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304 Stainless Steel Normally Closed Solenoid Valve

This 304 stainless steel solenoid valve features a normally closed, pilot-operated design suitable for water, gas, and oil media. It ensures reliable sealing, strong corrosion resistance, and stable performance for a wide range of industrial fluid control applications.

Size:
Material:
Availability:
Quantity:
  • SLP

  • HONGJU

Nominal Diameter

Inch Diameter

Material

Length

(mm)

Height

(mm)

Pressure Resistance

Weight

(KG)

DN15

G1/2”

304

68

102

0.05-1.6MPa

0.75

DN20

G3/4”

304

75

112

0.05-1.6MPa

1

DN25

G1”

304

96

120

0.05-1.6MPa

1.3

DN32

G1-1/4”

304

118

133

0.05-1.6MPa

1.8

DN40

G1-1/2”

304

120

138

0.05-1.6MPa

1.9

DN50

G2”

304

150

155

0.05-1.6MPa

2.6


Q1:About the Coil:
A:The solenoid valve is designed for short-term use. The coil will generate heat when energized. For standard models, continuous energization should be within 60 minutes.
For long-term operation, it is recommended to use the solenoid valve with an energy-saving module, allowing 24+ hours of continuous operation without overheating.
 
Q2:Working Principle:
A:Normally Closed (NC): Opens when energized, closes when power is off.
Normally Open (NO): Closes when energized, opens when power is off.(Requires at least 0.5 KG of pressure in the pipeline to open; will not open without sufficient pressure!)
 
Q3:Precautions:
A:When using with devices such as temperature controllers or level sensors, upper and lower limits must be set to allow the solenoid valve rest intervals.
Setting only one limit (upper or lower) will cause frequent valve operation, leading to coil burnout.
 
Q4:Installation:
A:There is an arrow on the valve body or base indicating the flow direction. Do not install it in reverse.
(This product is not suitable for media with large particles or impurities.)
If the medium is dirty, a filter must be installed.
There should be no pressure at the valve outlet. If pressure exists, a check valve must be installed.

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Zhejiang Hongju Automatic Control Valve Co., Ltd. is a valve manufacturing enterprise integrating R&D, design, production, sales, and after-sales service, with rich manufacturing experience.

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