551 MECHANICAL SEAL
The design :-
The hydraulic balance calculated in design the
551 mechanical seal, the 551 didn't need steps in shaft or
* The 551 design for pressure up to 40 bar, we
can make any design used for pressure more then 40 bar.
* The 551 installation with very facility in
pump's limited stuffing box, without steps in shaft or sleeve.
And 551 tighten with or sleeve directly.
* the 551 enjoy with long length press (approx.
length) it equals 200% comparative another similar. These
approx. length needs technique men to installation of mechanical
seal in pumps, these especially for 551 enjoys similar types
* simple design, hydraulically balanced multi
spring mechanical seal that design reductions pressure presses
on faces of mechanical seal that to avoid produce temperature or
corrosion on faces
Long serve time processing more than another
similar as 551 self quench within processing dependent on way
centrifugal force and 551 opened vertical for quench.
* the 551 manufactured from material AISI 316L
without any thin parts for more safety
* All its parts can be exchangeable, maintenance
Operating conditions of mechanical seal
High pressure high temperature
In suction pear pressure up to 20 bar in
internal mounted installation, or 5 bar in external mounted
installation In loading up to 40 bar in internal mounted
installation, or 13 bar in external mounted installation.
Temperature, the 551 service efficiency
in any temperatures :-
The 551 service up to 35 meters/second without
fatigue as it excluded any thin parts.
The 551 is
the best processing used for high temperature in hydrocarbons
liquids or heat exchanges liquids in chemical liquids used for
Materials of 551:
The 551 is
standard and manufactured from materials AIS316L, spring
materials Haste alloy C, gasket materials made from Grafoil,
rotary seal face material carbon graphite antimony impregnated
or silicon carbide, tungsten carbide or alloy stellite
accept installation on shaft or sleeve directly in horizontal
pumps whichever single pump or double pump or vertical
processing pumps, it's suitable for one open end or double ends
pumps, and also it is suitable for limited stuffing box length.
The 551 mech. seal accepted
tungsten carbide, silicon carbide or alloy stellite, its also
accept any shapes seat standard, CS, DA, din 24960,A and other