法蘭連接鑄鋼閘閥適用于公稱壓力PN1.6-42.0 MPa（Class 150-2500），工作溫度≤600℃的石油、化工、火力電站的等各種工況的管路上，切斷或接通管路介質(zhì)。

  Flanged ends cast steel gate valve are used to cut or connect the pipe media under nominal oressure between PN1.6-42.0MPa（Class 150-2500）,working temperatures≤600℃. in oil industry,chemical industry,fossil-fired power plants.

其主要結(jié)構(gòu)特點(diǎn)有：

1.產(chǎn)品結(jié)構(gòu)合理、密封可靠、性能優(yōu)良、造型美觀。

  Rational structure,reliable sealing,excellent performance,pretty appearance.

2.密封面堆焊Co基硬質(zhì)合金，耐磨、耐腐、抗擦傷性能好，使用壽命長(zhǎng)。

  Co-radix alloy welded sealing surface,anti-wearing, erosion-proof abrasion-proof and longer use life.

3.閥桿經(jīng)調(diào)質(zhì)及表面氮化處理，有良好的抗腐蝕性及擦傷性。

  The surface and adjusting media of the valve shaft are nitrogenized so shta it is erosion and abrasion resistant.

4.公稱壓力≥15.0MPa（Class900）中腔采用自緊密封式結(jié)構(gòu)，密封性能隨壓力升高而增強(qiáng)，保證了密封性能。

  PN≥15.0MPa（900）, the middle cavity uses a self-tightening sealing structure to have the seling performance reinforced along with the pressure rise so as to ensure the sealing performance.

5.零件材質(zhì)及法蘭、對(duì)焊端尺寸可根據(jù)實(shí)際工況或用戶要求合理選配，滿足各種工程需要。

  The material of the filling and the flange size can be chosen and matched according to the applications and the requirements of the use's. That can satisfies all kinds of working requeirements