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主要零件和材質 Main parts and materials

產品結構特點 Construction features

       1、產品設計制造按國家標準GB/T 12235，結構合理，密封可靠，性能優良，造型 美觀。

       2、閥瓣、閥座密封面用鐵基合金堆焊或司太立（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、閥桿經調質及表面氮化處理，有良好的抗腐蝕性和抗擦傷性。

       4、可采用各種配管法蘭標準及法蘭密封面型式，滿足各種工程需要和用戶要求。

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

       6、倒密封采用螺紋連接密封座或本體堆焊奧氏體不銹鋼而成，密封可靠，填料更換可在不停機情況下進行方便快捷不影響系統運行。

1. Product design and manufacturing shall be based on E101 and JB/T 3595 standard, with reasonable structure, excellent performance and beautiful appearance.

2. Pressure self-tightening sealing structure is adopted in the valve middle cavity,and the sealing property is good. The two ends of the branch are welded, and the weld groove can be connected by standard or user's request.

3. The disc and seat cover are made of stellite and cobalt base hard alloy, wear resistant, high temperature resistance, good abrasion resistance and long service life.

4. The valve rod is treated with adjustment and surface nitrification. It has good corrosion resistance and abrasion resistance.

5. The valve cover packing function is reasonable, packing and corrosion inhibitor,sealing and reliable.

6. The valve has an inverted seal structure to ensure that the valve opens and runs without the stem leakage.

7. electric cut-off valve is equipped with DZW series valve electric device, with a small shell, light weight, full functions, appearance beautiful wait for a characteristic,and can be used with programmable computer, can also be equipped with electric device according to the requirements of customers.

產品特征 Spericfications

適用介質：水、氣、油品、天然氣和酸堿腐蝕性介質

適用溫度：-196~425℃

驅動方式：手動、氣動、電動等

公稱壓力：1.0~4.0MPa

公稱通徑：DN50~500mm

Applicable media: water, gas, oil, gas and acid and 

alkali corrosive medium

Applicable temperature: -196~425℃

Driver: manual, pneumatic, electric, etc

Nominal pressure: 1.0~4.0MPa

Nominal size: DN50~500mm

技術規范 Technical specification

試驗壓力 Test prssure

截止閥結構長度和外接尺寸 Main connection dimensions