304 Stainless Steel Round Pneumatic Lockout
The BD-Q12 circular pneumatic lockout made of 304 stainless steel, fits 6.7mm–15mm air source connectors. Supports up to 2 padlocks for compressed air energy isolation during maintenance.
- Round Stainless Steel Pneumatic Lockout is a circular lockout-tagout safety device for pneumatic air source connectors. It prevents accidental reconnection of air fittings to pressurized air sources during machine maintenance.
- Constructed from premium 304 stainless steel, this round pneumatic lockout offers excellent rust and corrosion resistance for long-term use in industrial workshops. It comes with multiple precision holes compatible with air connectors ranging from 6.7mm to 15mm in diameter.
- The disc-shaped lockout has space for 2 safety padlocks with shackle diameter less than 8mm, supporting multi-worker lockout management. A printed DANGER DO NOT OPERATE warning label on the front delivers clear on-site safety alert.
- Compact round profile fits tight spaces around air pipelines. Widely used for pneumatic tools, automated production lines and compressed air systems to isolate pneumatic energy and comply with OSHA lockout-tagout safety requirements.
Product Appearance


Core parameters:
- Product Name: BD-Q12 Multifunctional Air Source Connector Lockout
- Main Material: 304 Stainless Steel
- Product Dimensions: Diameter 88mm × Thickness 7.5mm
- Compatible Specifications: Suitable for locking air source connectors with diameters of 6.7mm, 8.9mm, 10.16mm, 12.2mm, and 15mm.
- Padlock Compatibility: Can simultaneously lock two safety padlocks with a shank diameter ≤8mm.
- Core Functions: Locks the pneumatic power device, isolates the compressed air source, and prevents misconnection of the connector.
- Safety Standards: OSHA 29 CFR 1910.147, ANSI Z244.1
- Applicable Industries: Petroleum, Chemical, Manufacturing, Power, Generation, Mining, Water Treatment, Equipment Maintenance
- Main Advantages: Robust and corrosion-resistant 304 stainless steel; multi-hole design adapts to multiple connector sizes; dual/multi-department collaborative locking; tool-free quick installation.
FAQs
1What pneumatic coupling sizes does the BD-Q12 fit?
It fits five common pneumatic coupling sizes: 6.7mm, 8.9mm, 10.16mm, 12.2mm, and 15mm, covering most industrial pneumatic quick couplings.
2What are the material advantages of the BD-Q12?
Made of 304 stainless steel, it boasts excellent heat resistance, corrosion resistance, and impact resistance, sufficient to withstand harsh industrial environments.
3How many padlocks can the BD-Q12 accommodate? Why?
It features two padlock holes (for ≤8mm hooks), allowing two or more workers to collectively lock the same power source, ensuring comprehensive security.
4Is the BD-Q12 easy to install without tools?
Yes. Installation requires no tools: simply rotate to select the correct hole, secure the coupling, and then attach the padlock; isolation is achieved in seconds.
5Does BD-Q12 comply with international safety standards?
Yes, it fully complies with OSHA 29 CFR 1910.147 and ANSI Z244.1 standards, meeting the stringent lockout/tagout (LOTO) requirements in industrial safety audits.




