LQ-SR
Standard Rotary Airlock Valve
General-purpose airlock for gravity discharge of free-flowing powders and granules.
LQ-OEM · Product
Custom OEM Rotary Valve
Built to your drawing: non-standard geometry, integrated transitions and OEM batch supply.
Product Overview
Most of our production is not a catalogue item. Equipment manufacturers send a 2D drawing, a 3D model or a sample, and we build the valve into their machine: non-standard face-to-face length, an inlet transition that matches a hopper outlet, a motor mounted on the opposite side, a special paint colour, or a rotor profile developed for one particular material. This page describes how that works.
Product Structure
Housing
Geometry, flange pattern, transition hopper and mounting feet all built from your drawing or 3D model.
Rotor
Vane count, pocket volume, profile and clearance set to your process requirement.
Shaft & bearings
Shaft extension, keyway and bearing arrangement matched to your drive package.
Sealing
Seal type selected against the material, the pressure regime and your maintenance practice.
Drive
Your preferred motor brand, voltage, protection class and mounting position, or our standard package.
Typical Specifications
| Valve size | Built to drawing — no catalogue size limit |
|---|---|
| Rotor | Custom vane count, profile and pocket volume |
| Rotor speed | Set by drive selection |
| Drive | Customer-specified brand and rating, or our standard package |
| Housing material | Carbon steel / 304 / 316L / other on request |
| Rotor material | Carbon steel / 304 / 316L / wear-protected |
| Tolerance | Critical dimensions per drawing, with inspection report |
| Connection | Any flange pattern or transition supplied by drawing |
Values shown are typical for this product family. Final dimensions, materials and performance are confirmed on the approved drawing before production.
Design Features
- Manufacture from 2D drawing, STEP model, sample part or measured survey
- First-article sample before batch production, with dimensional report
- Drawing revision control and approval before each production run
- Batch traceability by production lot and material certificate
- Packaging and labelling to your incoming goods requirements
Material Options
- Carbon steel — machine frames and general OEM builds
- 304 / 316L — corrosion resistance where the machine requires it
- Wear-protected variants — abrasive material streams
- Customer-specified grades — subject to availability review
Customisation
Every valve in this range can be built to your drawing: face-to-face length, flange pattern, rotor profile, material grade and drive arrangement. Send your drawing and we will quote against it.
Frequently Asked Questions
What do you need to quote an OEM valve?
A 2D drawing or STEP model with the critical dimensions, the material to be handled, required capacity, the drive you intend to use and the annual or batch quantity. If you only have a sample, send photographs with a few key measurements and we can work from there.
Do you sign NDAs?
Yes. We work under customer confidentiality for drawings and we do not publish customer names, drawings or project details without written permission.
What is the minimum batch quantity?
A single first-article sample is possible for development work; production pricing is quoted by batch size. Tell us your expected annual volume and we will quote accordingly.
How do you control consistency across batches?
The approved drawing is frozen per revision, critical dimensions are inspected per lot and recorded, and the same process route and fixtures are used for repeat orders.
Looking for a reliable rotary airlock supplier?
Send us your drawings or application requirements. Let us find the right solution for your equipment.