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Semi - Automatic Changeover Manifold With 1/4" NPT Thread For Laboratory

Place of Origin Guangdong, China (Mainland)
Brand Name AFK
Certification CE
Model Number WL300
Minimum Order Quantity >=1 Sets
Price Negotiable
Packaging Details Export packing
Supply Ability 10000 Set/Sets per Week

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Product Details
Max Inlet Pressure 2200, 3000 Psig Outlet Pressure Range 0~25, 0~50, 0~100, 0~150 , 0~250psig
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"
High Light

gas control panel


automatic switchover manifold

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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 20.7Mpa (3000psi), corrosion, clean workshop assembly test, suitable for laboratory, high purity gas such as gas analysis.

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
Body material
Stainless steel 316L
Valve Seat
Stainless steel 316L
Inlet connection
1/4" NPT (F)
Outlet connection
1/4" NPT (F)
Detailed Images
Semi - Automatic Changeover Manifold With 1/4" NPT Thread For Laboratory 0
Semi - Automatic Changeover Manifold With 1/4" NPT Thread For Laboratory 1

High pressure outlet pressure flow curve

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
Product Show
Semi - Automatic Changeover Manifold With 1/4" NPT Thread For Laboratory 2
Semi - Automatic Changeover Manifold With 1/4" NPT Thread For Laboratory 3
Decided on the product
Packaging Details
Export packing or according customer's request.




Q1. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than

Q2. Do you have any MOQ limit ?
A: Low MOQ 1 pic.

Q3. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 5-7 days. Airline and sea shipping also optional.

Q4. How to proceed an order ?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.