Stem heater for Forta actuator

Issue

There are a few different stem heaters to choose from.

Product Line

Field Devices

Environment

8800108000

8800109000

8800110000

8800112000

stem heater

Yoke heater

Cause

Depending on application, there are a few different stem (yoke) heaters to choose between for the Forta actuators.

Resolution

When Forta series actuator is used with a Venta valve, stem heater part no 8800108000 should be used when media temp is 0°C to -20°C.

Note: This stem heater is not compatible with the M700 actuator.

 

If used with V321 DN65-100, stem heater 8800110000 should be used.

If used with V222 DN65-100, stem heater 8800112000 should be used.

In other applications, yoke heater part no 8800109000 for Forta should be used. Capacity for the yoke heater is: Ambient temp  down to -10°C or media temp down to -8°C  

 

For more on stem heaters, see Lessons Learned Article #12578.