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IMI Bailey Birkett has been providing customers in the process, petro-chemical and oil & gas industries with a range of pilot-operated, spring-loaded safety relief and thermal relief valves for more than 100 years.

  They pride themselves on a tradition of reliability and quality-consciousness, and selected the Hoke Gyrolok range of compression tube fittings as their standard on the company’s new pilot-operated relief valve line.
  A policy of continuous improvement ensures that IMI Bailey Birkett valves will always meet current legislative

requirements including ISO 9001, ISO 4126, ASME VIII, TUV, NACE and DNV to name just a few.
   To maintain their high quality standards they required a high quality fitting supplier, and Hoke fit the bill exactly. Also contributing to the choice of Hoke were the unique features of the Gyrolok fitting including:
    • Controlled ferrule drive to improve remake life.
    • Butt-seal to provide secondary seal.
    • Gyrogage to ensure proper fitting make-up.
  The IMI Bailey Birkett Safeset pilot operated valve is available in a variety of sizes from 1in x 2in to 8in x 10in. Pressure ratings up to 6,525 psig and temperature ranges of
-40°C to +260°C are also available.

For over 25 years Cambridge-based Michell Instruments has produced high specification dewpoint meters and moisture analyzers for many process applications, ranging from natural gas processing and distribution to automotive, power generation, aerospace and defense.
Any industrial or scientific process that uses air or gas could benefit from precise control of the humidity in that gas.
Hoke Gyrolok compression fittings and GO pressure regulators supplied by CIRCOR International are used in the production of Michell’s high integrity hygrometer sampling systems.
Designed to customer order, these systems are suitable for high-pressure applications in the natural gas industry as well as for critical moisture analysis in high purity gas systems such



as those used by major gas producers.
As a supplier of hygrometers and calibration systems to blue chip industry and National Standards laboratories, Michell demands the best quality and performance from its own supply partners.

Hoke and DuPont extend
long-term Alliance Agreement


Hoke and DuPont have extended their Alliance Agreement SAA # 0893-550L through to August 31, 2002. Since starting in1993, this agreement has been extremely beneficial to both companies.
  DuPont has enjoyed outstanding cost-savings at the sites taking advantage of the packages offered by Hoke. Apart from the significant business volume for Hoke, the relationship has benefited Hoke and its worldwide customer base in other ways.
  Co-operative efforts have led, for example, to the development of Hoke’s highly regarded Fitting Installation Workshop package, the Gyrogage Inspection Tool and product enhancements such as expanded temperature ratings recently announced for many Hoke ball valves.
  The agreement extension leads both DuPont and Hoke to anticipate even greater benefits in the coming years.

 
 
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