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Butterfly
Valve |
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FLOVELL Make Cast Iron Butterfly Valves
Cast Iron Butterfly valves are available
in a variety of materials suitable for
various applications in the marine,
water and process industries. The range
includes resilient seated and high performance
valves for chemical and corrosive areas.
We offer a range of lined valves with
special hygienic valves specifically
designed for the pharmaceutical, food
and beverage, and fine chemical industries.
Wafer type, double flanged bodies with
Replaceable seat is also available.
Butterfly valves are quick opening valves
that consist of a metal circular disc
or vane with its pivot axes at right
angles to the direction of flow in the
pipe, which when rotated on a shaft,
seals against seats in the valve body.
These valves are normally used as throttling
valves to control flow. Unlike ball
valves, butterfly valves do not have
any pockets in which fluids may become
trapped when the valve is closed properly.
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Butterfly
Valves - Hand Level Operator
(Technical Data)
| SIZE |
A |
B |
C |
D |
E |
F |
H |
| DN-25 |
65 |
29 |
48 |
26 |
77 |
144 |
60 |
| DN-32 |
70 |
32 |
52 |
34 |
83 |
154 |
60 |
| DN-40 |
83 |
32 |
57 |
45 |
95 |
172 |
60 |
| DN-50 |
95 |
41 |
64.5 |
52.5 |
105 |
190 |
95 |
| DN-65 |
107 |
45 |
70.5 |
65 |
116 |
207 |
95 |
| DN-80 |
127 |
45 |
81 |
77.5 |
137 |
239 |
95 |
| DN-100 |
162 |
50 |
101 |
104 |
150 |
272 |
95 |
| DN-125 |
190 |
54 |
118 |
128 |
164 |
304 |
95 |
| DN-150 |
216 |
54 |
129 |
145 |
179 |
329 |
95 |
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Butterfly Valves
Gear Operator
(Technical Data)
| SIZE |
A |
B |
C |
D |
E |
F |
H |
| DN-200 |
267 |
58 |
155 |
197 |
215 |
392 |
140 |
| DN-250 |
323 |
66 |
192 |
248 |
247 |
462 |
140 |
| DN-300 |
373 |
77 |
215 |
298 |
277 |
515 |
140 |
| DN-350 |
437 |
81 |
255 |
340 |
305 |
650 |
150 |
| DN-400 |
488 |
104 |
285 |
389 |
330 |
707 |
150 |
| DN-450 |
538 |
113 |
315 |
438 |
370 |
792 |
170 |
| DN-500 |
593 |
126 |
352 |
489 |
403 |
860 |
170 |
| DN-600 |
694 |
152 |
419 |
585 |
485 |
1022 |
270 |
| DN-700 |
806 |
167 |
470 |
688 |
560 |
1148 |
300 |
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TOP |
Double Flanged Butterfly
Valves Gear Operator
(Technical data)
| SIZE |
A |
B |
C |
D |
E |
F |
H |
| DN-250 |
165 |
243 |
216 |
252 |
543 |
140 |
406 |
| DN-300 |
178 |
293 |
248 |
284 |
607 |
140 |
457 |
| DN-350 |
190 |
338 |
284 |
315 |
689 |
150 |
527 |
| DN-400 |
216 |
387 |
311 |
333 |
734 |
150 |
578 |
| DN-450 |
222 |
432 |
38 |
378 |
824 |
170 |
641 |
| DN-500 |
229 |
478 |
360 |
396 |
860 |
170 |
705 |
| DN-600 |
267 |
581 |
432 |
468 |
1017 |
270 |
825 |
| DN-700 |
292 |
675 |
491 |
527 |
1125 |
270 |
940 |
| DN-800 |
318 |
774 |
545 |
585 |
1247 |
270 |
940 |
| DN-900 |
330 |
873 |
612 |
702 |
1512 |
300 |
1283 |
| DN-1000 |
410 |
977 |
671 |
702 |
1512 |
300 |
1175 |
| DN-1100 |
440 |
1076 |
725 |
756 |
1643 |
320 |
1389 |
| DN-1200 |
470 |
1175 |
783 |
819 |
1782 |
320 |
1492 |
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Typical
Fields Of Applications:
- Water treatment & effluent treatment
plants.
