TPi January 2008

f i t t ings feature on . . .

Instrumentation fittings for leak-proof connection

Brennan Industries Inc, USA, is an international supplier of hydraulic fittings and adapters. Supplying a wide range of industries throughout the world, Brennan offers more than 20,000 standard and special products in sizes ranging from 1 / 8 " to 2 1 / 2 ". Most products are available in carbon steel, stainless steel and brass, and meet or exceed JIC, SAE and other specifications. The company offers a line of high- quality double ferrule instrumentation grade tube fittings that provide leak- proof and torque-free seals at all tubing connections. The tube fitting line reduces the chance of hazardous and expensive leaks in instrumentation, process, pneumatic, hydraulic, gas and other tubing systems.

It consists of the nut, the back ferrule, the front ferrule and the body, and when installed becomes a five-piece connection with the addition of the tubing providing a solid leak-free joint. The two ferrules are tightly swaged around the tube, and the lack of initial strain on the tubing ensures no tubing wall damage. Leaks are prevented because there is an axial movement along the tube instead of a rotary motion creating the joint. This axial movement prevents torque from being transmitted from the fitting to the tubing. The fittings are resistant to temperature change, do not significantly reduce flow area, and work with a variety of tube materials. In addition, the two ferrule action supersedes variations in wall thickness, hardness and dimensional tolerance of tubes, compensating for most variables that lead to failure with other fittings. The double ferrule compression tube fittings can be remade several times, and can withstand heavy impulse and vibration in both vacuum and pressure systems. Requiring no special tools for installation or torque for initial make

A selection of metric bite-type hydraulic fittings p

up and using only geometry, the fitting requires 1 1 / 4 turns to be tightly fitted.

Brennan also offers a line of metric bite-type hydraulic fittings, available in all popular styles and sizes. The range of more than 260 fittings is built for extreme pressure applications. The fittings are manufactured to the highest standards and are approved by all major certifying agencies. The company also supplies a range of steel and stainless steel bite-type compression fittings, designed for both hydraulic and pneumatic applications, and available in 35 standard configurations. Custom sizes and configurations are also available upon request. The fittings are suitable for indoor use and non- corrosive environments in OEM and Brennan’s compression fittings are designed for hydraulic and pneumatic applications q

Leak-proof fittings from Brennan Industries q

Butt-welding fittings from Austria Erne Fittings, Austria, is a manufacturer and supplier of butt-welding fittings such as elbows, tees and reducers, from ½" (20mm) to 36" (914mm) external diameter and wall thicknesses up to 50mm, made of alloyed, unalloyed steels and exotic materials.

The company offers expertise in butt-welding fittings made of carbon, alloyed and stainless steel. Production takes place in the firm’s three plants in Austria and Germany, where special demands for short production times can be accommodated. The company has a well-stocked finished product warehouse, which features a high degree of product availability.

Erne Fittings produces butt-welding fittings up to 36" in diameter

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Erne products are used worldwide, in power stations, oil and gas fields, pipelines, refineries, chemical plants, ships and other areas of industry.

Erne Fittings GmbH – Austria office@ernefittings.com • www.ernefittings.com

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Tube Products International January 2008

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