Valves and actuators
Pump groups for boilers and heating systems
|
Regulus CS Pump Groups make a boiler installation easier because they contain all the important components necessary for boiler protection and proper operation of space heating and DHW heating. They are designed to be mounted directly on the boiler outlet pipe or on a wall.
List of pump groups:
-
CS TSV VDM Group
-
CS VMX Group
-
CS TSV Group
CS TSV VDM Group
|
CS TSV VDM Group is intended for solid-fuel boilers with an accumulation tank, DHW heating enabled
CS TSV VDM contains:
-
circulation pump
-
boiler pump
-
TSV2 thermostatic mixing valve
-
2 ball valves for connection to a heating system
-
3-way mixing valve for a heating system
-
mixing valve actuator (the version with an actuator only, code 8118)
CS TSV maintains the return temperature at 65°C, preventing condensation and clogging the boiler by tar. Water for a heating system (i.e. its heating output) is mixed by a 3-way mixing valve, controlled either manually or by an electronic controller. The heat surplus is stored in an accumulation tank and then supplied automatically when the boiler goes off.
|
Type |
Code |
|
CS TSV VDM Group, no el. actuator for a mixing valve |
7700 |
|
CS TSV VDM Group, with a 3-way valve electric actuator |
8118 |
|
 |
CS VMX Group
|
CS VMX Group is intended for all kinds of boilers. Both heating water and boiler water get mixed without throttling
CS VMX contains:
-
circulation pump
-
2 ball valves with thermometers for connection to a heating system
-
4-way mixing valve for both a heating system and a boiler
-
mixing valve actuator (the version with an actuator only, code 8118)
-
automatic heating system bypass
CS VMX makes it possible to control both the return temperature of a solid-fuel boiler and the output of a heating system using one 4-way valve. Thanks to throttle-free regulation it can be used also for boilers with an integrated pump (usually gas-fired ones). Noise of closing thermostatic valves can be also eliminated using a bypass with an adjustable pressure difference.
|
Type |
Code |
|
CS VMX Group, no el. actuator for a mixing valve |
8117 |
|
CS VMX Group, with a 3-way valve electric actuator |
7849 |
|
 |
CS TSV Group
|
CS TSV Group is intended for solid-fuel boilers, no accumulation tank, DHW heating enabled
CS TSV contains:
-
circulation pump
-
boiler pump
-
TSV2 thermostatic mixing valve
-
2 ball valves for connection
CS TSV maintains the return temperature at 65°C, preventing condensation and clogging the boiler by tar. Heating water is mixed automatically to a temperature corresponding to the boiler output. It can work at a low boiler output e.g. with a boiler temperature of 75/65°C and a heating system temperature of 50/40°C. The heating output is controlled directly on the boiler - e.g. by an RT2 thermostatic regulator or by a room controller.
|
Type |
Code |
|
CS TSV Group, automatic mixing |
7699 |
|
 |
|
Boiler drain valves and air vents
|
REGULUS Boiler Drain Valves |
 |
|
A boiler drain valve is intended for emptying and filling heating systems. It is supplied in a 1/2“ size. Its max. working temperature is 110°C and pressure 16 bar. The valve body is made of nickel-plated brass, with a stainless-steel ball mechanism in a Teflon socket. The control lever is made of plastic.
|
Boiler drain valve 1/2", PN 16 |
4229 |
|
|
|
REGULUS Air Vent Valve |
 |
|
Regulus automatic air vents in brass are designed to vent air from heating systems. Each is supplied with a check valve, 1/2“ for OV1 and 3/8“ for OV2. Their max. working temperature is 110°C and pressure 10 bar.
|
OV1 - 1/2" air vent valve, complete with a check valve - upper |
5373 |
|
OV2 - 3/8", air vent valve, complete with a check valve - upper |
5601 |
|
Brass thermostatic mixing valves for heating systems
|
In the process of burning, among others also water releases from burning fuels in the form of steam. When the flue gas temperature is high enough, the steam comes out through a chimney together with flue gas. However, if the flue gas cools down at a certain spot, condensation occurs. Condensate is formed, containing further combustion products that can be very aggressive, esp. when burning wood or solid fuels, and can cause corrosion very quickly as well as clog heat transfer surfaces.
