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Crimp - Tite®
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Crimped Fitting Technology For Braided Metal Hose- Crimp-Tite®

Distributer Features & Benifits  |  End User Features & Benifits  |  Process |   Verification

A new, patented crimp-style fitting system that will allow distributors to attract customers in new markets and service existing accounts with this new capability.

Make inherently reliable hose assemblies
Eliminate welding and associated costs
Achieve faster production with consistent results

The Crimp-Tite® process is a repeatable process able to consistently produce reliable hose assemblies efficiently and economically.

 


Distributor / Fabricator - Features and Benifits

Hose assemblies are inherently reliable.
  They do not depend on the skill of the welder.
Welding equipment and expertise not required.
Expendable materials (gas, rod, etc.) no longer required.
• Eliminates scrap generated by improper welding.
• No cost for producing and maintaining weld standards and requirements,
  documentation, or on-going and certification of welders.
• Requires minimal training expense to produce a consistently high-quality product.
Facilitates cross-training of employees.
More output per employee hour - production time is reduced by up to 66%.
Objective dimensional inspection and testing.
• Crimp process consistent with hydraulic-process methods.


End-User Features and Benefits

Consistent results. Does not depend on the consistent application of a welder's skill.
Hose life is extended and costs are reduced because no heat is applied to metal.
  Without a heat-affected zone there is no metal embrittlement to cause flexing failures.
Faster delivery. Production time is five times faster than welding.
Higher durability and increased corrosion resistance than welded assemblies.
  Presents an alternative for many industrial applications.
A premium-grade hose solution at considerable cost savings compared to using
  non-metalic or fluoropolymer plastic products.

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How the Crimp-Tite® Process Works

The Crmp-Tite® process incorporates four components: fitting insert(stem), crimp ferrule (collar), composite rubber seal and Crimp-Tite® braided metal hose. The fitting stem and the collar are positively locked together during radial-compression crimping. This method of attachment enables the hose assembly to be used to the maximum working pressure of the particular hose style and size. Hose pressure ratings are based on a minimum 4:1 safety ratio, burst to operating pressure.

A fluoroelastomeric seal provides the broadest resistance to chemical and thermal deterioration, although seal material can vary depending upon operation temperature and flow media. Seals made from buna and silicone have been tested with the same results as the fluoroelastomer at the ambient temperature.

The seal is molded into a shape to fit the hose convolution geometry (illustration above). First, the barbed stem is inserted into the inside diameter of the seal. The barbs lock onto the seal making it difficult to remove. then, the crimp collar (with circumferential grooves on the I. D.) is pulled on to the O. D. of the braided hose assembly and the stem and the collar are threaded together. Once the fitting is assembled, the collar is crimped 360° to form a positively locked system with the hose, braid and seal compressed between the barbs on the stem and the grooves in the collar. The stem and the collar are positively locked to assure a tight liquid / gas seal.

The initial fitting system is made to allow many standard end attachments (JIC, female coupling, floating-flange stub end or union). The fitting components and seal are designed to mate with a specific Crimp-Tite® hose style. The fitting system is not interchangeable between hoses with different I. D. and O. D. dimensions. The Crimp-Tite® system is a certified system using certified components. Only authorized distributors are permitted to package and promote the system.

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Crimp-Tite® Verification Tests

Pressure Test (Hydrostatic @ 70 F) - Crimp-Tite® assemblies test higher for burst pressures than assemblies due to absence of heat-affected areas from welding.

Low-Pressure Pneumatic Test (Nitrogen Bubble at 30 psi) No leaks

Ultra-high Vacuum test with Helium No leaks at 1 x 10-9 cc/sec

Impulse Test (Hydraulic oil alternation between 0 and 375 psi at 27 cycles/min) - Exceeded 150,000 cycles

ISO 10380 (Cantilever and U-Bend test) Exceeded requirements

Saturated Steam (Duration: 312 hours; Temperature Range: 450 to 525°F; Pressure Range: 422 to 847 psi) - No Leaks

Crimp-Tite® 321SS Metal Hose with Braid

   




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