主要零件和材质 Main parts and materials

产品结构特点 Construction features

1、产品设计制造按 E101和 JB/T 3595标准的规定，结构合理，性能优良，造型美观。
2、阀门中腔采用压力自紧式密封结构，密封性能好。支管两端为焊接结构，焊接坡口可按标准或用户要求配接。
3、阀瓣、阀座密封面采用司太立（stellite）钴基硬质合金堆焊而成，耐磨、耐高温、抗擦伤性能好、使用寿命长。
4、阀杆经调质和表面氮化处理，有良好的抗腐蚀性和抗擦伤性。
5、阀盖填料函深度合理，填料加缓蚀剂，密封可靠。
6、阀门具有倒密封结构，保证阀门开启运行时，不经阀杆外漏。
7、电动截止阀配有DZW系列阀门电动装置，具有壳体小，重量轻，功能全，外形
美等特点，并可与程控电脑配套使用，也可按用户要求选配电动装置。
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.

产品特征 Spericfications

适用介质：水、气、油品、天然气和酸碱腐蚀性介质
适用温度：-196~540℃
驱动方式：手动、气动、电动等
公称压力：1.0~4.0MPa
公称通径：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

技术规范 Technical specification

试验压力 Test prssure

截止阀结构长度和外接尺寸 Main connection dimensions