Professional motor maintenance and repair center motor maintenance process: cleaning the rotor - replace the carbon brush or other parts - vacuum class F pressure dipping paint - drying - school balance.
1. The use environment should be kept dry frequently, the surface of the motor should be kept clean, and the air inlet should not be obstructed by dust or fibers.
2. When the thermal protection of the motor continuously occurs, it should be ascertained that the fault is from the motor or the overload or the setting value of the protection device is too low, and the fault can be put into operation.
3. It should ensure good lubrication of the motor during operation. The general motor runs for about 5,000 hours, that is, the grease should be replenished or replaced. When the bearing is overheated or deteriorated during operation, the hydraulic pressure is changed in time. When replacing the grease, the old lubricating oil should be removed, and the oil groove of the bearing and the bearing cap should be cleaned by gasoline, and then the ZL-3 lithium base grease fills the cavity between the inner and outer rings of the bearing by 1/2 (for 2 poles). And 2/3 (for 4, 6, 8 poles).
4. When the end of the bearing life, the vibration and noise of the motor will increase significantly. When the radial clearance of the bearing reaches the following values, the bearing should be replaced.
5. When removing the motor, the rotor can be taken out from the extended end or the non-extended end. If it is not necessary to remove the fan, it is convenient to remove the rotor from the non-shaft extension. When the rotor is pulled out of the stator, damage to the stator winding or insulation should be prevented.
6. When replacing the winding, you must write down the form, size and number of turns of the original winding, wire gauge, etc. When the data is lost, you should obtain it from the manufacturer and change the original design winding at will, often making one or several performances of the motor. Deteriorated, even unable to use.
Concerned about surprises
Tag: Number of turns, clearance, stator winding, maintenance, maintenance, maintenance
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REDUCER Type welded/seamless CON REDUCER ECC REDUCER
Standard: ASME/ANSI B16.9 ANSI/ASME B16.11 ANSI/ASME B16.28
BSEN10253-2 BS EN10253-4
Size:1/2''~48''(Seamless); 16''~80''(Welded)
Wall thickness: Sch5~Sch160\XXS
Manufacturing process: Hot Extruded , cold extruded ,pressed , etc.
Material:
Carbon steel:
FSGP PG370W PT370
.ASTM / ASME A234: WPB - WPC - WP1WP11 - WP12 - WP5 - WP22 - - WP91
ASTM / ASME A/SA 420: WPL6 - WPL3EN 10216-2: P195GH - P235GH - P265GH-P355Nh
20MnNb6 - 16Mo3 - 8MoB5-4 - 14MoV6310CrMo5-5 - 13CrMo4-5 - 10CrMo9-10-15NiCuMoNb5-6-4 - X11CrMo5X11CrMo9-1 - X10CrMoVNb9-1X10CrWMoVNb9-2 - X20CrMoV11-1former BS-DIN-AFNOR equivalent grades)
HIGH YIELD STEEL FOR PIPELINE AND OFFSHORE FITTINGS
ASTM A860 / MSS-SP75: WPHY 42WPHY 46 - WPHY 52 - WPHY 60-WPHY 65 - WPHY 70 grades
WPHY 80 only as per MSS-SP75 EN 10208-2: L245NB - L290NBL360NB - L415NB - L360QBL415QB - L450QB - L485QB - L555Q
Stainless steel:
304/SUS304/UNS S30400/1.4301
304L/UNS S30403/1.4306;
304H/UNS S30409/1.4948;
309S/UNS S30908/1.4833
309H/UNS S30909;
310S/UNS S31008/1.4845;
