Sure-Stop – Ultimate “No-Shutdown” Control

Furmanite’s Sure-Stop Line Stop is a pipe line plugging system used for providing a positive line stop when having complete line stoppage of flow and product is crucial.  Sure-Stops are often used on flamable and noxious products such as natural gas, petroleum distillates, flare systems, and annhydrous ammonia.

Safe Line Stoppage – When Other Systems Have Limits

Sure-Stop Line Stops provide effective shut-down of flow on pipes that are known to have limitations that can effect the quality of stoppage by other line stop methods.  Common issues that can effect the quality of a traditional line stop are out of round pipes, internal weld seams, heavy internal pipe build up of scale and deposits, and hot tapping shavings.  The Sure-Stop Line Stop method does not rely on sealing on the pipe ID, but rather seals on a freshly machined surface that is “cored” through the existing pipe.  The Sure-Stop Head then intersects the existing pipe and is mechanical expanded, wedging a seal against the pipe wall on all sides.  The compressed seal provides a very fail-safe and postive line stop in most instances.











Sure-Stop Line Stop System

Furmanite’s Sure-Stop Line Stop services provide pipe system control when valves are unavailable or do not operate, and shut-down is not desirable.  While other Line Stop methods seal on the inside of the pipe wall, the Sure-Stop line stop valve intersects the existing header pipe and compresses its seal against a freshly machined cut.

Sure-Stop Capabilities

  • 14″ – 48″ Diameter Pipe Systems
  • Line Stop pressure rating to 500 PSI
  • Available for Line Stopping ANSI Class 150 and 300 pipe systems
  • Positive Flow Stoppage when other Line Stop systems are limited
  • Ideal for work on systems containing flammable or noxious contents when complete Line Plugging shutdown is crucial
  • Additional Safety
  • Works on out of round pipe, pipe with internal seams
  • Effective Line Stop on pipes with known internal build-up of minerals, ash, sludge, or other.
  • Hot Tap Shavings will not limit the quality of the line plugging shutdown like other methods


Furmanite - Innovative since 1920

Leak Sealing process developed leak-sealing-developed_thumb 01/01/1920

Furmanite Leak-Sealing process is Developed The under pressure Leak Sealing process is developed by Eugene Clay Furman at the Newport …

First DIY Leak-Sealing Kit old-furmanite-leak-sealing-equipment 01/01/1924

First DIY Leak-Sealing Kit The first do-it-yourself Leak Sealing kits were developed and marketed by Clay Furman and while they …

Long Standing Relationships Sales-Brochure-1926_thumb 01/01/1926

Long Standing Relationships US customer reference list that includes individual war ships in the US Navy, US steel companies and …

1st Patent is filed in 1927 furmanite-patents1 01/01/1927

1st Patent is filed in 1927 The Furmanite patent for the leak sealing process filed in 1927 was the first …

Furmanite moves Overseas Liverpool-Exibition_thumb 06/01/1927

Furmanite moves Overseas First overseas agents appointed to market the leak Sealing kits including in the United Kingdom and Euro…

Costs of a steam leak Sales-Brochure-1926-pg-8_thumb 06/01/1928

Price List from 1926 Table detailing costs of allowing a steam leak based on $4 per ton for “Long coal”. …

Furmanite is thinking global furmanite-the-skys-the-limit_thumb 01/01/1929

Furmanite is thinking global A brief history of the United Kingdom Company written by A W Forsyth (OBE) in September 1973 …

Technology Development leak-sealing-diagram 11/22/1934

Technology Development Furmanite Expands Engineering on Leak Sealing Technology. Photographs taken from a 1934 sales brochure together with schematics of …

Growing Furmanite purchase-letter_thumb 05/01/1960

Growing Furmanite Letter from the Chairman of Furmanite Engineering based in Birkenhead, England to his lawyer requesting information on a …

New Direction New-Technology_thumb 01/01/1966

New Direction Alan Forsyth, acting as a consultant to Furmanite Engineering (1929) advised the Board to move from selling low …

Never compromise on the high quality Company-History-July-1979_thumb 07/01/1979

Never to compromise on the high quality A brief history of the United Kingdom Furmanite organisation written by Joyce Hainsworth, the …

Best in the business were called NASA---Discovery-Team_thumb 09/01/1988

Best in the business were called Furmanite successfully seals nitrous oxide leakage on the Space Shuttle “Discovery” pre launch September …

Start of Modern Furmanite company-overview 11/22/1991

Start of Modern Furmanite The common shares of Furmanite were acquired by Kaneb Inc on 24th January 1991. Furmanite remains …

Acquisition-GSG Division Acquisition-GSG-Division_thumb 01/13/2006

Acquisition of Flow-Serve GSG Division Furmanite as part of Xanser Corporation acquired the General Services Group (GSG) of Flow-Serve corporation …

Corporate Name Change Corporate-Name-Change_thumb 01/13/2007

Corporate Name Change Xanser Corporation (NYSE:XNR) changed the company’s name to Furmanite Corporation, and the company’s shares were traded on …

Acquisition of SLM Acquisition-of-SLM_thumb 04/13/2011

Furmanite Corporation Acquires Self Leveling Machining Technology Furmanite expanded  its global on-site machining capabilities through the acquisition of Self Leveling …


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