Viking SLAL - Manual (Page 4)

fIGURE 1
fIGURE 2
Equipment-groups (Annex I of the EC-Directive 94/9/EC)
Group I
(mines, mine gas & dust)
Group II
(other explosive atmospheres gas/dust)
Category M Category 1 Category 2 Category 3
1 2
G
(gas)
(Zone 0)
D
(dust)
(Zone 20)
G
(gas)
(Zone 1)
D
(dust)
(Zone 21)
G
(gas)
(Zone 2)
D
(dust)
(Zone 22)
for equipment
providing a
very high level
of protection
when
endangered by
an explosive
atmosphere
for equipment
providing a
high level of
protection when
likely to
be endangered
by an explosive
atmosphere
for equipment providing
a very high level of
protection when used
in areas where an
explosive atmosphere
is very likely to occur
for equipment providing
a high level of
protection when used
in areas where an
explosive atmosphere
is likely to occur
for equipment providing
a normal level of
protection when used
in areas where an
explosive atmosphere
is less likely to occur
fIGURE 4
EG. 123456/a/04
SECTION TSM 288 ISSUE A PAGE 4 OF 36
seals/area behind the rotor retainers including the threads in
the shafts should be inspected for seal deterioration or product
contamination. If any is found then the pump head should be
fully disassembled, cleaned and sanitized using a combination
of appropriate cleaning solutions and brushes and new seals
installed. Refer to Section 5 for seal assembly instructions.
It is recommended that the exterior of the pump be cleaned
periodically with a non-aggressive, non-abrasive cleaning
solution.
2.5 PUMP MOdEl dEsIGNaTION
The designations of pump models are as follows:
SLAS SLBS SLCS SLDS SLES SLFS SLGS
SLAL SLBL SLCL SLDL SLEL SLFL SLGL
This information, together with the pump serial number, should
be provided when requesting additional information on the
pump or when ordering spare parts. The pump serial number
is stamped on the pump nameplate and the casing, (refer to
section 2.7, Figures 3 and 4).
For the maximum operating pressures, temperatures and
speeds refer to section 3.3, Figure 7.
2.6 aTEX INfORMaTION PlaTE
2.6.1 EQUIPMENT GROUPs &
CaTEGORIEs
2.7 PUMP MOdEl aNd sERIal
NUMbER
Should you require any information regarding your SL Series
rotary lobe pump contact Viking Pump or your Viking Pump
(distributor, providing the pump model and serial number as
stated on the pump nameplate, see Figure 3, which is fixed to
the bearing housing (see Figure 5 for standard pump build).
Should this be damaged or missing, the pump serial number
is also stamped on opposite corners of the casing, (see
Figure 4).
figure 3
Nameplate
VIKING PUMP, INC.
A Unit of IDEX Corporation
CEDAR FALLS, IOWA USA
Phone: (319) 266-1741
Fax: (319) 273-8157