BD-F34 Universal Butterfly Valve Lock
The BD-F34 universal butterfly valve lock is made of reinforced nylon PA material and features a stainless steel serrated structure. It is tightened via a handwheel screw. It is suitable for medium to large butterfly valves with a handle width ≤40mm and thickness ≤28mm, effectively preventing accidental valve opening during maintenance.
- Reinforced Nylon PA Lock Body — UV resistant, high strength, impact resistant, temperature resistant -57°C to +177°C
- The toothed stainless steel plate firmly grips the valve handle, ensuring a secure lock.
- No tools required: Simply press down the handwheel to open → secure the handle → tighten clockwise to complete installation.
- Press down the handwheel to open the lock → secure it to the butterfly valve handle → tighten clockwise → attach the safety tag and padlock.
- Used with safety padlocks and safety signs to lock energy isolation equipment.
- Customizable laser logo and color (default red); new locking solutions are available.
Product Appearance

Core parameters:
Product Name:BD-F34 Universal Butterfly Valve Lock
Main Material:Reinforced Nylon PA + Stainless Steel
Product Dimensions:92 × 164mm (width × height)
Product Specifications:Applicable handle width: ≤40mm / Applicable handle thickness: ≤28mm; Bottom serration width 45mm, base width 55mm
Core Functions:Stainless steel serrated engagement + handwheel screw tightening provides a tool-free, secure lock for medium to large butterfly valve handles, preventing accidental valve opening during maintenance.
Applicable Industries:Petrochemicals, power energy, water treatment, food and beverage, pharmaceuticals, industrial manufacturing
Main Advantages:Reinforced nylon PA temperature resistance -57°C to +177°C, UV resistance, and impact resistance; stainless steel serrated teeth for secure, non-loosening grip; tool-free, quick-tightening handwheel screws; customizable flame-retardant materials, colors, and logos.




