• Shenzhen Wofly Technology Co., Ltd.
    Dariof Fassini
    All perfect. Quality is 4.5 on 5 but quality to price ratio is excellent.
  • Shenzhen Wofly Technology Co., Ltd.
    Jasper Mokkink
    I 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.
Contact Person : Catlin Zeng
Phone Number : 0086-13430639757
WhatsApp : +8613430639757

Panel Mount Gas Changeover Manifold 3000PSI CE Certification Long Lifespan

Place of Origin China (Mainland)
Brand Name AFK
Certification CE
Model Number WL300
Minimum Order Quantity 1-9 Pieces
Price Negotiable

Contact me for free samples and coupons.

WhatsApp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Material 316L SS Maximum Inlet Pressure 3000, 500psig
Output Pressure 0~25, 0~50, 0~100, 0~250psig Working Temperature -40~+74 Deg C
Applied Gas High Pure Gases, Standard Gases, Corrosive Gases And So On Body Material Ss316, Nickel Plated Brass
Certificate ISO9001:2008 CE Selling Units Single Item
Single Package Size  36X15X26 Cm
High Light

gas control panel


pressure control panel

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Product Description

Technical Parameters

SS316L, brass, nickel plated brass ( Weigh :0.9kg)  
SS316L, brass, nickel plated brass
Valve Seat
Plunger Valve Core      
Maximun Input Pressure    
500,3000 psig        
Outlet pressure range
0~25, 0~50, 0~100, 0~250, 0~500 psig  
Safety Testing Pressure
1.5 times of maximum input pressure
Working Temperature          
-40°F~ +165°F (-40°C~ +74°C )
Leakage Rate
2×10-8 atm cc/sec He
CV Value
Product Description

WL300 Series Semi-automatic Changeover Device


It is suitable for high pressure gas cylinders and pressure relief gas supply on both sides, through the automatic changeover to realize continuous gas supply, with the function of purging.
The maximum input pressure of 20.7 Mpa (3000 psi), corrosion, clean workshop assembly test, suitable for laboratory, high purity gas such as gas analysis.


High pressure pressure regulator with one inlet pressure gauge.  

Body ports: 1/4NPT F
Body ports: 3 ports  
Type: can't be adjustable 
Body material: nickled plated brass and ss316L are available.
Panel Mount Gas Changeover Manifold 3000PSI CE Certification Long Lifespan 0
High pressure regulator with one inlet pressure gauge.
Body ports: 1/4" NPT F 
Body ports: 3ports 
Type: can be adjustable
Body material: Nickled plated brass and ss316L are available.
Panel Mount Gas Changeover Manifold 3000PSI CE Certification Long Lifespan 1
WL3 1 1 1 S H 1 1 -N2
Series Function Options Outlet Connection Inlet Connection Body Material





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

Please provide the following parameters in your inquiry as many as possible:
1. Inlet actual working pressure
2. Outlet actual working pressure
3. Inlet conenction and size
4. Outlet conenction and size
5. Material: brass, nickel plated brass, stainless steel
6. If you have special flow rate requirements and a panel, please indicate it.
7. Quantity
Notes: The ranges of pressure gauges, inlet connector, outlet connector can be equiped according your requirements. Please write the above descriptions as possible as you can. If you can not confirmed it at the moment, just send us inquiry, we also can recommend our regular model for you.



Panel Mount Gas Changeover Manifold 3000PSI CE Certification Long Lifespan 2
Panel Mount Gas Changeover Manifold 3000PSI CE Certification Long Lifespan 3



Q1. What products can you provide?

Re: High pressure regulator, cylinder gas regulator, ball valve, needle valve, compression fittings(connections).


Q2. Can you make the products based on our requests, such as connection, thread, pressure and so on?

Re: Yes, We have experienced techincal team and can design and produce the products according to your requirements. Take a pressure regualtor for example, we can set the range of pressure gauge according actual working pressure, if the regulator is connected to a gas cylinder, we can add an adaptor such as CGA320 or CGA580 to connect the regulator with the cylinder valve.


Q3. What about the quality and price?

Re: Quality is very good. Price is not low but pretty reasonable at this quality level.


Q4. Can you provide samples to test? For free?

Re: Of course, you can take several to test firstly. Your side shall bear the cost due to its high value.


Q5. Can you operate OEM orders?

Re: Yes, OEM is supported though we also have our own brand named AFK.


Q6. What payment methods for chose?

Re: For small order, 100% Paypal, Western Union and T/T in advance. For bulk purchase, 30%T/T, Western Union, L/C as deposit, and 70% balance paid before shipment.


Q7. How about the lead time?

Re: Usually, delivery time is 5-7 working days for sample, 10-15 working days for mass production.


Q8. How will you ship the goods?

Re: For small amount, international express is used mostly such as DHL, FedEx, UPS, TNT. For large amount, by air or by sea. Besides, you also can have your own forwarder pick up the goods and arrange the shipment.