Unlike the drop-through valve, the blow-through valve has a sealed bottom. It does not contain an exit flange like that of the flow through valve, instead it has a trough where the pneumatic conveying line connects. The feed is supplied to the valve via the inlet port, then the rotor turns and drops the feed into the trough where it is blown out into the conveying line. It is suitable for more cohesive materials like flour, milk powder, custard etc.

Blow through rotary valve

Specifications

Housing:

Cast (GG25, SS304, SS316)
Weld (St37, St52, Hardox, SS304, SS316)

Rotor:

Cast (GG25, SS304 or SS316)
Weld (St37, St52, Hardox, SS304, SS316)

End plates:

Cast (GG25, SS304, SS316)
Weld (St37, St52, Hardox, SS304, SS316)

Seals: Lip seal, Gland packing.

Blow Through Capacity Table

Series

Motor power(kw)

Volumetric Capacity

(liters/rev)

Throughput (m3/hr.)

10rpm

20rpm

30rpm

40rpm

50rpm

60rpm

BT100 model

0.11 – 0.25

0.4

0.24

0.48

0.72

0.96

1.2

1.44

BT125 model

0.25 – 0.37

0.9

0.54

1.08

1.62

2.16

2.7

3.24

BT150 model

0.25 – 0.55

1.8

1.08

2.16

3.24

4.32

5.4

6.48

BT200 model

0.37 – 0.75

4.5

2.7

5.4

8.1

10.8

13.5

16.2

BT220 model

0.37 – 0.75

5.7

3.42

6.84

10.26

13.68

17.1

20.52

BT250 model

0.55 – 1.1

9.8

5.88

11.76

17.64

23.52

29.4

35.28

BT300 model

0.75 – 1.5

17.3

10.38

20.76

31.14

41.52

51.9

62.28

BT350 model

1.1 – 2.2

28.1

16.86

33.72

50.58

67.44

84.3

101.16

BT400 model

1.5 – 3

42

25.2

50.4

75.6

100.8

126

151.2

BT450 model

2.2 – 4

63

37.8

75.6

113.4

151.2

189

226.8

BT500 model

3 – 5.5

86

51.6

103.2

154.8

206.4

258

309.6

BT600 model

4 – 7.5

153

91.8

183.6

275.4

367.2

459

550.8

BT700 model

5.5 – 11

222

133.2

266.4

399.6

532.8

666

799.2

BT800 model

5.5 – 15

330

198

396

594

792

990

1188

BT900 model

7.5 – 17.5

530

318

636

954

1272

1590

1908

BT1000 model

7.5 – 22

663

397.8

795.6

1193.4

1519.2

1989

2386.8