Marine Valve Parts,Steel Marine Valve Parts,Marine Valves,Marine Ball Valves,Marine Spare Parts ZhouShan HeCheng Machinery Co., LTD. , https://www.hcmarineparts.com
Pepper disease prevention in June
The common diseases of pepper are bacterial wilt and powdery mildew, etc. Sprayed with targeted drugs to strengthen governance. All stages of the plant must pay strict attention to the infestation of pests and diseases. In each growth period, effective drug control should be carried out according to the disease conditions. At the same time, a new high-fat membrane should be sprayed to increase the efficacy so that no pathogenic bacteria at the diseased site can land. Spraying targeted drugs with new high-fat lipid membranes will greatly increase the utilization of active ingredients in pesticides and fertilizers, avoid fear of solar evaporation, regulate water absorption, and prevent drought and rain.
The valve stem is an important part of the valve.
It is used to drive, connect the actuating mechanism or handle, and directly
drive the spool to move or rotate, so as to realize the function of valve switch
or regulation.Valve stem in the valve opening and closing process is not only
moving parts, stress components, but also seals. At the same time, it is
subjected to the impact and corrosion of the medium, and it also causes friction
with the packing. Therefore, in selecting the stem material, it must be
guaranteed that it has sufficient strength at the prescribed temperature, good
impact toughness, scratch resistance, corrosion resistance. The valve stem is a
vulnerable part, and the mechanical performance and heat treatment performance
of the material should be paid attention to when selecting.The valve stem in the
valve opening and closing process, under tension, compression and torsion force,
and direct contact with the media, as well as the relative motion between the
friction and filler, so in the choice of stem material, must ensure that it
provides adequate temperature strength, good impact toughness, abrasion
resistance and corrosion resistance of.