TR 7221 RTK
Self-acting temperature controller

production of discontinued

TR 7221 RTK Self-acting temperature controller
calculation and selection
93 % - model rating
Drawing TR 7221 RTK Self-acting temperature controller Design TR 7221 RTK Self-acting temperature controller
Техническое описание
Model
TR 7221
Manufacturer
RTK
Country
Germany
Allowable working fluids
Water | Steam | Compressed air
Function
maintains the set temperature
Action
opens when the temperature increases
Working position
-
PN
40 / 25 / 16
Tmax (for water)
175 °C
Tmin (for water)
0 °C
Connection type
flanged
Body material
cast iron / steel
Tmax for temperature sensor
t +50 °C

Length of impulse tube
2 | 4 | 6 | 8 m
Kvs m³/h
dP= 0.0 kPa

technical
specifications
price

DN
mm 		Kvs
m³/h 		dPmax
bar 		L
mm 		Xp
°C 		Tc
seс 		dT
°C 		price
15 0.50
2.3
5.2
 25 130 - - 0 - 70
30 - 100
50 - 120
80 - 150
100 - 170
130 - 200
 production of discontinued
20 5.5
 15 150 - - 0 - 70
30 - 100
50 - 120
80 - 150
100 - 170
130 - 200
 production of discontinued
25 11
 8 160 - - 0 - 70
30 - 100
50 - 120
80 - 150
100 - 170
130 - 200
 production of discontinued
32 11
 4.3 180 - - 0 - 70
30 - 100
50 - 120
80 - 150
100 - 170
130 - 200
 production of discontinued

DN - nominal diameter, mm.

Тс - time constant, sec.

L - length along the pipeline axis, mm.

dT - range of temperatures maintained by the controller, °C.

dPmax - maximum pressure drop across the controller, bar.

Xp - proportional band corresponds to the temperature deviation in °C from the setpoint at which the valve of the controller will go to the extreme position.

Kvs - flow coefficient, corresponds to the water flow rate in m³/h at which the pressure drop across the controller will be 1 bar.

question : comment : feedback

where to notify about the reply. not published anywhere
Kvs
Flow coefficient
m³/h
Temperature set
°C
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