Product Handbook 2026 - Volume 2

Humidification products Steam injection humidifiers

11

System sizing (continued)

Lance model 1

1.5 to 12

Kv 7 Kv 1 Kv 2 Kv 3 Kv 4 Kv 5 Kv 6

Type 20 system with multiple lances

Supply pressure

0.25 bar g 0.5 bar g 1.0 bar g 1.5 bar g 2.0 * bar g

0 0 0 0

6

12

18

24 40 60 80

30

36 60 90

42

10

20 30 40

30 45 60

50

70

Steam load kg/h

15

75

105 140

20

100

120

0

22

44

66

88

110

132

154

Lance model 1

2

3

3 to 12

Kv 25

Kv 20

Type 40 system with multiple lances

Kv 15

Kv 10

Kv 5

8.1.7

Supply pressure 0.25 bar g

0 0 0 0

35 55 80

70

105 165 240 300

140

175

0.5 bar g 1.0 bar g 1.5 bar g 2.0 * bar g

110

220

275

Steam load kg/h

160

320

400 500

100

200

400

0

115

230

345

460

575

11.1 10

Note: 2.0 bar g is the maximum recommended inlet steam pressure to the separator for quiet operation of the humidifier. For operating pressures above 2 bar g consult Spirax Sarco.

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TI-P795-02 CTLS Issue 6

Page 4 of 4

Type 20 and Type 40 Sizing Direct Steam Injection Humidifiers

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