310H/UNS S31009;
316/UNS S31600/1.4401;
316Ti/UNS S31635/1.4571;
316H/UNS S31609/1.4436;
316L/UNS S31603/1.4404;
316LN/UNS S31653;
317/UNS S31700;
317L/UNS S31703/1.4438;
321/UNS S32100/1.4541;
321H/UNS S32109;
347/UNS S34700/1.4550;
347H/UNS S34709/1.4912;
348/UNS S34800;
Alloy steel:
ASTM A234 WP5/WP9/WP11/WP12/WP22/WP91;
ASTM A860 WPHY42/WPHY52/WPHY60/WPHY65;
ASTM A420 WPL3/WPL6/WPL9;
Duplex steel
ASTM A182 F51/S31803/1.4462;
ASTM A182 F53/S2507/S32750/1.4401;
ASTM A182 F55/S32760/1.4501/Zeron 100;
2205/F60/S32205;
ASTM A182 F44/S31254/254SMO/1.4547;
17-4PH/S17400/1.4542/SUS630/AISI630;
F904L/NO8904/1.4539;
725LN/310MoLN/S31050/1.4466
253MA/S30815/1.4835;
Nickel alloy steel:
Alloy 200/Nickel 200/NO2200/2.4066/ASTM B366 WPN;
Alloy 201/Nickel 201/NO2201/2.4068/ASTM B366 WPNL;
Alloy 400/Monel 400/NO4400/NS111/2.4360/ASTM B366 WPNC;
Alloy K-500/Monel K-500/NO5500/2.475;
Alloy 600/Inconel 600/NO6600/NS333/2.4816;
Alloy 601/Inconel 601/NO6001/2.4851;
Alloy 625/Inconel 625/NO6625/NS336/2.4856;
Alloy 718/Inconel 718/NO7718/GH169/GH4169/2.4668;
Alloy 800/Incoloy 800/NO8800/1.4876;
Alloy 800H/Incoloy 800H/NO8810/1.4958;
Alloy 800HT/Incoloy 800HT/NO8811/1.4959;
Alloy 825/Incoloy 825/NO8825/2.4858/NS142;
Alloy 925/Incoloy 925/NO9925;
Hastelloy C/Alloy C/NO6003/2.4869/NS333;
Alloy C-276/Hastelloy C-276/N10276/2.4819;
Alloy C-4/Hastelloy C-4/NO6455/NS335/2.4610;
Alloy C-22/Hastelloy C-22/NO6022/2.4602;
Alloy C-2000/Hastelloy C-2000/NO6200/2.4675;
Alloy B/Hastelloy B/NS321/N10001;
Alloy B-2/Hastelloy B-2/N10665/NS322/2.4617;
Alloy B-3/Hastelloy B-3/N10675/2.4600;
Alloy X/Hastelloy X/NO6002/2.4665;
Alloy G-30/Hastelloy G-30/NO6030/2.4603;
Alloy X-750/Inconel X-750/NO7750/GH145/2.4669;
Alloy 20/Carpenter 20Cb3/NO8020/NS312/2.4660;
Alloy 31/NO8031/1.4562;
Alloy 901/NO9901/1.4898;
Incoloy 25-6Mo/NO8926/1.4529/Incoloy 926/Alloy 926;
Inconel 783/UNS R30783;
NAS 254NM/NO8367;
Monel 30C
Nimonic 80A/Nickel Alloy 80a/UNS N07080/NA20/2.4631/2.4952
Nimonic 263/NO7263
Nimonic 90/UNS NO7090;
Incoloy 907/GH907;
Nitronic 60/Alloy 218/UNS S21800
All reducers, either eccentric or concentric, decreasethe effective size of the pipe. With smaller crosssectional area there is increased frictional resistanceto the flowing material and an increase systempressure.The eccentric reducer has the reducing outlet end off center. It will line up straight with one side of the inlet but not with the other outlet. This reducer is harder to
manufacture than the concentric reducer and costs more. One advantage over the concentric reducer is that can
be hung or suspended flush against a flat ceilling or wall. This lends greater support to the piping system and many times reduces the required space. When used in horizontal piping systems with the straight
side up, it acts as a trap for foreign material. When installed straight side down, it prevents trapping of foreign material.
The concentric reducer is made with both inlet and outlet on a common center line. This reducer is less ostly t manufacture than the eccentric typeand is adaptable to most piping installations.
Pipe Reducer,Concentric Reducer,Stainless Steel Pipe Reducer,Reducer Pipe
HeBei GuangHao Pipe Fittings Co .,LTD (Cangzhou Sailing Steel Pipe Co., Ltd) , https://www.guanghaofitting.com