Composition
The packing MG 780R is manufactured by MONTERO from pure expanded mineral graphite of
the highest quality with corrosion inhibitor and a feinforced wire.
Gland packing MG 780R has got API 607 FIRE SAFE TEST APPROVAL ( API 589 4th fire safe test
approval ) that allows its use in valves of high responsiblity.
The advantages of expanded mineral graphite are its flexibility, compressibility and ignifuge, It has
got a excellent chemical resistance to most of the fluids and its perid of stock is unlimited. It is available with carbon insertion reference MG 780-C
Where there is a possibility of extrusion, the use of our anti-extrusion rings (our ref. MG-420) is
recommended.
To obtain high pressure resistance for its use in valves, we add to the braiding inconel threads of
0.1 mm. diameter reducing in this way the posibility of the braiding expansion.