Corrosion will not occur if the heat transfer surfaces are warm enough because condensation will not occur above certain temperatures. The heat transfer surfaces will be warmer and their service life longer. TSV1 and TSV2 thermostatic mixing valves mix cold return water with hot water from the boiler outlet. Thus the whole heat exchanger (heat transfer surfaces) is kept warmer, at temperatures that will not allow condensation to occur and so clogging and corrosion will be prevented
without mixing valve
|
with mixing valve TSV
|
Thermostatic mixing valve TSV1
DN 32 with 5/4“ male thread, for easy mounting supplied with a screw joint of 1/2“, 3/4“ and 1“ female thread or with a screw joint for soldering
on Cu DN 28. Recommended for boilers of max. 25 kW output.
|
TSV1 1/2 - thermostatic valve incl. screw joints 1/2" |
6543 |
|
TSV1 3/4 - thermostatic valve incl. screw joints 3/4" |
6559 |
|
TSV1 1 - thermostatic valve incl. screw joints 1" |
6561 |
|
TSV1 28 - thermostatic valve incl. screw joints for copper soldering, DN 28 |
7012 |
|
 |
Thermostatic mixing valve TSV2
DN 50 with 2“ male thread, for easy mounting supplied with a screw joint of 5/4“, 6/4“ and 2“ female thread. Recommended for boilers of 26-100 kW output.
|
TSV2 5/4 - thermostatic valve incl. screw joints 5/4" |
6544 |
|
TSV2 6/4 - thermostatic valve incl. screw joints 6/4" |
6563 |
|
TSV2 2 - thermostatic valve incl. screw joints 2" |
6564 |
|
 |
|
MUT MIXING VALVES AND ACTUATORS
 3-way butterfly valves |
4-way butterfly valves |
|
3-way mixing valves with a circular segment |
Actuators for mixing valves |
|
|
3-way butterfly valves |
|
|
VM3 - 1000 |
Details |
 |
DN |
20 |
25 |
32 |
40 |
50 |
65 |
 |
|
a (mm) |
130 |
130 |
140 |
156 |
150 |
200 |
|
b (mm) |
65 |
65 |
70 |
78 |
75 |
100 |
|
VF3 - 1000 |
Details |
|
|
DN |
32 |
50 |
65 |
80 |
100 |
125 |
 |
|
a (mm) |
170 |
180 |
200 |
230 |
260 |
290 |
|
b (mm) |
85 |
90 |
100 |
115 |
130 |
145 |
|
VM3 - 2000 |
Details |
|
|
DN |
20 |
25 |
32 |
40 |
 |
|
a (mm) |
100 |
100 |
110 |
120 |
|
b (mm) |
50 |
50 |
55 |
60 |
|
|
|
3-way mixing valves with a circular segment |
|
|
VDM3 - 1000 |
Details |
 |
DN |
20 |
25 |
32 |
40 |
50 |
65 |
|
|
a (mm) |
130 |
130 |
140 |
156 |
150 |
200 |
|
b (mm) |
65 |
65 |
70 |
78 |
75 |
100 |
|
VDF3 - 1000 |
Details |
|
|
DN |
32 |
50 |
65 |
80 |
100 |
125 |
|
|
a (mm) |
170 |
180 |
200 |
230 |
260 |
290 |
|
b (mm) |
85 |
90 |
100 |
115 |
130 |
145 |
|
VDM3 - 2000 |
Details |
|
|
DN |
20 |
25 |
32 |
40 |
|
|
a (mm) |
100 |
100 |
110 |
120 |
|
b (mm) |
50 |
50 |
55 |
60 |
|
VDM3 - 3000 |
Details |
|
|
DN |
20 |
25 |
32 |
 |
|
a (mm) |
88 |
88 |
88 |
|
b (mm) |
44 |
44 |
44 |
|
|
|
VM4 - 1000 |
Details |
 |
DN |
20 |
25 |
32 |
40 |
50 |
65 |
 |
|
a (mm) |
130 |
130 |
140 |
156 |
150 |
200 |
|
b (mm) |
65 |
65 |
70 |
78 |
75 |
100 |
|
VF4 - 1000 |
Details |
|
|
DN |
32 |
50 |
65 |
80 |
100 |
125 |
 |
|
a (mm) |
170 |
180 |
200 |
230 |
260 |
290 |
|
b (mm) |
85 |
90 |
100 |
115 |
130 |
145 |
|
VM4 - 2000 |
Details |
|
|
DN |
20 |
25 |
32 |
40 |
 |
|
a (mm) |
100 |
100 |
110 |
120 |
|
b (mm) |
50 |
50 |
55 |
60 |
|
VM4 - 3000 |
Details |
|
|
DN |
20 |
25 |
32 |
 |
|
a (mm) |
88 |
88 |
88 |
|
b (mm) |
44 |
44 |
44 |
|
|
|
Actuators for mixing valves |
|
|
Actuator type |
V70 |
V200 |
M1000 |
|
Regulation type |
OO |
MO |
OO |
MO |
OO |
MO |
|
Working angle j (°) |
90 |
90 |
90 |
90 |
90 |
90 |
|
Running time (s) |
240,480 |
60,90,120 |
120,240,480 |
60,90,120 |
120,240,480 |
60,90,120 |
|
Max. torque (Nm) |
7 |
7 |
18 |
18 |
20 |
20 |
|
Supply voltage (V) |
230;24 |
24 |
230;24 |
24 |
