Nominal coherent way(mm):DN20-450
Pressure grade:PN10,PN16,PN25
Diaphragm type:DN20-450
Piston:DN350-750
Function and use:Regulate and control main export pressure of valve,main valve export pressure change becanse the pressure of imports and exports is changed,do not also change because the main valve exports the change of the flow,does not also change the pressure of its export because the main valve  exports the change of the flow.Can be used in life supolying water,systematic pressure grade that fire-fighting system.

Nominal coherent way(mm):DN20-450
Pressure grade:PN10,PN16,PN25
Diaphragm type:DN20-450
Piston:DN350-750
Function and use:Can regulation and control open and close the non-return valve of pace,when the water pump starts or stops running,can cooperate and regulate it to opening bestly live or and close the pace.Can be used in the skyscraper,reduce water hammer phenomenon,in order to reach the safe and quiet result of opening and closing.

Nominal coherent way(mm):DN20-450
Pressure grade:PN10.PN16,PN25
Diaphragm type:DN20-450
Piston:DN350-750
Function and use:Main valve install in mix water pipeline need,control pipeline of flow,keep,book.The flow does not change,limit the too big flow in a piece of reservation valve,it is low-voltage to reduce the top to the low reaches under high pressure,Even the pressure of the upper reaches of the main valve changes,will not influence the flow of the low reaches of main valve either.

Nominal coherent way(mm):DN20-450
Pressure grade:PN10,PN16,PN25
Diaphrage type:dn20-450      Piston:DN350-750
Function and use:When the pressure exceeds and lets out and presses the specified pressure of the valve in the feed pipe,discharge the valve to open,prevent the pipeline and apparatus from being damaged because of exceeding pressing can be used in the fire control of the skyscraper and test the letting out and pressing of circulatory system,cause the system to be dangerous in order to prevent water pressure from being too high.
 

Nominal coherent way(mm):DN20-450
Pressure grade:PN10,PN16,PN25
Diaphragm type:DN20-450
Piston:DN350-750
Function and use:This valve is used for installing in the pipeline,the valve that the homework opened and closed remotely,can replace the large-scale electronic device that is used for opening and closing the floodgate valve or butterfly's valve,small,light and maintaining simply,easy to use safly and reliably.

Nominal coherent way(mm) :DN20-450
Pressure grade:PN10,PN16,PN25
Diaphragm type:ND50-400
Piston:DN350-750
Function and use:This valve is for the use by the fire demand water and parallel water-supply system of domestic water of biotope.At fire demand water,valve automatic emergency cut-off,cut off domestic water guarantee the fire demand water.When fire control finishes, valve open auto matically,resume domestic water water supply can save cost alone than traditional fire control.