Petzl | SKU: D160,D009AA00

Petzl Stop Assisted Braking Descender

Name: Petzl Stop Assisted Braking Descender
Brand: Petzl
SKU: D160,D009AA00
Price: 265.43 NZD
Availability: InStock

$265.43 ~~$315.95~~ NZD

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Description

The Petzl Stop Assisted Braking Descender designed specifically for caving. This durable tool can handle low stretch kernmantle ropes with diameters between 8.5 and 11 mm, providing improved control and ease of use during descents. Its ergonomic handle adds to the overall comfort of handling and the stainless steel friction zones ensure long-lasting use for all your caving expeditions.

Features

Descent Control:

The assisted braking system enhances control during descent.
Rope manoeuvres become smoother when passing intermediate anchors.
Compatible with low-stretch kernmantle ropes ranging from 8.5 to 11 mm in diameter.

Comfort:

The ergonomic handle enables effortless rope unblocking and controlled lowering of an individual.
The handle is positioned to face the user, ensuring better control over the rope’s glide.
The design of the handled camming mechanism provides a smooth and comfortable descent.
An engraved installation diagram on the descender offers clear guidance.
The safety gate on the openable side plate facilitates easy rope installation while keeping the device securely connected to the harness.
The elongated connection hole accommodates rotation of the FREINO Z carabiner, helping to prevent the descender from being dropped when transferred from the gear loop to the attachment point.
A stainless steel pulley and cam ensure exceptional durability.

Specifications

Material(s)	Aluminium side plate, stainless steel pulley and cam
Weight	350 g
Rope compatibility	8.5 to 11 mm low stretch kernmantle rope
Certification(s)	CE EN 15151-1, UKCA
Inner Pack Count	1

Technology

Technical Notice

Download the PDF : technical-notice-STOP-2 - 3.80 MB

Declaration Of Conformity

Tips for maintaining your equipment

Download the PDF - 3.56 MB

Inspection

PPE inspection procedure

Download the PDF - 0.18 MB

PPE checklist

Download the PDF - 0.32 MB

Technical Content

Choice of Carabiners for Attaching a Descender With a Safety Gate (I'D S, RIG, STOP...) To The Harness

WARNINGS

Carefully read the Instructions for Use used in this technical advice before consulting the advice itself. You must have already read and understood the information in the Instructions for Use to be able to understand this supplementary information.
Mastering these techniques requires specific training. Work with a professional to confirm your ability to perform these techniques safely and independently before attempting them unsupervised.
We provide examples of techniques related to your activity. There may be others that we do not describe here.

Choice of carabiner for attaching a descender with a safety gate (I’D S, RIG, STOP) to the harness

Key Issues and Risks

When the rope is taut, the carabiner and the device are held in position by the tension.

But when the rope is slack, the device and its carabiner can move about and become poorly positioned. So there is a risk of rubbing on the sleeve, or of cantilever loading between the device and the harness attachment point.

The most important risks to consider

Recommendation on carabiner and accessories

Use an Am'D carabiner and a CAPTIV bar
Choose a locking system suited to your use

Am'D carabiner and CAPTIV bar

Reliability in dirty environments (mud, sand...)

Am'D carabiner and CAPTIV bar

Security of locking

Information

Why this choice?

Am'D

The asymmetry of the D shape allows for good load distribution and helps resist carabiner rotation. For this use, there is only one device to attach, so a wide opening and high capacity are not necessary.

CAPTIV

On devices with a safety gate, the rope can be inserted without detaching the carabiner, so it's possible to fix the device on the carabiner with the CAPTIV bar.
The CAPTIV limits poor carabiner positioning.
The carabiner is held in the position chosen by the user, for example with the locking sleeve on the moving side-plate side of the I'D.
The remaining risk of the locking sleeve rubbing against the harness attachment point must be monitored by the user. It is more or less important depending on the situation and locking system used

Precautions for Use

Precautions for use

Regularly verify that the carabiner stays loaded on the major axis, especially when it is reloaded after having been unloaded.
With an auto-locking carabiner, check at each opening and closing that the sleeve is completely locked.
Install the carabiner with the sleeve facing yourself, (moving side-plate side), to avoid accidental pressure on the locking sleeve from the structure, in case of tight passages or false moves.
Avoid any pressure or rubbing that could damage or unlock the locking sleeve, and/or cause the gate to open.
At work, use a second belay system in addition to your progression system.

Passing a Rebelay on Descent

The many rope manipulations involved in caving can waste precious time. Good organisation allows for efficient rebelay passage, leaving more time for the activity itself.

1. Tether yourself to the anchor when you arrive at its level.

If both hands are required for clipping in, tie off the STOP in order to free your hand from the brake side of the rope.

Tether yourself to the anchor when you arrive at its level.

2. Descend to transfer your weight onto the lanyard.

Remove the STOP and put it back on the rope below the rebelay.

Descend to transfer your weight onto the lanyard.

3. Take up the slack rope to put your weight on the STOP.

Taking up slack requires a foot support.

Two solutions for slippery or overhanging rock:

Put a knee in the loop of slack above the rebelay (a)
Install a foot loop on the anchor (b)

4. Check the installation.

Remove the lanyard from the anchor

Check the installation.

5. Continue your descent; the rope above the rebelay is free for the rest of the group.

Continue your descent.

Example of a tie-off for short stops:

Example of a tie-off for short stops.

Tying Off The Stop Descender

When descending, it is sometimes necessary to let go of the rope to have both hands free for carrying out various tasks. To do this, various tie-offs can be used to immobilise the descender.

Rapid or complete tie-offs can be done in very different ways: only the most conventional ones are presented in this document.

1. Rapid Tie-Off

A stop that requires letting go of the rope in a place where accidental slippage of the descender would not present a risk. For example, when arriving at an intermediate anchor, stopping and hanging on the descender for the time it takes to tether yourself, before removing the descender to transfer it to the rope below. Here, any descender slippage would be quickly stopped by the rope loop of the intermediate anchor, so a rapid tie-off is sufficient. Be sure to keep your body weight on the descender to avoid any movement that could undo the tie-off.

On pre-2019 STOP, with FREINO

Pre-2019 STOP: rapid tie-off with FREINO.

On pre-2019 STOP, without FREINO

Pre-2019 STOP: rapid tie-off without FREINO.

On post-2019 STOP, with FREINO Z

Post-2019 STOP: rapid tie-off with FREINO Z.

On post-2019 STOP, without FREINO Z

Post-2019 STOP: rapid tie-off without FREINO Z.

2. Hands Free Tie-Off

A stop that requires letting go of the rope in a place where accidental slippage of the descender would present a fall risk. For example, stopping to set up an intermediate anchor. Here, nothing could stop any descender slippage: if the user wants to let go of the rope, a complete tie-off must be done.

On pre-2019 STOP, with FREINO

Pre-2019 STOP: hands free tie-off with FREINO.