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CENTER DISK BUTTERFLY
VALVE
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| 1
|
Shaft
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Provides dependadility
and Positive disc positioning standardized
positive attachment for handles or actuators.
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| 2 |
Top Plate |
| |
With single piece
of body for Accommodates all types of
handle, Gear operators, Pneumatic actuators
and Electric actuators as per ISO 5211.
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| 3
|
Bush
|
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Furnishes shaft
support for positive shaft alignment
and actuators absorbs side thrust load.
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| 4 |
‘O'ring |
| |
Secondory shaft
seal is self adjusting |
| 5 |
Pin |
| |
Special tapper
pins with seals and retainer nuts for
easy and quick disassembly. |
| 6 |
Disc
|
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Concentric seating
for low torque and long seat life provides
bubble tight shut-off, easily field
replaceable. |
| 7
|
Body |
| |
Universal design
allows all valve to be suitable for
installation with slip-on weld neck
flanges. |
| 8 |
Seat Ring |
| |
RESILIENT SEAT,
Replacable seat Isolates the shaft and
body part from stream. Molded '0' ring
provides positive seal against any flange,
eliminating all requirement for gasket. |
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Dimension |
Valve
size |
VALVE DIMENSION |
TOP PLATE
DRILLING
|
WEIGHT |
| |
A |
B |
C |
D |
F |
G |
H |
KEY WAY |
Q |
PCD |
N |
M |
Kg. |
| 40mm |
40 |
77 |
5 |
34 |
31. |
12. |
2 |
- |
22 |
70 |
4 |
9 |
2.7 |
| 65 |
65 |
117 |
115 |
46 |
31.7 |
14.2 |
9.5 |
- |
47 |
70 |
4 |
9 |
4.1 |
| 80 |
75 |
126 |
125 |
46 |
31.7 |
14.2 |
9.5 |
- |
60 |
70 |
4 |
9 |
4.7 |
| 100 |
100 |
160 |
150 |
53 |
31.7 |
15.9 |
11 |
- |
85 |
70 |
4 |
9 |
5.9 |
| 125 |
125 |
182 |
155 |
56 |
31.7 |
15.9 |
11 |
- |
113 |
70 |
4 |
9 |
7.8 |
| 150 |
152 |
210 |
170 |
56 |
31.7 |
19 |
12.7 |
- |
144 |
102 |
4 |
11 |
13 |
| 200 |
203 |
265 |
205 |
61 |
31.7 |
22.2 |
18.5 |
- |
195 |
102 |
4 |
11 |
18 |
| 250 |
252 |
325 |
255 |
69 |
50 |
28.6 |
- |
6.3*6.3 |
245 |
125 |
4 |
11 |
23.4 |
| 300 |
300 |
366 |
275 |
78 |
50 |
28.6 |
- |
6.3*6.3 |
313 |
125 |
4 |
11 |
40 |
| 350 |
337 |
438 |
305 |
78 |
65 |
35 |
- |
7.9*7.9 |
330 |
140 |
4 |
18 |
57 |
| 400 |
387 |
490 |
335 |
102 |
65 |
41.2 |
- |
9.5*9.5 |
376 |
140 |
4 |
18 |
78 |
| 450 |
438 |
539 |
368 |
114 |
65 |
47.6 |
- |
12.7*9.5 |
140 |
4 |
18 |
101 |
101 |
| 500 |
489 |
595 |
400 |
127 |
65 |
47.6 |
- |
12.7*9.5 |
475 |
140 |
4 |
18 |
134 |
| 600 |
587 |
696 |
495 |
154 |
75 |
47.6 |
- |
127*9.5 |
570 |
165 |
4 |
18 |
225 |
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All sizes designed to fit between 125 or 150
class. ANSI flanges.
‘Q' is the
minimum allowable pipe or flange inside diameter.
All dimension are in mm.
Hand lever can be supplied up to size 8”
& gear operated from size 2” &
above.
Approximate Weight.
