主要零件和材質 Main parts and materials

產(chǎn)品結構特點 Construction features

1、產(chǎn)品設計制造按 E101和 JB/T 3595標準的規(guī)定，結構合理，性能優(yōu)良，造型美觀。
2、閥門中腔采用壓力自緊式密封結構，密封性能好。支管兩端為焊接結構，焊接坡口可按標準或用戶要求配接。
3、閥瓣、閥座密封面采用司太立（stellite）鈷基硬質合金堆焊而成，耐磨、耐高溫、抗擦傷性能好、使用壽命長。
4、閥桿經(jīng)調質和表面氮化處理，有良好的抗腐蝕性和抗擦傷性。
5、閥蓋填料函深度合理，填料加緩蝕劑，密封可靠。
6、閥門具有倒密封結構，保證閥門開啟運行時，不經(jīng)閥桿外漏。
7、電動截止閥配有DZW系列閥門電動裝置，具有殼體小，重量輕，功能全，外形
美等特點，并可與程控電腦配套使用，也可按用戶要求選配電動裝置。
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(chǎn)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：-196~540℃
驅動方式：手動、氣動、電動等
公稱壓力：1.0~4.0MPa
公稱通徑：DN15~250mm
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium
Applicable temperature: -196~540℃
Driver: manual, pneumatic, electric, etc
Nominal pressure: 1.0~4.0MPa
Nominal size: DN15~250mm

技術規(guī)范 Technical specification

試驗壓力 Test prssure

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