GD-J high vacuum damper valve(Angle Valve)is used to open or close the air current in the Vacuum system. The screw drive is adopted as the transmitted components to lift the valve, which are lighter and reliable in movement. GD-J is angle type and GD-S is three-way type with prepumping. Applicable medium can be air and noncorrosive gases.
Basic Dimensions
| Applicable Scope(Pa) | 2×105～1.3×10-4 |
| Valve Leak Rate(Pa.L/S) | ≤1.3×10-6 |
| Medium Temperature（℃） | -25～+80(Seal Material: chemigum) -30～+150(Seal Material: viton) |
| Install Position | arbitrary |
(KF) Overall Dimension
| Model | Diameter(DN) | ΦD | ΦB | H | A | ΦW | Flange Standard |
| GD-J10/KF | 10 | 30 | 12.2 | 122 | 30 | 36 | GB4982 |
| GD-J16/KF | 16 | 30 | 17.2 | 132 | 40 | 36 | |
| GD-J25/KF | 25 | 40 | 26.2 | 158 | 50 | 50 | |
| GD-J40/KF | 40 | 55 | 41.2 | 180 | 65 | 56 | |
| GD-J50/KF | 50 | 75 | 52.2 | 278 | 70 | 100 | / |
Lap Joint Flange Connections and Size
| Model | Diameter(DN) | ΦD | ΦB | H | A | ΦW | n-ΦC | DNy | Flange Standard |
| GD-J50 | 50 | 110 | 90 | 278 | 70 | 100 | 4-Φ9 | / | GB/T6070 |
| GD-J63 | 63 | 130 | 110 | 390 | 88 | 160 | |||
| GD-J80 | 80 | 145 | 125 | 432 | 88 | 8-Φ9 | |||
| GD-J100 | 100 | 165 | 145 | 460 | 108 | ||||
| GD-J(S)150 | 150 | 220 | 195 | 636 | 138 | 200 | 8-Φ11 | DN40(GB4982) | JB919 |
| GD-J(S)160 | 160 | 225 | 200 | 636 | 138 | GB/T6070 | |||
| GD-J(S)200 | 200 | 285 | 260 | 788 | 200 | 12-Φ11 | DN50(GB/T6070) | ||
| GD-J(S)250 | 250 | 335 | 310 | 820 | 208 | 250 | DN63(GB/T6070) | ||
| GD-J(S)300 | 300 | 380 | 350 | 980 | 250 | 8-Φ14 | DN80(GB/T6070) | JB919 |
If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
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