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ALFA LAVAL UNIQUE MIXPROOF TANK OUTLET VALVE INSTRUCTION MANUAL—REV 8/21
3 Installation
Study the instructions carefully and pay special attention to the warnings!
The valve has ends for welding as standard.
W
Weelldd ccaarreeffuullllyy//aaiim
m aatt ssttrreesssslleessss w
weellddiinngg ttoo aavvooiidd ddeeffoorrm
maattiioonn oonn sseeaalliinngg aarreeaass..
C
Chheecckk tthhee vvaallvvee ffoorr ssm
mooootthh ooppeerraattiioonn aafftteerr w
weellddiinngg..
S
Stteepp 33
Bottom of tank
Bottom of tank
Tank flange (standard)
Stub flange (option)
A
1
TD 449-253_1
1
1
TD 449-252_1
1 = Caution
1 = Caution
B
Beeffoorree w
weellddiinngg tthhee ffllaannggee iinnttoo tthhee ttaannkk pplleeaassee nnoottee::
1. Maintain the minimum clearances "A" so that the actuator with
the internal valve parts can be removed - please see later this
section!
If there is a risk of foot damage, Alfa Laval recommends to leave
a distance of 120 mm (4.7”) below the valve (look at the specific
built-in conditions).
M
Miinn.. ddiim
meennssiioonn U
Unniiqquuee TTO
O (all measures in mm) (1mm = 0.0394”)
LLoonnggssttrrookkee
D
DN
N//O
OD
D
D
DN
N//O
OD
D
22””
22½
½””
33””
44””
D
DN
N
22½
½””
33””
D
DN
N
S
Siizzee
5511
6633..55 7766..11 110011..66
5500
6655
8800
110000 112255 115500 6633..55 7766..11
6633
8800
with tank flange (A
1
)
579
646
659
753
577
652
667
755
805 890 700
713
706 721
with external cleaning and tank flange (A
1
)
616
686
699
813
614
692
707
815
865 N/A 740
753
746 761
with stub flange (A)
588
655
668
762
586
661
676
764
814 899 709
722
715 730
with external cleaning and stub flange (A)
625
695
708
822
623
701
716
824
874 N/A 749
762
755 770
If ThinkTop is mounted, add 180 mm (7.1”) to dimension
N/A = Not available
2. A
Allw
waayyss use welding jig (can be ordered separately at Alfa
Laval) to ensure precision of flange after welding.
O
Onnllyy use pulsed arc welding and remember no gap
between flange and tank plate.
Tack weld aallw
waayyss on the opposite side (8 segments with
filler metal).
Weld root if possible without filler metal. Welding of the
final run must be done in 8 segments to avoid crack.
Remember N
NO
OTT to dismount welding jig before flange is
cold.
Welding jig
TD 449-244_1
4
8
5
1
2
6
7
3
IItteem
m nnoo..
S
Siizzee
W
Weellddiinngg ttooooll ffoorr ttaannkk ffllaannggee
2”
9613099901
51 mm
DN50
2½” - 3 “
9613099902
63.5 - 76.1 mm
DN65 - DN80
4”
9613099903
101.6 mm
DN100 - DN150
12
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