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How Zap-Lok Saves Time Zap-Lok is the unique mechanical process that can join steel pipe in less than 60 seconds under field conditions, is used in the same service as welded lines, and which requires no X-ray testing. Current sizes and grades range from 2 3/8"-12 3/4" OD, up to schedule extra strong, and up to grade API 5L X-60. A portable hydraulic machine that can be carried by a sideboom tractor or transported on a barge or lay barge performs the joining process. A small crew of 7 workers can connect over 1,000 feet per hour using this equipment. Zap-Lok provides the optimum method for construction of onshore or offshore gathering and distribution systems, transmission lines, and specialized pipe installations. Internally and externally coated pipe can be installed with Zap-Lok offshore, in every type of terrain, and in severe as well as sensitive environments. Over the years, tens of thousands of miles of Zap-Lok connected pipe have been employed in a wide range of services, including gas, crude, sour gas, CO2, produced water, and potable water.
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