JB-70 type hand, electric dual-purpose metering pumps for all small and medium-sized oil plus Canada, gas stations, farm machinery stations, supply and marketing cooperatives, factories and mines fleet, vehicles, ships and other units to send a variety of suction Oil, then how to use in the maintenance and repair it? Now introduce you to JB-70 hand, electric dual-use metering pump repair and maintenance methods. JB-70-type hand, electric dual-purpose metering pump repair and maintenance 1, should always check the vane pump, flow meter oil gun and the smooth flow of oil within the pipeline. If not smooth should promptly find the reasons and maintenance. 2, always keep the conductive rubber wheel clean, and should prevent coating insulation dirt. 3, move, repair the machine, the power should be cut off and the explosion-proof switch knob to "stop straw position, so as not to cause unsafe electric operation. 4, into the pipe end filter should always check the cleaning. The tube screw can be drawn out of the filter, be careful not to break the filter when it is cleaned, the broken filter should be replaced in time 5, the whole machine has worked for 500 hours, the vane pump, oil gun and pipe should be disassembled and cleaned 6, In order to simplify the structure, this machine is not equipped with lighting fixtures, such as the user to observe the counter number to be according to the time, should be equipped with explosion-proof lights, the use of ordinary lamps and flashlights, etc. Extended reading: Motor Top Ten Guangzhou World Expo China Construction water exhibition pump manufacturers ranked ptc exhibition industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)
Double-Convex Spherical Lens
Double-Convex Lens, also named Bi-Convex Lens,composing of two convex surfaces, has a positive focal length. DCX Lens is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5. It is used in beam expanders,projection optics systems, optical viewers applications etc.
We also supply kinds of plano-convex spherical lenses,plano-concave spherical lenses,bi-convex spherical lenses,bi-concave spherical lenses,meniscus spherical lenses,special spherical lenses,achromatic spherical lenses,ball lenses,sphere lenses etc..
Specification of our Spherical Lens as follow:
*Material: BK7,fused silica,MgF2,BaF2,CaF2,ZnSe,ZnS,Ge or other optical crystals
*Dimension Tolerance +0.0 -- -0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure: lambda/2 at 633nm on plano side
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical
*Coating : AR coating options available :MgF2, VIS 0°, VIS-NIR, NIR I, and NIR II
Custom Wide Variety of Diameters and Focal Lengths.
Double-Convex Spherical Lens,Double-Convex Lenses,Double-Convex Ar Coated Spheric Lenses,Double-Convex Spheric Lens
China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com