SPX FLOW APV DELTA SD4 Series User Manual

8
APV_SD4_ATEX_UK-0_122018.indd
UK
Double seal valve
DELTA SD4-ATEX
Instruction Manual: UK - rev. 0
APV
6. Cleaning
For the cleaning of SD4 valves, distinction is made between two
areas.
6.1. Theflowchambers
The passages of the valve are cleaned by the cleaning liquid during
cleaning of the connected pipelines.
6.2. Theleakagechamber(fig.6.2.)
Cleaning of the leakage chamber is undertaken via the leakage
valves. The cleaning liquid is supplied via one leakage valve and
discharged to the atmohsphere in a closed process via the second
leakage valve.
The restraint passage of the cleaning liquid provides for a perfect
cleaning of the whole leakage chamber.
- Flushing quantity per CIP cycle: about 1.2 tr / 10 s
- Cleaning pressure at CIP cleaning connection: min. 2 bar
max. 5 bar
Under standard operating conditions, 15 valves DN 25/1” - 100/4”
can be cleaned via one spray distribution line DN 25.
6.3. Cleaning(leakagechamber)
Recommendation of cleaning cycles with standard operating
conditions and CIP liquids.
Cleaning steps CIP-spraying
Pre-flushing 3 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.
fig.6.2.
CIPIN
CIPOUT
G ⅛

SPX FLOW APV DELTA SD4 Series Specifications

General

Brand	SPX FLOW
Model	APV DELTA SD4 Series
Category	Control Unit
Language	English