Gdq-kf series through pneumatic high vacuum flapper valve uses compressed air as power, changes the direction of air path through electromagnetic reversing valve, pushes the cylinder piston up and down, drives the valve rod up and down to open or close the valve plate, so as to achieve the purpose of connecting or cutting off the air flow in the vacuum system.
The applicable working medium is air and non corrosive gas.
Technical Parameters
| applicability(Pa) | 1×105~1.3×10-6 |
| Valve leak rate(Pa.L/S) | ≤1.3×10-7 |
| Applicable temperature（℃） | -25~+ 40 |
| Air source pressure (Mpa) | 0.4~0.8 |
| Flange standard | GB4982 |
| Installation position | arbitrarily |
| supply voltage | Standard factory: AC220V/50Hz |
| Special designation: ①AC110V; ②DC24V; ③DC12V, etc. | |
| Signal feedback | Standard factory: without feedback signal |
| Special designation: micro switch |
Dimensions
| model | Path (DN) | ΦD | ΦB | ΦW | L | A | H | Flange standard |
| GDQ-J16/KF | 16 | 30 | 17.2 | 55 | 80 | 143 | 162 | GB4982 |
| GDQ-J25/KF | 25 | 40 | 26.2 | 77 | 100 | 170 | 177 | |
| GDQ-J32/KF | 32 | 55 | 41.2 | 85 | 120 | 180 | 187 | |
| GDQ-J40/KF | 40 | 55 | 41.2 | 97 | 130 | 195 | 200 | |
| GDQ-J50/KF | 50 | 75 | 52.2 | 98 | 155 | 228 | 219 | / |
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