GU series manual vacuum ball valve is applicable for the medium flow of connecting or cutting off the pipelines in the Vacuum system. The straightway manual valve relies on spherical sealing. It can be used in both the vacuum and low pressure conditions. It can also be installed in random position.
The applicable active medium of this valve are acid, alkali gas or liquid.
Main technical performance:
| Scope (Pa) | Quick release flange（KF）2×105～1.3×10-5 Loose flange 16×105～1.3×10-5 |
| Valve Leakage Rate(Pa.L/S) | ≤1.3×10-5 |
| Medium temperature（℃） | Standard manufacture：-30～+150 Special designation：-30～+240 |
| Flange Standard | GB4982；GB/T6070 |
| Installation location | Random |
Quick release flange(KF)connection and outline dimension（GB4982）
| Model | Nominal Diameter(DN) | ΦD | ΦB | H | L | A |
| GU-16/KF | 16 | 30 | 17.2 | 62 | 100 | 120 |
| GU-25/KF | 25 | 40 | 26.2 | 75 | 114 | 150 |
| GU-40/KF | 40 | 55 | 41.2 | 115 | 165 | 200 |
| GU-50/KF | 50 | 75 | 52.2 | 125 | 175 | 221 |
Loose flange connection and outline dimension（GB/T6070）
| Model | Nominal Diameter(DN) | ΦD | ΦB | H | L | A | n-ΦC |
| GU-16 | 16 | 60 | 45 | 62 | 100 | 120 | 4-6.5 |
| GU-25 | 25 | 70 | 55 | 75 | 114 | 150 | |
| GU-32 | 32 | 90 | 70 | 93 | 140 | 180 | 4-9 |
| GU-40 | 40 | 100 | 80 | 115 | 165 | 200 | |
| GU-50 | 50 | 110 | 90 | 125 | 175 | 221 | |
| GU-63 | 63 | 130 | 110 | 166 | 186 | 230 | |
| GU-80 | 80 | 145 | 125 | 175 | 198 | 290 | 8-9 |
| GU-100 | 100 | 165 | 145 | 189 | 220 | 260 | |
| GU-125 | 125 | 200 | 175 | 232 | 266 | 360 | 8-11 |
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.
your request will be responsed within 3 hours, kindly pay attention to your email please.
