28
Operating maual mechanical seal
Rev. 0, 13.02.2004
OPERATING MANUAL
BURGMANN MECHANICAL (M.S.)
H75N
PLEASE READ t
his manual carefully and
OBSERVE the
information contained as to:
H
Safety
H
Storage
H
Installation
H
Start up
H
Maintenance
H
Repair
J
SAFETY
Any person in the operator’s plant who is involved in the installa-
tion, removal, operation, commissioning and maintenance of
the mechanical seal must have read and thoroughly under-
stood these operating instructions, particularly the safety in-
structions contained therein. It is advisable for the operator to
have this confirmed.
The mechanical seal is a precision product (ISO 9001) and safe
to operate. However, they may constitute a hazard if they are
not used in accordance with their designated use, or if operated
improperly by unskilled personnel.
The operator has to determine the consequences of any me-
chanical seal failure and decide whether safety precautions
need to be taken to protect personnel or the environment.
The pump shall be installed in such a way that any fluid spurting
out cannot cause personal injury and that leakage can be pro-
perly disposed of.
Any operating mode liable to impair the safe and reliable func-
tion of the mechanical seal is not permitted.
Mechanical seals shall only be installed, operated, removed or
repaired by authorized, qualified and appropriately instructed
personnel.
Any work on the mechanical seal shall only be performed with
the pump shut down and the pump pressure released.
Staff responsibilities for the work involved must be clearly defi-
ned and complied with, to prevent unclear competencies with
regard to safety aspects..
In addition to the instructions contained in this manual, the ge-
neral occupational health and safety regulations must be adhe-
red to.
Unauthorized modifications and alterations liable to jeopardize
the safe operation of the mechanical seal are not permitted.
J
DECLARATION
within the meaning of EC Directive ”Machinery” 98/37/EC.
A mechanical seal does not function independently. It is inten-
ded to be incorporated into or assembled with machinery.
J
OPERATING LIMITS
Shaft diameter dw:
28 to 100 mm
Press. to be sealed off p max.:
40 bar
*)
Fluid temperature t:
--40 to 220
°
C
Sliding velocity vg:
20 m/s
*)
depending on the seal face materials
The mechanical seal shall not be operated at several applica-
tion limits at the same time.
Higher loads (pressure, temperature, speed) may lead to in-
creased wear and damage the contact faces or the elastomer
elements.
Such operating conditions would shorten the useful life of the
seal but also entail the risk of sudden seal failure with hazards
to personnel and the environment.
J
SPECIFICATION
The operating data for the application in question, such as fluid
to be sealed off, operating pressure, operating temperature, ro-
tational speed, etc., are indicated on the respective pump data
sheets.
J
DESIGNATED USE
Any operation outside the operating conditions stated in the
”Operating Limits” section is deemed to be non--conforming
with the designated use.
To ensure safe operation of the mechanical seal, check with the
seal manufacturer before using the seal for other operating
conditions or in a different location of operation.
J
MATERIALS
Materials as per drawing and/or order.
J
DRAWINGS
General assembly drawing of pump.
The applicable design is shown on the general pump drawing
in the original scale and latest revision, see section 9 of the
pump’s operating manual, which shall be used in conjunction
with this document.
J
SPECIFICATION
H
Single mechanical seal
H
Balanced
H
Bi--rotational
H
Rotating spring--loaded ring
H
Stationary seat ring
