Oxygen Valve QF-2G(1),brass cylinder valves for O2 Gas Cylinders.*Referenced Main specs on well-sold high-quality O2 valve QF-2G1:-Model: QF-2G Valve.-Working pressure: 15Mpa-Medium: O2, N2, Air-Outlet thread: G5/8-14-RH-EXT-Normal diameter: 4mm-Inlet thread: PZ27.8; NO.Type No.Product NameSuitable ......


| NO. | Type No. | Product Name | Suitable medium | PN (Mpa) | DN (mm) | Outlet thread (mm) | Jiont thread to cylinder (mm) | Temp/pressure of safety device ( Mpa) |
| 1 | QF-2 | Brass oxygen cylinder valve(Flapper type) | O2,N2,Air | 15 | 4 | G5/8 | GB8335 PZ27.8 | 21±1.5 |
| 2 | QF-2(Plate chrome) | Brass oxygen cylinder valve(Plate chrome)(Flapper type) | O2,N3,Air | 15 | 4 | G5/8 | GB8335 PZ27.8 | 21±1.5 |
| 3 | QF-2B | Brass oxygen cylinder valve(Flapper type) | O2,N4,Air | 15 | 4 | G5/8-LH | GB8335 PZ27.8 | 21±1.5 |
| 4 | QF-2B1 | Brass oxygen cylinder valve(Flapper type) | O2,N5,Air | 15 | 4 | W22 x 1/14 | G1/2 | 21±1.5 |
| 5 | QF-2B2 | Brass oxygen cylinder valve(Flapper type) | O2,N6,Air | 15 | 4 | W22 x 1/14-LH | G1/2 | 21±1.5 |
| 6 | QF-2B3 | Brass oxygen cylinder valve(Flapper type) | O2,N7,Air | 15 | 4 | G5/8 | 3/4-14-NGT | 21±1.5 |
| 7 | QF-2B4 | Brass oxygen cylinder valve(Flapper type) | O2,N8,Air | 15 | 4 | CGA300 | GB8335 PZ27.8 | 21±1.5 |
| 8 | QF-2C | Brass oxygen cylinder valve(Flapper type) | O2,N9,Air | 15 | 4 | G5/8 | GB8335 PZ27.8 | |
| 9 | QF-2C2 | Brass oxygen cylinder valve(Flapper type) | O2,N10,Air | 15 | 4 | G1/2 | GB8335 PZ27.8 | |
| 10 | QF-2C3 | Brass oxygen cylinder valve(Flapper type) | O2,N11,Air | 16.5 | 3.5 | G5/8 | GB8335 PZ27.8 | |
| 11 | QF-2C6 | Brass oxygen cylinder valve(Flapper type) | O2,N12,Air | 15 | 4 | G5/8 | G5/8 Union coupling | |
| 12 | QF-2C7 | Brass oxygen cylinder valve(Flapper type) | O2,N13,Air | 15 | 4 | w21.8 x 1/14 | GB8335 PZ27.8 | |
| 13 | QF-2D | Brass oxygen cylinder valve(Needle type) | O2,N14,Air | 15 | 4 | Female thread G5/8 | GB8335 PZ27.8 | |
| 14 | QF-2E | Brass oxygen cylinder valve(Flapper type) | O2,N15,Air | 15 | 3 | W22 x 1/14 | JIS B 8246 V1 Ø20 | 21±1.5 |
| 15 | QF-2E1 | Brass oxygen cylinder valve(Flapper type) | O2,N16,Air | 15 | 3 | G5/8 | GB8335 PZ19.2 | 21±1.5 |
| 16 | QF-2E2 | Brass oxygen cylinder valve(Flapper type) | O2,N17,Air | 15 | 3 | W22 x 1/14 | GB8335 PZ19.2 | 21±1.5 |
| 17 | QF-2F | Brass oxygen cylinder valve(Plate chrome)(Flapper type) | O2,N18,Air | 15 | 4 | G5/8 | GB8335 PZ27.8 | 21±1.5 |
| 18 | QF-2G | Brass oxygen cylinder valve(Shaft coupling) | O2,N19,Air | 15 | 4 | Femal threead G5/8 | GB8335 PZ27.8 | 21±1.5 |
| 19 | QF-2M | Brass oxygen cylinder valve(Flapper type) | O2,N20,Air | 15 | 4 | G1/2 | GB8335 PZ27.8 | 21±1.5 |
| 20 | QF-2P | Brass oxygen cylinder valve(Flapper type) | O2,N21,Air | 15 | 4 | W21.8 x 1/14 | GB8335 PZ27.8 | 21±1.5 |



*NOTES:



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