The pendant water curtain nozzle is one of the important components in the fire protection system. It is usually combined with the deluge alarm valve, water supply pipe network and detection alarm device to form a water curtain fire protection system. The pendant type water curtain nozzle is suitable for buildings that need to be protected by water curtains. It is mainly used for cooling protection of windows, door openings, fire shutter doors, theater curtains, etc. It can also play a fire barrier role.

Specifications and models of pendant water curtain nozzles:

Model: ZSTMA

Flow coefficient: 28~115

Spray angle: 160°

Minimum working pressure: 0.10Mpa

Thread size: 1/2; 3/4; 1

The following is a selection table of conventional models of pendant water curtain nozzles:

Working principle of pendant water curtain nozzle:

When a fire occurs, the detection and alarm device will alarm and open the deluge alarm valve to supply water to the pipe network system. When the water flows through the nozzle of the sprinkler head, dense granular water droplets will be ejected from the semicircular opening in a predetermined direction to form a water curtain to cool and protect fire shutter doors, theater curtains, etc. It can also play a role in fire prevention and isolation.

The spray curve of the pendant water curtain nozzle:

The following are the front and side views of the pendant water curtain nozzle when spraying:

Purpose of pendant water curtain nozzle:

The pendant water curtain nozzle is used to continuously spray water to form a water curtain to protect surfaces threatened by fire and form fireproof separation. Commonly used in the following scenarios:

1. For fire separation: can be used around stages, windows, escalators, spiral stairs and building atriums;

2. For protective cooling: It can be used in fireproof roller shutters, glass curtain walls, fire doors, steel components and other places.

Water curtain nozzle types:

1. According to the nozzle structure: curtain-type water curtain nozzles (slit-type water curtain nozzles and rain-type water curtain nozzles), window-type water curtain nozzles, and cornice-type water curtain nozzles.

2. According to the purpose of the nozzle: fire separation water curtain nozzle and protective cooling water curtain nozzle

3. According to the installation method: horizontal water curtain nozzle and pendant water curtain nozzle

Water curtain nozzle structure type:

The structural feature codes and usage feature codes of the water curtain nozzle are as follows:

①Type A: represents a water curtain nozzle with a water curtain inclination angle (the angle between the nozzle inlet axis and the water outlet axis) of 0°.

②Type B: Indicates a water curtain nozzle with a water curtain inclination angle of 90° and only one water outlet.

③Type C: represents a water curtain nozzle with a water curtain inclination angle of 90° and two water outlets.

④D type: indicates a water curtain nozzle with a water curtain inclination angle other than 0° or°.

⑤Type G: Indicates water curtain nozzles only suitable for fire separation.

⑥L type: Indicates water curtain nozzles only suitable for protection and cooling.

⑦T type: Indicates a universal water curtain nozzle suitable for fire separation, protection and cooling.