FISHER-ROSEMOUNT DELTA V  VE4009 NEW MD Plus Controller

FISHER-ROSEMOUNT DELTA V  VE4009 NEW MD Plus Controller

FISHER-ROSEMOUNT DELTA V  VE4009 NEW MD Plus Controller

 机械密封又称端面密封(Mechanical seal)，是旋转轴用动密封。机械密封性能可靠，泄露量小，使用寿命长，功耗低。毋须经常维修，且能适应于生产过程自动化和高温，低温，高压，真空，高速以及各种强腐蚀性介质。含固体颗粒介质等苛刻工况的饿密封要求。机械密封是靠一对或几对垂直于轴作相对润动的端面在流体压力和补偿机构的弹力(或磁力)作用下保持接合并配以辅助密封而达到的阻漏的轴封装置。齿轮油泵对机械密封的要求，机械密封与软填料密封比较如下：
    机械密封优点     
    1)密封可靠，在*运转中密封状态很稳定，泄露量很小，其泄露约为软填料密封的1%：
    2)使用寿命长，在油，水介质中一般可达1～2年或更长。在化工介质中一般工作半年以上：
    3)擦功率消耗小，其摩擦功率仅为软填料密封的10%～50%
    4)轴或轴套基本上不摩损：
    5)维修周期长。端面磨损后可自动补偿，一般情况下不需要经常性维修：
    6)抗震性好，对旋转轴的振动以及轴对密封腔的偏斜不敏感：
    7)适用范围广，机械密封能用于高温，低温，高压，真空，不同旋转频率，以及各种腐蚀介质和含磨粒介质的密封。
    机械密封缺点
    1)较复杂，对加工要求高
    2)安装与更换比较麻烦，要求工人有一定的技术水平。
    3)发生偶然性事故时，处理较困难。
    机械密封价高密封前的准备工作：
    1)检查机械密封的型号。规格是否合设计图纸的要求，所以零件(特别是密封面，辅助密封圈)有无损伤。变形。裂缝等现象，若有缺陷，必须更换或修复。
    2)检查机械密封各零件的配合尺寸，粗糙度，平行度是否符合设计要求。
    3)使用小弹簧机械密封时，应检查小弹簧的长短和刚性是否相同。
    4)检查主机的窜动量。摆动量和绕度是否符合技术要求，密封腔是否符合安装尺度，密封端盖与轴是否垂直，一般要求：轴窜动量不大于±0.5mm：轴摆动量(旋转环密封圈处)不大于0.06mm：轴zui大绕度不大于0.05mm：密封端盖与垫片接触平面对中心线的不垂直度允许差0.03～0.05mm。
    5)应保持清洁，特别是旋转环和静止环密封面及辅助密封圈表面应无杂质、灰尘，不允许用不清洁的不檫拭密封面。
    6)不允许用工具敲击密封元件，以防止密封件被损坏。

ANELVA 869-8097-001 CABLE, ASSY, COMPUTER
ANELVA 890-0013 PRECISION ADJ. PRESSURE SWITCH (ROBITECH)
ANELVA 890-0017-06 GAUGE
ANELVA 909-0508 CABLE ASSY
ANELVA 9170-SS513 O RING AS568 #170 (N33039292)
ANELVA 94-8481-00817 DRKV CMA SCREW CAPS
ANELVA 95-11101215 SEAL
ANELVA 95-11204425 O-RING SEP MV (N33001207)
ANELVA 95-11204495 O-RING
ANELVA 95-11204585 GASKET 953-9210
ANELVA 95-11317855-1A MEKA LOCK SA16
ANELVA 95-11508985 BC30CA  AC SERVO MOTOR
ANELVA 95-20203 ABSORBER FOR CRC-420
ANELVA 989-0001 CHAIN ASSY SENSOR
ANELVA 989-0047 FLAT CABLE
ANELVA 999-0065 VALVE CHECK TEFLON 1079
ANELVA A-14-37594 HEATER  CIRCULAR PY124X24
ANELVA A11-23422 FACING ELECTRODE UPPER PLATE SHIELD
ANELVA A11-25577 AL SHUTTERLESS PUMPING SHIEKD FOR LT-TI/LT-TIN
ANELVA A11-25580 SUS SHUTTERLESS PUMPING SHIELD FOR AL-CU
ANELVA A11-26164 ANELVA TARGET SHIELD FOR TIN KITS
ANELVA A11-26167 ANELVA TARGET SHIELD FOR AL-CU
ANELVA A11-26249-4 RING SHIELD 8" FOR FULL FACE
ANELVA A11-26474 WAFER HOLDER FOR 1060
ANELVA A11-27494 SP LOCK CYLINDER INTER-STOP ANE
ANELVA A11-32475 COVER RING FOR TIN + LT/TIN ANELVA KITS
ANELVA A11-34807 ANELVA COVER RING FOR AL-CU KITS
ANELVA A11-35563 I-4100PW396 COVER H250
ANELVA A11-36138 ANELVA LT-TIN TARGET SHIELD
ANELVA A11-62766-02 EXHAUST CHAMBER SHIELD (UP)
ANELVA A12-00838 HOLDER SHIELD PLATE
ANELVA A12-02158 BELT ASSY CL C
ANELVA A12-03382 SHIELD, COVER (3)
ANELVA A12-04234 SHIELD, RING HOLDER
ANELVA A12-05166 UP/DOWN CYLINDER ASSY
ANELVA A12-05168 UP/DOWN CYLINDER ASSY FOR UPPER ARM AM2
ANELVA A12-18477 INFUSION RING 4*306AGS
ANELVA A12-19168-04 SEP ARM CONT. PCB ASSY
ANELVA A12-23608 WAFER PRESSER FOR 5"
ANELVA A12-23608-5 WAFER PRESSER FOR 6"
ANELVA A12-35545 CHAMBER SHIELD (SUS)
ANELVA A12-35545-3 CHAMBER SHIELD (SUS)
ANELVA A12-50021 FORK SEP, 8"
ANELVA A12-50284 ANELVA ETCH COUNTER ELECTRODE
ANELVA A12-50284-04 SHIELD RING
ANELVA A12-54511 CHAMBER SHIELD (PARTS ASSY A12-02500)
ANELVA A12-54512 CHAMBER SHIELD No.2 (PART ASSY A12-02500)
ANELVA A12-54513 CHAMBER SHIELD No. 3 (PART ASSY A12-02500)
ANELVA A12-56647-3 ETCH SHIELD GATE VALVE
ANELVA A12-58065 PY281 TEFLON RING
ANELVA A12-58466-4 UPPER SHIELD
ANELVA A12-58467 UPPER SHIELD (SS)
ANELVA A12-58467-03 UPPER SHIELD (SS)
ANELVA A12-58592 RING HOLDER PY221
ANELVA A12-58599 PY 8" WAFER HOLDER COMPLETE SP
ANELVA A12-62133 PY 232 RING HOLDER COMPLATE SP
ANELVA A12-62134 PY254 RING HOLDER
ANELVA A12-66274 SHIELD RING
ANELVA A12-66777 LOWER SHIELD
ANELVA A12-66778 SHIELD LOWER (2) AL
ANELVA A12-67384 SENSOR SHIELD PLATE
ANELVA A12-68479 228 SHIELD RING FOR 5" ETCH
ANELVA A12-72127 BATCH SENSOR
ANELVA A12-72506 FULL FACE SP HOLDER PEDESTAL COVER
ANELVA A12-72507 ANELVA 6-HOLE DEPO RING FOR LONG THROW TIN/TIN