
We have different type of valve,to meet the rule of CGA,QF,EN-ISO.

Gas cylinder valves are found in virtually every industrial process, including water & sewage processing, mining, power generation, processing of oil, gas & petroleum, food manufacturing, chemical & plastic manufacturing and many other fields.
Valve Specifications
Type | WP(MPa) | DN(mm) | Medium | Outlet thread | Inlet thread | Safety device | Frame madality |
CGA180 | 15 | Φ3 | CO2 | 0.625-18UNF-RH-EXT | 0.75-16UNF | 22.5MPa | Diaphragm |
CGA200 | 3 | Φ3 | C2H2 | 0.625-20NGO-RH-EXT | 3/8-18NGT | 100±5ºC | Pin type |
CGA200-1 | 3 | Φ3 | C2H2 | 0.625-20NGO-RH-EXT | 3/8-18NGT | 100±5ºC | Pin type |
CGA300-1 | 3 | Φ4 | C2H2 | 0.825-14NGO-RH-EXT | 3/4-14NGT | NO | Flap type |
CGA300-1A | 3 | Φ4 | C2H2 | 0.825-14NGO-RH-EXT | 3/4-14NGT | 100±5ºC | Flap type |
CGA300-2 | 3 | Φ4 | C2H2 | 0.825-14NGO-RH-EXT | PZ27.8 | NO | Flap type |
CGA300-2A | 3 | Φ4 | C2H2 | 0.825-14NGO-RH-EXT | PZ27.8 | 100±5ºC | Flap type |
CGA300-3 | 3 | Φ4 | C2H2 | 0.825-14NGO-RH-EXT | 1-111/2NGT | NO | Flap type |
CGA320-2 | 15 | Φ3 | CO2 | 0.825-14NGO-RH-EXT | 1-111/2NGT | 22.5MPa | Flap type |
CGA320-3 | 15 | Φ3 | CO2 | 0.825-14NGO-RH-EXT | 3/4-14NGT | 22.5MPa | Flap type |
CGA320-4 | 15 | Φ3 | CO2 | 0.825-14NGO-RH-EXT | PZ27.8 | NO | Flap type |
CGA320-5 | 1800psi | Φ3 | CO2 | 0.825-14NGO-RH-EXT | 1.125-12UNF | 3000psi | Flap type |
CGA320-8 | 1800psi | Φ3 | CO2 | 0.825-14NGO-RH-EXT | 3/4-14NGT | 3000pai | Flap type |
CGA326-3 | 15 | Φ3 | N2O | 0.825-14NGO-RH-EXT | 3/4-16UNF | 22.5MPa | Flap type |
CGA326-5 | 1800psi | Φ3 | N2O | 0.825-14NGO-RH-EXT | 1.125-12UNF | 3000psi | Flap type |
CGA330-1 | 15 | Φ4 | NF4 | 0.825-14NGO-LH-EXT | 3/4-14NGT | NO | Diaphragm |
CGA330-2 | 15 | Φ4 | NF4 | 0.825-14NGO-LH-EXT | PZ27.8 | NO | Diaphragm |
CGA346-1 | 3 | Φ3 | Air | 0.825-14NGO-RH-EXT | PZ27.8 | 22.5MPa | Flap type |
CGA346-2 | 3 | Φ3 | Air | 0.825-14NGO-RH-EXT | 1-111/2NGT | 22.5MPa | Flap type |
CGA346-3 | 3 | Φ3 | Air | 0.825-14NGO-RH-EXT | 3/4-14NGT | 22.5MPa | Flap type |
CGA346-4 | 15 | Φ3 | Air | 0.825-14NGO-RH-EXT | 1.125-12UNF | 22.5MPa | Flap type |
CGA346-5 | 15 | Φ3 | Air | 0.825-14NGO-RH-EXT | 0.75-16UNF | 22.5MPa | Flap type |
CGA350-1 | 15 | Φ4 | High puritygas | 0.825-14NGO-LH-EXT | PZ27.8 | NO | Diaphragm |
CGA350-2 | 15 | Φ4 | High puritygas | 0.825-14NGO-LH-EXT | PZ19.2 | NO | Diaphragm |
CGA510-1 | 3.3 | Φ3 | C2H2 | 0.885-14NGO-LH-INT | 3/4-14NGT | NO | Flap type |
CGA510-2 | 3.3 | Φ3 | C2H2 | 0.885-14NGO-LH-INT | 1/2-14NGT | NO | Flap type |
CGA510-3 | 3.3 | Φ3 | C2H2 | 0.885-14NGO-LH-INT | 1-111/2NGT | NO | Flap type |
CGA510-5 | 3.3 | Φ3 | C2H2 | 0.885-14NGO-LH-INT | PZ27.8 | NO | Flap type |
CGA520 | 3 | Φ3 | C2H2 | 0.895-18NGO-RH-EXT | 3/8-18NGT | 100±5ºC | Pin type |
CGA540-1 | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | 3/4-14NGT | 22.5MPa | Flap type |
CGA540-2 | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | PZ27.8 | 22.5MPa | Flap type |
CGA540-3 | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1.125-12UNF | 22.5MPa | Flap type |
CGA540-3A | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | 3/4-16UNF | 22.5MPa | Flap type |
CGA540-6 | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1/2-14NGT | 22.5MPa | Flap type |
CGA540-7 | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | BS341 1" | 22.5MPa | Flap type |
CGA540-8 | 2015psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1-111/2NGT | 3360psi | Flap type |
CGA540-8A | 1800psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1-111/2NGT | 3000psi | Flap type |
CGA540-8B | 15 | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1-111/2NGT | 22.5MPa | Flap type |
CGA540-9 | 1800psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1/2-14NGT | 3000psi | Flap type |
CGA540-10 | 2400psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 3/4-14NGT | 4000psi | Flap type |
CGA540-12 | 2015psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 3/4-14NGT | 3360psi | Flap type |
CGA540-13 | 2265psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 3/4-14NGT | 3775psi | Flap type |
CGA540-14 | 2015psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1.125-12UNF | 3360psi | Flap type |
CGA540-14A | 1800psi | Φ3 | O2 | 0.903-14NGO-RH-EXT | 1.125-12UNF | 3000psi | Flap type |
CGA580-1 | 1800psi | Φ3 | Inert gases | 0.965-14NGO-RH-INT | 1-111/2NGT | 3000psi | Flap typ |
TYPE | CGA,QF-2 | DN(mm) | 3.4 .7 |
INLET THREAD | As below | WP(Mpa | 15.20 |
OUTLET THREAD | G5/8.CGA.BS341.DIN477.JISB | MEDIUM AVAILABLE | O2 N2 Ar H2 He N2,etc |

