一、进口铸钢法兰截止阀概述

进口铸钢法兰截止阀（威盾VTON），Cast steel flanged globe valve，也叫碳钢法兰截止阀，碳钢截门，铸钢截止阀法兰连接，法兰式截止阀，是指采用铸钢材质，法兰连接的截止阀，适用于公称压力PN1．6～16MPa，工作温度-29～550℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。铸钢法兰截止阀驱动方式有手动、齿轮传动、电动、气动等。

Cast steel flanged globe valve (VTON), also known as carbon steel flange globe valve, carbon steel gate, cast steel globe valve with flange connection, is a globe valve made of cast steel material and flange connection. It is suitable for cutting or connecting pipeline media in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, and power industries with a nominal pressure of PN1.6~16MPa and a working temperature of -29~550 ℃. The driving methods of cast steel flange globe valves include manual, gear transmission, electric, pneumatic, etc.

二、进口铸钢法兰截止阀技术参数

接口尺寸:DN10－ DN1000；

压力等级:PN10－ PN320 /125LB － 1500LB；

温度范围:－196℃ －＋500℃；

连接方式:法兰式、对焊、承插焊、螺纹式；

进口铸钢截止阀使用介质：水、油品、气体、蒸汽、燃气等。

进口铸钢截止阀应用石油、化工、液化气、给排水、食品、制药、发电、造纸、城建、矿产、锅炉蒸汽系统、市政各部门等。

Interface size: DN10-DN1000;

Pressure rating: PN10-PN320/125LB-1500LB;

Temperature range: -196 ℃ -+500 ℃;

Connection methods: flange type, butt welding, socket welding, threaded type;

The medium used for cast steel globe valves is water, oil, gas, steam, gas, etc.

Cast steel globe valves are used in petroleum, chemical, liquefied gas, water supply and drainage, food, pharmaceutical, power generation, papermaking, urban construction, mining, boiler steam systems, municipal departments, etc.

三、进口铸钢法兰截止阀产品特点
1、选材考究，符合国际相关标准，结构合理，造型美观。
2、阀瓣、阀座密封面采用铁基合金堆焊或司太立（Stellite）钴基硬质合金堆焊而成，耐磨、耐高温、耐腐蚀、抗擦伤性能好，使用寿命长。
4、阀杆经调质及表面氮化处理，有良好的抗腐蚀性和抗擦伤性。
5、可采用各种配管法兰标准及法兰密封面型式，满足各种工程需要及用户要求。
6、阀体材料品种齐全，填料、垫片可根据实际工况或用户要求合理选配，能适用于各种压力、温度及介质工况。
7、倒密封采用螺纹连接密封座或本体堆焊奥氏体不锈钢而成，密封可靠，更换填料可在不停机情况下进行，方便快捷，不影响系统运行。

1. Carefully selected materials, in compliance with international standards, with a reasonable structure and beautiful appearance.

2. The sealing surfaces of the valve disc and valve seat are made of iron-based alloy overlay welding or Stellite cobalt based hard alloy overlay welding, which has good wear resistance, high temperature resistance, corrosion resistance, scratch resistance, and long service life.

4. The valve stem has undergone quenching and surface nitriding treatment, which has good corrosion resistance and scratch resistance.

5. Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.

6. The valve body material variety is complete, and the packing and gasket can be reasonably selected according to actual working conditions or user requirements, which can be suitable for various pressure, temperature, and medium working conditions.

7. The reverse seal is made by connecting the sealing seat with threads or welding austenitic stainless steel on the body, which is reliable in sealing. The replacement of fillers can be carried out without stopping the machine, which is convenient and fast, and does not affect the operation of the system.

四、进口铸钢法兰截止阀结构图