Rotary valve ZRD 400.1-42-GC DUROPROTECT
Replacement for factory number 101641, in a technically up-to-date version
Deviations:
Size 400 with connection flange DN 350 like the previous model ZPD 480
Overall height 600mm (previous model ZPD 480 750 mm)
Cell wheel volume 42 liters (previous model ZPD 480 76 liters)
deployment data
product coal dust
Bulk density min. 500 kg/m³, max. 600 kg/m³ Grain size min. 0.02 mm, max. 0.2 mm, layout 0.1 mm
Permitted Temperature max. 80 °C
Characteristics Free-flowing, dry, slightly abrasive
Atex zone inside: Zone 20 (II1D), including protection system
outside: zone 2/22 (II3GD)
Product feed Product column as under silo
Product discharge pressureless discharge
Output 20,000 kg/h
Working pressure above: 0 bar, below: 0 bar
interpretation
Cell wheel volume 42 dm³ Filling level (estimated) 75%
Speed 21 rpm
execution
Base lock GC
DUROPROTECT 10
Case: cast iron
Housing bore hard chrome plated DUROCHROM 100µm
drilled according to DIN EN1092-1 PN10
Flanges: inlet: DN 350, outlet: DN 350
blank inside Note: Due to the food application and / or use
in an Atex zone, the usual painting / primer is removed from the steel rotor
and gray cast iron housing (in contact with the product) removed and the parts blank
delivered. The sluice must be provided on site for longer periods of storage
be protected from moisture.
Side cover Side cover: cast iron, inside hard chrome-plated DUROCHROME 60µm
Seal set shaft seal WLF: Viton, for gas flushing
Cell wheel Cell wheel: Steel
Flushing gas piping Gas flushing: completely piped, material: SS
Filter controller type Festo LFR-1/2-D-O-MIDI-T18-EX4
Solenoid valve type Buschjost 8240200.6106 230 VAC II2GD
Customer connection: G 1/2'' (F)
Speed monitor Speed monitor for zone 1/21: Pepperl&Fuchs NJ5-18GK-N, 8VDC, EEXI
II2GD 2-wire
Chain drive fully assembled, for spur gear motor with chain, ratio 1:2
Galvanized steel motor plate, aluminum chain guard
Gear motor spur gear motor SEW R57EDRN90L4 1.5kW 8.4 - 84rpm, II3GD
- Voltage: 230/400V 50Hz
- Protection class IP 55
- including temperature sensor
- International Efficiency Class IE3
- suitable for variable speed (10-100Hz)
- Transducer not included - Connection in delta connection Corner frequency 87Hz
- Choose a higher power level for the converter
- Converter requirement: see technical part, general technical
specification
Certificate of Conformity
Atex lock
Certificate of conformity protection system including zone 20 inside: protection system
according to 2014/34/EU, for dust class St2 (except metal dust),
Device category II1D inside according to 2014/34/EU, and
Explosion pressure shock resistance 10 bar.
The rotary valve can be used for gases in gas classes IIA and IIB
outside and dusts of dust class IIIC inside and outside with a
Limit gap width for dust (Maximum Experimental Safe Gap (MESG) >1.3
mm and meets at least the temperature class T3, provided that the permissible
temperature of the rotary valve does not exceed 170 °C (on offer
expelled).
According to the definition of the ATEX zone outside (see application data)
Can attachments for no or a lower ATEX device category than
the rotary valve must be designed.
