The ZSTZ series vertical glass ball head is the key component parts of automatic fire extinguishing system. Used for fire detection and sprinkler to control or extinguish the fire. Widely used to protect the light of restaurants, hotels, shops, commercial buildings, storage warehouse, underground garage, garment factory, risk level, can also protect the building of the grave danger level.
  Technical parameters:

1. Nominal diameter: 15 mm diameter, connecting thread: R1 / 2 ", 100% detection.

2. Rated working pressure: 1.2 MPa, factory test pressure: 3.0 MPa, 100% carried out.

3. Flow coefficient : K = 80 ± 4

4. glass ball diameter: 3mm, 5mm