4
APV_DKR2_DE-9_032019.indd
Double Seat Ball Valve
DELTA DKR 2
Instruction Manual: UK - rev. 9
APV
UK
4. Mode of Operation
4.1. Gerneral
Due to the use of high-quality stainless steel and seal materials
complying with the specified requirements, the double seat
ball valve DELTA DKR2 is applicable in the food and beverage
industries as well as in the chemical and pharmaceutical industries.
The field of application of the DELTA DKR2 valve comprises the
separation of two line sections with different fluids (B and C) by two
independent seals with intermediate leakage chamber and free
drain (D) to the atmosphere.
Actuation by the pneumatic turning actuator with air connection at
(A), reset into the limit position "closed" by spring force.
- The free opening cross section has the same dimension as the
nominal diameter of the pipeline.
- Smooth valve passage without diversion of the fluid.
- Cleaning of the leakage chamber by supply of cleaning liquids via
the cleaning connection (E).
- During the operating process, operating leakages drain off from the
leakage drain (D). If a cleaning line is not connected, the cleaning
connection (E) must be sealed by a plug or operating leakages
draining from (E) must be discharged.
- The cleaning nozzle (E) can be used to flush the leakage chamber
with water, or with CIP liquids and clean it with water, for fast
emptying, to vent or to sterilize the leakage chamber with steam.
- DKRX special valves are available, for example for highly viscous
products with extended leakage drain or for horizontal installation.
A
E
B
C
D
F
