Pilot operated pressure relief valve is a new structure of safety valve. Mainly used in petroleum,
chemical, electric power, metallurgy and city gas and other fields, is pressurized equipment,
container or pipeline optimal overpressure protection device. Its main advantage is the variable spring
direct acting pilot valve indirect effect, improves the action sensitivity, and the main valve adopts a
sleeve piston type, double seal valve structure, high action precision, good repeatability, return fast,
no leakage, can bring high back pressure, long life, such as discharge working stable and reliable work,
it also available online adjusting, opened repeatedly jumped after emissions, still can automatically back seat,
tight closing, convenient operation and maintenance.
A46F先导式安全阀主要材料：
零件名称 Name of part AX46Y/F材料 Materials KAX46Y/F材料 Materials 阀体 Body WCB WCB 阀瓣 Disc 2Cr13/2Cr13+PTFE 1Cr18Ni9Ti/1Cr18Ni9Ti+PTFE 导向套 Guide sleeve 1Cr18Ni9Ti 1Cr18Ni9Ti 弹簧 Spring 50CrVA 50CrVA O型圈 O type ring 氟橡胶 Viton 氟橡胶 Viton 阀盖 Bonnet 25 25 导阀 Pilot valve 部件 Part
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先导式安全泄压阀是一种新颖结构的安全阀。主要用于石油天然气、化工、电力、冶金和城市燃气等领域，是受压设备、容器或管路上的最佳超压保护装置。其主要优点是变弹簧直接作用为导阀间接作用，提高了动作的灵敏度，而且主阀采用套筒活塞式，双重密封阀座结构，动作精度高、重复性好、回座快、不泄漏、能带高背压排放、工作等命长、工作稳定可靠，它还可在线调校，反复启跳排放后，仍然能自动回座，关闭严密，操作维护方便。
