Vacuum Tubing - High vacuum Trimming valve – Super Q
Vacuum Tubing - High vacuum Trimming valve – Super Q Detail:
Features
Fine thread structure is adopted with high adjustment precision.
Shaft seals are sealed with fluorine rubber, and hair bars are welded with stainless steel, with low leakage rate.
The needle and stem are designed separately and the ball seat is Installed at the connecting part, which prolongs the service life of needle valve and valve seat and facilitates maintenance.
Technical Parameters
Pressure range：1×10^(-5)Pa~1.2×10^(5)Pa Service life until first maintenance：3000 times Minimum adjustable flow：4.7×10^(-3)Pa.L/S Valve body baking temperature：≤150℃ Pressure difference on opening：≤1.2×10^(5)Pa Any Installation orientation：Any
Body and seat leak rate：1.3×10^(-7)Pa.L/S Valve position indication：With dial indication
Trimming Valves External Size
| Model | DN | ConnectinFlange | Dimensions（mm） | |||||
| 1 | 2 | A | B | C | D | E | ||
| EVGW-J2(KF) | 0.8 | KF16 | KF16 | 90 | 30 | 30 | 28 | 45 |
| EVGW-J2(CF) | 0.8 | CF16 | CF16 | 98 | 34 | 35 | 28 | 52 |
| EVGW-J2（GK） | 0.8 | KF16 | Pipefittings | 90 | 30 | 30 | 28 | 45 |
| EVGW-J4(KF) | 1.2 | KF16 | KF16 | 93.2 | 30 | 30 | 28 | 45 |
| EVGW-J4(CF) | 1.2 | CF16 | CF16 | 98 | 34 | 35 | 28 | 52 |
| EVGW-J4(GK) | 1.2 | KF16 | Pipefittings | 90 | 30 | 30 | 28 | 45 |
Product detail pictures:
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