Siemens DDC PTM6.1PSI20-M-R Module 320788-704 This indicates the specific pressure

This indicates the specific pressure level (in inches of water column) at which the internal diaphragm will "fall" or open the circuit

Robust Construction: Forged brass body and brass trim resist de-zincification and mechanical wear

In commercial HVAC and industrial process systems

The system is powered by the GMX24-MFT-X1 actuator

verify if your specific sub-model includes the auxiliary switch or feedback add-ons

Siemens DDC PTM6.1PSI20-M-R Module 320788-704 This indicates the specific pressureThe Siemens DDC PTM6. 1PSI20 M R is a core direct drive control component designed for integrating high precision actuator feedback within legacy and modern Siemens building automation systems. As a Positioning Module Refurbished unit, it provides the bridge between the central DDC processor and field level electric motors, facilitating exact movement for HVAC damper control and water flow valves. This specific PTM module utilizes 20 feedback signals