Several metric sizes have also been produced. Larger sizes can also be produced on application. The materials of construction range from carbon steel flanges with stainless steel upper outlet tips to completely stainless steel, Inconel, Incoloy, Hastalloy and Monel.
Smooth surfaces entrain lots of air to assure maximum dilution of exhaust gases.
Closed-loop controls for immediate fire snuffing by main charge of carbon dioxide, dry chemical, Halon substitute, nitrogen or steam. Water or steam injection can also be used for special cases. Built-in backup charges, can be either automatically or manually activated. Widely used on offshore platforms, LNG and petrochem applications. Testing can be done with a wide range of gases and flow rates.