The diameter of the lifebuoy should not exceed 800mm, and the nominal diameter should not be less than 400mm. The specification of 1.5KG lifebuoy for children is 510*340*90 (mm); the specification of 2.5KG adult lifebuoy is 720*440*105 (mm); the specification of 4.3KG adult lifebuoy is 760*440*105 (mm). The outer field of the lifebuoy should be equipped with a floatable doorknob with a diameter of not less than 9.5 mm and a length not less than 4 times the diameter of the lifebuoy. This cable should be tightened on 4 equidistant positions near the ring body and produce 4 grommets of the same length.

One-piece lifebuoy: a lifebuoy manufactured with multiple overall forming processes of the ring body; lifebuoy in the case: a lifebuoy manufactured by the processing technology of the overall shape of the ring body and the internal filling of raw materials.

The lifebuoy is divided into: a type-integrated life buoy, and b type-a life buoy filled in the casing.

Marking example: the integrated lifebuoy is marked as: lifebuoy GB4302-2007A; the housing-filled lifebuoy is marked as: lifebuoy GB4302-2007B.

Technical standard of lifebuoy:

1. With a diameter of no more than 800mm and a nominal diameter of no less than 400mm.

2. It is made of natural water buoyancy raw materials; the buoyancy of the water should not rely on rushes, cork flakes or cork particles, all other loose granular raw materials or all gas chambers that rely on aeration.

3. It can hold many objects under 14.5kg on the support board for 24h.

4. Possess a lot of quality less than 2.5kg.

5. The arson is completely surrounded for 2 seconds, and will not ignite or melt again.

Lifebuoy wholesale

6. The structure should also withstand the height-to-width ratio from the storage position to the *light-load outgoing waterline or 30m (whichever is greater), and the lifebuoy should be dropped onto the river without endangering the practicability of the lifebuoy or its notes.

7. If the lifebuoy is equipped with spontaneous smoke data signals and fast throwing equipment with self-flashing lights, it should have the quality to be able to operate the fast throwing equipment.

8. There are many doorknob cables with a diameter less than 9.5mm and a length not less than 4 times the diameter of the lifebuoy. The doorknob rope should be tightly wrapped around the periphery of the lifebuoy and fixed at 4 equidistant points to produce 4 grommets of the same length.

Attachment of lifebuoy:

1. Self-lighting floating lights: each vessel *A little less than half of the lifebuoys should be equipped with self-lighting floating lights that meet the standard requirements, so that the information of the lifebuoy and the part of the user can be displayed at night, which is conducive to finding assistance. At this stage, the key to the self-illuminating floating lights in the ship is to use dry batteries as the switching power supply. If the funds of the lifebuoy are put into the water, the self-lighting floating light will automatically float on the river surface, and it will emit milky white glitter.

2. Spontaneous dense smoke data signal: The lifebuoy around the cab of each ship and car has at least 2 spontaneous smoke data signals that meet the standard requirements. When thrown into the lifebuoy, the smoke tank floats on the river with the lifebuoy A thick orange smoke came up.

3. Floatable lifeline: at least one lifebuoy on each side of the ship should be accompanied by a buoyant lifeline that meets the requirements. Its length is usually 30 meters, or twice the distance between the light-load waterline of the ship and the storage point. Choose the larger one.