External siphon pit Ø250

The RASAN siphonic manholes for sanitation are manufactured in PE using the rotational moulding technique.

The technical characteristics of the polyethylene used in the manufacture of these pits are as follows:

Density: 940 Kg/m3.

Elongation at break (90 mm/min): >400%

Extension at break(90 mm/min): >400%

Tensile strength (50 mm/min): 21 Mpa

Tensile strength (50 mm/min): 21 Mpa

Modulus of elasticity (2 mm/min): 910 Mpa

Modulus of elasticity (2 mm/min): 910 Mpa

Hardness: 54 SHORE D

Hardness: 54 SHORE D

Melt flow index (190ºC, 2.16Kg): 3.4 g/10min

Flowability index (190ºC, 2.16Kg): 3.4 g/10min

Coefficient of linear expansion: 0.155 mm/m ºC

Hardness: 54 SHORE D

Softening temperature: 112ºC

Temperature of softening: 112ºC

Thermal conductivity: 0.35 Kcal/mhºC

Thermal conductivity: 0.35 Kcal/mhºC

Polyethylene is also perfectly resistant to all components of domestic and industrial wastewater and is resistant to most acids and aggressive salts (see table of resistance to chemical products).

The RASAN PE siphonic pits are manufactured in diameters 400, 315 and 250. The outlet located at the bottom of the pit in the shape of a pipe is what allows the siphonic function of the pit.

The pit is made of PE and has a diameter of 400, 315 and 250.

They are perfectly watertight chambers, which prevent any infiltration of water into the ground or vice versa, making these chambers ideal for ground with water tables and preventing the contamination of aquifers.