一、进口衬胶止回阀概述

进口衬胶止回阀，Rubber lined check valve，是指阀体内腔表面覆有可供选择的各种橡胶，具有强度高、耐腐蚀性能好的特点，专用于控制一般腐蚀性介质，防止介质倒流的阀门；

美国威盾VTON衬胶止回阀阀瓣都是围绕阀座外的（销）轴、镶嵌在阀体与阀盖之间形成的特殊凹槽内、启闭灵活，密封可靠。除了阀体，阀瓣外，复位弹簧也全部包衬了耐一般腐蚀的橡胶，设计合理的弹簧，使阀瓣在低压区内也能产生足够的密封比压，保证阀门在低压力区密封的可靠性。主要产品有：衬胶止回阀，衬里止回阀，全衬止回阀，衬胶逆止阀，衬胶单向阀，衬胶法兰止回阀，衬胶升降式止回阀，衬胶旋启式止回阀。

Rubber lined check valve refers to a valve whose inner surface of the valve body is covered with various rubber options, which have high strength and good corrosion resistance. It is specifically designed to control general corrosive media and prevent media backflow;

The VTON rubber lined check valve disc of the American shield is wrapped around the (pin) axis outside the valve seat, embedded in a special groove formed between the valve body and the valve cover, with flexible opening and closing and reliable sealing. In addition to the valve body and valve disc, all reset springs are also lined with corrosion-resistant rubber. A well-designed spring ensures that the valve disc can generate sufficient sealing pressure in the low-pressure area, ensuring the reliability of the valve's sealing in the low-pressure area. The main products include: rubber lined check valves, lining check valves, full lining check valves, rubber lined check valves, rubber lined one-way valves, rubber lined flange check valves, rubber lined lift check valves, and rubber lined swing check valves.

二、进口衬胶止回阀零件材料及主要性能参数

三、进口衬胶止回阀结构尺寸图