



Semi Automatic Gas Changeover Manifold System Manual Changeover Manifold Panel Single Stage Automatic Switchover Board
Max Inlet Pressure:
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2200, 3000 Psig
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Outlet Pressure Range:
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0~25, 0~50, 0~100, 0~150 , 0~250psig
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Working Temperature:
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-40° F ~+165° F(-40°C+74°C)
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Cv:
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0.14
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Valve Seat:
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PU, PTFE ,FCTFE
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Body Material:
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316L
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Diaphragms:
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316L
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Pressure Gauge Size:
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2″
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Port:
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SHENZHEN
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Gas changeover systems are vital in industries and settings like laboratories, manufacturing, and medical facilities where a steady gas supply is crucial. These systems ensure that when one gas source, such as a cylinder, runs out, the supply switches to another source without stopping the gas flow. Below is an overview of three types: the Semi Automatic Gas Changeover Manifold System, the Manual Changeover Manifold Panel, and the Single Stage Automatic Switchover Board.
– Semi Automatic Gas Changeover Manifold System: This system automatically switches from a primary gas source to a backup when the primary one is empty. However, it’s only “semi-automatic” because it needs manual action to reset or switch back after replacing the empty source. It’s useful in places where occasional manual checks are fine, and a fully automatic system isn’t worth the cost. For instance, it might be used in labs for gases where short interruptions aren’t a big issue.
– Manual Changeover Manifold Panel: Here, an operator must manually switch between gas sources by turning valves or adjusting controls. It’s a simpler, cheaper option but depends on someone paying attention to avoid running out of gas. This system works well for less critical uses where saving money matters more than avoiding brief pauses in supply.
– Single Stage Automatic Switchover Board: This fully automatic system switches between sources and reduces gas pressure in one step. It’s best for simpler setups where exact pressure control isn’t a priority. It’s affordable and easy to maintain, making it great for basic applications.
When picking a system, think about the gas type, flow rate, pressure needs, and safety features like low-pressure alarms. Choosing the right one ensures a reliable, safe gas supply tailored to your needs.
Product Details
Place of Origin: Guangdong, China (Mainland)
Brand Name: Jewellok
Certification: CE
Model Number: JW-300
Payment & Shipping Terms
Minimum Order Quantity: 1 – 9 Sets
Price: Negotiable
Packaging Details: Export packing
Supply Ability: 5000 Set/Sets per Week
1) Max. Inlet Pressure: 3000, 2200Psi
2) Max. Outlet Pressure: 25, 50, 100, 150, 0~250Psi
3)Working Temperature: -40℃~74℃(-40℉~165℉)
4) Leakage rate: 2 x 10-8 atm.cc/sec He
5)Cv: 0.08
Design Features
1) Pressure regulator for special gas
2) Equipped relief pressure valve
3)Pressure regulator and pipe through the pressure test and leakage test
4)2″ stainless steel pressure gauge, reading clearly
5) The knob of diaphragm valves with on/off logo.
Material List
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Body material
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Stainless steel 316L
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Valve Seat
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PU, PTFE, PCTFE
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Diaphragm
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Stainless steel 316L
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Inlet connection
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1/4″ NPT (F)
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Outlet connection
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1/4″ NPT (F)
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ORDERING INFORMATION | ||||||||
Series | Function Options | Outlet Connection | Inlet Connection | Body Material | Input
Pressure |
Outlet
Pressure |
Gauge | Gas Option |
JW-300 Series Semi-automatic Changeover Device | 1.With emptying, purging distribution function | 1:1/4”NPT(F) | 1:1/4″Weldmg | S:stainless | H:3000psi | 1:25psi | 1:MPa | Blank: None |
2.Wrthout Emptying, purging distribution function | 2:1/4”Tube fitting | 2:1/4”NPT(M) | steel | M:2200psi | 2:50psi | 2:Bar/psi | N2:nitrogen | |
3.Emptying. purging distnbuUon+pressure sensor | 3:3/8”NPT(F) | 3:3/8”Melding | C:nickel plated | L:1000psi | 3:100psi | 3:psi/KPa | O2:oxygen | |
4.With pressure sensor | 4:3/8”Tube fitting | 4:3/8”NPT(M) | brass | O: Other | 4:150psi | 4:Other | H2:hydrogen | |
5:Other | 5:1/2”NPT(F) | 5:1/2”Melding | 5:250psi | C2H2:acetylene | ||||
6:1/2”Tube fitting | 6:1/2”NPT(M) | 6:Other | CH4:methane | |||||
7:Other | 7:1/4”Tube fitting | Ar:argon | ||||||
8:3/8″Tube fitting | He:helium | |||||||
9:1/2″Tube fitting | Air:air | |||||||
10:Other |
Customized manufacturing are supported, so you can contact us for your custom specialty gas delivery system.