- Refrigeration & Air-Conditioning
plants.
- Sugar factories / Breweries
- Food Processing Industries
- Chemical / Petrchemical industries
- Seawater & Brine Pumping.
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Technical
Advantages of the Butterfly Valves
- Excellent control characteristics.
- Tight shut - off even after
innumerable operations.
- 90 movement for full oprn /
close positon . Provision for
intermediatory locking after every
10 for regulation / controlling
purpose.
- Installation cost considerably
reduced because of very low weight
and component wear.
- No routine maintenance required.
- Longer life and reliable service
with minimum component wear.
- Renewable seats.No supplementary
gaslket required with the
adjucent pipework.
- Body & Steam totally protected
from service fluid.
- Centrally mounted disc, shafts
and bearings, therefore these
valves give higher CV values.
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TOP |
Wafer Type Check
Valves
(Technical data)
| DN |
Dia 'A' BS - 10D |
Dia 'B' |
'C' thick |
| 25 |
68 |
14 |
15 |
| 32 |
72 |
17.5 |
15 |
| 40 |
81 |
22 |
16 |
| 50 |
95 |
28 |
16 |
| 65 |
108 |
41 |
17 |
| 80 |
128 |
52 |
17 |
| 100 |
158 |
76 |
20 |
| 125 |
190 |
100 |
21 |
| 150 |
216 |
122 |
22 |
| 200 |
272 |
158 |
27 |
| 250 |
333 |
203 |
32 |
| 300 |
383 |
248 |
36 |
| 350 |
442 |
266 |
40 |
| 400 |
492 |
305 |
50 |
| 450 |
555 |
360 |
50 |
| 500 |
613 |
402 |
63 |
| 600 |
724 |
486 |
68 |
| 700 |
837 |
590 |
72 |
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Wafer
Type Check Valves
Salient Features
- Simple but robust construction
with reliability.
- Pressure rating - PN - 10, PN
- 16.
- Range - DN - 25 to DN - 700.
- 100% tight shut-off.
- Short overall length - very
short space received.
- Suitable for flange standards
-BS,ANSI,IS,API etc.
- Material - C.I. / M.S. / CS
/ S.S.CF8 / CF-8 M.
- 'O' Rings - Nitrile / EPDM /
Vitron / Silicon / PTFE.
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TOP |
Material Of Construction:
| Component |
Maerial Specification |
Optional Material |
| Body |
C.I. IS. -210 FG - 200 |
WCB - ASTM - A - 216,
CF8 - ASTM - A - 352,
CF8M - ASTM - A - 351, |
| Disc |
C.I. IS. - 210 FG - 200 |
WCB - ASTM - A - 216,
CF8 - ASTM - A - 352,
CF8M - ASTM - A - 351, |
| Shaft |
IS - 1570 Grade 40C - 8 |
AISI - 410, 304, 316 |
| Seat |
Nitrile / EPDM |
Neoprene / Silicon / Vitron. |
| Bush Bearing |
Self Lubricating Sintered
Bronze |
G.M. / PTFE. |
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Technical Data:
| Manufactured: |
As per IS
- 13095 / BS - 5155 / AWWA -
C - 504 |
| Pressure
Rating: |
Pn - 10, PN
- 16 |
| Class |
125 / 150 |
| Temperature
Range: |
-20°
to +180° C |
| Face To
Face Dimensions: |
ISO - 5757
/ BS 5155 Wafer short / API
- 609 |
| Actuation
By : |
Hand leaver
- DN - 25 to DN - 150
GEar Operated DN - 200 to DN
- 1200 |
| End Connections: |
Wafer-Flangeless
Double Flanged |
| Suitable
for mounting flanges to : |
IS / ANSI
/ BS / DIN Standards |
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