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Bulkhead Lock Nut

Bulkhead Lock Nut
Bulkhead Lock Nut
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Product Code : 131
Product Description
Product Details:
Material ProcurementSupplier End
Location TypeIndustrial
Although the  fittings  consist of  four components: Nut,  back ferrule, front  ferrule and the  body,  it becomes  a  four piece connection when affixed to tubing. The two ferrule design and sequential action of the fittings overcome in-variation of tube wall thickness and hardness to assure safe, reliable, leak-free connections PMT tube fittings are easily installed without any  special  tools.  The  front  ferrule  swages  onto  the  tube  as  it  moves  down  the  cone  of  the  body  creating  a pressure/vacuum tight seal on both tube and body by interface pressure and surface finish of matching components. The back ferrule, deforms into the tube creating a strong mechanical and anti-vibration hold on the tube. The internal diameter of body  and  nut are closely controlled which  constrain  the tube within a close tolerance  of  its axis  ensuring  accurate alignment within the assembled fitting. In case of S.S. tube fittings high hardness of ferrules of ferrules is assured / maintained (more than Rd 90 ) For reliable joints the positive tolerances on inside diameter of ferrules and body is kept to minimum. The nut threads are silver coated to ensure no galling
 
Thus the design features on the tube end side can be summarised as below. 
1)    The back ferrule dampens the tube circuit vibration through a spring like action. Further more, it prevents a carry over of tightening torque from the fitting nut to front ferrule 
2)    The front ferrule circumferentially seals the surface between the tube and fitting. The inner taper of front ferrule is pressed on the tube so that a pressure tight impression is formed. 
3)    Silvering of nut threads prevents seizing/galling. This allows repeated use of fittings. 
4)    A deep body bore on tube side and taper, guarantees accurate positioning and centering of tube. The   twin ferrule connection does not in any way reduce the strength of the tube and therefore tube having thin wall PMT twin ferrule connection does not in any way reduce the strength of the tube and therefore tube having thin wallcan be used without affecting the safety of installation.

SHREEMARUTI INSTRUMENT PVT. LTD.
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