Multistage Minimum Flow Control Valve made in china

Multistage Minimum Flow Control Valve made in china 

INTRODUCTION 

ZHD multistage minimum flow control valve cage control valve used multilevel cage symmetric sleeve control valve. It complete control medium velocitywithin valve, and greatly reduced noise made by high pressure gas or steam within valve, stabile multistage pressure reducing effective prevent liquid cavitation, so it’s the stable control valve used in high-pressure medium performance,customers can also select multi-spring diaphragm mechanism or pneumatic actuators, etc. 

TEHNICAL PARAMETERS AND TECHNICAL PERFORMANCE 

• Body type: Direct casting ball-type valve
• Nominal diameter:DN20, 25, 32, 40, 50, 65, 80, 100, 200
• Nominal pressure:PN 1.6, 2.5, 4.0, 6.4, 10.0, 16,25Mpa CLASS 150, 300, 600, 900,1500Lb
• Connection flange: FF, RF, RTJ, etc, welding: SW, BW
• Flange distance: according to IEC534
• Bonnet type: stdanrd type, lengthened (heat dissipation, low temperature, bellows sealing).
• Packing: V type PTFE, flexible graphite, etc.
• Sealing gasket: Metal with graphite gaskets
• Actuator: Pneumatic, multi-spring actuator.
• Electric: 3810L series, PSL series.
• Valve disc type: multistage cage sleeve type.
• Flow characteristics: equal percentage, linear.
• Disc material: standard material composition and applicable temperature, pressure range, please refer to appendix. 

CUSTOMERIZED SELECTION 

MODEL SELECTION

BODY IS CAST STEEL 

APPENDIX3: BODY MATERIAL IS STAINLESS STEEL 

NOTE 

• The above is standard configuration structure, valve seat is metal to metal, and we can still provide strengthed trim with stellite alloy coating. For specific applicable temperature, we have more reasonable bolts, nuts for choose.
• PTFE v-shaped ring stem packing is standard configuration and can also choose flexible graphite.
• Standard body material is carbon steel and stainless steel, and we can still provide various high corrosive-resistance alloy materials. 

CONTROL VALVE STRUCTURAL SIZE