3
40
1.5
80
4.5
23
50
2
95
5.0
31
65
2.5
120
11.5
52
80
3
132
18.5
69
100
4
153
26.0
90
125
5
183
35.5
114
150
6
209
48.5
143
200
8
259
72.5
196
250
10
309
92.5
244
300
12
364
112.5
293
350
14
412
126.0
321
400
16
475
149.0
387
450
18
525
162.0
423
500
20
578
186.0
484
600
24
680
218.0
570
700
28
780
272.0
686
750
30
728
280.0
728
800
32
887
305.0
783
900
36
1000
349.0
879
NEOTECHA
NEOSEAL BUTTERFLY VALVE
INSTALLATION AND MAINTENANCE INSTRUCTIONS
4 IDENTIFICATION
Additional identification on the valve in
accordance with DIN 19, such as: DN, PN,
manufacturer’s logos of the Neotecha
AG company and . The valve
body material is cast onto the valve.
Manufacturer
Country of
manufacture
Manufacturer’s
code
Customer request
Year of manufacture
CE-mark with
4-digit number of
notified body
Serial number
Valve type
5 DIMENSIONS AND WEIGHTS
Refer to the product documentation
for dimensions and weights.
6 INSTALLATION
6.1 Preparation for installation
The dimensions of the NeoSeal valve have been
chosen so that, in the case of a wafer body,
it can be clamped between all current DIN,
ANSI and JIS flanges of the appropriate size.
Principal dimensions of the valves: refer to
the catalog page for data.
The flanges must meet the following
requirements (see table below).
FLANGES REQUIREMENTS
DN
øR
X
øY
mm
inches
mm
mm
mm
• Cleaned and undamaged mating surface.
• The internal diameter of the mating flange
must have the following dimensions:
Minimum: Y-dimension of the valve plus
sufficient clearance for the valve disc.
Maximum: if the flanges have a raised face,
the outside diameter of the raised face
must not be less than dimension ‘R’ of the
butterfly valve.
• The appropriate flange bolt hole
arrangements in the various flange standards
and diameters allow the valve to be centered
by passing the flange bolts through the
holes in the mounting plate of the valve.
• The flange bolts must be centrally aligned
in the holes in the valve mounting plate.