VANXON / VALVE GEARBOXES
XWL-R signal worm gear box
XWL-R signal worm gear box, standard 24:1 ratio with adjustable options Max output torque up to 800Nm, perfectly fit DN40-DN300 butterfly valves Self-locking worm drive delivers stable manual valve positioning Built-in mechanical micro switch for full open & full close signal feedback Compatible with DC24V and AC22V control power supply External wiring harness for easy connection to fire & automation control cabinet Integrated cast iron housing with anti-corrosion finish, impact & pressure resistant Visible pointer dial for direct on-site valve status observation Standard ISO mounting flange for fast interchangeable valve assembly Small sample orders and mass volume production both available Each gearbox undergoes torque and signal function full inspection Mainly applied in fire protection, water supply and HVAC pipeline systems
TECHNICAL DETAILS
The details behind the fit.
Review the model, material and connection before confirming your component.
| Model | B80 | B125 | B150 | |
|---|---|---|---|---|
| Speed ratio | 24:1 | 24:1 | 24:1 | |
| Single-player | Input torque | 40 | 40 | 40 |
| Output torque | 300 | 300 | 300 | |
| Limit Adjustment | ±5° | ±5° | ±5° | |
| Recommended to cooperate with butterfly valve DN | 80 | 125 | 150 | |
| Flange outer circle (D1) | 90 | 90 | 90 | |
| Connection hole center (D2) | 70 | 70 | 70 | |
| Convex depth (D3xf) | 6 | 6 | 6 | |
| Number of holes-bolts (N-M) | 4-M8 | 4-M8 | 4-M8 | |
| Square hole connection size M(+0.1/+0.05) | 9.45 | 11.1 | 12.7 | |
| Square hole connection size N(+0.1/-0.05) | 14.1 | 16.1 | 20.2 | |
| Steel extension depth (H1) | 38-58 | 38-58 | 38-58 | |
| Casting handwheel outer circle (w) | 150 | 150 | 150 | |
Published model data is provided for reference. Confirm dimensions, units, material and operating limits against your approved drawing before ordering.
MANUFACTURING
A closer look at the factory.
Machining and assembly at our workshops in Pingyin, Jinan.
COMPANY DOCUMENTS
Qualifications, clearly presented.
Archived copy from our company website. The ISO 9001 certificate shown is dated valid until 24 September 2026; please request the latest copy for supplier approval.
PRODUCTION & STOCK
From individual parts to batches.
A view of our component production and packing. These are shared factory photographs; availability for your selected model is confirmed with the quotation.
EXPORT PREPARATION
Packed for the next journey.
Protective packing, container loading and dispatch from our factory.
CUSTOMER VISITS
Good connections begin in person.
Technical discussions, production reviews and visits to the workshop.



