結構 與特點Structural advantages and features：

1.產品按國家標準GB12235設計制造檢驗，密封可靠，性能優良。

2.閥、閥座密封面用鐵基合金或司太立(stellite) 鈷基硬質合金堆焊而成， 耐磨、耐高溫、耐腐蝕、抗擦傷性能好、使用壽命長。

3.可采用各種配管法蘭標準及法蘭密封面型式，滿足各種工程需要及用戶要求。

4.閥體材料品種齊全，墊片可根據實際工況或用戶要求合理選配，能適用于各種壓力、溫度及介質工況。

5.可按用戶要求設計制造不同結構形式和連接形式的止回閥，為各種設備配套使用。

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.

標準與規范Standards and norms

性能參數Performance parameter