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  1. MVQ positioner solution
  2. Setup and support

MVQ valve positioner: Installation guidelines

The following information will help you quickly install the MVQ smart valve sensor. For more details, please refer to the operating instructions with the product datasheet.

Illustrated schematic of the assembled system

MVQ on top of an actuator, connected electrically to a solenoid valve, and mechanically connected to a throttle plate and solenoid valve.

MVQ installation instructions

Figure overview: 

  1. Hexagon socket screw 4 x M5 x 16
  2. Sensor and control unit MVQ301
  3. Hexagon socket screw 1 x M6 x 12
  4. Puck
  5. Throttle plate
  6. Solenoid valve
  7. Cylinder screw 2 x M5 x 45

Installation steps:

  1. Use the notch located at the bottom of the puck as a mounting aid for a precise positioning on the shaft. Align the puck and fasten the puck to the valve shaft using the screw supplied [3], tightening torque 1.2 Nm.
  2. Put the device [2] over the puck [4] and fix the sensor to the actuator housing using the supplied screws [1]. Use an optional mounting plate, depending on the mechanical interface.
  3. Install the throttle plate [5] and the solenoid control valve [6]  with the screws supplied [7], connect the airline to the solenoid valve [6].
  4. When the system is complete, turn the power and compressed air on, and the positioner is ready to be configured.

Caution: Before dismantling the throttle plate or solenoid valve, ensure that no pressure is applied to all chambers of the actuator. Alternatively: Unscrew the throttle plate or solenoid valve very slowly and allow the trapped compressed air to escape.

Pneumatic switching symbols

Below are the pneumatic switching symbols of the solenoid valves that ifm supplies. 

ZZ0687 - 3/3-way solenoid valve*

Pneumatic switching symbol for a 5/3-way solenoid valve.

ZZ0686 - 5/3-way solenoid valve

Pneumatic switching symbol for a 5/3-way solenoid valve with a defined home position.

ZZ0688 - 5/3-way solenoid valve with defined home position

*Confirm the location of the spring chamber. Connect Port 3 on the solenoid and throttle plate to the spring chamber. If the valve fails to move during the automatic teaching process, loosen the air ports on the throttle plate to allow air to flow into the actuator. For optimal performance, set the cycle time (from closed to open) to 3 seconds.

How to videos:
Mounting the MVQ positioner to an actuator

Mounting to a double acting actuator using the ZZ0688 positioner kit

Mounting to a spring return actuator using the ZZ0687 positioner kit

Mounting accessories

The intelligent valve positioners from ifm are designed according to NAMUR standard. Mounting interface between sensor and actuator shaft is regulated by VDI/VDE 3845 standard. Mounting accessories for different actuators are available. Refer to the actuator dimensions to determine any required mounting accessories.

Actuator shaft: A = shaft diameter, B = base diameter, X and Y = hole spacing, z = shaft height

A = Shaft diameter; B = Base diameter; x, y = Hole spacing; z = Shaft height

Accessories
  Part no. X (mm) Y (mm) Z (mm) A (mm) B (mm)
MVQ 80 30 20 <35 <35
MVQ + E12674 80 / 130 30 20 / 30 / 40 >38 na.
MVQ + E12628 80 / 130 30 30 / 40 / 50 >38 na.
MVQ + E12569 80 30 30 <35 <38
MVQ + E12573 130 30 30 <35 <38