Brand: EVP
Classification: Flapper valve category
Availability : In Stock
GDQ-J is angle type and GDQ-S is three-way type with prepumping. Applicable medium can be air and noncorrosive gases.
(Picture One)(KF) Overall Dimension
| Model | Diameter(DN) | ΦD | ΦB | H | A | Flange Standard |
| GDQ-J10/KF | 10 | 30 | 12.2 | 180 | 30 | GB4982 |
| GDQ-J16/KF | 16 | 30 | 17.2 | 180 | 40 | |
| GDQ-J25/KF | 25 | 40 | 26.2 | 200 | 50 | |
| GDQ-J40/KF | 40 | 55 | 41.2 | 210 | 65 | |
| GDQ-J50/KF | 50 | 75 | 52.2 | 276 | 70 | / |
(Picture Two)Lap Joint Flange Connections and Size
| Model | Diameter(DN) | ΦD | ΦB | H | A | n-ΦC | DNy | n-Mb | Flange Standard |
| GDQ-J50 | 50 | 110 | 90 | 276 | 70 | 4-Φ9 | / | / | GB/T6070 |
| GDQ-J63 | 63 | 130 | 110 | 283 | 88 | ||||
| GDQ-J80 | 80 | 145 | 125 | 314 | 88 | 8-Φ9 | |||
| GDQ-J100 | 100 | 165 | 145 | 338 | 108 | ||||
| GDQ-J125 | 125 | 200 | 175 | 424 | 128 | 8-Φ11 | |||
| GDQ-J(S)150 | 150 | 220 | 195 | 482 | 138 | DN40(GB4982) | JB919 | ||
| GDQ-J(S)160 | 160 | 225 | 200 | 482 | 138 | GB/T6070 | |||
| GDQ-J(S)200 | 200 | 285 | 260 | 620 | 200 | 12-Φ11 | DN50(GB/T6070) | ||
| GDQ-J(S)250 | 250 | 335 | 310 | 655 | 208 | DN63(GB/T6070) | |||
| GDQ-J(S)300 | 300 | 380 | 350 | 783 | 250 | 8-Φ14 | DN80(GB/T6070) | JB919 | |
| GDQ-J(S)320 | 320 | 425 | 395 | 789 | 250 | 12-Φ14 | GB/T6070 | ||
| GDQ-J(S)400 | 400 | 510 | 480 | 1210 | 330 | 16-Φ14 | DN100(GB/T6070) | 16-M12 | |
| GDQ-J(S)400 | 400 | 500 | 465 | 1210 | 330 | 8-M16 | JB919 | ||
| GDQ-J(S)500 | 500 | 610 | 580 | 1270 | 360 | DN125(GB/T6070) | 16-M10 | GB/T6070 | |
| GDQ-J(S)600 | 600 | 710 | 670 | 1562 | 450 | 12-Φ21 | DN160(GB/T6070) | 12-M18 | JB919 |
| GDQ-J(S)630 | 630 | 750 | 720 | 1562 | 450 | 20-Φ14 | 20-M10 | GB/T6070 |
GDQ pneumatic high vacuum damper valve(Angle Valve), motivated by compressed air, pushes the cylinder to up and down move with the valve rod by changing the direction of electromagnetism to transform the gas circuit direction, which drives the valve to open or close, in order to cut off or connect gas flow in the Vacuum system. GDQ-J is angle type and GDQ-S is three-way type with prepumping. Applicable medium can be air and noncorrosive gases.
Basic Dimensions
| Applicable Scope(Pa) | 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) |
| Air Source Pressure(MPa) | 0.4～0.8 |
| Install Position | DN＜300 for any,DN≥300 for vertical |
| Power Valtage | Standard Technism：AC220V/50Hz especially for AC110V；DC24V；DC12V |
| Signal Feedback | Standard Technism：without feedback signal especially for Magnetic SwitchDC/AC5～240V |
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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