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Dongguan Covna Automation Industry Co., Ltd.

Solenoid Valve, Control Valve, Gas Valve manufacturer / supplier in China, offering Solenoid Valve with Low Unit Price, Covna Flange Connection 3 Inch Solenoid Valve, Drinking Water Solenoid valve for RO System and so on.

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Solenoid Valve with Low Unit Price

Purchase Qty.:
1-9 10+
FOB Unit Price: US $22 US $21
Purchase Qty. (Pieces) FOB Unit Price
1-9 US $22
10+ US $21
Get Latest Price
Production Capacity: 10000 Pieces for Every Month
Transport Package: in Wooden Case with Polyfoam Inside
Payment Terms: T/T, Western Union

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Basic Info
  • Model NO.: 2W31
  • Connection Form: Thread
  • Material: Brass
  • Valve Structure: Pilot Piston Structure
  • Usage: Drain
  • Application: Industrial Usage, Water Industrial Usage, Household Usage
  • Seal: NBR, EPDM or Viton
  • Port Size: 1/2",3/4",1",1 1/4",1 1/2",2"
  • Production Leadtime: 7~15 Days After Payment Finished
  • Trademark: COVNA
  • Origin: Guangdong
  • Actuator: Electric
  • Type: Pilot Operated
  • Pressure: Ordinary Pressure
  • Power Supply: AC or DC
  • Standard: DIN
  • Working Temperature: -10~180
  • Certificate: CE,RoHS,TUV,ISO
  • Keyword: Gas Solenoid Valve,Natural Gas
  • Warranty Period: One Year
  • Specification: 1/2 inch to 2 inch
  • HS Code: 848180409
Product Description


This series valve is famous for sensitive reaction and high pressure,
Usually be used to circuit control board connection, it is good for energy saving,
Widely used to IC card gas combustion meter, water saving irrigation, water meter
and various automatic flushing of sanitary ware.
The core of the valve can be pulled and stretched to be the good shape, with 

good strictness, credibility, sensitive reaction and long life.

Using Conduction                                                     
Fluid Medium: Water, Gas (but not corrosive)                      
Fluids Temperature: ≤60ºC, please use at the area,
Which relative temperature can't over than 85%
How to use
To exchange the poles of the battery for on-off

Standard technical parameters 
Interface size: 3/8-2''
Flow diameter: 13-50mm
Body material: Wrought brass
Connection type: G thread
Pressure class: 0.5-10bar
Structure type: Pilot type
Control type: Normally closed
Seal material: NBR
Medium temperature: 0ºC-60ºC
Ambient temperature: 0ºC-70ºC
Install way: According to the body tag to install, in order to enhance 

the valve service life, better coil upward, horizontal installation;
Coil voltage: DC24V/12V, other voltage can be customized 

Pipe SizeFlow Diameter
Working Pressure 
The Max.
Outline dimension
Length × Width × Height

 Solenoid valve application and selection 

1.     Valve types:     2/2way     2/3way (3 way valve please note the pressure inlet port working type)
2.     Operation type:   Normally closed  (Power off closed, power on open)   
Normally open    (Power off open, power on close)   
3.     Coil optional:   Normal temp. (F class)          High temp.(H class)         Explosion proof (X) 
The standard junction box configuration         Lead type configuration 
4.     Voltage:      AC       V    50/60HZ                  DC        V
Voltage values (V) ______   Power requirement _______    without power requirement ________
5.     Medium: Air      Water    Hot water     Steam       coil gas    Light oil 
6.     Medium temperature:  _______ºC
7.     Body material:  Wrought brass    Casting copper   SS304   SS316   Others 
8.     Pressure: The mini. Inlet pressure______ kfg/cm2       The max. inlet pressure _______ kfg/cm2
After the valve and before the valve pressure difference _______ kfg/cm2 
Whether there is the differential pressure in the system
9.     Connection size:  Inner thread G ______   ANSI thread NPT ______   Flanged ________
10.   Flow size _________ mm           Or needed to flow under the rated pressure differential
11.   Service environment:   Ambient temp.: _____  ºC    Indoor____  Outdoor_____  Underwater_____ Others _______
12.   Other optional:     Such as with manual, etc _______________________________________________________________
13.   Special requirements: ____________________________________________  
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