banner
Manhole Covers
home

Manhole Covers

The Testing Methods for Manhole Cover Loading Capacity

The Testing Methods for Manhole Cover Loading Capacity

  • 2018/04/24

For all of Manhole Cover , Gully Gratings , there have one important feature of this products is Loading capacity . According to EN 124-1:2015, EN 124-5:2015 standard , there have six grade loading class , from A15 to F900 .


In actually production , how to making a strict testing method for manhole covers is a key to guarantee the quality . As EN124 , there has two requirements on loading process .


First is testing permanent sets less than remands .

Second is loading the pressure more than 30 seconds .


Eg .  A dia600mm D400 composite manhole cover requirement in loading testing :

1,The permanent set of the cover was < 2.0mm which is within the permissible stated in Table 8 of the standard. (1/300 x 600 = 2.00mm).

2,The cover held the test load of 400kN for the required 30 seconds.


The cover therefore passed the EN124 D400 test for both permanent set and load.



copyright © 2020 Quanzhou Jieqiang Road Facility Co., Ltd.all rights reserved. powered by dyyseo.com

ipv6 network supported

ipv6 network supported

top

Send A Message

Send A Message

    If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.