230;24 |
24 |
|
Supply frequency (Hz) |
50/60 |
50/60 |
50/60 |
|
Power input (VA) |
1,5 |
2 |
3,86 |
|
El. protection |
IP40 |
IP40 |
IP40 |
|
Max. ambient temperature(°C) |
50 |
50 |
50 |
|
Auxiliary contacts (number) |
1 |
1 |
1 |
|
Max. current through contacts at 250 V (A) |
3 |
3 |
3 |
|
Dimensions (mm) |
90 x 100 x 90 |
110 x 110 x 90 |
150 x 150 x 100 |
|
Weight (kg) |
0,5 |
1,1 |
1,2 |
|
Usage for mixing valves |
series 2000,3000 |
series 2000, series 1000 up to DN50 |
series 1000 from DN65 |
|
ACTUATOR CODE DESCRIPTION: |
V70 |
/ |
24 |
/ |
24 |
/ |
MO |
/ |
B |
/ |
010 |
|
V70 |
24 |
24 |
MO |
B |
010 |
|
series |
code |
running time |
code |
tension |
code |
version |
code |
code end-switch closing |
code |
control signal |
M1000
V200
V70 |
6
9
12
24
48 |
60s
90s
120s
240s
480s |
24
- |
24V
230V |
OO
MO |
ON-OFF
modulating |
A
B |
position A
position B |
005
105
010
210
020
420 |
0-5V
1-5V
0-10V
2-10V
0-20mA
4-20mA |
|
OO (On-Off) - 3-wire control, motor moves with supply voltage on |
|
End-switch closing: |
|
- in A position the end switch is closed at the finish side, counter-clockwise |
|
- in B position the end switch is closed at the finish side, clockwise |
|
ZONE VALVES, THREADED, SPRING - RETURN WITH ELECTRIC MOTOR
TYPE: SF |
Materials:
|
Valve body, cover, ball-bearing pin : |
brass |
|
Shut-off ball : |
EPDM |
|
Return springs : |
stainless steel |
|
Motor cover : |
UL 94 NO self-extinguishing ABS |
|
Static O-ring seal : |
EPDM |
|
Dynamic O-rings seal : |
VITON |
|
 |
Type of the valve/Nominal diameter DN
identification number
|
Max. diff. pressure
DPmax
|
Kvsm3/h
|
SF 15-2
7.001.01574.0
|
SF 15-2E
7.001.01724.0
|
SF 15-2M1
7.001.01586.0
|
90 kPa
|
6
|
SF 15-2-EB
7.001.01693.0
|
SF 16-2.EB
7.001.01682.0
|
|
SF 20-2
7.001.01603.0
|
SF 20-2E
7.001.02066.0
|
|
90 kPa
|
7
|
SF 20-2EB
7.001.01704.0
|
SF 20-2M1
7.001.01618.0
|
|
SF 25-2
7.001.01639.0
|
SF 25-2E
7.001.02283.0
|
|
90 kPa
|
9
|
SF 25-2M1
7.001.01654.0
|
SF 25-2-B
7.001.02064.0
|
|
|
|
Rated pressure |
PN
|
10
|
|
Max. working temperature |
t max
|
110°C
|
|
Max. room temperature |
t pro
|
60°C
|
|
Voltage |
U
|
24V, 230V
|
|
Absorbed power |
P
|
5-6W
|
|
Degree of protection |
IP
|
20
|
|
Aux. contact capacity |
|
3A
|
|
Opening time |
s
|
10
|
|
Closing time |
s
|
6
|
|
Cable length |
mm
|
550
|
|
Main characteristics :
These valves are powered by an electric motor and can assume two operating positions depending on whether or not the motor is activated. One or two auxiliary switches can be installed on request and be actuated when the valve switches. Valves are equipped with an external lever for manually positioning the shut-off ball in its central position. |
Operation :
When it is without electricity the valve is positioned as in fig.1 : the valve is closed. When the electrical supply is activated the motor overcomes the force of the spring and moves the ball from way A to an intermediate position in about 10 sec. and the shut-off ball remains in this position until the electrical power supply is deactivated( fig.2). When the electrical power supply is deactivated the return spring brings the shut-off ball back to the way A in about 4 sec. |
Without electric power supply
With electric power supply
|
Using the manual lever:
The lever is positioned on the side of the servomotor that permits manual positioning of the shut-off ball in an intermediate position(fig.3). This is useful when filling or emptying the hydraulic system. The lever reset, from manual to automatic, takes place automatically whenever the valve is activated by electricity.
