What is the difference between a flange balance valve and a flange gate valve
date:2024-04-08 08:47
What is the difference between a flange balance valve and a flange gate valve? A flange gate valve is a gate valve with a flange connection method, which is more common. The flange gate valve is stable and reliable when used in pipelines, so it is often used in high-pressure pipelines. The flange balance valve has good flow characteristics, which can reasonably allocate flow and achieve flow quantification. Due to the valve's opening indication, opening locking device, and pressure measuring small valve used for flow measurement, as long as appropriate specifications of balance valves are installed in each branch and user inlet, and specialized intelligent instruments are used for one-time debugging and locking, the total flow of the system can be controlled within a reasonable range, thus overcoming the phenomenon of "unstable flow size". Gate valves can only be fully open and fully closed, and cannot be adjusted or throttled.
What is the difference between a flange balance valve and a flange gate valve
Standard for flange gate valves:
National standard flange refers to the flange produced in accordance with the provisions of the GB standard GB/T 9112-9124-2010 Steel Pipe Flange of the People's Republic of China.
The national standard flange standard was jointly issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the China GB Standardization Administration on January 10, 2011, and is a recommended standard implemented from October 1, 2011.
GB/T 9112~9124-2010 includes a total of 13 standards:
Replacing the national standard GB/T9112-2000; GB/T10745-1989 standard
GB/T 9112-2010 Types and parameters of steel pipe flanges
GB/T 9113-2010 Integral steel pipe flanges
GB/T 9114-2010 Steel pipe flanges with neck thread
GB/T 9115-2010 Butt welded steel pipe flanges
GB/T 9116-2010 Steel pipe flanges with neck flat welding
GB/T 9117-2010 Steel pipe flanges with neck socket welding
GB/T 9118-2010 Butt welding ring with neck loose sleeve steel pipe flanges
GB/T 9119-2010 Plate type flat welded steel pipe flanges
GB/T 9120-2010 Loose sleeve steel pipe flanges with welded ring plate
GB/T 9121-2010 Flat welded ring plate loose sleeve steel pipe flanges
GB/T 9122-2010 Flanging ring plate loose sleeve steel pipe flanges
GB/T 9123-2010 Steel Pipe Flange Covers
GB/T 9124-2010 Steel pipe flanges
