Stainless Steel Valves have been used in chemical, petrochemical, petroleum, paper, mining, electricity, liquefied petroleum gas, food, pharmaceuticals, water supply and drainage, municipal services, machinery and equipment, electronics industry, urban construction and other fields.
Valve is the pipeline fluid delivery system control unit, which is used to change the passage cross-section and the media flow direction,including Stainless Steel Ball Valves(including 1PC Ball Valve,2PC Ball Valve and 3PC Ball valve), Stainless Steel Gate Valves ,Stainless Steel Global Valves,Stainless Steel Check Valves, Stainless Steel Y-Strainers,Needle Valves,Bibcock Valves and so on. And we also can supply Kinds of Brass Ball Valves .
Material:Stainless Steel 304, Stainless Steel 316
Size:1/8"-4"
Threads:NPT,BSP,BSPT,EN,DIN,JIS,etc
Pressure:200Psi-1000Psi
Application:Oil,Gas,Water,Steam and so on Fluids.
Stainless Steel Valves Stainless Steel Valves,Stainless Steel Ball Valves,Ball Valves,Stainless Steel Flange Ball Valve HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , http://www.zifengpipeline.com
I. Temperature: The active ingredients of bacterial biopesticide are protein crystals and living spores. Under low temperature conditions, spores are slow to propagate in pests, and protein crystals are not easy to function. According to the test, the efficacy of applying the bacterial biopesticide at a temperature of 25-30 ° C is 1-2 times higher than that at 10-15 ° C.
Second, humidity: Bacterial spores in bacterial bio-pesticides prefer a humid environment. Therefore, the greater the humidity in the field, the higher the efficacy, especially the spraying of powdered biological pesticides should pay attention to the field humidity. Generally, the bacteria powder is sprayed when there is dew in the morning and evening, so that the microbial agent can adhere to the stems and leaves of the crop to promote spore propagation and improve the efficacy.
Third, the sun: the ultraviolet rays in the sun have a killing effect on spores. According to the test, direct sunlight for 0.5 hours, the spore mortality rate is about 50%; direct radiation for 1 hour, the spore mortality rate is 80%. In addition, ultraviolet radiation can degrade the parasitic crystals. Therefore, spraying biological pesticides should be carried out in the evening or on cloudy days.
4. Rainwater: Shortly after spraying the biological pesticides, in case of heavy rain, the bacteria sprayed on the stems and leaves of the crops will be washed away to reduce the efficacy; but if it rains after 5 hours of application, it will not only be rained, but not only It will not reduce the control effect, but will have a synergistic effect.
Author: gorge
Source: "Agricultural Resources Guide"
Bacterial bio-pesticide is a new type of protective agent that is currently used in the pollution-free cultivation of vegetables. Since the weather conditions directly affect the bacterial activity in the bacterial pesticides, which affects the effect, special attention must be paid to the weather conditions during use.
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