“Extra-Bonding” provides an added advantage of protection of standard glass components. The major advantage of Extra-Bonding systems is that if the glass is subject to accidental breakage, the bonded wrapping provides additional protection against the risk of injury, release of corrosive fluids or loss of expensive products.
“Extra-Bonding” is a glass reinforced fibre coating which provide a higher level of protection on the glass components. This does have a slightly adverse effect on the transparency of the glass, making it translucent & not transparent.
The permissible operating temperature for Extra-Bonding is 130oC unless limited by the individual operating temperature of the said component.
The permissible operating pressure for Extra-Bonded components is same to that for Standard Glass Components.
Despite the thermal insulating effect of Extra-Bonding, the thermal shock characteristics remain the same as standard glass component.
Tapered glass joints are predominantly used in industrial glass equipments. This design has a high ratio of radial to axial force, which frequently leads to breakage while tightening the flange joints.
A cylinder can withstand a much higher axial force than radial force plus glass has a very high compressive strength. We at Yash Scientific recognized these features and by our innovative design practices developed XTRONG joints. The XTRONG joints are so designed that the harmful radial stresses are dramatically reduced. For a given axial force the radial forces are 14 times lesser than that in tapered joints.
XTRONG joints are practically many times stronger than conventional tapered joints, As far as tightening of joints are concern, it is tested that a XTRONG joints does not break even at a torque of 20Nm, as against tapered joints, which starts breaking at 6-7 Nm torque. At times it may happen that because of over tightening, a metal backing flange breaks or the threads of nutbolts give way but XTRONG glass joint remains intact.
Most of the old glass installations in general contain equipments with tapered glass joints. XTRONG joints are fully compatible with these tapered joints. i.e. an XTRONG equipment can replace another tapered equipment and vice versa in any existing unit. This interchangeability makes XTRONGdesign more adaptable in general conditions and change over cost is negligible.
XTRONG joints have been developed, to arrest the frequent breakage and leakage problems. The XTRONG joints are so designed that the harmful radial stresses are dramatically reduced. For a given axial force the radial forces are 14 times lesser than that in tapered joints.
In addition to reducing the stresses, the XTRONGjoint has the following advantages:
The ovality of the glass flange, present due to manufacturing process, has virtually no effect because the backing flange isn't in direct contact with the periphery.
Continuous re-tightening of the backing flange or insert, due to bolting force & temperature effects, hence dismantling is easy. Also much smaller length threaded bolts are needed compared to the tapered joints.
The XTRONG joint is leak-tight at all design temperatures & pressure, even with temperature cycling and frequent plant start-up as it is possible to tighten the joints upto a tightening torque of 20 Nm as against 6-7 Nm tightening torque in tapered joints. In some cases the metal backing flange breaks but nothing happens to the glass components !
With so many benefits and particularly low breakage risk, we have adopted XTRONG design for all equipments manufactured by us. XTRONGis widely accepted and adopted by users as well as manufacturers of Glass Equipments in India.
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