Manual lever engaged |
|
M1 - |
control microswitch |
|
- |
If the identification is without ending, the thread is internal. |
|
E - |
external thread, ball connections for copper tube |
|
EB - |
- external thread for copper, ball connections for copper tube |
|
B - |
internal thread |
|
Auxiliary switches:
A single pole microswitch (M1 version), a two-pole microswitch (M1S version) or two microswitches (M2 or M2S version) can be mounted on all versions. There is a special kit for mounting the auxiliary single-pole microswitch even in version that do not carry it as an original part (M1 kit). M1S kits, M2 or M2S cannot be installed on versions which do not mount them originally. |
|
TYPE
|
DN
|
A
|
B
|
C
|
D
|
E
|
|
 |
|
|
SF 15-2
|
G1/2"
|
92
|
46
|
20
|
85
|
105
|
|
SF 20-2
|
G3/4"
|
92
|
46
|
20
|
85
|
105
|
|
SF 25-2
|
G1"
|
92
|
46
|
20
|
84
|
104
|
|
|
With internal thread
|
|
|
TYPE
|
DN
|
A
|
B
|
C
|
D
|
E
|
|
 |
|
|
SF 15-2E
|
G1/2"
|
92
|
46
|
20
|
84
|
100
|
|
SF 20-2E
|
G3/4"
|
92
|
46
|
46
|
84
|
130
|
|
|
|
|
|
|
|
|
|
|
With external thread
|
|
|
TYPE
|
A
|
|
 |
|
 |
|
|
SF 15-2EB
|
53
|
|
SF 16-2EB
|
53
|
|
SF 20-2EB
|
53
|
|
|
Connections for Cu-tubes - EB
|
|
Connections for Cu-tubes - B
|
|
|
Valve identification
|
Type
|
Nominal dimensions
|
No. of ways
|
Type of fittings
|
Auxiliary microswitches
|
Voltage V
|
|
SF
|
15
|
G1/2" or copper tube diameter 15
|
2
|
- internal thread
E - external thread
EB - compression seal for Cu-tubes
B - compression seal for Cu tubes for DN 25
|
M1
|
1 single-pole
|
V
|
|
24
|
24
|
|
16
|
copper tube diameter 16
|
M1S
|
1 single-pole
|
110
|
110
|
|
20
|
G 3/4" or copper tube diameter 22
|
M2
|
2 single-pole
|
--
|
230
|
|
25
|
G1" or copper tube diameter 28
|
M2S
|
2 two-pole
|
240
|
240
|
Example SF 25-2E M1S 24:: two-way valve, G1" with external thread and 1 auxiliary two-pole auxiliary microswitch, voltage 24V. |
Application example as 2-way zone valve
The fig. illustrates a typical installation layout for 2-way zone valves. It is necessary to use SF valve with a micro-limit switch in order to stop the pump when all the valves are closed. Also other parts available in the market are necessary such as differential by-pass valves to avoid bothersome noise and to ensure a constant pump pressure. |
Application example giving priority to the hot water heater
This system including two-way valves is used when the delivery rate at the system is different from the hot water storage tank requirements. In this case valves with different outlets can be chosen.
