DMN BL300 - Explosion-Proof Rotary valves; ATEX approved Autonomous protective system

DMN-WESTINGHOUSE Explosion-Proof Rotary Valves
Code: RV-Ex.pro-E.B.01.D 05-2016
8
2. Explosion-Proof Rotary valves
2.1. ATEX approved Autonomous protective system.
The following table shows the valve types that can be used as autonomous protective
system:
Executions
Type
Size
Dust-
class
Max.
Clearance
Standard
Easy
detachable
MZC
Dairy
Dairy MZC
AL
150-175-200
250-300-350
St.1
 0.2mm
1
1D
1MZC
AML
150-200-250
300-350
2
2D
2MZC
BL
150-175-200
250-300-350
3N
3ND
3NMZC
AL
400-450-500
 0.3mm
3C
3CD
3CMZC
AL
150
St. 2
< 0.15mm
4C
4CD
4CMZC
4TCO
4TCOD
4TCOMZC
4TS
4TSD
4TSMZC
AL
150-175-200
250-300
St1.
 0.2mm
DAI
DMZC
BL
150-175-200
250-300
AML
150-200-250
300-350
ML
150
St1.
 0.2mm
1
MLD
150
2
3N
3C
4C
These valves correspond to the design requirements of device group II
D
II 1D/ 2 GD c
1D Internal Rotary valve
Zone 20-21-22
2 GD External Rotary valve
Zone 1-21
 2GD for the external of the valve if mounted with direct drive or with a brass
chain guard with chain tensioner.
D
II 1D/ 3 GD c
1D Internal Rotary valve
Zone 20-21-22
3 GD External Rotary valve
Zone 2-22
 3GD for the external of the valve if mounted with direct drive or standard mild
steel chain guard.
D
II 1D/ - c
1D Internal Rotary valve
Zone 20-21-22
- External Rotary valve
No Zone