The explosion-proof product transparent member and the gasket and the gasket and the outer casing are flame passages. Therefore, the gasket is used for the explosion-proof function in this structure. As specified in the standard, the gasket is metal or metal-coated, conforming to the compressible and non-combustible material specified in ISO1210, and the thickness of the gasket and the width of the joint surface are to comply with the requirements of Appendix D. As can be seen from Appendix D, it is not considered as an explosion-proof joint surface. The selection of its parameters is similar to the GB3836.2-83 standard. Therefore, it can be considered that the structure is actually still a sealed structure. It's just that the way it is sealed has changed.
When the transparent member is mounted, the gasket is forced and compressed, so that the gap between the gasket and the transparent member and the gasket and the outer casing tends to be reduced until it can be considered that there is no gap, thereby achieving an explosion-proof effect. Different from the original standard, the contact between the liner and the transparent member and the gasket and the outer casing in the structure is metal-to-metal (since the metal or metal coating is used for the gasket), which avoids the aging of the non-metallic material. Adverse effects, thereby improving the safety of the original structure.
The use of a frame structure is also uncommon in previous structures, and such structures often appear in foreign products. It can be seen that the biggest advantage of this structure is that it is convenient to replace, and the disadvantage is that the structure is more complicated. It is worth noting that the gasket seems to be optional, and the gasket is mainly used to avoid crushing the transparent part during installation. In this structure, the explosion-proof function is a rubber seal, which completely separates the inner and outer chambers, but the strength of the transparent member against the external force still needs to be achieved by the compression of the pressure plate, and cannot rely solely on the strength of the rubber seal. In addition, because the performance of the sealing performance directly affects the explosion-proof performance, a good sealing process should be adopted to ensure the sealing effect.
If some flies survive from the larvicides and grown up, the we can use some Aduticides to kill them. Fly Bait such as Azamethiphos 1% GB (Snip Fly Bait), Thiamethoxam 1% GB (Agita 1GB) usually used for the Public Health while Azamethiphos 10% WP (Alfacron 10) and Thiamethoxam 10% WDG(Agita 10 WDG) and some Pyrethroid products (Cypermethrin, Permethrin), DDVP are usually used in poultry.
Adulticide
Mosquito Larvicide,Mosquito Control,Mosquito Repellent,Mosquito Larvicide Spray
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