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MATERIAL
OF CONSTRUCTION |
| |
BILL
OF MATERIALS 1
½ “ - 24” |
| ITEM |
PARTS |
MATERIALS |
| 1 |
Body |
Cast Iron/ASTM
A216 Gr. WCB/ ASTM A 351 Gr. CF 8/CF
8M |
| 2 |
Disc |
Cast Iron/SG
Iron/ WCB/ASTM A351 Gr. CF 8/ CF 8M |
| 3 |
Seat |
Nitrile
/Buna – N /EPDM/PTFE |
| 4 |
Shaft |
ASTM A 276
Gr. 410 / S.S.304/ S.S.316 |
| 5 |
Taper-pin |
S.S.316 |
| 6 |
O-Ring |
VITON |
| 7 |
Bushing |
PTFE |
| 8 |
Plug |
M.S/S.S. |
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| |
| SEAT
TEMPERATURE RATING |
| Material |
Nitrile |
EPDM |
Neoprene |
Viton |
PTFE |
BUNA-N |
| Temp.Ratings of |
-30to200 F |
-30 TO 275 F |
+20 TO 200 F |
+10 TO 400F |
+40 YO 180F |
0 TO 212F |
|
|
| Cv
VALUES VALUE SIZING COEFFICIENTS (US-GMP@1
p) |
| SIZE |
10 |
20 |
30 |
40 |
5 |
60 |
70 |
80 |
90 |
| 2" |
0.08 |
4 |
10 |
20 |
30 |
45 |
80 |
110 |
128 |
| 21/2" |
0.1 |
8 |
15 |
28 |
50 |
80 |
125 |
200 |
300 |
| 3" |
0.22 |
10 |
20 |
40 |
77 |
125 |
200 |
300 |
390 |
| 4" |
0.4 |
20 |
34 |
80 |
149 |
250 |
400 |
646 |
650 |
| 5" |
0.8 |
30 |
55 |
135 |
280 |
400 |
1000 |
1030 |
1122 |
| 6" |
2 |
48 |
80 |
210 |
366 |
700 |
2050 |
1580 |
1680 |
| 8" |
4 |
90 |
150 |
420 |
750 |
1300 |
3240 |
3954 |
4336 |
| 10" |
8 |
150 |
250 |
700 |
1270 |
2247 |
5105 |
5880 |
6840 |
| 12" |
11 |
230 |
350 |
1100 |
2000 |
3260 |
7800 |
9608 |
11990 |
| 14" |
14 |
350 |
700 |
1600 |
2800 |
4580 |
10100 |
12844 |
15400 |
| 16" |
22 |
480 |
990 |
2200 |
3890 |
6382 |
14168 |
18200 |
21400 |
| 18" |
34 |
650 |
1350 |
2950 |
5028 |
8520 |
16200 |
19752 |
25000 |
| 20" |
45 |
800 |
1600 |
3828 |
7000 |
10700 |
20000 |
25400 |
33900 |
| 24" |
58 |
1200 |
2590 |
5676 |
9990 |
17000 |
27005 |
40000 |
42200 |
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YOUR
ADVANTAGES WITH OUR VALVES |
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Totally
Compact |
| Weight,
space and cost Approximately 1/5 to 1/10th
weight of equivalent to Gate, globe, ball
& plug valves and 1/6th space Too. And
also cost wise it is 40% to 60% lower than
Equivalent the same Gate. Globe, Ball &
Plug valves. |
|
Performance |
| Valworth
Industries valves being resilient seated ensure
100% bubble tight shut-off. |
|
Instolation |
| Light
weight construction and compact design permit
easy installation between two flanges in line. |
|
Bi-Direction |
| Butterfly
valves can be install in bi-directional |
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Easy
Operation |
| Butterfly
valves are 90 open to close or throttling
control with locking arrangement. |
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Protection |
| Rugged
construction means trouble free service, Body
& shaft are completely protected from
fluid Stream by the seat. |
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Maintenance |
| Maintenance-free
service life no normal routine maintenance
required. |
|
Gasket |
| The
replaceable liner has built in fianges face
gasket therefore no ADDITIONAL gasket required
Between valve and flange. |
|
Versality |
| Butterfly
valves are used for on-off or throttling controls.
Wide choice of manual, gear operation, Any
kind of pneumatically actuator and electrically
actuator with necessary accessories to fill
every requirement. |
|
Assurance |
| Each
and every Flow Chem Industries Butterfly Valves
are 100% tested for shell and seal before
packing and Shipping. |
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Pressure
Drope |
| Butterfly
valves have flow characteristics approximately
75% of equivalent gate valves and at Least
3 times better than globe valves. |
| |
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APPLICABLE
STANDARDS |
| |
Walworth
Industries butterfly valves design to conform
to the following standard where applicable. |
|
API609 |
Butterfly
valve |
|
BS5155 |
Butterfly valve |
|
MSS SP-67 |
Butterfly valve |
|
BS EN 593 |
Industrial valve,
metallic butterfly valve. |
|
AWWAC504 |
American Water Works
Association |
|
ANSI B 16.5 |
Steel pipe flange
& flange fittings. |
|
ANSI B 16.34: |
Steel valve |
|
API 598 |
Valve Inspection
& testing. |
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| VALVE DIMENSION |
| VALVE SIZE |
A |
B |
C |
D |
| 50 |
44 |
56 |
108 |
101 |
| 65 |
48 |
72 |
118 |
109 |
| 80 |
48 |
85 |
120 |
127 |
| 100 |
54 |
110 |
140 |
161 |
| 125 |
57 |
135 |
160 |
192 |
| 150 |
57 |
152 |
165 |
192 |
| 200 |
64 |
200 |
200 |
270 |
| 250 |
72 |
250 |
225 |
322 |
| 300 |
81 |
304 |
285 |
381 |
| 350 |
92 |
357 |
315 |
413 |
| 400 |
102 |
415 |
345 |
470 |
| 450 |
114 |
455 |
380 |
533 |
| 500 |
127 |
515 |
415 |
584 |
| 600 |
154 |
615 |
475 |
692 |
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