50 Microns Pressure Sand Filter for Irrigation Water Filter

20 Microns Pressure Sand Filter for Irrigation Water Filter


1. Characteristics of the sand filter

1. Automatic control system adopts modular design which according to the size of the flow,
Select multiple filter unit.
3, Clean methods: Differential pressure switch, pneumatic butterfly etc.,
4, high efficiency backwash, Cleaning time is short.
5, easy installation, without any lifting device
6. Wide application
7. Good quality
8. Select different filter medium combination



2. Parameter

Single Flow Rate: 6-300m3/H
Design Pressure: 7.5-16 bar
Water inlet pressure: 2.5-3 bar
Seal Type: O-ring and Washer
Filter Precision: 20-100 microns
Connect Method: Flange
Surface Treatment: Matt Spray Beads, Mirror Polishing, Electropolishing
Control Method: Differential pressure switch, pneumatic butterfly valve, PLC
Filter sand type: Quartz sand, manganese sand, activated carbon, Anthracite, fiber ball, resin
Filter medium supply: We can supply different kind filter medium and combination
Equipment Chamber Material: Carbon steel 304ss or 316L
The key of filter effect: Water distribution and catchment technology

No	Model	Diameter mm	High mm	Connect Diameter mm	Filter area m2	Flow Rate T/H
1	QLQ500×710	520	816	40	0.2	6-10
2	QLQ600×766	620	874	40	0.28	8-14
3	QLQ700×819	720	899	40	0.38	12-19
4	QLQ800×872	820	957	50	0.5	15-25
5	QLQ900×1024	920	1104	50	0.64	18-30
6	QLQ1000×1079	1000	1164	50	0.79	23-39
7	QLQ1100×1131	1100	1211	50	0.95	28-47
8	QLQ1200×1182	1200	1267	80	1.13	33-55

3. Application

1. Centre air condition water system
2. Industrial circulating cooling water system
3. Swimming pool circulating water system
4. Artificial landscape water system
5. Agricultural irrigation, River water, etc.,

4. How sand filter works

1. Filtering


When filter is under operation, the original water flow into packing layer advective by through
The upper water distributor, in where matched with spherical shell. Impurities are hold back at
Packing layer. Then Collector under filter will accept these water, and flows out them. One thing
Needs to emphasizes that advective filtering can improve the filter efficiency under the high speed
Operation.

2. Backwash


The head loss increases as the impurities accumulates at packing layer continuously. When
It comes into a limit or reached to time limit, system will switched into backwashing to clean
Packing layer's impurities. To clean these accumulated impurities is a must thing.
In the process of backwash, the on-off switch of three-way valve will be changed by PLC,
With inlet closed, and drain let open. Impurities will out through three-way vale's drain outlet.
On FQG system, a circulation exists at packing layer under the function of the specialized
Collector. Silica sand rub each other, which high efficiently improves the backwash. When
Backwash is finished, valve returns to filtering state, which another filtering comes into backwash.
Normally a filter system is made of multi-filter tank, they work in turn, which ensure there's no
Stop in backwash.


                           Welcome to inquire, You will get more than that you see!