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