Order high quality Workplace, Lockout and Tagout, Lockout Devices & Hasps products online now. Exclusively for trade and business customers. We are fully operational today and continue to take orders via the website 24 hours a day, 7 days per week, 365 days per year.

Product Features
- Adjustable Butterfly Valve Lockout
- Locks out valve in seconds by feeding S806 cable lockout device through desired eyelet and around valve neck
- Durable, lightweight thermoplastic material is chemical resistant and performs effectively in extreme environments
- Directional application arrows allow for ease of installation and minimize user error
- Stainless steel rivet allows device to smoothly pivot open and closed to ensure proper fit
Product Details
The Master Lock No. S3920 Butterfly Valve Lockout Device locks out virtually any butterfly valve in just seconds with use of S806 adjustable locking cable. The easy-to-use wedge-shaped device features a stainless steel rivet allowing device to smoothly pivot open and closed to ensure proper fit and directional application arrows allow for ease of installation and minimize error. Made of durable, lightweight Zenex™ thermoplastic material, device is chemical resistant and performs effectively in extreme environments.
- Product Number: S3920
- Colour: Red
- Description: Commercial Boxed Packaging
- Master Carton Quantity: 24
Understanding Stock Statuses
At Advanced Safety, we use visual stock status icons to help you quickly understand product availability while browsing. Here's what each label means when shopping for PPE, safety footwear, workwear, or first aid supplies.

Products marked as "In Stock" are held in our warehouse and typically ship within 24 hours (if ordered before 2pm). You can log in or create an account to see real-time stock levels and plan your order with confidence.

"Limited Stock" means there are only a few units left of that product or size variant. We recommend ordering soon, especially for high-demand items. Log in to confirm availability or reserve remaining stock.

These items are not stocked in-house and are ordered directly from our suppliers once your order is placed. Delivery timelines vary based on manufacturer lead time. We'll confirm ETA with you before finalising dispatch.
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