Stainless steel sanitary atmospheric pressure DN200 DN300 DN400 DN500 round manhole cover

Working Principle

When need repair the storage tank. first to unscrew the hand wheel (use to fixed manhole cover and supply the force to axial seal), then open the manhole cover by the handle whick 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 opened manhole cover stop above 30 degree angle 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.

1. May I have free samples before ordering?

Yes, our company is very pleased to send you free samples for quality test as long as freight cost being paid by buyers themselves

2. What's the payment term

For small orders, we accept PayPal, Western Union, T/T and Credit Card.

For mass orders, we accept T/T and L/C.

3. Can i have my own Logo on the product?

Yes, you can send us your drawing and we can make your logo.

4. Do you have any MOQ of your products?

We always have stock for valve

5. Do you accept no-standard products?

Sure, as soon as you could provide drawings or detail.