SPX APV DELTA DKRT2 Manual de usuario
Read and understand this manual prior to
operating or servicing this product.
Operating Manual
DELTA DKRT2
Double - Seat Ball Valve with Cleaning Connection
Tank Outlet Valve
1
UK
1. General Terms 2
2. Safety Instructions 2
3. Mode of Operation 3
4. Auxiliary Equipment 4 - 5
5. Cleaning 5
6. Installation 5
6.1 Welding Instructions 6
7. Materials 6
8. Dimensions / Weights 7
9. Technical Data 8
10. Maintenance 8
11. Service Instructions 9 - 12
12. Detection of Seal Damage 13
13. Spare Parts Lists
DKRT - DN50, 80, 100 RN - 01.078
Table of Contents : Page :
Double - Seat Ball Valve DELTA DKRT 2
Tank Outlet Valve
Operating Manual : Rev. 4
This operating manual should be read carefully by the competent
operating and maintenance personnel.
We point out that we will not accept any liability for damage or
malfunctions resulting from the non-compliance with this
operating manual.
Descriptions and data given herein are subject to technical changes.
2. Safety Instructions
Danger!
- The line and cleaning system must be depressurized before any
maintenance of the valve.
- Electric and pneumatic connections must be separated.
-Do not reach into the open valve ball!
Risk of injury by sudden valve operation!
- Observe service instructions to ensure a safe maintenance of
the valve.
- Dismantle the actuator before the exchange of seals.
- During valve operation, operating leakages spirt out the drain
pipe to the bottom.
- If the cleaning connection is not used, it must be sealed by a
plug or operating leakages must be discharged.
1. General Terms
2
UK
Double - Seat Ball Valve DELTA DKRT 2
Tank Outlet Valve
Operating Manual : Rev. 4
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
4
4. Auxiliary Equipment
UK
Valve position indication
- Switches to signal the limit position of the valve ball can be
installed in the yoke if requested.
We recommend our APV standard proximity switches.
Type: three-wire proximity switch
(ref.-No. 08-60-011/93)
Operating distance: 4 mm / diameter : 11 mm / length: 30 mm
Feedback complete with support and proximity switch
(ref.-No. 15-33-023/93) for a limit position.
If the user decides to apply valve position indicators other than
APV type, we cannot take over the liability for any malfunctions
resulting therefrom.
- Control Unit
Units with feedback switches and solenoid valves to be assembled
on the actuator, for the pneumatic control of the valve are also
available in fieldbus technology.
The Control Unit CU3 can be installed on the turning actuator.
Different types are available:
- For the installation of a control unit on the DKR2 valve a special
turning actuator and an adapter are required.
The standard actuator must be replaced.
designation : ref.-No.:
CU 31 Direct Connect 322 000 804 629
CU 21 Profibus 322 000 804 437
CU 31 Device Net 322 000 804 611
CU 31 AS - Interface 322 000 804 701
turning actuators and corresponding adapters
for control units
ref.-No.:
turning actuator K 080 000 - 15 - 37 - 070/17
DN 50
adapter
CU 2 adapter SV1 / SVS1F / DKR2 322 000 801 194
turning actuator K 125 000 - 15 - 37 - 106/17
DN 80 - 100
adapter
CU 2 adapter SV1 / SVS1F / DKR2 322 000 801 195
turning actuator for
Control - Unit
control unit
with adapter
Double - Seat Ball Valve DELTA DKRT 2
Tank Outlet Valve
Operating Manual : Rev. 4
5
4. Auxiliary Equipment
UK
The tank bottom welding flange for the DKRT2 valve
does not form part of the scope of supply.
Order reference numbers for the tank bottom welding flange:
5. Cleaning
Cleaning recommendation for the DKR valve
in the beverage industry
- The flushing times refer to a cleaning pressure of p = 3 - 5 bar.
- The flushing times indicated for the individual cleaning steps are
standard values. In specific applications these times must be
adjusted depending on the product, the pressure ratio and the
degree of soiling.
- The flushing quantity per CIP spraying cycle amounts to
about 1 litre at a cleaning pressure of 3 - 5 bar.
6. Installation
- The valve must be installed in horizontal position at the tank bottom.
Fluids and operating leakages are, therefore, freely drainable to the
bottom and the leakage chamber drains off.
- With several valves being parallely connected with one pipeline,
a passage of the operating leakage to the cleaning connection of
adjacent valves must be avoided.
Installation of a shut-off device or a check valve in front of the
cleaning connection is required.
- Cleaning connection with hose 8 x 1.
-Attention: Observe welding instructions.
cleaning step CIP - spraying
pre - flushing 2 x 10 sec.
caustic flushing 80° C 3 x 10 sec.
intermediate flushing 2 x 10 sec.
acid flushing 3 x 10 sec.
subsequent flushing 2 x 10 sec.
tank bottom welding flange
C
M10
DN ref.-No.:
50 31B 31 - 08 - 030/47
80 31B 31 - 08 - 032/47
100 31B 31 - 08 - 034/47
Double - Seat Ball Valve DELTA DKRT 2
Tank Outlet Valve
Operating Manual : Rev. 4
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