The manhole device with protecion ring and spring assisted opening device, can be easily assembled on top of glasslined reactors, easy to open and close. When feeding, the manhole can avoid being worn and bruised with the protection ring device .
The manhole cover with sintering sight gass is
the upgraded producls. This device is more suitable
for installation in the CIP cleaning system of the
production lines. The sight glass and manhole cover have been burned into an organic whole, which makes it easier for sight glass to be cleaned. What's more, using quick opening hand hole device makes the operation more convenlent and faster.