MARTIN pneumatic sirens
as from Article No. 2500

for extinguishing and warning systems

Air consumption: approx. 25 l/min. at 0.5 bar  |  approx. 75 l/min. at 1.0 bar

 

Article No. 2500.04
with 1 diaphragm acoustic horn
150 mm long, tuned a‘‘ (880 Hz)


Article No. 2501.04
with 1 diaphragm acoustic horn
105 mm long, tuned d‘‘‘ (1174 Hz)


Article No. 2502.04
with 1 diaphragm acoustic horn,
227 mm long, tuned d‘‘ (587 Hz)


Article No. 2504.04
with 1 diaphragm acoustic horn
315 mm long, tuned a‘ (440 Hz)


Article No. 2505.04
with 1 diaphragm acoustic horn
346 mm long, tuned g‘ (392 Hz)

Air consumption: approx. 35 l/min at 0.5 bar  |  approx. 100 l/min at 1.0 bar

 

Article No. 2511.04
with 2 diaphragm acoustic horns
227 mm and 156 mm long
tuned d‘‘, g‘‘ (587, 784 Hz)


Article No. 2512.04
with 2 diaphragm acoustic horns
295 mm and 227 mm long
tuned b‘, d‘‘(466, 587 Hz)

  • All diaphragm acoustic horns are made of chrome-plated brass. Also available as an ammonia-resistant version.
  • The membrane housing has an air connection and mounting piece with R 1/4“ male thread.
  • Tuning takes place at 0.5; 1; 2 and 3 bar.
  • If the maximum pressure of 3 bar is exceeded, use pressure reducers.

Air connection hose
Article No. 2561.03 suitable for articles 2500.04. – 2509.04, 1 m long, with 2 union nuts R 1/4“

Air connection hose
Article No. 2566.03 suitable for articles 2511.04 and 2522.04, 1 m long with manifold, 1 union nut R 1/4“

Martin pneumatic sirens

Certified quality