QF-2G Series Gas Cylinder Valve for O2/N2/Air
Main Features
l O-ring seal technology provides superior anti-leaking performance
l Smooth operation and long service life
l 100% leak test at 1.2 times of working pressure
l Hot forged valve body with excellent mechanical character
l Made of completely new & high quality brass
l 100% Pickled & Degreased, to ensure safety at Oxygen circumstance
l Accurate safety device reduce accident risk
l Improved and solid inside structure
l Fire resistance aluminum alloy hand wheel, color is optional
Technical Parameters
Operating Mechanism: | Shaft Coupling Type | Cycle Life: | 4000 Min |
Max. Operating Torque: | 6 Nm | Max Working Pressure: | 30 MPa |
Max. Over Torque: | 40Nm | Test Working Pressure: | 20 MPa |
Min. Loose Torque: | 50Nm | Max. Pressure Resistance: | 83 MPa |
Temperature Operating: | Min. -50℉ Max. 145 ℉ | Vibration Resistance: | 2mm (P-P) 33.3Hz |
Material List
Hand Wheel: | Aluminum Alloy | Valve Body: | Hot Forged Brass HPb59-1 |
Bonnet: | Brass Alloy HPb59-1 | Spindle: | Brass Alloy HPb59-1 |
Valve Core: | Brass Alloy HPb59-1 | Seal Seat: | PTFE |
O-Rings: | Fluoro Rubber |
Model No. | DN | Inlet Connection | Outlet Connection | Nominal W. P. | Safety Device |
QF-2G | 4mm | GB8335 PZ27.8 | G5/8 Female | 15MPa | Burst Disc 21±1.5MPa |
QF-2G1 | 4mm | BS341 No.1 | G5/8 Female | 15MPa | Burst Disc 21±1.5MPa |
QF-2G2 | 4mm | GB8335 PZ27.8 | G5/8 Female | 20MPa | Burst Disc 21±1.5MPa |
Specification
Pattern: | Two-port two-position | |||
Principium: | direct acting type | |||
Control mode: | normally close | |||
Valve body: | brass | |||
Diaphragm material: | NBR: ≤80°C ,FKM≤150°C | |||
Working pressure: | 0~10bar | |||
Max pressure: | 10bar | |||
Voltage: | AC220V AC110V DC12V DC24V | |||
Medium: | Air ,water ,Liquid ,oil ect. | |||
Application: | Gas protection welder, various types of burners, test equipment small-flow air water control system |
Model | Pipe | Orifice Diameter(mm) | Principium | CV | Body material | Seal | Work Pressure |
MI-03 | 1/8" 1/4" | 3 | direct acting | 0.3 | Brass , SS304 | NBR,FKM | 0-13bar |
MI-04 | 3/8" | 4 | 0.58 | NBR,FKM | 0-7bar | ||
MI-05 | 1/2" | 5 | 0.65 | NBR,FKM | 0-5bar | ||
MI-08 | 1/2" | 8 | 1.2 | NBR,FKM | 0-1bar |
Dimensions
(mm)
Orifice(mm) | A | B | C |
DN3 | 44 | 25 | 80 |
DN4 | 44 | 25 | 80 |
DN5 | 50 | 25 | 80 |
DN8 | 50 | 25 | 80 |
Materials of construction | |||
Parts in contact with the medium | |||
Valve of body | Brass | SS304 | |
Seals | NBR ,EPDM ,FKM | ||
Magnetic isolation pipe | SS304 | ||
Core | Stainless steel alloy | ||
Spring | SS304 | ||
The shading | Copper |
Picture
small brass and plastic non return valves solenoid gas valve
- Inner packing: opp bag, then carton box for each product
- Outer packing: export standard carton, Foam outside protecting the goods against damage
- Usually we ship your order by sea or by air...
- We do our best to ship your order within 1 week after receiving your payment
- We'll tell you the tracking number once your order has been sent
- We accept T/T Bank transfer, L/C, Western Union, Moneygram, Paypal
- We have more than 12 years experience in solenoid valves
- Excellent quality control is one of our main principles
- Various style for each products and completely series pneumatic products for you to choose from
- Sample order & small quantity order is ok
- We provide OEM service, accept customer label, develop the product with your drawings or samples
- Any question, will be replyed within 24 hours
Founded in July,2014, Ningbo Fenghua GO GO Automatic company is a high-tech enterprise with all vitality, potential and comprehensive strength. The company is located in the Zhejiang Ningbo Science &Technology zone, a unique place with beautiful scenery and gifts of nature.
Main products of our company : automatic parts, pneumatic solenoid valve, air water solenoid valve, hydraulic valves, gear piston or vane pumps, fittings connectors, temperature pressure transmitter, temperature controller, PLC, DCS parts, hardware stainless steel or brass or plastic parts , etc.
Since its foundation, the company keeps living up to the belief of :"honest selling, best quality, people-orientation and benefits to customers. " We are doing everything to offer our customers with best services and best products. We promise that we'll be responsible all the way to the end once our services begin.
Q: What is your main market?
A: Our main market is north America, especially USA.
Q: Are you products standard?
A: Our model is standard, if you have specific demand, pls tell us.
Q: Do you have interest to do our own design items?
A: Absolutely! We have big interest.
Q: How to make the order?
A: You can send us email or inquiry at alibaba directly. for samples order, you can go to our aliexpress shop and place the order.
solenoid gas valve
Skype:atcgogo