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ESFR Early Suppression Fast Response Sprinkler
1.Introduction
Early suppression fast response sprinkler specially designed for dealing with high risk of fire, this product is
specially design and testing, compared with normal sprinkler, it features short response time, large flow, the
droplet diameter is large, extinguishing efficiency is high, dealing with fire in the method of early suppression
and cooling, so more suitable for protecting the elevated goods, in the height of 12m building to protect the
tiered goods in 10.7m high. And in most cases, no need to use other normal sprinkler in the shelf.
This sprinkler adopts the world’s latest Φ2.5mm high strength and quick response bulb from JOB company
in Germany, the response time index RTI≤28(ms)1/2, so the bearing strength is high and the bulb response
time is fast. The sprinkler splash plate and frame constitute a wide field, thus ensuring to put out the fire on
the top of the shelf, the sprinkler center has a powerful water column to pass through the shelf and put out
the fire at the bottom of the shelf.
2.Technical features
name | model | thread | flow coefficient | rated pressure | test pressure (full inspection) | bulb diameter | Bulb RTI |
early suppression fast response | ESFR | R3/4 | 200 | 1.2MPa | 3.45MPa | Φ2.5 | 28(ms)1/2 |
3.The designed reference data
1) the max. install height: 12m
2) the max. install spacing: 3.7m
3) the max. protection area: 9.3m2
4) the min. protection area: 7.4m2
5) the thermal bulb working temperature: 68°C and 93°C
6) upright and pendent optional
4.Installation, usage and maintenance
During installation, should pay attention not to damage the bulb to avoid affect the thermal performance. In the
process of wrench and twist, do not use spanner to wrench the supporting arm to deformation and affect the
sealing performance (note: the bulb temperature can be chosen according to the needs of users)
Special remind to users:
1.Ensure the sprinkler sealing tightening torque is 10~20N.m. The tightening torque absolutely not more than
29N. M, cannot twist the supporting arm, otherwise, the sprinkler will be deformed and cause leakage.
2.When install the sprinkler, suggest to use our company produced special spanner. If the sprinkler can"t seal
after installation, must not add tube on spanner to install. Please check if the pipe fitting is qualified (our
company produced sprinkler are all pass through thread inspection).
Price: ESFR-20 USD4.38/pc
ESFR-25 USD7.25/pc
