描述
一次元件或控制设备出现故障有时不能直接被操作员发现,只有异常或报警后才通知热控人员处理。这样对检修人员和运行人员的素质要求就要提高,运行人员要详细介绍故障前后的状态便于热控检修人员能够快速、准确地处理缺陷,减少故障的扩大化,另外许多DCS厂家在产品宣传上都支持卡件热拨,做为控制人员,在运行中更换卡件时一定要做好安全防护措施否则会引起系统变化或负荷变化,尤其数字量卡件。
Ultra-Moog 4693-255-915 Servo Valve New 12 Mo Warranty
MOOG D634-501A SERVO VALVE D634501A REPAIRED
MOOG D664-353K Valve D664353K NEW-NO BOX Free Ship
One-day shipping available
MOOG MOD 225A-159 -8.00 TO 8.00mA HYDRAULIC SERVO VALVE
New Moog D635Z681DA Direct Drive Valve w/Warranty
NEW MOOG CONTROLLER FOR PUMP MOD-063-108A SERVO VALVE
NEW MOOG D661-5009 REV. G SERVO VALVE
MOOG D061-862-A SERVO VALVE TYPE J15-HF120H1