ENGINEERED FOR THE PROCESS
Rotary Airlock Valve Dimensions and Drawing Checklist
Use this checklist to record installation dimensions for a new rotary airlock or a replacement valve. This page explains what to measure; it is not a model-by-model catalogue of numerical dimensions.
Prepare a dimension sheet for your installation
Fill in a project and dimension worksheet
Record dimensions and operating conditions in one place. The worksheet works in your browser, can be printed, and can save your completed answers as a text file for email. It is not a certified drawing.
Download blank worksheet (TXT)
No model dimensions are pre-filled. Mark unknown measurements as unconfirmed and attach your drawing for review.
Model-specific dimensions must be confirmed on an approved project drawing. A nominal inlet size or an existing model number alone does not establish that a replacement will fit.
Record measurements consistently
- State the units on your sketch and identify the inlet and outlet.
- Record each flange separately: opening, outside dimensions, hole count, hole diameter and bolt centres.
- Mark the mounting faces used for the face-to-face height measurement.
- Show the drive side, shaft projection and available maintenance space.
Send supporting information
- A dimensioned sketch or existing installation drawing.
- Overall and flange photos, plus the existing nameplate if replacing a valve.
- Any dimensions that cannot yet be verified, clearly marked as unconfirmed.
- Material, capacity, temperature and pressure conditions for the selection review.
Do not measure or access moving machinery. Follow the site isolation procedure and use qualified personnel for on-site checks.
DIMENSION REVIEW
Dimensions to confirm before manufacture
There is no universal rotary airlock dimension table: body series, capacity, pressure duty, drive and flange standard all change the installation envelope. Use this checklist to compare a new valve with the available space or an existing unit.
Send a nameplate photo, overall photos and measured interfaces. A final approved drawing should govern manufacture; nominal valve size alone is not sufficient.
Send dimensions for reviewDRAWING CHECKLIST
Identify the mounting faces and drive space
Reference sketch only; it is not to scale and does not show a manufacturing specification. Use the actual unit or approved drawing to identify the mounting faces and record every required measurement.
Request a project-specific dimensioned drawing
- Complete the fillable dimension worksheet, stating mm or inches for every measurement.
- Send inlet and outlet opening dimensions, flange bolt pattern, face-to-face height and available drive and maintenance space.
- Add material, required capacity, pressure and temperature. Mark unknown measurements as unconfirmed and reference any existing drawing or nameplate.
Request an interface and drawing review
Paste the worksheet answers into Requirement / notes. Describe any existing drawing or photos you can provide; the enquiry form does not upload files.
FROM MEASUREMENTS TO DRAWING REVIEW
Choose a configuration before approving its drawing
Record the installation envelope first, then compare it with a configuration suited to the process. A matching flange or overall height does not confirm capacity or pressure performance.
New airlock installation
Review the rotary airlock valve configuration alongside your inlet and outlet pressure, required throughput and completed worksheet. Confirm mounting faces, drive orientation and service space on the proposed drawing.
Fixed replacement interfaces
Review a customized rotary valve configuration when the existing flange pattern, face-to-face height or drive position cannot change. Mark fixed dimensions and allowable space separately, and identify measurements still requiring confirmation.
Review the worksheet and fixed interfaces
Paste the worksheet answers and drawing reference into Requirement / notes. Request confirmation of both the operating duty and installation drawing before ordering.
APPLICATION NOTES
Check fit and operating requirements together
The main design objective is comparing envelope and flange dimensions during layout or replacement work. Confirm inlet size, outlet size, shaft height, overall length and drive clearance before fixing the valve size, rotor and drive arrangement.
Treat published dimensions as a selection reference and confirm the project drawing before fabrication. Sercan reviews these details against capacity, installation interface and maintenance access before issuing a project drawing.
Recommended project checks
- Provide representative material and bulk density data.
- State normal and maximum temperature and pressure conditions.
- Confirm flange dimensions, available height and drive orientation.
- Define the expected duty cycle and maintenance target.
TECHNICAL FAQ
Questions before selection
Are rotary airlock valve dimensions standardized?
Nominal flange sizes may follow a project or regional standard, but overall height, shaft arrangement, bolt pattern and drive envelope vary by manufacturer and duty.
Which dimensions are essential for a replacement valve?
Confirm inlet and outlet openings, flange outside dimensions, bolt pattern, face-to-face height, shaft or drive orientation and the available maintenance space.
Can an existing model number replace measured dimensions?
A model number helps identify the unit, but an approved interface drawing or verified measurements are still recommended before manufacture.