Advantages and purpose
Can exactly control flow, The change of flow of upper reaches doesn′t affect the enactment of the flow of lower reaches.
For the flow control pipeline of water supply and drainage， in mining industry and domestic water.
Standard and regulation
Flange connection dimension: GB/T 17241.6-1998, GB/T 9113.1-2000
Nominal pressure: PN0.6MPa, PN1.0MPa, PN1.6MPa, PN2.5MPa
Nominal diameter: Diaphragm type DN20～450mm, Piston type DN500～900mm
Suitable medium: Water
Suitable temperature: ≤80℃
Inspection and test: GB/T 13927, API598
Body material: Cast iron, Ductile cast iron, Carbon Steel, Stainless steel

Component list：1、Ball valve 2、Pilot valve 3、Flow control valve 4、Main valve
5、Pressure gage 6、Needle valve

Main connection dimensions