Various forms of fire box can be selected according to actual needs, with the corresponding fire hydrant and accessories. . Xi'an flange butterfly simple structure, small size, light weight fire box plots, only by a few parts. And just rotate 90 ° to quickly open and close, easy to operate Xi'an fire boxes, the valve has a good fluid control features. Butterfly valve plate is mounted on the pipe diameter direction. Cylindrical channel in the valve body, disc-shaped disc around the axis of rotation fire box production, rotation angle between 0 ° ~ 90 °, the rotation to 90 °, the valve is open all license conditions. Flange butterfly valve in the fully open position, the disc thickness is only when the medium flows through the body resistance, produced by the valve pressure drop is small, it has a better flow control characteristics. Butterfly shells sealed and two metal seal types. Elastic sealing valves, seals can be mounted on the body or peripheral boards to Tip. Fire box factory | Shaanxi JW fire extinguishing equipment (certified) | Shaanxi Weinan fire boxes provided by the Fire Equipment Co. Jiwei. Shaanxi Jiwei Fire Equipment Co. (www.jiweixiaofang.com) (www.jiweixiaofang.com) is Xi'an, other leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Jiwei leader in fire-fighting equipment in Shaanxi with the staff warmly welcome all inquiries negotiations to create fire-fighting equipment Shaanxi Jiwei better future.