|
 |
Legend:
|
Z |
Z zone served by the valve |
|
C |
boiler |
|
P |
circulation pump |
|
SF |
zone valve |
|
I |
heating system |
|
TA |
zone room thermostat |
|
TB |
hot water storage tank thermostat (60°C) |
|
 |
3-WAY ZONE VALVES, THREADED, SPRING - RETURN
TYPE: SF |
Materials:
|
Valve body, cover, ball-bearing pin : |
brass |
|
Shut-off ball : |
EPDM |
|
Return springs : |
stainless steel |
|
Motor cover : |
UL 94 NO self-extinguishing ABS |
|
Static O-ring seal : |
EPDM |
|
Dynamic O-rings seal : |
VITON |
|
|
Type of the valve/Nominal diameter DN
identification number
|
Max. diff. pressure
DPmax
|
Kvsm3/h
|
SF 15
7.001.01739.0
|
SF 15-M1
7.001.01753.0
|
SF 15-E
7.001.02097.0
|
|
154 kPa
|
6,6
|
SF 15-EB
7.001.01876.0
|
SF 16-EB
7.001.011861.0
|
|
|
SF 20
7.001.01770.0
|
SF 20-M1
7.001.01787.0
|
SF 20-E
7.001.01913.0
|
|
154 kPa
|
7,8
|
SF 20-EM1
7.001.01935.0
|
SF 20-EB
7.001.01888.0
|
SF 20-F
7.001.01983.0
|
SF 20-F-M1
7.001.01986.0
|
SF 25
7.001.01808.0
|
SF 25-M1
7.001.01827.0
|
SF 25-E
7.001.01954.0
|
|
62 kPa
|
12,6
|
SF 25-EM1
7.001.01969.0
|
SF 25-B
7.001.01846.0
|
|
|
|
|
Rated pressure |
PN
|
10
|
|
Max. working temperature |
t max
|
110°C
|
|
Max. room temperature |
t pro
|
60°C
|
|
Voltage |
U
|
24V, 230V
|
|
Absorbed power |
P
|
5-6W
|
|
Degree of protection |
IP
|
20
|
|
Aux. contact capacity |
|
3A
|
|
Opening time |
s
|
20
|
|
Closing time |
s
|
6
|
|
Cable length |
mm
|
550
|
|
Main characteristics
These valves are powered by an electric motor and can assume two operating positions depending on whether or not the motor is activated. One or two auxiliary switches can be installed on request and be actuated when the valve switches. Valves are equipped with an external lever for manually positioning the shut-off ball in its central position. |
Operation :
When it is without electricity the valve is positioned as in fig.1 : the valve is closed. When the electrical supply is activated the motor overcomes the force of the spring and moves the ball from way A to an intermediate position in about 10 sec. and the shut-off ball remains in this position until the electrical power supply is deactivated(fig.2). When the electrical power supply is deactivated the return spring brings the shut-off ball back to the way A in about 4 sec.
|
Without electric power supply
With electric power supply
|
Using the manual lever:
A lever is positioned on the side of the servomotor that permits manual positioning of the shut-off ball in an intermediate position(fig.3). This is useful when filling or emptying the hydraulic system. The lever reset, from manual to automatic, takes place automatically whenever the valve is activated by electricity.
Manual lever engaged |
|
M1 - |
control microswitch |
|
- |
If the identification is without ending, the thread is internal. |
|
E - |
external thread, ball connections for copper tube |
|
EB - |
- external thread for copper, ball connections for copper tube |
|
B - |
internal thread |
|
Auxiliary switches:
A single pole microswitch (M1 version), a two-pole microswitch (M1S version) or two microswitches (M2 or M2S version) can be mounted on all versions. There is a special kit for mounting the auxiliary single-pole microswitch even in version that do not carry it as an original part (M1 kit). M1S kits, M2 or M2S cannot be installed on versions which do not mount them originally. |
|
TYPE
|
DN
|
A
|
B
|
C
|
D
|
E
|
|
|
|
|
SF 15
|
G1/2"
|
92
|
46
|
46
|
84
|
130
|
|
SF 20
|
G3/4"
|
92
|
46
|
46
|
84
|
130
|
|
SF 25
|
G1"
|
92
|
46
|
46
|
88
|
134
|
|
|
With internal thread SF 20
|
|
|
TYPE
|
DN
|
A
|
B
|
C
|
D
|
E
|
|
|
|
|
SF 20 E
|
G3/4"
|
92
|
46
|
20
|
84
|
130
|
|
SF 25 E
|
G 1"
|
92
|
46
|
46
|
88
|
134
|
|
|
|
|
|
|
|
|
|
|
With external thread SF 20 E
|
|
|
TYPE
|
A
|
A
|
|
|
|
|
|
|
SF 15 EB
|
53
|
137
|
|
SF 16 EB
|
53
|
137
|
|
SF 20 EB
|
53
|
139
|
|
|
Connections for Cu-tubes - EB
|
|
Connections for Cu-tubes - B
|
|
|
Valve identification :
|
|
Nominal dimensions
|
Type of fittings
|
Auxiliary microswitches
|
|
Voltage
|
SF
3way
|
15
|
G1/2" or copper tube diameter 15
|
- internal thread
E - externalthread
EB - compressionseal
