Product name: Circular Manhole cover
Application:
Pressure type manhole cover series are major use to the pressure tank of food,wine-producing,beverage and pharmacy industries and so on.
Working Principle:
When need repair the storage tank,first to unscrew the handwheel(use to fixed manhole cover and supply the force to axial seal),then open the manhole cover by the handle which fixed in the manhole cover(manhole cover is jointed together by hinge and frame,to ensure accurately closure when the manhole cover close,and the hinge can let the opened manhole cover stop above 30 degree angel of upright position),thus the serviceman can check the storage tank;when the manhole cover closed,both of the seal of manhole cover and the tank can ensure complete sealing,so,we can avoid leakage of the tank.
Standard Design:
NUOMENG have Elliptical or Round,without sight glass or with union type sight glass manhole cover.Pressure manhole cover can have above 4 handwheel to fix the device,the handwheel quantity is depend on the size,the pressure ,and the temperature.Also we can produce based on your requirement.
Technical Data
| Working pressure |
Max. Pressure is 5.0bar |
| Working negative pressure |
Full vacuum |
| Range of temperature |
-10º C to 250º C |
| Steel parts material |
SS304,SS316L |
| Seal Material |
EPDM |
DELIVERY:
Usually within 15days after receiving T/T down payment
PAYMENT:
We prefer to do 100% T/T (30% T/T in advance, 70% T/T before shipment)
FAQ:
I. Are you factory?
Yes,we are factory and we're specilized in manufacturing valve for 15 years.
II. Which countries do you expot to?
We're exporting to about 40 countries around the world. For Europe and America Area ,it takes about 30%,Middle East area:40%, Africa area:30%.
III. If you can do valve in our brand?
Yes,we can do your brand,but need you to provide the certificate of authrization for us.
IV. Where is your factory ?
Our factoury is located in Wenzhou city. If you have time ,welcome to visit us!
V.Which delivery port do you usually use?
There are three port we usually use:Shanghai pot,ningbo port,Wuhu port.
VI,What kinds of certificates do you have?
We have ISO9001:2000 quality certificates,3A certificatesand ISO14001:2014
Packing:
Audited Supplier 
){kind=link}
){kind=link}