1.MSDS & COA are available once request;
2.Payment Term: T/T;
3.MOQ: one 20' container;
4.Delivery Time: within 10 days after 30% TT deposit, balance before delivery.

No. However, we are sole distributor for our manufacturer. So there is no doubt that we can offer our customers the best prices.
Q2. What is your MOQ?
We can quote based on our customers' quantity. However, DG cargo should be exported in one container, so we suggest that the quantity should be one container or more. Price will be less if the quantity is more.
Q3. How about your lead time of production?
Normally, it is 25-30 days after PO and deposit by T/T
Q4. Can we get the COA and MSDS of the gases we need?
Q5. Can we send the gas cylinders back and let you refill if they are reusable?
Yes. But you need to inform us in advance, because we need to handle the import customs clearance before exporting.
----------Company Certificate--------------------------------

nitrous oxide, sulfur dioxide , sulfur hexafluoride, Helium, Ethylene Oxide,
Argon gas ;Vinyl chloride; methane, carbon dioxide, Hydrogen, Ammonia, oxygen,etc.


If you have any requirements, you can contact us at any time.
Qingdao Guida Special Gas Co.,Ltd
Add: Room308 T2 XinlianTianDi, Jufeng Road 176,
Licang District, Qingdao, China P.C.:266100
Contact: Iris Yu