Early suppression fast response

ESFR Sprinklers

ESFR sprinklers for storage fire-protection projects. The model table covers K202, K242 and K363 metric fusible-alloy configurations at 74°C.

K202 / K242 / K363 74°C · Fusible alloy

Select the exact ESFR model using the project storage and hydraulic requirements.

Product images

ESFR sprinkler photographs

Series views and glass-bulb sample details. The glass-bulb photographs do not identify the 74°C fusible-alloy models in the table.

ESFR Pendent Series1 / 4

Specifications

These specifications apply to the 74°C fusible-alloy models in the table. The separate 68°C option has its own configuration details below.

Available K-factors: K14.0 US / K202 metric; K16.8 US / K242 metric; K25.2 US / K363 metric
Operating element: Fusible alloy link
Temperature: 74°C / 165°F
Installation: Upright or pendent
Connections: K202 and K242: DN20 / ¾ in NPT; K363: DN25 / 1 in NPT
Frame material: Copper
Surface finish: Natural copper, without plating
Max. working pressure: 1.2 MPa / 12 bar / approx. 175 psi
Standard packing: Packing requirements confirmed with the order

Available configurations

Upright and pendent configurations at 74°C, with the connection specified for each K-factor.

Configuration	K-factor (US / metric)	Connection	Thermal element	Factory model
ESFR Upright	K14.0 / K202	DN20 / ¾ in NPT	Fusible alloy · 74°C	ESFR-202/74°C UY
ESFR Pendent	K14.0 / K202	DN20 / ¾ in NPT	Fusible alloy · 74°C	ESFR-202/74°C PY
ESFR Upright	K16.8 / K242	DN20 / ¾ in NPT	Fusible alloy · 74°C	ESFR-242/74°C UY
ESFR Pendent	K16.8 / K242	DN20 / ¾ in NPT	Fusible alloy · 74°C	ESFR-242/74°C PY
ESFR Upright	K25.2 / K363	DN25 / 1 in NPT	Fusible alloy · 74°C	ESFR-363/74°C UY
ESFR Pendent	K25.2 / K363	DN25 / 1 in NPT	Fusible alloy · 74°C	ESFR-363/74°C PY

Confirm storage commodity, storage height, ceiling height, spacing, minimum operating pressure and hydraulic data for the exact selected model.

Compare the specifications for each named configuration below. Values apply only to the configuration shown.

A separate 68°C upright/pendent option. These values do not replace the 74°C fusible-element model table above.

Quotation details

Send the ESFR model, storage commodity, storage and ceiling heights, hydraulic requirements and quantity.

ConnectionProvide the required connection size and thread designation.

Working pressureSpecify the working pressure required for your project.

Order quantityState the quantity required for each factory model.

Include the exact ESFR factory model and storage project requirements.