Sewage Valve Backwater

“RTP” sewer check flapper valve made of stainless steel with a reed seal, maintenance cover and connection Hole size into // outlets for PP-R, PVC flared pipes suitable for a flap fixing in the closed position through the hand lock with the safety cutoff preventing spontaneous closing.
Sewer check valve RTP-10 (grey) and RTP-110 (orange) is installed true-horizontal either in the basement (before transition of the internal pipe to the external) or in the outdoor sump. Thus, the sewer valve separates the indoor sewerage from the outdoor one. Inlet and Hole size into // outlet valve connections joint any PP-R/PVC flared pipe. If steel or cast-iron no-hub pipe is used for sewerage, transition from PP-R – PVC to cast Iron/steel shall be done.

Rubber wiper seals with a packing block are used as gaskets, which comply with DIN 4060. An installation requires usage of “RTP” special silicone grease.


Outdoor sewerage

Outdoor sewerage represents the pipeline network, used for drain disposal from living accommodation and industrial sectors to treatment facilities or waste water storage. The main elements of the sewerage system, both outdoor and sanitary, are the sewage pipes. Among the sewage pipes the most popular are the articles made from polymeric materials, among which the polyvinyl chloride pipes and polypropylene pipes.

Sewage pipes are selected, on the basis of the required characteristics of the concrete pipeline. Articles made from the polymeric materials, including the sewage pipes, have got a number of advantages: overstability at low-density of the material, chemical resistance, resistant to internal wear, ecological safety and durability. Of not little interest of the plastic pipes for outdoor sewerage is their not-too-high price, especially if we compare with their metal analogues.

Operational data for the sewage pipes:

  • temperature ceiling – 60°С;
  • resistance to temperature difference – 0-45°С;

Plumbing in outdoor sewerage is carried out with the pipeline pitch along the drains at a more deeply laying depth, than the depth of ground freezing. If the system is laid in the place of moving of truck transport, the laying depth must be minimum 2 meters