Commerical T&P Valve 商用降温减压安全阀
TTP P valve 热防护性能值
tulip p valve 漏斗形阀
Drain lines for T&P valve 用于T和P阀的排水管
T&P relief valve 水器安全阀
P Needle valve 针形阀
New digital P-Q valve 新型数字式P
The T&P valve shall be a Watts Regulator Company Series 40, 140, 240 or 340.
这些温度压力安全阀应该是美国瓦茨公司系列40， 140， 240或340温度压力安全阀。
Imported from Italian COSTER valve with big cover, flabelliform fog-spray, good handle with no jam, nozzle P, D, R is commutative, meeting with the different testing requirements.
引进原装意大利COSTER大盖嘴阀门，雾状呈扇形、不堵、手感好，P、D、R喷嘴可互换，以达到不同检测喷雾要求。
The structure and the working principle of electronic-hydraulic valve are analysed and the P-I (Pressure-Control current)characteristic equation of electronic-hydraulic valve is derived.
通过对电液阀结构与工作原理的分析，导出了电液阀的p—I（压力—控制电流）特性方程式。
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