3. Mode of operation
3
UK
The DKRT 2 double-seat ball valve was particularly developed for
the use in applications in which product safety against intermixing
is of highest priority.
Low tank outlet heights through compact constructions, unreduced
flow capacities through pipe diameter - sized balls and double-seal
technology guarantee a safe and product-gentle function.
- Actuation of the pneumatic turning actuator with air connection at
(A) drives the valve into the position "open". Reset into the limit
position "closed" by spring force.
- In closed position two line sections with different liquids (B and C)
are separated by two independently acting seals.
The intervening leakage chamber is open to the atmosphere
through the free drain (D).
- In open position the liquid flows through the free opening cross
section of the smooth valve passage. No inversion of the liquid
flow in the valve area.
- In closed and open operating position cleaning liquid can be
injected at the CIP connection at (E) to clean the leakage chamber.
- During the operating process, operating leakages bleed from the
leakage drain (D) downwards. If a cleaning line is not connected,
the cleaning connection (E) must be sealed by a plug or operating
leakages must be discharged.
- The cleaning connection (E) can be used to vent the leakage
chamber for a faster emptying or to sterilize the leakage chamber
with steam.
Double - Seat Ball Valve DELTA DKRT 2
Tank Outlet Valve
Operating Manual : Rev. 4
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