BA50E103
Issue 02-06
REV2
ERHARD-Armaturen
x
D-89502 Heidenheim
x
Postfach 1280
Phone +49 (0)7321 320-0
+49 (0)7321 320-525
e-mail: info
@
erhard.de Internet: http://www.erhard.de
Page 1/13
BA50E103
Operating Instructions
ROCO
Butterfly Valve
with SKG Slider-crank Mechanism,
with Electric Multi-turn Actuator
These operating instructions must always be used in combination with operating
instructions BA01E001!
1 Product and Performance Description
1.1 Product Description
ROCO Butterfly Valve
to DIN 3354, part 2
with flanges, double-offset shaft bearing, resilient-seated, tightly closing, of ductile cast
iron.
Operation by SKG slider-crank mechanism by means of handwheel, extension stem,
underground installation set, chain wheel, electric multi-turn actuator.
Nominal sizes: DN 150, 200, 250, 300, 350, 400, 450, 500, 600
Pressure ratings: PN 10, 16
Prod. No.:
5064 ....
PN 10
5065 ....
PN 16
5061 ....
PN 16/GN 10
1.2 Performance Description (see fig. 1)
A valve disc (3) hinged in the body (1) is moved through an actuating shaft (7) which
protrudes into a laterally mounted part-turn gearbox. The pipeline is isolated, when the
valve disc is vertical to the flow direction. Tight closure on the seat in the body is achieved
by a sealing element (profile sealing ring). The travel between ”OPEN” and ”CLOSED”
position (90° swinging movement) is limited by means of stop nuts on the actuating stem of
the attached part-turn gearbox. Normally, the valve closes in clockwise direction (turning
the handwheel to the right).
1 Product and Performance Description
2 Design Features of ROCO Butterfly Valve
3 Installation in the Pipeline
4 Initial Operation
5 Operation and Application
6 Maintenance
7 SKG Slider-crank Mechanism
8 Electric Multi-turn Actuator
