Belimo ZG-TF2 Adaptor Kit

The Belimo ZG-TF2 Crankarm Adaptor Kit is a field-proven solution for damper actuator retrofit applications where direct coupling to the damper shaft is physically obstructed or impossible. Specifically engineered for the Belimo TF series actuators, this kit enables seamless integration of TFB(X) spring return actuators into existing mechanical linkages, effectively replacing legacy foot-mounted, crankarm-style units from Honeywell, Johnson Controls, and Barber Colman. The package includes a heavy-duty TG-TF mounting bracket, the KH-TF-1 crankarm featuring a secure retaining clip, and all necessary Grade 5 equivalent bolts and nuts for high-torque HVAC environments.

Designed for both interior and exterior duct mounting, the ZG-TF2 adaptor ensures precise torque transmission and alignment, maintaining the 95-degree rotation required for tight shut-off and modulating control. For senior contractors, this kit is the professional standard for HVAC mechanical accessories when converting old gear-train systems to modern Belimo TF24-SR or TF24-US platforms. It eliminates the need for expensive shaft extensions in short-shaft configurations while ensuring the actuator maintains a square geometry to the ductwork, preventing premature wear on the actuator linkage.

• Direct Retrofit Compatibility: Easily replaces obsolete foot-mounted actuators from Barber Colman (Siebe), Honeywell, and JCI without extensive field modifications.
• Robust T-Bracket Construction: Features a high-gauge steel mounting bracket designed to withstand the stress of spring-return operations.
• Universal KH-TF-1 Crankarm: Includes a 5/16-inch slot crankarm for flexible linkage adjustment and consistent mechanical advantage.
• Versatile Application: Supports both internal and external duct mounting for TF series actuators, ideal for tight mechanical rooms.
• Precision Alignment: Prevents binding and side-loading on the damper shaft, ensuring accurate stroke and position feedback.

Does this kit work with the Belimo LF series?
No, this kit is specifically sized for the TFB and TFX actuator frame. You would need the ZG-LF2 for LF-series applications.

What is included in the ZG-TF2 package?
The kit contains one (1) ZG-TF mounting bracket, one (1) KH-TF-1 crankarm with a retaining clip, and three (3) bolts with nuts.

Can I use this for a short-shaft installation?
Yes, this crankarm adaptor kit is the preferred method for mounting TF actuators when the damper shaft length is insufficient for a standard universal clamp attachment.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.