P
P
a
a
g
g
e
e
3
3
6
6
i) Terminology.
a) "Quench"
-
To provide a liquid barrier, which is not, induced to flow through the seal
area by any external means.
b) "Flush"
-
To provide a liquid barrier that is induced to flow through the seal area
by an external means.
ii) Quench or Flush Media.
The media used for quenching or flushing a seal area must be fully compatible
with the pumped media, and the relevant materials of construction of the
pump.
Special consideration must be given to the temperature limitations of the
media to ensure that no hazards are created, e.g. risk of fire or explosion.
This seal arrangement requires a supply of media to the outboard side of the
mechanical seal to quench or flush the seal area. The nature of the pumped
media and the specific duty conditions will determine whether a 'quench' or
'flush' is required.
A quench provides a static head. The media vessel should be mounted a
minimum of 1.5 feet above the pump, preferably directly above the seal area.
The interconnecting pipework should be as straight as possible, avoiding
horizontal runs, and with the minimum number of bends and restrictions.
For a suitable flush, the media must be supplied at a flow rate of three litres
per minute per shaft seal (0.8 US Gal per min).
Note: The limiting 'flush' or 'quench' pressure in any application is 0.5
bar (7 psi).
W
W
A
A
R
R
N
N
I
I
N
N
G
G
W
W
A
A
R
R
N
N
I
I
N
N
G
G
Содержание Wright Flow Technologies RTP Series
Страница 1: ...P Pa ag ge e 0 0 INSTALLATION OPERATION AND MAINTENANCE MANUAL FOR THE RANGE OF PUMPS...
Страница 47: ...P Pa ag ge e 4 46 6 5 0 Specifications 5 1 Clearance Chart B A C Radial D C Radial...
Страница 51: ...P Pa ag ge e 5 50 0 B B 100 mm or 4 PORT 80 mm or 3 PORT 5 5 RTP30 Foundation Dimensions Stub Shaft Drive...
Страница 54: ...P Pa ag ge e 5 53 3 5 6 Typical Basic Pump Build RTP20 Shown...
Страница 56: ...P Pa ag ge e 5 55 5 5 8 RTPTM Service History Pump Serial No Date Comments...