TA STAD valve insert IMI TA DN20–34 mm with coupling, without drain (model 52851120)

TA STAD valve insert by IMI TA is a replaceable control element designed for regulating flow in radiator and hydronic heating systems. Compatible with valve bodies that accept DN20–34 mm inserts, this unit is supplied with a coupling and does not include a drain outlet. It is intended for use with thermostatic or manual valve bodies to enable balancing and temperature control across heating circuits.

Advantages

The valve insert provides precise flow regulation and stable hydraulic balancing when fitted into compatible valve bodies. Its modular design allows straightforward replacement without changing the entire valve body, reducing maintenance time and cost. Supplied with a coupling for secure connection, the insert is engineered for reliable operation in typical residential and light-commercial heating systems.

Suitable for

• Replacement of worn or malfunctioning valve inserts in DN20–34 mm radiator valves
• Hydronic heating systems requiring flow balancing and temperature control
• Installation in thermostatic or manual valve bodies where a drain outlet is not needed

Key specifications

• Compatibility: designed for valve bodies accepting DN20–34 mm inserts
• Connection: supplied with coupling for secure fit
• Drain: no integrated drain outlet
• Function: control insert for flow regulation and hydraulic balancing
• Application: suitable for radiator and hydronic heating circuits

How to use

Shut down the heating circuit and isolate the section before removing the existing insert. Extract the old insert from the compatible valve body and check the seating and internal threads for wear or debris. Fit the supplied coupling if required by the valve body design, then insert the TA STAD valve insert into the valve body ensuring correct orientation and seating. Reassemble the valve body, restore system pressure and perform a leak check. Adjust the connected thermostatic head or manual actuator as needed to achieve the desired flow and temperature balance.

Usage recommendations

Use in systems with compatible DN20–34 mm valve bodies and follow manufacturer guidance for torque and sealing. Inspect seating surfaces and replace any damaged components prior to installation. For optimal hydraulic balancing, commission the system after installation and verify flow rates and temperature differentials across the circuit.