• MD-100, MD-150

Wall bushing MD-100, MD-150

The INTEWA MD-100 and MD-150 wall bushings are specially developed from INTEWA for rainwater harvesting. Inserted into walls, they prevent cold,  damp and backwater from permeating the ductwork into the installation room by sealing the pipework and electrical cabling. They feature different size holes to take both suction and pressure hoses and electrical cables through walls to the water supply unit. Unused holes in the bushing are sealed with rubber stoppers.  Bushings are made of stainless steel and a high-quality rubber compound and are easily installed and sealed in place, even if retrofitted.

INTEWA offers two sizes of wall bushing for installation into standard DN100 or DN150 ductwork:

  • MD-100 for RAINMASTER Eco and Favorit water supply units  
  • MD-150 for supplemental supply units using mains water in the tank

Assembly, installation and maintenance

The bushing is mounted in the wall. Depending on the hoses and electrical cables used, push out the factory fitted rubber stoppers and feed in the hoses/cables. Tightening can be done from one side of the wall, with a screwdriver. Maximum clamping torque: 35 Nm

  • The wall bushings are not suitable for constant high-pressure water.
  • The suction hose must be installed so it passes through the wall and bushing at such an angle that allows any water to move back in the direction of the tank.

Technical Data

MD-100

Outside diameter: 99 mm
Rubber seal thickness: 30 mm
Stainless steel thickness: 5 mm
for supplemental supply line: ---
for pipe cross section I: 31-34 mm/ 19-22 mm
for pipe cross section II: 19-22 mm
for cable cross section I: 5 - 10 mm
for cable cross section II: 6 - 10 mm
Material: Stainless steel, NBR

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MD-150

Outside diameter: 149 mm
Rubber seal thickness: 30 mm
Stainless steel thickness: 5 mm
for supplemental supply line: PE DN50
for pipe cross section I: 31-34 mm
for pipe cross section II: ---
for cable cross section I: 5 - 7 mm
for cable cross section II: 9 - 11 mm
Material: Stainless steal, NBR

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Information

Tel. +27 (0)82 552 7774

E-Mail: purerain@iafrica.com

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