Hydraulic Alarm ZSJL Minshan Fire Protection

ZSJL Water Motor Gong Product Description:

I. ZSJL Water Motor Gong Minshan Fire Protection Structure and Working Principle:

Structure: Composed of inlet/outlet channel water storage chamber, impeller (inside the water storage chamber), bell cover, bell hammer, etc.

Working Principle: Pressurized water is sprayed through the inlet nozzle (φ3mm) onto the impeller in the water storage chamber, causing it to rotate. The impeller then drives the bell hammer via a linkage shaft to strike the bell cover, producing an alarm sound.

II. ZSJL Water Motor Gong Minshan Fire Protection ZSJL Water Motor Gong Features:

The water motor gong is a mechanical alarm device used in wet alarm valves, deluge valves, and pre-action systems. The bell hammer is made of laminated bakelite, offering high loudness and long service life.

Pressure vs. Loudness Comparison Table:

Inlet Pressure (MPa)                Average Loudness (dB)

0.05                          84.7

0.20                          91.5

0.30                          92.3

1.00                          103.0