Covna Normally Closed Stainless Steel Solenoid Valve

• Customization: Available
• Actuator: Electric
• Connection Form: Thread
• Model NO.: 2w21
• Type: Direct Acting
• Material: Brass
• Pressure: Ordinary Pressure
• Valve Structure: Direct Action Diaphragm Structure
• Power Supply: DC or AC
• Usage: Drain
• Standard: DIN
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Warranty Period: One Year
• Working Temperature: -50~120
• Seal: NBR, EPDM, PTFE or Viton
• Production Leadtime: 7~15 Days After Payment Finished
• Sample Leadtime: 2~3 Days
• Certificate: CE, RoHS, TUV, ISO
• Keyword: Gas Solenoid Valve, Natural Gas
• Port Size: 1/2", 3/4", 1", 1 1/4", 1 1/2", 2"
• Transport Package: in Wooden Case with Polyfoam Inside
• Specification: 1/2 inch to 2 inch
• Trademark: COVNA
• Origin: Guangdong
• HS Code: 84814090
• Production Capacity: 10000 PCS

Product Description

brass normally closed direct acting solenoid valve
2W brass normally closed direct acting solenoid valve 

2w series direct acting solenoid valve, zero pressure starting up, quickly open 

and closed. Normally closed control type, power on valve open, power off valve 

closed. Material has wrought brass and stainless steel, according to the difference
medium, chose the relativity seal material, suitable for different working conditions.

Normally closed direct acting solenoid valve series
Body
Interface size: 1/8-4''
Flow diameter: Normally closed type: 2.5-100mm
Body material: Wrought brass, 304, 316
Connection type: G thread, NPT thread, flanged
Pressure class: 0-10bar
Structure type: Pilot type (the pipeline without pressure directly start-up)
Control type: Normally closed

Solenoid valve components
Seal material: NBR: 0ºC-80ºC
VITON: 0ºC-120ºC
Ambient temperature: NBR: 0ºC-65ºC
Install way: According to the body tag to install, in order to
enhance the valve service life, better to coil upward, horizontal installation;
Coil voltage:AC24V/110V/220V/230V/240V 50/60HZ DC24V/12V ±10% fluctuation allowed
Explosion-proof class: Optional EX m II BT4 
Type specification table

 

1/4"		2.5	0.23	0	7	5	7	5	13	8.5	0.35	2W-2.5
		3	0.3	0	5	4	5	4	13	8.5	0.35	2W-3
		5	0.65	0	6	4	6	4	33	20	0.46	2W-5
		6	0.8	0	4	2.5	4	2.5	33	20	0.46	2W-6
7.5	1.0	0	1.5	1	1.5	1	33	20	0.46	2W-7.5
3/8"	16	4.8	0	10	6	10	6	33	20	0.9	2W-10
1/2"	16	4.8	0	10	6	10	6	33	20	0.9	2W-15
3/4"	20	7.6	0	10	6	10	6	33	20	1.08	2W-20
1"	25	12	0	10	6	10	6	33	20	1.4	2W-25
11/4"	32	24	0	10	6	10	6	70	40	2.5	2W-32
11/2"	40	29	0	10	6	10	6	70	40	2.9	2W-40
2"	50	48	0	10	6	10	6	70	40	5.2	2W-50
Flange 4 holes Connection	25	12	0	10	6	10	6	70	40	2.9	2W-25
	32	24	0	10	6	10	6	70	40	5.1	2W-32
	40	29	0	10	6	10	6	70	40	6.1	2W-40
	50	48	0	10	6	10	6	70	40	8.2	2W-50

External dimension size drawing