Zone Valve

TMO 2

Motorised 2 ways zone ball valves

MAIN CHARACTERISTICS

The TMO 2 motorized 2 ways valves are used in households and small systems for controlling the flow of hot and cold water. They can be connected as zone valves in central heating or cooling systems. The valves are used to automatically shut-off the flow of carrier fluid distributed to a system by way of a ball shut-off. The valve head can be removed without influencing the hydraulic system, guaranteeing great flexibility and speed when carrying out valve maintenance. An auxiliary micro switch can be fitted if requested, and it can be actuated during valve commutation.

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 hot cold
 2 ways
 interceptor
 motorized
 hot cold
 2 ways
 interceptor
 motorized
product details

When it is powered, the motor head transmits movement to a shaft that is integral with the ball; the ball, in turn, can allow the fluid flow passage or interrupt it. The perfect ways’ sealing is guaranteed by technopolymer rings, combined with O-rings, fitted in perfect contact to the valve body

  • Valve body: Brass
  • Control shaf: Brass
  • Ball: Chrome plated brass
  • Sealing rings: Teflon
  • Sealing O-Rings: EPDM
  • Motor cover: PA (Nylon)

Type of action

SPDT, SPST, 3 points according to the model


Max. differential pressure

250 kPa, a tenuta A (EN 12266-1)


Nominal pressure

PN10


Fluid temperature limits

5 ÷ 90 °C


Max. ambient temperature

60 °C


Capacity coefficient Kvs

10 m³/h (m³/h - ΔP =1 bar)


Nominal power supply voltage

230 V ~, 24 V ~ 50/60 Hz according to the model


Absorbed power

7 W(max)


Auxiliary contact capacity

3 (1) A, 250 V ~


Way switching commutation time

15s (90 °), 20s (90 °) according to the model


Way switching commutation time

15s (90 °), 20s (90 °) according to the model


Electrical connector type

Molex Mini-Fit JR 6-way or compatible


Appliance insulation class

II Ref. European Directive EN 60730


Protection rating

IP 40 Ref. European Directive IEC EN60529


DIMENSIONI DI INGOMBRO Iso 228 e Dimensioni (mm) 
FIG. MOD. DN A B C D E F G H I
1 TMO 15-2MF 15 111 107 43,5 86,5 G ½ (UNI ISO 228/1) G ½ (UNI ISO 228/1) 67 100 54
2 TMO 15-2MM 15 111 107 43,5 86,5 G ½ (UNI ISO 228/1) - 67 134 54
1 TMO 20-2MF 20 111 107 43,5 86,5 G ¾ (UNI ISO 228/1) G ¾ (UNI ISO 228/1) 67 100 54
2 TMO 20-2MM 20 111 107 43,5 86,5 G ¾ (UNI ISO 228/1) - 67 134 54
1 TMO 25-2MF 25 111 107 43,5 86,5 G 1 (UNI ISO 228/1) G 1 (UNI ISO 228/1) 78 114,5 54
2 TMO 25-2MM 25 111 107 43,5 86,5 G 1 (UNI ISO 228/1) - 78 156 54
3 TMO 25-2E 25 111 103 43,5 86,5 G 1 (UNI ISO 228/1) - 31 62 54

To create the identifi cation of the complete valve or just the actuator, only use the characters given in bold in the table. *Only for version control 3P (3 points).
EXAMPLE 1. TMO 15-2MF SPST 230V 90/15: TMO two-way valve with female thread G 1/2” and male connection G 1/2” SPST control without micro auxiliary, 230 V ac, operation angle 90 ° and 15 seconds of switching time.

EXAMPLE 2. ATM-2 3P M1S 24V 90/20: ATM actuator for two-way valve, 3-point control type, with auxiliary switch, 24 V ac, operation angle 90 ° and 20 seconds of switching time.

EXAMPLE 3: VTM 15-2MF: VTM two-ways valve without actuator, with female thread G1/2” and male connector G1/2

Head losses substantially do not vary as the fluid course varies, and not even as the fluid course direction varies.

Head loss diagram tmo2

The TMO valve must be connected electrically to an external control (thermostat,etc..) using a three- or six-pole cable (if with micro switch), with a Molex Mini-Fit JR 6-way connector, respecting the phases from neutral according to the indications given on the label (fig. 4).As shown in fi g. 3, there are three types of electric control according to the external control:

SPST three-wire twin polar type external control

  • by powering contacts 2 (neutral) and 3 (phase), the valve shut-off.
  • by powering contacts 2 (neutral) and 6 (phase), the valve opens allowing fluid flow

SPDT two-wire single pole type external control:

  • by powering contacts 2 (neutral) and 3 (phase), the valve shut-off
  • alimentando i contatti 2 (neutral) e 6 (phase), si apre la valvola consentendo il passaggio del fluido.

3 POINT control:

  • by powering contacts 2 (neutral) and 3 (phase), the valve shut-off
  • by powering contacts 2 (neutral) and 6 (phase), the valve opens allowing fluid flow
  • by disconnecting the power from contacts 2 and 3 or 2 and 6, the motor head stops and maintains the position reached at that moment. Connecting the power, the motor moves in the direction required by the connection to obtain 3 point modulation

NB: for all types of control, an interruption in the power supply leaves the valve in the position it was in when the supply was interrupted.


AUXILIARY SWITCH
All versions are available with a double pole auxiliary micro switch (M1S version). The micro switch contacts are independent from the valve electric circuit. The micro switch cannot be fitted on versions that do not have it fitted originally.
Micro signal output (fig.4):

contact 1 : C (common)

contact 4 : NO (normally open)

contact 5 : NC (normally closed).

fig. 4 connections valve tmo2
Application Diagrams valve tmo2

TMO 2
MUT series TMO 2 motorised two-ways ball zone valve for applications in households and small-medium systems for controlling the fl ow of hot and cold water. Connections available: G 1/2”, G 3/4”, G 1” (ISO 228-1). Brass body. Brass ball, chrome plated. PTFE ball hydraulic seal with EPDM O-Ring. Sealing O-Rings: EPDM. Motor Cover in PA (Nylon). Medium water and glycol solutions; maximum percentage of glycol 50%. Nominal pressure 10 bar. Working temperature range : 5 ÷ 90 °C. Maximum differential pressure 250 kPa. Type of control drive: SPDT, SPST, 3 points according to the model; electric supply 230 V (or 24 V); power consumption 7 W; Auxiliary microswitch contact rating 3 (1) A, 250 V. Protection class IP 40. Appliance insulation class: II - Ref. European Norm EN 60730. Operating time (open/shut-off ): 15 s (90°) – (20 s (90°) for 3 points control) according to the model; ambient temperature range 0 – 60 °C.

specification summaries
TMO2 DataSheet 2014-04-28 it, en pdf go
  • TMO

  • VMR 2-WAY

  • VMR 3-way

  • SF-2

  • SF

  • SF 415

  • SF BASE

  • SFC

  • VS

  • SFCF