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Sewer Management 

 

Flushing systems for storm water tanks and channels 
Extra efficient cleaning without external water supply, with or without external power. 
Made of stainless steel and the plants are nearly maintenance-free.
Flushing lanes in tanks up to 120 m as well as flushing lanes in channels up to 200 m have been built.

               

Flushing system for channel Flushing systems Flushing and impounding protection
 

 

Float operated regulator for 3 to 10.000 l/s 
Constant discharges in slop, mixed and rain water channels as well as storm water tanks.
Various types and sizes for different applications.

The regulators are usually made of stainless steel and are nearly maintenance-free.  

 

                 

Regulator building with screen                   Installed regulator - top view                      Water retention basin with installed regulator
 

 

Rainwater Infiltration

The NEUHOLD rainwater infiltration system consists of light-weight, plastic, semi-circular shells with the capacity to buffer and infiltrate rainwater from sealed surfaces into the ground. The semi-circular shells have a 100 % buffering capacity and compared to gravel, the infiltration ditches need less than 1/3 of conventional space. Rainwater can pass freely through the bottom and infiltrate the ground through holes in the side of the tunnel.

 

Each start section is equipped with a single ND100 hole as an inlet and is capable of connecting to pipes with a diameter of up to ND300. With only three different components (tunnel, start and end sections) it is possible to construct an even larger system with minimum installation costs. Moreover the system can be easily stacked, so transport costs are minimal.

 

 

  Advantages:

  - efficient and economical giving excellent value-for-money

  - minimal transport costs (easy stacking)

  - increased load capacity of up to SLW30

  - 100% porous - minimal space usage

  - simple and quick installation by linking tunnels together

  - extended durability by using indestructible 100% recycleable 
    polyethylene (HDPE)

  - extremely light-weight and portable

  - suitable for rainwater attenuation

 

 

Biofilter for Sewer Manhole

- stops unpleasant odour

- high reliability because of use of high-quality   
  material (stainless steel and high-quality plastics 
  PE-HD)

- high durability of filter material (if required, filter 
  material can be changed - this will be necessary 
  after approx. 5 years)

- no tool necessary for installation

- complete sealing between filter and sewer manhole
  by the sealing at the outside of the filter

 

 

Backwater Flap

NEUHOLD backwater flaps are used in connection to surface, sewer and process water systems.

Water discharging from the pipe opens the flap, however when the head increases on the downstream side, the flap is pressed against it's seal, preventing backflow. Backwater flaps require only a small head in the pipe to open the flap, as HDPE floats in water - the backwater flaps are fitted with a counterweight to balance the flap correctly.

Advantages:
- easy to install
- relatively light in weight because HDPE is used
- nearly maintenance free