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Instrument Fittings

Technical Information from Hoke

The Issue of Interchangeability - Gyrolok tube fittings are designed to be interchangeable. Hoke guarantees the functional Interchangeability of HOKE Gyrolok® fittings with similar fittings of certain other manufacturers, including Swagelok®, Parker A-LOK®, and Parker CPI™.

Training and Engineering Support - HOKE offers extensive training designed to ensure that your craftspeople thoroughly understand how a HOKE Gyrolok® fitting functions. By teaching proper tubing preparation and installation procedures, maximum performance is assured.Ask your HOKE distributor for details regarding HOKE's valve and fitting installation workshop and additional support materials.

Hoke Gyrolok® Tubing Data Charts - These charts are very useful and contain information on design, type of tubing, tubing preparation, calculating Yield, Burst, and Maximum Allowable Working Pressures, Maximum Allowable Stress Values for Material at Various Temperatures, Stainless Steel Calculation Factor Tables, Maximum Working/Burst Pressures and Tubing Tolerances

Hoke Precision Instrument Pipe Fittings  - Looking for a high precision fitting manufactured with high quality NPT threads? 

The HOKE Gyrolok Design - HOKE Gyrolok® Tube Fittings have been carefully designed and manufactured to provide a wide range of outstanding leak-tight application capabilities, this bulletin details the features.

Gyrolok® Features and Benefits - This bulletin details the extensive features.

HOKE Gyrolok® Flanges - These Flanges are an excellent way of increasing your plant integrity. Gyrolok® flanges provide a simple, safe interface between pipe flanges and instrument fittings, eliminating the need for pipe threading or welding.

Hoke Gyrolok® Safety Instructions - These instructions are a must when designing, installing, commissioning and maintaining Hoke Gyrolok® fittings.

Gyrolok® Tools and Accessories - The Gyrogage and presetting tool are really useful tools for ensuring correct makeup of Gyrolok® fittings.

Checking for Fitting Leaks? - "Leak detective" has the answer.

Need an insulated fitting solution in a Cathodic Protection System? - These dielectric tube fittings are for use in applications where electrical current flowing through a pipe or tube line must be interrupted to protect vital instrumentation and metering equipment. Commonly used in the Natural Gas Transmission industry, the dielectric fitting will prevent current flow resulting from Impressed Current Cathodic Protection Systems, static electricity or even lightning strikes, from reaching sensitive monitoring station equipment.

Other data can be found at our sponsor http://www.hoke.com/ , some valuable technical information can be found here.

10.09 The Power of Speed - One Company’s Journey towards Operational Excellence - Whilst not really about Instrument Fittings this excellent article by Jon Weldon is worth a read and just shows why CIRCOR is at the forefront in terms of Instrument Valves and Fittings - In today’s tough economic times and changing market dynamics, the challenge is to continue to optimize costs, while maintaining high quality and providing short lead times.  For companies like this, the operational goal can be summed up in one word: SPEED.

Just click on the super ICEweb links below for technical information on Instrument Tubing and Fittings.

Technical Information

Great technical information from our sponsors PROCHEM PIPELINE PRODUCTS
 Axiswage
Ball Valves
Branch Fittings
BSP Fittings
Bu Tech High pressure components
Buttweld Fittings
Conversion Chart
Duplex
Flanges
JIC Fittings
Gyrolok Twin Ferrule Tube Fittings
Heat Exchanger, Condensor & Boiling Tubes
Hygienic and Tube
Indent Service
Manual Sample Systems
NPT Fittings
3.09 O'Brien Tracepak
3.09 O'Brien Analytical
3.09 Offshore Oil and Gas Speciality Valves - Pacson Valves
3.09 Offshore Oil and Gas Speciality Valves - ATC Actuators
3.09 Specialist Valving Solutions - BSM
Pipe and Tube
Prochem Customised Manufacturing
Pyplok
Saflok Couplers, Y-type Strainer and Swing Check Valves
Selection of Materials
Socketweld Fittings
Stainless Steel Tube 
Stainless Steel Tube, Saddles and Leak Check
Stainless Steel Tube Chart - Tube weights and working pressures
Swage and Pipe Nipples and S/S Shim
Teflon Lined Braided Hoses
Useful Facts About Stainless Steel
10,000psi Fittings Specification


Other Useful Fitting Information

The following excellent links are compliments of Glastonbury Southern Gage.

The following technical links are available via Swagelok
Tubing data
Valve Sizing
An Installer’s Pocket Guide for Swagelok® Tube Fittings
Thread and End Connection Identification Guide - a 56 page document from Swagelok.
The Swagelok Tube Fitters Manual by F.J. Callahan is an excellent publication which should be available from your regional Swagelok distributor.

Understanding GO/NO GO Gauges - (Fixed Limit Gauging) - One of the most frequent questions that we are asked at  is, "how do I choose a plug gauge for my measurement application." Therefore I put together this document to help you understand the concept of fixed limit gauging. From A.A. Jansson.