Range Of Application; Accessories - SFA SANIPUMP ZFS 71 Manual De Instrucciones

Materials
Motor housing
Pump housing
Cutting flange
Cutting knife
Auxiliary bearing flange

2.4 Range of application

The submersible waste water pumps of the type series SANIPUMP
sewage and wastewater tanks, excrement collection pits, sewage plants and the like in explosion-prone
areas.
In this context, the following has to be pointed out (Excerpt from DIN VDE 0165):
For the installation of electrical systems in explosion-prone areas, the "directive about electrical
installations in ex-plosion-prone areas" (ElexV) applies. Amongst other things, this directive regulates
the question of permitting ex-plosion-protected electrical equipment and the responsibility (admission) of
experts. (DIN VDE 0165 1.2)
When assessing the risk of explosion, that means when explosion-prone areas are defined, the „directives
for the avoidance of dangers caused by a potentially explosive atmosphere with collection of examples
– guideline on protection against explosion – (EX-RL)" are to be taken into account. If it is a matter of
special cases, or if there are doubts about the definition of explosion-prone areas, the supervisory
authority has to decide. (DIN VDE 0165 1.1.2)
In case of medical areas, the DIN VDE 0107 (DIN VDE 0165 1.2) applies.
In case of the installation of electrical systems in areas which are endangered by explosive materials,
the DIN VDE 0166 (DIN VDE 0165 1.3) applies.
In case of the operation of electrical systems in explosion-prone areas, the DIN VDE 0105 part 9 (DIN
VDE 0165 1.4) applies.
This regulation does not apply for the installation of electrical systems in mine openings which can be
endangered by mine gas. Here, the norms of the set DIN VDE 0118 „Installation of electrical systems in
underground mining companies" (DIN VDE 0165 1.5) apply.
Terms:
- "Explosion-prone areas" are areas in which an explosive atmosphere can occur in endangering
quantities (dangerous explosive atmosphere) due to the local and operational circumstances (explosion
hazard) (DIN VDE 0165 2.1).
- "Explosive atmosphere" is a conglomerate of inflammable gases, vapours, mists or dusts including the
common additives (e.g. humidity) under atmospheric conditions, inside which a reaction independently
reproduces itself after ignition. Atmospheric conditions are total pressures of 0.8 to 1.1 bar and
conglomerate temperatures of -20 to +60°C. (DIN VDE 0165 2.2)
Please always refer to the national standards in force.

2.5 Accessories

All pumps of the type series SANIPUMP
end. Switching devices for pumps with explosion protection are available as standard or special models
with various level control systems.
For the installation of the pump, a supporting ring (primarily for transportable operation) or a coupling
device (stationary operation) is available.
Motor shaft
GG 20
Bearing flange
GG 20
Impeller
1.4112
Other seals
1.4112
Floating-ring type shaft seal
St 37-2
ZFS 71 are delivered with 10 m of cable and free cable
®
1.4021
GG 20
GG 20
NBR, FPM
SiC (silicon carbide)
ZFS 71 are used for the drainage of
®
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