B - compression seal
for ND 25
|
M1
|
1 single-pole
|
24
|
24 V
|
|
16
|
copper tube diameter 16
|
M1S
|
1 two-pole
|
110
|
110 V
|
|
20
|
G 3/4" or copper tube diameter 22
|
M2
|
2 single-pole
|
-
|
230 V
|
|
25
|
G1" or copper tube diameter 28
|
M2S
|
2 two-pole
|
240
|
240 V
|
|
Application example as 3-way zone valve
The zone room thermostat controls opening and closure of the respective SF valves. When there is no demand it shuts off power to the valve which closes the zone and recirculates water back to the boiler return. Installing a meter as shown in the diagram permits efficient subdivision of operating costs. The recirculation pipeline should be balanced to avoid excess flow rate variations in other circuits during valve operation. |
Legend
|
Z |
zone served by the valve |
|
C |
boiler |
|
P |
circulation pump |
|
SF |
zone valve |
|
TA |
zone room thermostat |
|
H |
meter |
|
|
Application example giving priority to the hot water heater
We use this installation system mainly on combined boilers to permit the temperature of domestic hot water to be adjusted at the desired value. The valve is used for priority over the heating system. |
Legend
|
I |
heating system |
|
TA |
room thermostat |
|
TB |
hot water storage tank thermostat (60°C) |
|
SF |
diverter valve |
|
P |
circulation pump |
|
|
2-WAY ZONE VALVES, THREADED, WITH ELECTRIC MOTOR TYPE: VMR
Materials :
|
Valve body : |
bronze |
|
Motor bracket : |
PBT |
|
Cylindrical shut-off: |
POM |
|
Return springs : |
steel |
|
Motor cover : |
UL 94 NO self-extinguishing ABS |
|
Valve stem : |
stainless steel |
|
Seal O-rings : |
EPDM |
|
Cartridge: |
PA |
|
 |
|
Type |
VMR
|
|
Nominal diameter |
DN
|
20
|
|
Nominal flow rate |
Kvsm3/h
|
5,4
|
|
Rated pressure |
PN
|
10
|
|
Max. working temperature |
t max
|
110°C
|
|
Max. diff. pressure |
Dpmax
|
400 kPa
|
|
Voltage |
U
|
230V;24V
|
|
Frequency |
|
50/60 Hz
|
|
Absorbed power |
P
|
4 W
|
|
Degree of protection |
IP
|
40
|
|
Max. room temperature |
tpro
|
60°C
|
|
Aux. contact capacity |
|
3A,250V
|
|
Opening and closing time |
s
|
6
|
|
Cable length |
mm
|
650
|
|
Identification number |
VMR 20-E
|
7.001.00052.0
|
|
Operation :
All moving parts and the seals of the valve are assembled in a cartridge. O-rings on the outer surface of the piston guarantee a hermetic seal of valve paths. When the valve stem is in its low position, and path B is closed, flow takes place in paths A and AB, passing through the holes in the cylindrical shut-off. When the stem is in its high position the flow in path A is blocked and takes place in paths B and AB. Switchover from one path to the other takes about 6 seconds.
Using the manual lever:
A lever is positioned on the side of the servomotor that permits manual positioning of the shut-off ball in an intermediate position. The manual lever can only be manoeuvred when it is in its upper position. The valve can be opened by firmly pressing the manual lever both down and in until it locks in the intermediate position. Paths A and B are open in this position. This is useful when filling or emptying the pipeline system or when there is a power failure.
|
 |
 |
 |
|
Way B closed
|
Way A closed
|
Manual lever engaged
|
|
Main characteristics :
VMR valves are motorised valves used in home applications and small installations to control the flow of hot and cold water. They can be used as shunt or mixing valves in centralised heating or cooling systems. The valve, thanks to its cylindrical shut-off, shunts flow independent from the different pressures between the various paths. This shut-off can have two operating positions depending on how the electric motor that moves is powered. The head of the valve can be removed without opening up the plumbing system: this makes valve maintenance quick and flexible. An auxiliary microswitch can be installed on request and be activated when the valve is switched. Valves have an external lever for manually positioning the shut-off in its central position.
Auxiliary switches
A two-pole microswitch (M1 version) can be mounted on all versions. The microswitch M1S cannot be installed in versions which do not mount them originally.
