结构 与特点Structural advantages and features：

1.产品按国家标准GB12235设计制造检验，密封可靠，性能优良。

2.阀、阀座密封面用铁基合金或司太立(stellite) 钴基硬质合金堆焊而成， 耐磨、耐高温、耐腐蚀、抗擦伤性能好、使用寿命长。

3.可采用各种配管法兰标准及法兰密封面型式，满足各种工程需要及用户要求。

4.阀体材料品种齐全，垫片可根据实际工况或用户要求合理选配，能适用于各种压力、温度及介质工况。

5.可按用户要求设计制造不同结构形式和连接形式的止回阀，为各种设备配套使用。

1.The product accord ng to then at nal standards GB12235desgr manufacture examina ion， the seals rei able.the perfom mance sf ne.

2.Fiap valve， the valve   seat sealing sur lace of iron aloy or stellt e made of co bail based aloy   welding， wear resistant， high temperature.corrosion， anl-abrasion performance and long service   lfe

3.Can use a varty of standard piping f anges   and fang esea ing surface types to meet various project needs and user requird   mens

4.Ful range   of body materials.gasket can be based on actual work ig cond tns or the user   requests a reasonable opt on， can be  apple d to alk nds of pressure， temperature   and me dum cond0ons.

5.Acco ring to user req urements design and   manufacture of various structural forms and connect nformsofronretumvave， for various   equipments.

标准与规范Standards and norms

性能参数Performance parameter