Mode Of Operation - SPX APV DELTA SWmini4 Operating Manual

SWmini4-UK0.qxd / 08.2004
Shut-off valve
yoke
Change-over valve
actuator
yoke
lower
valve housing
3
3.

Mode of Operation

The Shut-Off and Change-Over Valves DELTA SWmini4
(DN10, 15, 20) have been developed for the use in the brewing
and beverage industries, in dairy and food applications as
well as for the chemical and pharmaceutical industries.
The valves are designed for universal applications and stand
out for their increased mechanical reliability and absolute ease
actuator
of handling.
The function of the DELTA SWmini4 valve is to shut off and
to change over line sections.
A
- Operation by pneumatic actuator with air connection at (A),
reset by spring force.
optical
valve position
- By different assembly of the actuator, the following designs
indicator
are possible:
NC (FS):
NO (FH):
(illustrations show NC design)
valve housing
- The inner parts of the actuator are maitenance-free.
- As standard, the valves are manufactured without support
for proximity switches.
- The valve position is indicated optically in the yoke area.
Indication in the upper yoke bore:
Valve position closed NC (FS).
- The cleaning of the inner area of the valve is carried out during
cleaning of the line system.
A
optical
valve position
indicator
upper
valve housing
actuator normally closed
actuator normally open
(air-to-lower, spring-to-raise)
UK
(air-to-raise, spring-to-lower)
Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0