Electrical connections
There are two types of electrical connections depending on the type of low voltage exetrnal control: |
|
* |
· two-pole SPDT three-wire external control: when there is a request for hot water the control unit (SPDT) closes the NO contact, the valve closes path B and opens path A. When path A is completely open the cam closes travel limit microswitch C1 and opens travel limit microswitch C2. When the demand for water is satisfied the control closes contact NC, powering the valve through C1 and causing closure of path A. When path A is completely closed the cam closes C2 and opens C1. The valve is now ready for the next request for hot water. |
|
* |
· single-pole SPST two-wire external control (2 wires and common): when there is a request for hot water the control unit (SPST) closes contact N, that powers the relay which in turn closes the contact NO (microswitch C3).This causes the closure of path B and opening of path A. When path A is totally open the cam closes travel limit microswitch C1 and opens microswitch C2. When the demand for water is satisfied the control opens contact N and consequently the relay is no longer powered and contact NC (microswitch C3) is closed. This causes the closure of path A and opening of path B. When path A is totally closed the cam closes C2 and opens C1. The valve is now ready for the next request for hot water. |
 |
 |
|
SPDT control
|
SPDT control
|
Cable connector
|
MolexTM quick connector
|
|
Valve identification :
|
|
Nominal dimensions
|
Type of connections
|
External control
|
Electrical connections
|
Auxiliary microswitches
|
Voltage
|
|
DN
|
|
|
|
|
|
|
|
|
počet a typ
|
|
V
|
|
VMR
|
20
|
G3/4
|
E
|
external gas
|
SPDT
|
two-pole
|
CR
|
quick:
MOLEXTM
|
M1
|
1 single-pole
|
--
|
220-
240
|
|
|
|
SPST
|
single-pole
|
C
|
kabel
|
M1S
|
1 two-pole
|
|
|
Example: VMR 20 E SPDT CR M1: : VMR 3-way valve with G 3/4" external thread connections according to UNI ISO 228/1, two-pole external control, MOLEXTM quick connector, single-pole auxiliary microswitch and 220-240 V motor.
|
Overall dimensions:
  |
1) Application example as 3-way zone valve
The zone room thermostat controls opening and closure of the relative VMR valves. When there is no demand it interrupts power to the valve which closes the zone and circulates water back to the boiler return circuit. Installing a meter as illustrated in the diagram permits efficient sharing of operating costs. It is good practice to balance load losses in the recirculation pipeline to avoid excessive flow rate variations in other circuits during valve operation.
LEGEND
|
TA |
zone room thermostat |
|
VMR |
zone valve |
|
P |
circulation pump |
|
B |
burner |
|
H |
meter |
|
TC |
boiler thermostat (60-90°C) |
|
TB |
hot water heater thermostat (60°C) |
|
Z |
zone served by the valve |
|
C |
boiler |
2) Application example giving priority to the hot water heater
We use this installation system mainly on combined boilers to permit the temperature of domestic hot water to be adjusted at the desired value. The valve is used for priority over the heating system. |
 |
 |
3-WAY ZONE VALVES, THREADED, WITH ELECTRIC MOTOR TYPE: VMR
Materials :
|
Valve body : |
bronze |
|
Motor bracket : |
PBT |
|
Cylindrical shut-off: |
POM |
|
Return springs : |
steel |
|
Motor cover : |
UL 94 NO self-extinguishing ABS |
|
Valve stem : |
stainless steel |
|
Seal O-rings : |
EPDM |
|
Cartridge: |
PA |
|
 |
|
Type |
VMR
|
|
Nominal diameter |
DN
|
20
|
|
Nominal flow rate |
Kvsm3/h
|
5,4
|
|
Rated pressure |
PN
|
10
|
|
Max. working temperature |
t max
|
110°C
|
|
Max. diff. pressure |
Dpmax
|
400 kPa
|
|
Voltage |
U
|
230V;24V
|
|
Frequency |
|
50/60 Hz
|
|
Absorbed power |
P
|
4 W
|
|
Degree of protection |
IP
|
40
|
|
Max. room temperature |
tpro
|
60°C
|
|
Aux. contact capacity |
|
3A,250V
|
|
Opening and closing time |
s
|
6
|
|
Cable length |
mm
|
650
|
|
Identification number |
VMR 20-E
|
7.001.00052.0
|
|
Operation :
All moving parts and the seals of the valve are assembled in a cartridge. O-rings on the outer surface of the piston guarantee a hermetic seal of valve paths. When the valve stem is in its low position, and path B is closed, flow takes place in paths A and AB, passing through the holes in the cylindrical shut-off. When the stem is in its high position the flow in path A is blocked and takes place in paths B and AB. Switchover from one path to the other takes about 6 seconds.
