- Protection of pump and rainwater unit
- Two mesh sizes available
- Fixed or floating filters
- Non-return valve
- Kit with connecting hose
Overview
Operating principle and applications
The suction filter is connected upstream of the pump in the storage tank. Floating and fixed suction filters are available. Two mesh sizes can be selected (for coarse or fine filtering). The operational reliability of a rainwater harvesting system is significantly enhanced by the suction filter which helps to reduce pump wear and prevent clogging of valves.
Coarse and fine filter mesh
All suction filters consist of a stabilised, stainless-steel filter mesh. Two mesh sizes are available, i.e. a 1.2 mm mesh for coarse filtering and a 0.3 mm for fine filtering. The coarse mesh is suitable for use with pre-filtered water from storage tanks and other enclosed vessels. The fine filter mesh can be used for unfiltered water from open waters.
Fixed suction filters for submersible pumps
Fixed suction filters are directly connected to the submersible pump without connecting hose or float. They are available with coarse or fine filter mesh.
Floating suction filters
Thanks to the float, the suction point changes with the water level in the tank. As a result, water is extracted from the cleanest part of the tank. Grease and light particles of dirt collect on the water surface where they are regularly flushed away through the overflow. Sand and heavy dirt particles are deposited in the sediment on the tank base.
The large surface area of the floating suction filter ensures free, unhindered inflow of water so that the pump can operate with optimum efficiency. The rounded hose nozzle with its flared collar ensures reliable operation and secure attachment of the hose even when the floating filter frequently shifts position with the water level in the tank.
Kit with connecting hose for floating suction filters
Selected floating suction filters are also available as a kit with hose and connection for the submersible pressure pump or the PE tube to the suction pump.
Non-return valve (optionally available for floating suction filters)
The connection nozzle of the floating suction filter is optionally available with non-return valve. In systems with a suction pump, the non-return valve maintains the water column in the hose so that the pump does not need to reprime itself every time it starts.
Technical Data
| Fine Suction Filter (SAFF und FAFF) | Filter surface area | Filter height and diameter Ø |
Float diameter Ø (floatable version) |
|---|---|---|---|
| Fine Suction Filters with 1" connection | 380 cm² (58.9 in²) | 120 mm (4.7 in) Ø 120 mm (4.7 in) |
Ø 150 mm (5.9 in) |
| Fine Suction Filters with 1¼" connection | 380 cm² (58.9 in²) | 120 mm (4.7 in) Ø 120 mm (4.7 in) |
Ø 150 mm (5.9 in) |
| Fine Suction Filters with 1½" connection | 800 cm² (124 in²) | 170 mm (6.7 in) Ø 220 mm (8.7 in) |
Ø 220 mm (8.7 in) |
| Fine Suction Filters with 2" connection | 1,100 cm² (170.5 in²) | 235 mm (9.3 in) Ø 220 mm (8.7 in) |
Ø 220 mm (8.7 in) |
| Coarse Suction Filter (SAGF und FAGF) | Filter surface area | Filter height and diameter Ø |
Float diameter Ø (floatable version) |
| Coarse Suction Filters with 1" connection | 165 cm² (25.6 in²) | 110 mm (4.3 in) Ø 60 mm (2.4 in) |
Ø 150 mm (5.9 in) |
| Coarse Suction Filters with 1¼" connection | 165 cm² (25.6 in²) | 110 mm (4.3 in) Ø 60 mm (2.4 in) |
Ø 150 mm (5.9 in) |
| Coarse Suction Filters with 1½" connection | 380 cm² (58.9 in²) | 150 mm (5.9 in) Ø 100 mm (3.9 in) |
Ø 150 mm (5.9 in) |
| Coarse Suction Filters with 2" connection | 380 cm² (58.9 in²) | 150 mm (5.9 in) Ø 100 mm (3.9 in) |
Ø 150 mm (5.9 in) |
| ... |
Item number
| Floating suction filter | Fine filtering | Coarse filtering |
|---|---|---|
| With non-return valve for suction pumps | (0,3 mm mesh size) | (1,2 mm mesh size) |
| 1" hose nozzle | SZ 9924 | SZ 9915 |
| 1 1/4" hose nozzle | SZ 9925 | SZ 9916 |
| 1 1/2" hose nozzle | - | SZ 9917 |
| 2" hose nozzle | - | SZ 9918 |
| Without non-return valve for submersible pumps | ||
| 1" hose nozzle | SZ 9935 | SZ 9927 |
| 1" external thread | SZ 9926 | - |
| 1 1/4" hose nozzle | SZ 9936 | SZ 9928 |
| 1 1/2" hose nozzle | - | SZ 9990 |
| 1 1/2" external thread | SZ 9930 | - |
| 2" hose nozzle | - | SZ 9991 |
| 2" external thread | SZ 9931 | - |
| Kits with floating suction filter | ||
| Kits with non-return valve for suction pumps | ||
| Kit with 2 m (6.56 ft) suction hose, suction filter (1“), 90° elbow and 1“ pipe connection | SZ 98 01 | SZ 98 11 |
| Kit with 3 m (9.84 ft) suction hose, suction filter (1“), 90° elbow and 1“ pipe connection | SZ 98 02 | SZ 98 12 |
| Kits without non-return valve for submersible pumps | ||
| Kit for 1“ hose nozzle with suction filter (1“), 1 m (3.28 ft) suction hose and pump connection | SS 9935 | SS 9905 |
| Kit for 1 1/4" inside thread with suction filter (1“), 1 m (3.28 ft) suction hose and pump connection | SS 9931 | SS 9901 |
| Kit for 1 1/4“inside thread with suction filter (1 1/4“), 1 m (3.28 ft) suction hose and pump connection | SS 9932 | SS 9902 |
| Fixed suction filter | ||
| Fine filtering (FAFF) | ||
| Standard version, 1" external thread | SF 0300 | - |
| Standard version, 1 1/4" external thread, 90° brass elbow | SF 9921 | - |
| Extended slimline version, 1" external thread, 90° elbow | SF 9924 | - |
| Coarse filtering (FAGF) | ||
| 1" external thread | - | SG 0331 |
| 1" inside thread | - | SG 0351 |
| 1 1/4" external thread | - | SG 0332 |
| 1 1/2" external thread | - | SG 0333 |
| 2" external thread | - | SG 0334 |
