Features of PMK-2 gas masks

The PMK gas mask performs protective functions of various vital systems of a person. There are several modifications of the device, one of them is PMK-2. This article will discuss its purpose, device, characteristics, instructions for use will be provided.

PMK-2 is an improved type of gas mask, consisting of a filtering absorbing box (FPC) and a connection unit. The purpose of the device is to protect the respiratory, visual systems from poisonous, radioactive elements, dust, bacteria, potent substances and gases in the air.

The design of the PMK-2 apparatus is made so that a person can take fluid even in infected conditions.

The gas mask consists of a FPC, which has a cylindrical shape. FPK height - 9 cm, diameter - 11 cm.

The design of the device consists of several elements. Let's list them.

• The front part is equipped with silicate lenses. Protects eyes, face and scalp and respiratory system. Includes body, spectacle assembly, box, fairings and mount. The front part is made of rubber, it can be black or gray.
• The shutter looks like a thin rubber strip that is tucked inward. This improves the sealing of the face of the mask.
• Spectacle knot.
• Fairings are air ducts, the purpose of which is to blow air over the spectacle assembly.
• The mask holder reduces the formation of condensation on the spectacle part, prevents freezing. It looks like a half mask made of rubber with several valves for inhalation.
• The valve manifold distributes the air flow during inhalation and exhalation. It is considered a vulnerable part of the device, since when deformed, poisonous substances can penetrate under the mask.
• Two junction points to the box.
• Plugs.
• The capsule intercom has several types of housing: non-collapsible and collapsible.
• The water system allows for fluid intake in contaminated conditions.
• The headgear or retention system fixes the face mask on the head.
• Connecting tube. The rubber element in a special sheath is equipped with a corrugation. This ensures elasticity and unobstructed air flow in the bend areas. Connects the front and the box.
• The throat is equipped with a flange with cutouts and projections that are located on the fairing and correspond to the cutouts. An inhalation valve is located on the neck. Storage involves sealing the box with several plugs. The top cap is secured with a fairing.

The main characteristics of the gas mask:

• filter resource - 240 hours;
• maximum residence time - 24 hours;
• temperature range -40 ° С ... + 50 ° С;
• breathing resistance on inspiration at an air flow rate of 30 l / min, (Pa) mm of water. pillar - 180 (18);
• audibility of speech up to 95%;
• dimensions - 31x18x18 cm;
• weight - 950 g (without cover).

The service life of the protective device is 15 years.

In order to assemble the PMK-2, you must strictly follow the assembly instructions.

1. The box is inserted into any hole in the mask.Sealing is carried out along the outer zone of the neck. Therefore, the holes are tight and have a small diameter.
2. The fairing is installed on the FPK flange from the inside. When installed correctly, the element hole points towards the valve box. The grill serves as a protection against tight contact between the cover and the entrance at the bottom of the box.
3. The connecting nodes are inserted from either side. It depends on the specific type of work. The junction points appear as two notches on the cheek areas of the mask.
4. The plug is fixed on the opposite side from the nodes.
5. The connection of the FPC with the neck to the mask is made through an adapter. For the KDP and the PMK-2 device, several transitional parts are used. One adapter is connected to the mask using a connecting tube, the second one connects the FPK with an additional cartridge.

To put on the device correctly, a certain sequence of actions is also required:

1. pull the device out of the bag;
2. take the gas mask with both hands by the sealed edges located below;
3. take a side strap in each hand, the thumbs are outside the mask, the rest are inside;
4. stretch the fasteners in opposite directions;
5. chin fixation is performed in the lower part of the obturator;
6. put on the headgear using up / back movements.

PMK-2 is a protective device that does not cause discomfort during work. The device has a frame, canvas bag, which is very convenient for storage.

The above recommendations will help you assemble the gas mask correctly, and clear instructions for use will eliminate mistakes at the most crucial moment.

An overview of the PMK-1 and PMK-2 gas masks in the video.