A, all-weather explosion-proof adjustment valve features.
All-weather explosion-proof regulating valve, also known as drawer-type corrugated explosion-proof regulating valve, as a classification of explosion-proof regulating valve, in addition to having the general explosion-proof regulating valve features such as
1, burn resistance performance qualified, burn resistance test 1 hour no tempering phenomenon.
2, explosion-proof performance qualified, 13 consecutive explosion-proof performance test each time can block the fire.
3, the shell water pressure test qualified. The product structure is reasonable, light weight, corrosion-resistant. Easy maintenance, easy installation, etc.
Second, the all-weather explosion-proof control valve selection.
1, in addition, all-weather explosion-proof regulating valve is also used in specific areas: storage of class A oil with flash point below 28 ℃ and class B oil with flash point below 60 ℃, also suitable for storage of materials capped with nitrogen on the vaulted tank. Drawer type corrugated explosion-proof adjustment valve is generally used with breathing valve to achieve the best results.
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2, although the explosion-proof regulating valve has a good effect, but not any equipment on the need to install, how to properly select the explosion-proof regulating valve is also need to understand, the next will be roughly speaking explosion-proof regulating valve selection principles:
(1) first of all, there is storage flash point of less than 28 ℃ of class A oil and flash point of less than 60 ℃ of class B oil and material to nitrogen capped vault tank, the first choice is the all-weather explosion-proof regulating valve.
(2) when to stop the subsonic propagation of the flame is due to the choice of explosion-proof explosion-proof control valve; storage tanks between the gas phase of the connecting pipeline on each branch, the top of the tank protective gas and oil and gas discharge pipeline on the collection pipe also choose explosion-proof explosion-proof control valve, loading and unloading facilities, oil and gas discharge (or recovery) between the main pipe and the gas phase of each branch pipeline, flammable gas venting pipeline before access to the torch is best to use explosion-proof explosion-proof type Explosion-proof control valve.
(3) Of course, there must be more than these cases, how best to choose the appropriate explosion-proof control valve, still depends on the specific circumstances. Finally, in the installation and use, the necessary pre-inspection is indispensable, which is also to be safer and more secure use of explosion-proof control valves.