Special Fire Sprinklers

Fusible-Alloy Fire Sprinklers

A fusible-alloy thermal-element sprinkler family available for upright or pendent installation, with five listed operating temperatures.

K5.6 US / K80 metric ½ in nominal connection class Upright / Pendent 5 temperature ratings

Factory models are shown for order matching. Confirm orientation, thread form, working pressure, finish and required documents before quotation.

Specifications

Product specifications

Compare the listed connection size, K-factor and temperature options. Thread form, working pressure and finish are confirmed with the quotation.

Product type
Fusible-alloy fire sprinkler
Installation options
Upright / Pendent
Nominal connection class
½ in nominal connection class
K-factor
K5.6 US / K80 metric
Thermal element
Fusible alloy
Temperature options
72°C / 162°F · 74°C / 165°F · 140°C / 284°F · 180°C / 356°F · 204°C / 399°F
Factory series
ZSTZ.X 80-[T]°C Y

Available models

Factory models by operating temperature

Select the required temperature and confirm the installation orientation when requesting a quotation.

Factory ModelTemperature
ZSTZ.X 80-72°C Y72°C / 162°F
ZSTZ.X 80-74°C Y74°C / 165°F
ZSTZ.X 80-140°C Y140°C / 284°F
ZSTZ.X 80-180°C Y180°C / 356°F
ZSTZ.X 80-204°C Y204°C / 399°F

The model table does not establish certification coverage. Final specifications follow the agreed quotation and order documents.

Product photographs

Compare the construction and visible markings. Open a photograph to enlarge it; confirm the required configuration with the quotation.

Upright fusible-element sample
Upright fusible-element sampleEnlarge photograph →
Pendent fusible-element sample
Pendent fusible-element sampleEnlarge photograph →

Quotation confirmation

Details required before production

Send the exact order requirements so the supplied sprinkler matches the approved quotation and sample.

OrientationSpecify upright or pendent installation.
ConnectionConfirm the required thread form and mating connection.
Operating requirementConfirm working pressure, temperature and finish.
Order informationProvide quantity, destination and required documents.

Send your fusible-alloy sprinkler requirement

Start with orientation, temperature and quantity. Add connection, destination and marking or document requirements when available.