How to Choose a Pressure Gauge Movement

A pressure gauge movement must match the sensing element, pointer and mounting arrangement of the instrument. Start with a drawing or reference sample, then compare the mechanical specification before approving a production order.

Check the mounting dimensions

Confirm the movement envelope, mounting hole positions, plate spacing and linkage connection. Similar model names or photographs are not enough to establish interchangeability.

Confirm pointer shaft and rotation

Compare shaft diameter, exposed length, taper or pointer fitting, rotation direction and required pointer travel. Identify the exact version when a product lists alternative dimensions.

Review the transmission specification

Check the transmission ratio and gear module against your drawing. Discuss spring and adjustment requirements where relevant to your design. Share any critical tolerances and the inspection method with the supplier.

Select materials for the application

Specify the materials of the plates, gears and shaft. Consider the conditions inside the case, including temperature, humidity and vibration. Evaluate the process connection and sensing-element materials separately when selecting the complete gauge.

Approve a sample in the complete instrument

Check mechanical fit, pointer operation and the required measurement performance after assembly. Use the instrument manufacturer's guidance for pressure range and operating limits. Agree on drawing revision, inspection criteria and packaging before ordering production quantities.

Prepare a useful quotation request

Send your model, drawing or sample, required quantity, material requirements and operating conditions. Our OEM inquiry checklist lists the details to include.

Compare the FY(A)C60-H(G)20W reverse movement, FYAC100W-G14/16 stainless steel movement and other models by their specifications.