MPD (Multi Purpose Device) Descent and Belay
Rope Rescue! Pulley / Rescue Belay / Descent Control
The MPD allows you to go from lowering to raising without changing hardware. More than nine years of research and development went into the patented Multi-Purpose Device (MPD), which features major innovations in advanced technical hardware for rope rescue professionals.
The MPD’s high-efficiency pulley, with an integral rope-grab mechanism, allows it to be used as a lowering device on the main line and belay line systems and be quickly changed over to a raising system without switching out or replacing hardware. The combination of essential features into a single device simplifies on-scene rigging allowing you to expedite the rescue.
The revolutionary MPD increases user safety with:
• Reduced Weight
• Fewer Components
• Faster Rigging
• Quick Changeovers
• Simplified Training
• Lower Risk
The MPD is UL Classified as a Pulley, Descent Control, and Belay device.
• Variable-friction descent control device for rescue systems and rappels
• High efficiency pulley with integral rope-locking mechanism (ratchet) for a haul system
• Built-in becket allows cleaner rigging and more efficient pulley systems
• Allows main line and belay line rigging to be mirrored or twin-tensioned
• Functions as both a lowering brake and as a ratcheting pulley for raising
• Ideal for confined space operations because it converts rapidly to a retrieval line
• The MPD includes a protective Cordura® nylon storage bag and MPD User’s Manual.
| Model/Size | Weight | Rope Size | Color | NFPA RATING (PULLEY, BELAY) | NFPA RATING (DESCENT CONTROL) | 3 SIGMA MBS PULLEY |
| 11 mm* |
1.2 KG (2.6 lbs.) |
11 mm (7/16") | Slate Blue | General Use | General Use |
46 KN (10,341 LBF) |
| 13 mm* | 13 mm (1/2") | Red |
* 11 mm model is designed for and tested with 11 mm rope. 11 mm model UL rated “T” Technical Use for descent control.
**13 mm version designed for use with 12.5 – 13 mm rope. Rope used for certification rounded up to 13 mm per NFPA standards.