|
压力等级PN(MPa)
Pressyre grade
|
0.25
|
|
泄漏量
Leakage rate
|
额定Kv值的0.5%
0.5%of the rated kv value
|
|
使用温度(℃)
Operating temperature
|
常温(Cold temperature)-40℃∽+250℃
高温(high temperature)+200℃∽+600℃
|
|
允许环境温度(℃)
Acceptable ambient temperature
|
-20℃∽+60℃
|
|
开度
Opening
|
0∽60°或(or)0∽90°
|
|
气源压力
Air pressure
|
500∽800KPa
|
|
气源电压
Power voltage
|
220V.AC 50HZ
|
|
控制信号
Control singal
|
4∽20mA,1∽5V.DC 电动（electric)
4∽20mA,20∽100KPa 气动（pneumatic)
|
|
基本误差
Intrinsic error
|
±2%气动（pneumatic)±2.5%电动（electric)
|
|
回差
Repeatability
|
≤1.5%气动（pneumatic)≤2% 电动（electric)
|
|
死区
Dead band
|
0.8% 气动（pneumatic)0.8% 电动（electric)
|
|
|
阀体
Valve body
阀 板
Valve plate
|
碳钢（Carbon steel)230-450
1Cr18nI9
0Cr17Ni12Mo2
|
|
阀杆
Valve seat
|
2Cr12
1Cr18Ni9Ti
|
|
阀座
Valve sea
|
1Cr18Ni9Ti
0Cr17Ni12Mo2
|
|
衬套
Bushing
|
OCr17Ni12Mo2
1Cr18Ni9Ti氮化处理（Nitrogen treatment）
|
|
填料
Stuffing
|
常温填料用聚四氮乙烯V形填料
高温用柔性石墨或石棉带
Use polytetrafluoroethy lene V-shaped stuffing
for temperature.
Use fldxible graphite or asbestos tape for high
temperature.
|
|
