Shandong ductile iron manhole cover is set as U groove at the entrance of the well ring, and the T type synthetic rubber strip is embedded in the U groove. It plays a buffering role and reduces the vibration force in the contact process between the manhole cover and the well ring. The biggest feature of ductile iron manhole covers is to prevent wear, heavy spherical covers can be pressurized 36T/60T, light pressure 21T. Even if the load pressure exceeds its limit, the ductile iron manhole cover is not as broken as the ordinary cast iron cover, but slightly deformed, and has certain safety guarantee for the car and pedestrians.
Shock proof effect of nodular cast iron manhole cover. By setting U groove at the entrance of the well, the T type synthetic rubber strip is embedded in the U groove, which acts as a buffer in the contact process between the manhole cover and the well ring, thereby reducing the vibration force. Meanwhile, the manhole cover of ductile iron is not easy to be broken, and it has certain safety guarantee for the car and pedestrians.
The second is engaging ductile iron manhole cover and the manhole ring surface, directly on the T type rubber strip, Killing with Kindness noise. A square groove is projected on the outer ring of the manhole cover, and the opening ring at the inner end of the manhole cover is connected with the manhole cover through the shaft fixing shaft of the well seat. Moreover, the surface of cast iron manhole cover is raised with 3mm pattern, so as to play a good anti slip function.
The surface of nodular cast iron cover is raised with 3mm pattern, and the thickness of ductile iron manhole cover is so much that it plays a good anti slip function。 Well ring reserve four rivet bolt hole with 90 degree uniform distribution, each using 4 anchor bolts, eliminates the shift in the road construction process for mechanical rolling occurs, and played a certain security role。
The inner wall of the other end is fixed with the pin body, and the anti-theft function is realized。 When the manhole cover is opened to be placed 90 degrees, the manhole cover can be taken, which is convenient for construction。 Lock by nylon, and equipped with a special tool to open, safe and reliable。
In this paper, Shandong ductile iron manhole cover for you, our website is: http://www.kpp647.com, we will wholeheartedly provide you with better service, you are welcome to visit!