Fire Sprinklers

Dry Sprinklers

A dry type sprinkler is a special sprinkler fed from a wet pipe line whose head extends into an area at risk of freezing, with no water inside its barrel. A plug at the end of the extension keeps water in the heated space until the sprinkler opens.

It is used at cold rooms, freezers, unheated canopies and car park entrances to provide protection without changing the rest of the wet system. The extension length is set with the order according to the wall or ceiling thickness.

Dry barrelagainst freezing

To orderextension length

Pendent · sidewallmounting type

Wet linecompatible

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Main Applications

Cold rooms and freezers
Unheated canopies and porches
Car park ramps and entrances
Above loading doors
Cold compartments next to wet systems

Technical Data

Type	Dry type sprinkler
Mounting	Pendent or sidewall (by model)
Extension length	To order (wall or ceiling thickness)
Supply	From a wet pipe line or dry system
Temperature rating	By model
Connection	By model
Approval	UL / FM certificate by model

Material Options

Part	Dry type sprinkler
Body and barrel	By model
Plug	Keeps water in the heated zone
Thermal element	By model
Finish	By model

Which material? As this type is not listed separately in the store, the extension length and connection are defined with you after measuring the wall or ceiling; a wrong length could leave water on the cold side.

Advantages

Freeze Protection in a Wet System

No need to make the whole system dry

Targeted Solution

Used only at cold points

Easy Integration

Added to an existing wet line

Two Mounting Types

Pendent and sidewall

Construction and Design Features

Connection end staying in the heated space
Inner plug holding back the water
Dry extension barrel reaching the cold area
Sprinkler head and thermal element at the end

Write the wall or ceiling thickness and the cold area temperature; we will define the dry type sprinkler with the right extension length.

How to Choose?

Measure the thicknessMeasure the wall or ceiling between heated and cold zones.
Calculate the lengthApply the minimum length rule from the datasheet.
Choose the mountingUse pendent from ceilings and sidewall from walls.
Set the ratingPick a rating suited to the cold area conditions.