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Dariof FassiniAll perfect. Quality is 4.5 on 5 but quality to price ratio is excellent.
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Jasper MokkinkI have had an great experience ordering from Wolfy! The communication was always quick and clear. Adding parts to your order after you made your payment is also accepted by Wolfy. They are also willing to hold your order for a little bit if you need time to decide what additional parts you would like to add. I ordered compression fittings.
Stainless steel 316L Manual change-over switching stations for alternate cylinder operation gas pressure regulator

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xMax Inlet Pressure | 2200, 3000 Psig | Outlet Pressure Range | 0~25, 0~50, 0~100, 0~150 , 0~250psig |
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Working Temperature | -40° F ~+165° F(-40°C+74°C) | Cv | 0.14 |
Valve Seat | PU, PTFE ,FCTFE | Body Material | 316L |
Diaphragms | 316L | Pressure Gauge Size | 2" |
Port | SHENZHEN | ||
High Light | gas control panel,pressure control panel |
WL300 Series Semi-automatic Changeover Device
Product Specifications
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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High pressure outlet pressure flow curve
Low pressure outlet pressure flow curve
ORDERING INFORMATION | ||||||||
WL3 | 1 | 1 | 1 | S | H | 1 | 1 | -N2 |
Series | Function Options | Outlet Connection | Inlet Connection | Body Material |
Input Pressure |
Outlet Pressure |
Gauge | Gas Option |
WL300 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 |
FAQ
Q. Are you manufacturer?
A. Yes, we are manufacturer.
Q.What is lead time?
A.3-5days. 7-10 days for 100pcs
Q. How do I order?
A.You can order it from Alibaba directly or send us a inquiry. We will reply you within 24 hours
Q. Do you have any certificates?
A. We have CE certificate.
Q. What materials do you have?
A. aluminium alloy and chrome plated brass are available. The picture shown is chrome plated brass. If you need other material, pls contact us.
Q. What is maximum inlet pressure?
A.3000psi (about 206bar)
Q. How do I confirm inlet connnection for cylidner?
A. Pls check cylinder type and confirm it. Normally, it is CGA5/8 male for Chinese cylinder. Other cylidner adapter are also
available e.g CGA540, CGA870 etc.
Q. How many types for connecting cylinder?
A. Down way and side way. (you can choose it)
Q. What is product warranty?
A: The free warranty is one year from the day of Commissioning qualified.If there is any fault for our products within the free warranty period, we will repair it and change the fault assembly for free.