Two options to satisfy all customer requirements

The manhole is supplied in a combination of elements already assembled and welded at the factory.

Advantages of this solution:

The speed of installation and the ease of storage
The preferred choice on any green field project sites;
Lightweight machinery is sufficient for the lifting and handling.

Water tightness is guaranteed up to 0.5 bar by extrusion welding,carried out by skilled and certified personnel at the factory or at Hofit Distributors workshops.

SUITABLE FOR INSTALLATION WHERE:

Groundwater may be present
There is a time constraint
The workforce is unskilled
It is a new project site.

The manhole is conceived as a combination of separate elements to be assembled on site.

Advantages of this solution:

Elements can be combined to meet the specific site requirements;
Very easy assembly even by low skilled personnel;
Mechanical equipment is not needed for lifting and handling.

Water tightness is guaranteed up to 0,5 bar by using HOFIT "JG" type double lip EPDM gaskets.

SUITABLE FOR INSTALLATION WHERE:

Unmapped networks are present
Space is tight
Design is incomplete or uncertain
Access for heavy machines is difficult.

The multitude of possible combinations between BASES, ELEVATION elements and TOP elements, which are all available in a wide range of DIAMETERS, make it possible to fully satisfy the Customer’s needs:

BASE Elements

STRAIGHT CANAL BASE: suitable for linear sections, installed normally every 50 meters to enable easy cleaning with water jets.

ANGLED CANAL BASE: to allow inspection at changes of direction, where clogging and obstructions are possible. (available with 15°, 30°, 45,° 60°, 75°, 90° angles, in both right and left directions).

2-3-4 or 5 INLETS BASE: for inspection at the confluence of secondary lines.

MULTI-INLET BASE: to create an inspection chamber when one or more users have to connect even at a later stage and at any angle without any constraint.

SPHERICAL BOTTOM BASE: to create an inspection chamber where it may not be made with standard bases.

Upper units

The upper unit may be supplied with open top diameter of 600 mm, 630 mm or 700 mm in two different versions:

Concentric cone
Eccentric cone These may in turn be supplied in 4 different types:
- Without ladder
- With integral PE ladder
- With GRP or Stainless Steel ladder

For safety reasons, the first step is always fitted 50 cm below ground level.

Elevations

The elevations for models with a diameter up to 630 mm are supplied with variable heights.
Elevations with 800 mm, 1000 mm and 1250 mm diameters may be supplied with heights of 500 mm and 1000 mm, again in 4 different versions according to the chosen type of ladder.

The Ladders: extra safety

Maximum safety for the operators: compliance with EN 13598 standards guarantee the quality and safety requirements of the ladders.

provide an adjustment cylinder on the top of the manhole; together with the concrete slab they allow for adjustments of up to +/- 30 cm to the new road level;
allow for connections to be made up to a diameter of 200 mm around the entire circumference by using a simple cup wheel cutter.