Sewer Non-Return Valve

Specification: 

1. Approved for use in sewer service line according to BS EN 13564 standard
2.  Able to prevent sewage from returning from the main pipe to the branch
3. Proper design of non-return valve to prevent clogging of the valve
4. The possibility of washing and removing non-return valve lid without the need for drilling in “with vertical riser” model
5. No locking and ease of movement of disk due to the special design of the valve hinge
6. Appropriate slope design at the bottom of the valve to facilitate drainage
7. The right angle at the seat to prevent half-open disk of the valve
8. Lack of screw mounting on the body for easy opening, washing and inspection of the valve