Top 10 Butterfly Valve Suppliers in the USA (2026 Guide)
In the industrial landscape of 2026, the demand for precision flow control ...
V1FS/V2FS Fit-Frame Butterfly Valves can be fitted beneath hoppers, bins, silos, screw or other type conveyors, or to intercept pneumatic conveying ducts. Due to their special design, material residue between valve and downstream feeding device is drasticallyreduced. This valve range is compliant with Regulation (EC) No.1935/2004 on materials and articles intendedto come into contact with food.
V1FS/V2FS Fit-Frame Butterfly Valves can be fitted beneath hoppers, bins, silos, screw or other type conveyors, or to intercept pneumatic conveying ducts. Due to their special design, material residue between valve and downstream feeding device is drasticallyreduced. This valve range is compliant with Regulation (EC) No.1935/2004 on materials and articles intendedto come into contact with food.

| Type |
∅A
|
∅B
|
∅C
|
∅D
|
E
|
F | G |
∅ H
DIN5482
|
N Drilling
|
P External grooves
|
∅R
|
α
|
S | T | U | V | Z | Kr |
|
V1FS 100.
|
95 | 180 | 220 | 105 | 250 | 115 | 35 |
22×19
|
4×∅ 14
|
4×∅ 20
|
220
|
22°30′
|
40
|
80 |
M12
|
50 |
M10
|
4 |
|
V1FS 150.
|
150 | 200 | 228 |
163
|
290 | 115 | 35 |
22×19
|
4×∅ 14
|
4×∅ 20 | 228 |
22°30′
|
40 | 80 |
M12
|
50 | M10 | 5 |
|
V1FS 200.
|
200 |
250
|
278 | 213 | 340 | 115 | 35 |
22×19
|
4×∅ 14
|
4×∅ 20 | 278 |
22°30
|
40
|
80 |
M12
|
50 | M10 | 6.5 |
|
V1FS 250
|
250 | 300 | 328 | 263 | 390 | 115 | 35 |
22×19
|
8×∅ 14
|
8×∅ 20
|
325 |
11°15′
|
40
|
80 |
M12
|
50 | M10 | 7.5 |
|
V1FS 300.
|
300 | 350 | 378 | 313 | 440 | 115 | 35 |
22×19
|
8×∅ 14
|
16×∅ 20
|
375 |
5°41′
|
40
|
80 |
M12
|
50 | M10 | 9 |
|
V1FS 350.
|
350 | 400 | 440 | 363 | 530 | 123 | 50 |
28×25
|
8×∅ 14
|
8×∅ 20
|
440 |
10°
|
40
|
80 |
M12
|
- | - | 16 |
|
V1FS 400.
|
400 | 470 | 530 | 413 | 580 | 123 | 50 |
28×25
|
8×∅ 14
|
16×∅ 20
|
530 |
4°30
|
40
|
80 |
M12
|
- | - | 20.5 |
| Type |
∅A
|
∅B
|
∅C
|
E
|
F | G |
∅ H
DIN5482
|
N Drilling
|
P External grooves
|
∅R
|
α
|
T | U | V | Z | Kr |
|
V1FS 100.
|
95 | 180 | 220 | 250 | 77 | 35 |
22×19
|
4×∅ 14
|
4×∅ 20
|
220
|
22°30′
|
80 |
M12
|
50 |
M10
|
4 |
|
V1FS 150.
|
150 | 200 | 228 | 290 | 77 | 35 |
22×19
|
4×∅ 14
|
4×∅ 20 | 228 |
22°30′
|
80 |
M12
|
50 | M10 | 5 |
|
V1FS 200.
|
200 |
250
|
278 | 340 | 77 | 35 |
22×19
|
4×∅ 14
|
4×∅ 20 | 278 |
22°30
|
80 |
M12
|
50 | M10 | 6.5 |
|
V1FS 250
|
250 | 300 | 328 | 390 | 77 | 35 |
22×19
|
8×∅ 14
|
8×∅ 20
|
325 |
11°15′
|
80 |
M12
|
50 | M10 | 7.5 |
|
V1FS 300.
|
300 | 350 | 378 | 440 | 77 | 35 |
22×19
|
8×∅ 14
|
16×∅ 20
|
375 |
5°41′
|
80 |
M12
|
50 | M10 | 9 |
|
V1FS 350.
|
350 | 400 | 440 | 530 | 85 | 50 |
28×25
|
8×∅ 14
|
8×∅ 20
|
440 |
10°
|
80 |
M12
|
- | - | 16 |
|
V1FS 400.
|
400 | 470 | 530 | 580 | 85 | 50 |
28×25
|
8×∅ 14
|
16×∅ 20
|
530 |
4°30
|
80 |
M12
|
- | - | 20.5 |




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