping pipe fluid conveyance natural gas. The stopple plugging machine consists of three major sections. Williamson, inc this procedure is general in nature and represents the major steps to be considered while doing a hot tap application. Rigorous handson training and operator qualification linemaster programs are our commitment to the industry. A pressure tap is first made into the main, allowing insertion of. Koppl uses the latest technology in coupon retention available.
Hot tapping and plugging technology opens pathway for safe, efficient projects. In a typical operation a hot tap fitting either welded or mechanically bolted is first secured on the line. Hottapping of consumer piping energy safe victoria. Figure 1 typical hot tap installation consists of a tapping saddle, gate valve, and hot tapping machine.
If you need minimum suggested requirements for hot tapping contact global engineering documents and purchase a copy of api 2201. Using hot taps for in service pipeline connections pdf epa. However, as this procedure was done with the valve in the fully open position and. Use of isolation stopples for valve replacement on trans.
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