Home / Products / ZCRB Emergency Gas Shut-Off Valve / Aluminum Alloy Flange Connection Gas Shut-off Valve Normally Open

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Aluminum Alloy Flange Connection Gas Shut-off Valve Normally Open

This aluminum alloy flange gas shut-off valve features a normally open design and operates at 220V. It provides reliable flow control for gas systems, ensuring safety and durability in industrial and commercial applications with excellent corrosion resistance and stable performance.

Size:
Material:
Availability:
Quantity:
  • ZCRB

  • HONGJU


Nominal Diameter
Inch Diameter
Material
Length

(mm)
Height

(mm)
Flange outer Diameter
Flang Thickness
DN25
G1”
Aluminum Alloy
160
280
115
25
DN32
G1-1/4”
Aluminum Alloy
165
300
140
25
DN40
G1-1/2”
Aluminum Alloy
180
310
150
30
DN50
G2”
Aluminum Alloy
200
320
165
30
DN65
G2-1/2”
Aluminum Alloy
220
340
185
30
DN80
G3”
Aluminum Alloy
250
360
200
30
DN100
G4”
Aluminum Alloy
280
380
220
30
DN150
G6"
Aluminum Alloy
480
480
285
40
DN200
G8"
Aluminum Alloy
520
550
340
45


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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