Tenders are invited for Dismantling, Shifting of screw conveyor inside the mills, Re-erection including tie rods, Screw conveyor bearing housing and stuffing box
and replacement of eroded feed pipe, Mixing box and transition piece with new spares, Replacement and rectification of screw conveyor removable shaft of unit-5&6 mills during annual overhaul period 2018-19.
Specially selected packing that is designed to deform and fill all voids in the annulus of the stuffing box
between the bore and the sleeve also plays a critical role in reducing the amount of seal water leaking into the environment," the report stated.
In addition to mechanical seals and seal supply systems for pumps, agitators and compressors, EagleBurgmann's portfolio also comprises magnetic and diaphragm couplings, metal bellows, carbon floating ring seals, expansion joints and gaskets, stuffing box
packings and special products like marine seals and sealing systems for rotating tubular kilns as well as a whole range of comprehensive seal services, substantiates Rabih AbdulQader, sales director at EagleBurgmann Middle East.
Okularczyk  set up a stuffing box
(packing box) packing test in a water hydraulic system and obtained variable friction coefficients for guide rings made of a PTFE composite when the piston rod velocitywas altered.
These valves allow for zero emissions, and are ideal for applications where packed valves may not reliably contain light gases or hazardous system fluids, due to leakage in the stem/packing seal area or stuffing box
wall/ packing seal area.
Other features include an adjustable suction seal ring that allows adjustment while the pump is running, compensates for wear and maintains optimum impeller clearance for peak performance; a split stuffing box
that improves accessibility for easier and faster packing maintenance; and dual impeller adjustment for quick, easy access to perform impeller corrections.
A Thermocouple, located by the stuffing box
, signals when the set-point has been reached and the pumped fluid (such as asphalt or bitumen) is in a liquid state and therefore ready for pumping.
Easy serviceability, with a unique suction seal ring that can be adjusted while the pump is running to maintain optimal impeller clearance and a split stuffing box
for packing maintenance.
Quadna redesigned the mixer stuffing box
for a John Crane Type 3740D cartridge split seal using the Vespel sleeve bearing.
AxFlow also took the opportunity to convert the upper stuffing box
to a split semi-cartridge mechanical seal in order to allow easy replacement without there being a need to remove the motor, bearing and coupling.
And with the exception of a few newer materials," adds Jana, "that's still usually the way it's done: a drippy old stuffing box
squeezing a hard-to-turn shaft.
The static and sliding surface of the traditional stuffing box
are effectively interchanged, with the advantage than the geometry if the sliding sealing surface can now be produced more accurately and less expansively and there is no longer any wear on the shaft or shaft sleeve.