截止閥

截止閥    Shut-off valve

    適用于公稱壓力PN16~420bar（class150~2500），工作溫度≤620℃的石油、化工、制藥、化肥、電力行業等各種工況的管路上，切斷或接通管路介質。

其主要結構特點：

1、產品結構合理、密封可靠、性能優良、造型美觀；

2、密封面堆焊Co基硬質合金，耐磨、耐蝕、抗擦傷性能好，使用壽命長；

3、閥桿經調質及表面氮化處理，有良好的抗腐蝕性及耐磨性能；

4、公稱壓力≥250bar（class1500）中腔采用自密封結構，密封性能隨壓力升高而增強，保證了密封性能；

5、閥門設有倒密封結構，密封可靠；

6、零件材質及法蘭、對焊端尺寸可根據實際工況或用戶要求合理選配，滿足各種工程需要。

    It is suitable to cut off or connect the pipeline medium in pipelines with various working conditions such as nominal pressure PN16 ~ 420bar (class 150 ~ 2500) and working temperature ≤620 ℃.

Its main structural characteristics:

1. Reasonable product structure, reliable seal, excellent performance and beautiful appearance;

2. The sealing surface is welded with Co-based hard alloy, which has good wear resistance, corrosion resistance, abrasion resistance and long practical life;

3. The valve stem undergoes quenching and tempering and surface nitriding treatment, and has good corrosion resistance and wear resistance;

4. The self-sealing structure is adopted in the middle cavity with nominal pressure ≥250bar (class1500). The sealing performance is enhanced with the increase of pressure to ensure the sealing performance.

5. The valve is provided with an inverted seal structure, which is reliable in sealing.

6. Parts materials, flanges and butt-weld end dimensions can be reasonably selected according to actual working conditions or user requirements to meet various engineering needs.

技術參數  technical data

公稱壓力：ANSI 150~ANSI2500

公稱通徑：DN15~DN400

溫度范圍：-196℃~+620℃

適用介質：水、蒸汽、油品等

Technical data

Nominal pressure: ANSI 150 ~ ANSI600

Nominal diameter: DN15 ~ DN400

Temperature range: -196 ℃ ~ + 620 ℃

Applicable medium: water, steam, oil, etc.