QVE1901U
Technical Instructions
Document No. 155-711
September 20, 2012
Flow Switch
Siemens Industry, Inc.
Description
Flow switch for liquids in piping 3/4-inch to 8-inch (20 mm to 200 mm) diameter
Features
•
Contact load/switching capacity:
Maximum 24 Vac, 1 A, 26 VA
Maximum 24 Vdc, 1 A, 20 W
•
Nominal pressure maximum 365 psi
•
Manual setting of contact type (NO/NC)
•
Housing IP 65 (excluding conduit adapter)
•
Maintenance-free
Application
The QVE1901U Flow Switch is used in HVAC installations to monitor the flow of fluids
in hydraulic systems, especially in refrigeration, heat pump and heating installations (for
example: for use with condensers, boilers, heat exchangers, and so on).
Product Number
QVE1901U
Warning/Caution Notations
WARNING:
Personal injury/loss of life may occur if you do not perform a
procedure as specified.
CAUTION:
Equipment damage may occur if you do not perform a
procedure as specified.
