Note : on pump discharge , the preferred check valves are an in - line spring loaded , swing design with lever and weight or lever and spring 注意:在泵排泄口,首选的止回阀是管内弹簧负载,带杠杆和压铁或杠杆和弹簧的旋启式止回阀。
The measuring principle of the mechanical pressure switch is a spring loaded diaphragm respectively for higher pressure ranges a spring loaded piston T这种机械压力开关的测量原理是使用弹簧负载膜片或者对于一些更高压力范围使用弹簧负载活塞。
The relief valve cover shall be secured with stainless steel bolts and shall utilize a quarter - turn locking joint to capture the spring load of the relief valve 安全阀阀盖应该采用不锈钢螺栓紧固,应该采用四分之一转锁定连接来所定安全阀的弹簧负载。
Note : the 909 is designed so that when the bolts are backed off 1 / 2 " , all the spring load is released from the cover and retained by the check module 注意:系列909的结构使得螺栓松开15毫米后,阀盖施加在弹簧上的所有压力将得到释放,此时弹簧就只是由止回阀模块保持着。
They allow visual checking of chambers and flames . pyrex glass , protected with alloy mesh , provides large viewing area . cast iron frame and housing . automatic , spring loaded shutter 允许视觉检查燃烧室和火焰。派热克斯耐热玻璃,合金网保护,提供大视觉范围。铸铁框架。自动弹簧负载门。