柱塞阀是一种传统的阀门,但是,自从膨胀石墨出现之后,便有新型柱塞阀问世了。新型柱塞阀无阀杆填料,不产生外漏,故也称无填料柱塞阀或无泄漏柱塞阀。又由于结构简单,容易防腐蚀,所以还称为耐腐蚀柱塞阀。此阀门外观与截止阀相似,但内部没有阀芯、阀座,只有柱塞与上下密封圈。转动手轮,使柱塞上下移动,与下密封圈脱离时,阀门开通。否则,阀门关闭。关 The plunger valve is a traditional valve, but since the advent of expanded graphite, a new type of plunger valve has come out. The new plunger valve without stem packing, does not produce leakage, it is also said no packing plunger valve or leak-free plunger valve. Because of its simple structure, easy anti-corrosion, it is also known as corrosion-resistant plunger valve. This valve looks similar to the cut-off valve, but there is no valve core, seat, only the plunger and the upper and lower seals. Turn the handwheel to move the plunger up and down and open the valve when the lower seal is disengaged. Otherwise, the valve is closed. turn off