Couplings are best suited for steel, copper or stainless steel tubes where brazing, soldering, welding, flaring or threading is not possible or permissible.

 

To cater all your requirements of spares of Hydraulic & Pneumatic applications from one window, we manufacture many types & designs of fittings and couplings for last 35 years (estd.1970) not only in Steel but also in Brass and Stainless steel. No other manufacturer presents a product line as broad as .  We also design & supply duly assembled, complete lubrication, hydraulic and / or coolant circuits of your machines most economically. The use of modern machines like CNCs and methods combined with the technical know how forms the background for the good reputation of  fluid connectors.

 

 

 

 Fitting is a flare less three-piece design fitting comprising of a Socket bodyhaving a precision conical seat; a one-piece precision machined hardened Progressive Ring (ferrule) and a Coupling Nut.The design of the progressive ring has been further improved and is in developmental stage. The present PR shall be replaced by improved PRA progressively.

 

 

When the Coupling Nut is progressively tightened it makes the Progressive Ring to move on to the tube, which

subsequently makes two 360ºbite into the outside diameter of the pipe, thereby forming a visible collar of material

in front of it at A, ensuring a strong, reliable, an unusually high degree of safety and permanent sealing due to the outstanding construction & design of our progressive ring. A second seal point at B is also created between the now bowed ferrule and the fitting body seat.

 

 

 

Development in hydraulics and our continual R&D led to a constant requirement for optimizing the construction of our cutting ring as shown in the history chart. The raising of test pressure ratings was the deciding factor for the present form of our Progressive Ring (PRA), whose design is superior to that of other couplings. It penetrates to a limited depth only and glides safely and lightly along the well-finished wall of the cone providing a safe metallic seal. The progressive ring in its dismantled state can be turned around while still on the tube.

 

PROFILE RING- PRA:  (with two cutting edges)

 

The new design of PRA  distributes a positive load all over the ring. The sealing

efficiency & the strength increases to a high degree because of 100% connection between the cutting ring and the tube, high tensile strength, large ring contact area     and high strength profile shape.

Remember !The behaviour of cutting rings when excessive tightened results in a power loss of the fitting. The fitting using this profile ring is able to withstand excessive tightening by 1/2  of a turn without significant power loss. With the use of this improved design L - series fittings can be used upto  a nominal pressure of  500 Bars and S - series upto 800 Bars,  provided all  other fittings components are original .

 

 

 

For many years now, there has been an increasing imperative market demand for fluid system components able to guarantee three main factors: Safety, Easy assembly & Leakage free tightness.

 

The new design of Progressive ring PRB, solves the problem of minor losses of tightness, leaks, sweating and loosening of the system-fastening nut. -PRBring is a highly innovative, deformable, double clinching, double edge ring with double elastomer seal which is perfectly interchangeable with all types of rings used on 24º cone fittings comply with DIN 2353 / ISO 8434-1 standards.

 

For further details of this design and its use, please refer to page no. 11.