MZ-300 type helmet type diving apparatus using the maximum operating depth of up to 300 meters, available for use by divers breathing air or helium oxygen mixture; it has two kinds of supply, mainly by water or by air if the bell cord, umbilical cord supply failure, emergency gas supply can carry cylinders by divers, divers to return safely the surface of the water, the main technical performance index: 1 using the depth of 0-300 meters; 2 by air or water submersible bell cord, can also be used for emergency cylinders gas supply; 3 diving mask (helmet) the gas supply pressure of 6-14 kg / square centimeter; 4 stage regulator output pressure of 7-10 kg / cm2; 5 umbilical cord is composed of a gas supply pipe cable composed of strong, gas pipe, sounding pipes and hot water pipes and the working pressure of 45 kg / cm2; 6 air diving mask weighs 5 kg, 12 kg weight air diving helmet;
Maximum use depth of 300 m
[gas supply pressure] 6-14KG/ square centimeters
[traffic] 500 L / min
[outline dimensions (mm)] 385*355*345
[air] 12KG
MZ-300 type diving helmet is a newly developed product in our country. It has the advantages of safe, reliable, sensitive, comfortable, comfortable, easy to wear, clear vision, convenient underwater activities and so on;
The helmet is widely used in the air and mixed air conventional diving and saturation diving, underwater cutting, welding, camera, efficacy, salvage, and other underwater engineering;
According to the need, this helmet can be used with dry, wet and hot water jacket, can also be used alone.

Helmet by gas supply hose or gas supply