Using the manual lever:
A lever is positioned on the side of the servomotor that permits manual positioning of the shut-off ball in an intermediate position. The manual lever can only be manoeuvred when it is in its upper position. The valve can be opened by firmly pressing the manual lever both down and in until it locks in the intermediate position. Paths A and B are open in this position. This is useful when filling or emptying the pipeline system or when there is a power failure.
|
|
|
|
|
Way B closed
|
Way A closed
|
Manual lever engaged
|
|
Main characteristics :
VMR valves are motorised valves used in home applications and small installations to control the flow of hot and cold water. They can be used as shunt or mixing valves in centralised heating or cooling systems. The valve, thanks to its cylindrical shut-off, shunts flow independent from the different pressures between the various paths. This shut-off can have two operating positions depending on how the electric motor that moves is powered. The head of the valve can be removed without opening up the plumbing system: this makes valve maintenance quick and flexible. An auxiliary microswitch can be installed on request and be activated when the valve is switched. Valves have an external lever for manually positioning the shut-off in its central position.
Auxiliary switches
A two-pole microswitch (M1 version) can be mounted on all versions. The microswitch M1S cannot be installed in versions which do not mount them originally.
Electrical connections
There are two types of electrical connections depending on the type of low voltage exetrnal control: |
|
* |
· two-pole SPDT three-wire external control: when there is a request for hot water the control unit (SPDT) closes the NO contact, the valve closes path B and opens path A. When path A is completely open the cam closes travel limit microswitch C1 and opens travel limit microswitch C2. When the demand for water is satisfied the control closes contact NC, powering the valve through C1 and causing closure of path A. When path A is completely closed the cam closes C2 and opens C1. The valve is now ready for the next request for hot water. |
|
* |
· single-pole SPST two-wire external control (2 wires and common): when there is a request for hot water the control unit (SPST) closes contact N, that powers the relay which in turn closes the contact NO (microswitch C3).This causes the closure of path B and opening of path A. When path A is totally open the cam closes travel limit microswitch C1 and opens microswitch C2. When the demand for water is satisfied the control opens contact N and consequently the relay is no longer powered and contact NC (microswitch C3) is closed. This causes the closure of path A and opening of path B. When path A is totally closed the cam closes C2 and opens C1. The valve is now ready for the next request for hot water. |
|
|
|
SPDT control
|
SPDT control
|
Cable connector
|
MolexTM quick connector
|
|
Valve identification :
|
|
Nominal dimensions
|
Type of connections
|
External control
|
Electrical connections
|
Auxiliary microswitches
|
Voltage
|
|
DN
|
|
|
|
|
|
|
|
|
po�et a typ
|
|
V
|
|
VMR
|
20
|
G3/4
|
E
|
external gas
|
SPDT
|
two-pole
|
CR
|
quick:
MOLEXTM
|
M1
|
1 single-pole
|
--
|
220-
240
|
|
|
|
SPST
|
single-pole
|
C
|
kabel
|
M1S
|
1 two-pole
|
|
|
Example: VMR 20 E SPDT CR M1: : VMR 3-way valve with G 3/4" external thread connections according to UNI ISO 228/1, two-pole external control, MOLEXTM quick connector, single-pole auxiliary microswitch and 220-240 V motor.
|
Overall dimensions:
  |
1) Application example as 3-way zone valve
The zone room thermostat controls opening and closure of the relative VMR valves. When there is no demand it interrupts power to the valve which closes the zone and circulates water back to the boiler return circuit. Installing a meter as illustrated in the diagram permits efficient sharing of operating costs. It is good practice to balance load losses in the recirculation pipeline to avoid excessive flow rate variations in other circuits during valve operation.
LEGEND
|
TA |
zone room thermostat |
|
VMR |
zone valve |
|
P |
circulation pump |
|
B |
burner |
|
H |
meter |
|
TC |
boiler thermostat (60-90°C) |
|
TB |
hot water heater thermostat (60°C) |
|
Z |
zone served by the valve |
|
C |
boiler |
2) Application example giving priority to the hot water heater
We use this installation system mainly on combined boilers to permit the temperature of domestic hot water to be adjusted at the desired value. The valve is used for priority over the heating system. |
 |
|
|
Are you interested in this product? Contact us using form below or contact us directly
on e-mail info@mrs.cz or call +420 545 175
844 or +420 602 707 001.
