HVAC Automatic Controller Components

 
  • Use in fan coil or heating equipment control of central air-conditoning or heating system
  • Three types: internal thread 1/2", 3/4", 1"
  • On/off type, 2-way normal-closed and 3-way diverting
  • Use fully-enclosed one-way hysteresis synchronous motor, with spring return and water-proof function
  • With auxiliary micro-switch available
  • Fluid medium temperature: 94centigrade degree
  • Body rating: 20bar
  • Can produce according to customer's requriement.
Model
Dimension
Type
KV factor
Mpa
Electrical rating
SR012W1220
1/2"
 2-way 
2.0
0.20
220V AC
(+_10%)
(50-60Hz) 
SR012W1232
1/2"
 2-way
3.2
0.15
SR013W1243
1/2"
 3-way
4.3
0.15
SR012W3420
3/4"
 2-way
2.0
0.20
SR012W3432
3/4"
 2-way
3.2
0.15
SR013W3446
3/4"
 3-way
4.6
0.15
SR012W1168
1"
 2-way
6.8
0.10
SR013W1157
1"
 3-way
5.7
0.10
SR012W1220KA
1/2"
 2-way
2.0
0.20
220V AC(+_10%)
(50-60Hz)
with 3A 250V micro-switch
SR012W1232KA
1/2"
 2-way
3.2
0.15
SR013W1243KA
1/2"
 3-way
4.3
0.15
SR012W3420KA
3/4"
 2-way
2.0
0.20
SR012W3432KA
3/4"
 2-way
3.2
0.15
SR013W3446KA
3/4"
 3-way
4.6
0.15
SR012W1168KA
1"
 2-way
6.8
0.10
SR013W1157KA
1"
 3-way
5.7
0.10

 
SRT Radiator Thermal Control Valves
left:SRT051A   right:SRT0501B
SRT Radiator Thermal Control Valves
left:SRV051A-15  right:SRV051A-20

SRT Radiator Thermal Control Valves include the thermal control sensors and thermal control valves for all fields and central heating. It does not demand any extra energy. Just install it on the radiator piping for the self-regulation of room temperature to create a comfortable condition without overheat but with lower heating cost. 

 

 


 
  • Use in temperature control of fan coil or heat pump of central air-conditioning or heating System
  • LCD temperature indicator(some types)
  • Working range:5-30centigrade degree
  • Temperature sensitive element precise:mechanical bellows
  • Micro-switch control precison:0.5-0.8centigrade degree
  • Electrical rating:thermostat 1A,250V AC, 3-speed switch 6(2)A,250V AC
  • Using life:thermostat contact at 220V,full load,over 200,000 times,manual switch over 10,000 times.
Model
Type
Description
SRT022A
Cooling/heating change-over type 
 With HEAT-OFF-COOL and HIGH-MED-LOW switch
SRT022B
Cooling type
 With ON-OFF and HIGH-MED-LOW switch
SRT022YJA
Cooling/heating change-over type
 With HEAT-OFF-COOL and HIGH-MED-LOW switch,LCD temperature indicator
SRT022YJB
Cooling type
 With ON-OFF and HIGH-MED-LOW switch,LCD temperature indicator 
SRT023A
Cooling/heating change-over type
 With HEAT-OFF-COOL and HIGH-MED-LOW switch
SRT023B
Cooling type
 With ON-OFF and HIGH-MED-LOW switch
SRT024A
Cooling/heating change-over type
 With HEAT-OFF-COOL and HIGH-MED-LOW switch
SRT024B
Cooling type
 With ON-OFF and HIGH-MED-LOW switch
SRT025A
Cooling/heating change-over type
 With HEAT-OFF-COOL and HIGH-MED-LOW switch
SRT025B
Cooling type
 With ON-OFF and HIGH-MED-LOW switch


 
  • Normal torsion: 1000N
  • Fit to 17mm,19mm,22mm,25mm stroke.
  • Motor power stage: 24V AC 50/60Hz 5.5VA
  • Normal-closed valve must add enclosure CB
Model
Time(s)
Power supply
Operation/Control
Electric circuit
50Hz
60Hz
VA-3100
80
66
24
Reversible,increasing control
-------------
VA-3101
80
66
24
Reversible,increasing control,stroke feedback signal
 Power: 15V DC
Output signal:0~10V DC
VA-3102
80
66
24
Proportional control,direct or athwart rotate
 Power: 24V AC Error: -10%~+15%
Input range:0~10V
Input resistance:100Kohm

 
  • Use in hot water, cold water, low pressure and vapor, medium temperature range:                                          -10~+180centigrade degree
  • Leakage: Kvs=0.2 or 0.4,leaking account is Kv's 0.1%, Kvs is other number, leaking account is Kv's 0.05%;
  • Pressure rating: 16bar
  • Dimension from 15mm to 65mm, KV factor from 10 to 63
  • Connection Type: BSPT internal thread type(BS21)
Model of valve body
Dimension(mm)
Type
Max pressure difference(bar)
KV factor
Valve stem stroke
VB-3200-25
25
2-way
10
10
17
VB-3200-32
32
2-way
7.5
16
19
VB-3200-40
40
2-way
5.0
25
19
VB-3200-50
50
2-way
3.0
40
22
VB-3200-65
65
2-way
2.5
63
25
VB-3300-25
25
3-way
10
10
17
VB-3300-32
32
3-way
7.5
16
19
VB-3300-40
40
3-way
5.0
25
19
VB-3300-50
50
3-way
3.0
40
22
VB-3300-65
65
3-way
2.5
63
25


 
  • Normal torsion: 2500N
  • Fit to 45mm stroke.
  • Motor power stage: 24V AC 50/60Hz 5.5VA
  • Normal-closed valve must add enclosure CB
Model
Time(s)
Power supply(V)
Operation/controls
Electric circuit
50Hz
60Hz
VA-7100
198
163
24
Reversible,increasing control
---------------
VA-7101
198
163
24
Reversible,increasing control
stroke feedback signal
 Power: 15V DC
Output signal: 0~10V DC
VA-7102
198
163
24
Proportional control,direct or athwart rotate
 Power: 24V AC Error: -10%~+15% Input Range: 0~10V DC Input Resistance: 100Kohm
 

 
  • Use in hot water and cold water, medium temperature range: -10~+180centigrade degree
  • Leakage account is Kv's 0.03%
  • Pressure rating: 16bar
  • Dimension from 80mm to 150mm, KV factor from 100 to 360
  • Connection Type:NP16 flanged

 
Model of valve body
Dimension(mm)
Type
Max pressure difference(bar)
KV factor
Valve stem stroke
VB-7200-80
80
2-way
5.5
100
45
VB-7200-100
100
2-way
3.7
160
45
VB-7200-125
125
2-way
2.8
250
45
VB-7200-150
150
2-way
2.5
360
45
VB-7300-80
80
3-way
5.5
100
45
VB-7300-100
100
3-way
3.7
160
45
VB-7300-125
125
3-way
2.8
250
45
VB-7300-150
150
3-way
2.5
360
45

Attention: When valve is fully closed, data in the form are max water pressure difference of VA-7000 series actuators.