Extension Stem Ball Valve
When will you use extension stem ball valve:
The elongated stem ball valve increases the position between the horizontal hole surface of the valve and the handle, so as to meet the requirements of different use conditions. The extension rod ball valve generally adopts flange connection, but also can adopt butt welding connection. The valve stem of the ball valve is lengthened. For example, the general ball valve position is far from the operating position, and the connecting rod can be processed, which is equivalent to the valve stem. However, not all valves have to extend the stem. If you want to improve the original ball valve parts (valve stem), you must know the working conditions of the ball valve to lengthen it. The stem of the ball valve after lengthening should be prevented from bending. The height of ball valve is generally selected according to the actual needs of customers, which can meet the requirements of different operating heights, and can increase the protection position of the valve, which improves the performance of the ball valve.
Extended stem ball valve standard:
Design & Manafacfure according to：API 6D、API 608、BS 5351、GB/T 12237
Face to face：ASME B 16.10、GB/T 12221
Flange collection standard：ASME B 16.5、GB/T 9112～9124、HG/T 20592、HG/T 20615、JB/T 74～90、JIS B2238
Inspection and test standard：API 598、GB/T 13927、GB/T 26480、JB/T9092、ISO 5208
Quick details of lengthened stem ball valve:
|Nominal size range：NPS½-NPS10、DN15～DN250|
|Main material：Carbon steel, stainless steel, alloy steel, duplex steel|
|Operation way：Manual, gear drive, electric, pneumatic|
|Apply to：Petroleum, chemical industry, natural gas, petrochemical, coal chemical industry and so on|
Muti delivery for extension rod ball valve
Our customer: long-term relationship with lots of large or state-owned enterprises such as Huadian, Guodian, Zijin and other enterprise groups.
Attn: Lizy Liu