Valve, B211B+TFRB24-SR-NC/FC #413905
Characterized Control Valve with Proportional Actuator Water Control Valve for hydronic heating and cooling systems1/2" or 3/4" Female NPT ConnectionsMedia Temperature from 0°F to 250°F [-18°C to 120°C] Maximum Glycol concentration 60%Differential Pressure up to 50psi [345kPa]Manufactured in brass with EPDM O-rings B2 series is variety of 2-way, equal percentage flow characteristics, control valves.B211B, 1/2" Female NPT, Cv=1.9B212B, 1/2" Female NPT, Cv=3B218B, 3/4" Female NPT, Cv=7.4 The Valves are intended to be used with the TFRB24 Spring Return Proportional Actuator, 24V AC supply voltage and 2 to 10V DC control voltage. Normally Closed (NC) with the option of Fail Close (FC) or Fail Open (FO).
24V 50/60Hz | |||
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Nominal data | |||
Voltage (nominal) | 24 | V | |
Frequency | 50; 60 | Hz | |
Input power | 2 | W | |
Controller and Sensors | |||
Permitted humidity, non-condensing | 0 to 85 | %RH | |
Ambient and duct temperature | |||
Permitted ambient temperature | -22 to 122 | °F | |
Dimensions and weights | |||
Type of pipe connection | NPT Female | ||
Weight | 0.4 | lb | |
Others | |||
Full stroke time | 95 | s | |
Media temperature | 0 to 248 | °F | |
Flow characteristics | Equal percentage | ||
Max. Leakage | 0 | % | |
Material body | Brass | ||
Stem | Brass | ||
Packing box | EPDM |