Drainage Filter

Structure and Working Principle
 
P-type automatic sewage filter is made of high-quality carbon steel cylinder, the special structure of the stainless steel wedge filter screen, flow direction valve and sewage drain. In the working status, flow direction valve is on, the water flow from the inlet into the filter, through the filter screen to the outlet (see Figure 1). When the filter needs sewage, flow direction valve closed, open the drain valve, water flows through the first half of the mesh filter, part of the water flow into the system from the outlet, the remaining water flow from the backside of the filter into the inside, automatic backwash the filter screen (see Figure 2). So that the entire washing process is operating normally, without downtime.
   Flow direction valve opening mechanism include sub-manual and electric type, when using an electric opening mechanism with clock control electrical control box, it can set the time required to achieve automatic cleaning sewage, then the outfall installed electric ball valves, flow direction valve and sewage electric valve to achieve linkage.


Features:

1.Small volume, low cost, no filter, a small amount of maintenance. Long mesh tube network life and high reliability.
2.High degree of automation, easy operation and management, long-term unattended operation.
3. Low pressure loss, energy saving, the use of the main channel hydraulic backwash, no need for backwash water.
4. Filtration precision: 1000-5000μm.
5. Easy to install, can be installed directly on the pipe, particularly suitable for field use under various process conditions.
6. Widely usage, ensure a safe operation of the water utility, simple and reliable method in any backwash process, can maintain uninterrupted normal operation.

Applications:

1. The domestic water supply, water supply and pre-filtering for industrial water supply;
2. steel, petroleum, chemical, paper, automotive, food, metallurgy and other industries beginning circulating water filtration;
3. Fist stage of circulating cooling water filtration;
4. The water reuse, waste water treatment filter;
5. Central air conditioning, boiler return early filter;
6. Municipal, green spraying, irrigation, agricultural irrigation, drip irrigation water filter early.

 Parameter

Model	Inlet& outlet		A	L	D	Flow rate
	inch	mm	mm	mm	mm	T/H
FLQ-2PZ	2	50	600	340	25	19
FLQ-3PZ	3	80	600	400	25	50
FLQ-4PZ	4	100	680	470	40	80
FLQ-5PZ	5	125	680	530	40	125
FLQ-6PZ	6	150	50	610	50	180
FLQ-8PZ	8	200	900	750	50	320
FLQ-10PZ	10	250	1050	900	50	490
FLQ-12PZ	12	300	1300	1100	65	710
FLQ-14PZ	14	350	1450	1250	65	970
FLQ-16PZ	16	400	1600	1350	65	1260
FLQ-18PZ	18	450	1800	1500	100	1590

 
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