Humidification products Steam injection humidifiers
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Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2025
TI-P795-03 CMGT Issue 10
Type 20 and Type 40 Direct Steam Injection (SI) Humidifiers
Description Spirax Sarco direct steam injection (SI) humidifiers are designed to inject dry steam into a ducted air system in such a manner as to ensure efficient mixing of the steam and air, and to raise the moisture content of the air stream with no condensate carryover. Available types The SI systems are available in two versions - Type 20 and Type 40 . For each version there are a range of 13 standard length lances to cover duct widths from 280 mm to 3 950 mm. The selection is dependent upon the steam humidification load. Control valves and actuators Standard options for Spirax Sarco valves and electric actuators are given in the selection table (see page 2). The unit may be supplied without a valve and/or actuator. Spirax Sarco offer a wide range of other makes that are available to order. Standard control options - Pneumatic 0.2 - 1.0 bar - Electric Valve motor drive 230 V, 100/110 V or 24 V - Electronic 0 -10 V dc or 4-20 mA
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TI-P795-03 CMGT Issue 10
Page 1 of 5
Type 20 and Type 40 Direct Steam Injection (SI) Humidifiers
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