AN INTEGRATED MANIFOLD HOUSING FOR WATER FILTER-CUM-PURIFIER MODULES
This invention relates to an integrated manifold housing for water filter-cum-purifier modules. The manifold can house various modules without interconnection and with provision for back flushing means. This manifold may be adapted to house any other modules particularly for filtration purposes. With the help of this manifold two separate modules can be integrated without any interconnection. Bypassing of water/fluid flowing through them.
Water filters with different modules currently available have independent filter houses for each module which are interconnected with the help of tubes. This often leads to water leakage at joints and mess up the installation sites. The object of this invention is to overcome or avoid interconnection of different modules and to provide back flushing for cleaning the modules at desired intervals.
The integrated manifold developed by us has four ports. The inlet port is connected to the main water source and to the back flush port. The other two ports are designed to fix the solenoid valve adaptor to which the manifold is connected. The fourth port is provided near the first filter housing inlet port and is normally in the closed position. Closing is affected by means of a dummy plug and a dual O-ring.
The inlet of the manifold is connected to the first filter housing and the outlet of the first filter housing is connected to the back flush port. These connections allow water passage there through. The outlet port of the first filter housing is connected to a solenoid valve for controlling the water fiow. The outlet

of this valve is connected to the inlet of port of the second filter housing and the water flowing there through gets treated and flows out through the outlet port.
The integrated manifold housing for water filter-cum-purifier according to this invention comprises a manifold having four ports for water passage, said manifold supporting at least two filter housings, the inlet port of said manifold being in communication with the inlet of the first filter housing, the outlet of said first filter housing being connected to the inlet of the second filter housing, through a back flush inlet port, the outlet of second in communication with the second housing is outlet port, said manifold having a back flush outlet and a back flush inlet port which are normally closed.
Each housing is provided with cap or cover means for opening and closing at the topside thereof. This is to allow access/removal of filter cartridges.
This invention will now be described with reference to the figures in the accompanying drawings.
Fig. I represents a sectional view of the manifold with filter cartridges and the arrows indicate the direction of water flow.
In all the figures, reference letters WIP, BFIP, WOP, BFOP, SF, OF, CI and C2 stand for water inlet port, back flush inlet port, water outlet port, back flush outlet port, sedimentation filter and organic filter cartridges, cap one and cap two respectively. Reference letters S in figure 2 represents the sediment filter flush water outlet.
In Fig. Ill, FHl and FH2 stand for the first filter housing and the second filter housing which SV stands for the solenoid valve.

Back flushing separation is carried out to clear the filter cartridges. The assembly has to be switched off and the main water inlet closed before back flush operation is commenced. Back flush dummy port is opened and is connected to the inlet water port. Main inlet is then opened and the water is allowed to flow in the reverse direction. After discarding the dirty water, regular operation can be commenced.

WE CLAIM:
1 .An integrated manifold housing for water filter cum purifier comprising a manifold having four ports for water passage, said manifold supporting at least two filter housing for housing filtration cartridges, the inlet port of said manifold being in communication with the inlet of the first filter housing, the outlet of said first filter housing being connected to the inlet of the second filter housing through a track flush inlet port, the outlet of said second filter housing being in communication with the water outlet port, said manifold also having back flush inlet and outlet ports openable by a valve means, said back flush inlet and outlet are in closed position during water filtration and purification process.
2. The integrated manifold housing for water filter-cum-purifier as claimed
in claim 1 wherein said filter housing are provided with removable cap or cover
means.
3. The integrated manifold housing for water fiher cum purifier as claimed
in claims 1 and 2 wherein a valve is provided for regulating and directing water
flow through the filter cartridges.
4. The integrated manifold housing for water filter cum purifier
substantially as herein described with particular reference to the figures in the
accompanying drawings.