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introduction：leserSafety valve manufacturer GermanyLESERIs a professional production of safety valve enterprises，Good quality，Imported in original package。With approximate200annualLESERThe company is a German pioneer in the field of mechanical engineering，Be established in1818years，Safety valve is a professional manufacturer，It produces the worlds leading safety valve products。LESERThe safety valve products are common23Series composition（diameterDN10~400,NPS1/2”~16”），They can be adapted for applications in all industrial sectors。GermanyLESERSafety valve cover Users can choose between closed or open valve covers，A closed valve cap combined with an airtight cap or opening device prevents media from entering the surrounding environment。The open valve cover protects the spring from heat and prevents condensation，For example, for steam boilers。 Safety valve manufacturers explain safety valve operation methods
2017-10-17 Reading quantity 190
introduction：leserMicro-lift safety valve leserMicro-opening safety valve is a kind of safety protection valve，Its opening and closing parts are in a normally closed state under the action of external forces，When the medium pressure in the equipment or pipe rises，It automatically opens when the specified value is exceeded，Prevent medium pressure in pipelines or equipment from exceeding specified values by discharging medium outside the system。Different from full opening safety valve，The opening stroke height of the micro-opening safety valve is：≤0.05d0（Minimum discharge throat diameter） leserInstallation of micro-opening safety valve：
2017-10-17 Reading quantity 188
introduction：Siemens safety relay The Siemens safety relay is an electrical control device，Is when the input quantity（Excitation quantity）When the changes meet the specified requirements，An appliance that causes a predetermined step change in a controlled quantity in an electrical output circuit。 one.Composition of safety relay A safety relay is a combination of many relays and circuits，In order to complement each others abnormal defects，Complete function of relay with correct and low error operation，The lower the error and failure value，The higher the safety factor，Therefore, it is necessary to design a variety of safety relays to protect different grades of machinery，The main purpose is to protect machine operators who are exposed to different levels of risk。 two.The role of safety relays
2017-10-17 Reading quantity 206
introduction：The water-cooled permanent magnet synchronous motor is a synchronous motor which is excited by a permanent magnet and generates a synchronous rotating magnetic field，The permanent magnet acts as a rotor to generate a rotating magnetic field，Three-phase stator winding reacts through armature under the action of rotating magnetic field，Induced three-phase symmetrical current。 At this time the kinetic energy of the rotor is converted into electrical energy，Permanent magnet synchronous motorFor generator；In addition，When the stator side passes a three-phase symmetrical current，Because the three phase stator is different in space position120，So the three-phase stator current creates a rotating magnetic field in space，The rotor is moved by the electromagnetic force in the rotating magnetic field，This converts electrical energy into kinetic energy，Water cooled permanent magnet synchronous motor is used as motor。
2017-10-16 Reading quantity 254
introduction：one、Three-phase asynchronous motorRotation principle of： The prerequisite for a three-phase asynchronous motor to rotate is to have a rotating magnetic field，The stator winding of three-phase asynchronous motor is used to generate rotating magnetic field。We know，However, the voltage between the phase and the phase of the phase supply is different in phase120metric，The three windings in the stator of the three-phase asynchronous motor are also different in spatial orientation120The degree of，In this way，When a three-phase power supply is fed into the stator winding，The stator winding creates a rotating magnetic field，The process of its production is shown in the figure1As indicated。The figure is divided into four moments to describe the process of generating the rotating magnetic field。The current changes every period，The rotating magnetic field rotates once in space，That is, the rotation speed of the rotating magnetic field is synchronized with the change of the current。The rotation speed of the rotating
2017-10-16 Reading quantity 263
introduction：1、YSeries motor is cage rotor asynchronous motor。 2、YSeries motor with、Energy conservation、Low noise、Low vibration、Light weight、Reliable performance、Convenient installation and maintenance。 YA series of motors can be used to drive a variety of machinery。Like ventilator、compressor、Water pump、crusher、Cutting machines and other equipment，Concurrent coal、Machinery industry、Power plants and various industrial and mining enterprises are used as prime movers。
2017-10-16 Reading quantity 532
introduction：Siemens 1LE0 Series motor technical characteristics: （1）、Frame and junction box materials：Gray cast iron； （2）、Standard color：Stone ash（RAL 7030）； （3）、2、4、6 、8Pole motor reach GB18613-2006 Standard energy efficiency class 2 level，and Could satisfy IEC 60034-30 standard IE2 Efficiency class； （4）、Rated power：0.55 kW ~ 315 kW（50 Hz）； （5）、Optimized compact structure； （6）、Standard mounting structure type（Conform to IEC 60034-7 Standard specification）：IM B3、IM B5、IM B35 Etc.； （7）、All electric motors are designed to be protected IP55（IEC 60034-5）； （8）、FS1) 280 ~ 355 Re-lubrication device is standard，FS1) 100 ~ 250 As an option； （9）、towards FS 100 ~ 355 Range motor，Optional enhanced cantilever force design； （10）、Motor optional PTC or PT100 Thermistor or KTY84-130 Winding protection；
2017-10-16 Reading quantity 278
introduction：Common silver linear guideComplete list of specifications and models： HGSeries linear guide：HGR15-R1000-H，HGR20-R1000-H，HGR25-R1000-H，HGR30-R1000-H HGR35-R1000-H，HGR45-R1000-H，HGR55-R1000-H，HGR65-R1000-H HGHSeries heavy load slider：HGH15CAZ1H，HGH20CAZ1H，HGH25CAZ1H，HGH30CAZ1H，HGH35CAZ1H，HGH45CAZ1H，HGH55CAZ1H，HGH65CAZ1H HGWSeries heavy load slider：HGW15CCZ1H，HGW20CCZ1H，HGW25CCZ1H，HGW30CCZ1H HGW35CCZ1H，HGW45CCZ1H，HGW55CCZ1H，HGW65CCZ1H HGHSeries heavy load slider：HGH20HAZ1H，HGH25HAZ1H，HGH30HAZ1H，HGH35HAZ1H HGH45HAZ1H，HGH55HAZ1H，HGH65HAZ1H
2017-10-16 Reading quantity 411
introduction：In common usestafGuide type： BGXH15BNBGXH20BNBGXH20BLBGXH25BNBGXH25BEBGXH25BLBGXH30BNBGXH30BEBGX30BL BGXH35BNBGX35BEBGX35BLBGXH45BNBGXH45BEBGXH45BL BGXH15FNBGXH15FLBGXH20FNBGXH20FLBGXH25FNBGXH25FLBGXH25FE BGXH30FNBGXH30FLBGXH30FEBGXH35FNBGXH35FLBGXH35FEBGXH45FNBGXH45FLBGXH45FE BGXS15BSBGXS15BNBGXS15BLBGXS20BSBGXS20BNBGXS25BSBGXS25BN BGXS30BSBGXS30BNBGXS30BLBGXS30BLBGXS35BSBGXS35BNBGXS35BLBGXS35BE BGXS45BNBGXS45BLBGXS45BE
2017-10-16 Reading quantity 327
introduction：The controller is mainly divided into two categories: brush and brushless motor，According to its main chip can be divided into ordinary type and intelligent type。The intelligent main chip is the single chip microcomputer，The common type is mostly switching power supply chip，It is often referred to as analog。According to its function can be divided into electric and power two categories，Electric type is the main type in our country，The power type is also becoming fashionable。
2017-10-16 Reading quantity 293
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