Hydraulic drive self-cleaning filter

DLHF300 hydraulic suction self cleanin filter

Automatic self-cleaning water filters: Single unit flow 19-2000m3/h Filtration precision 20-4000 micron

Type：Vertical Material：Carbon steel Cleaning：Brush Control：Automatic

Product advantagev

> High flow rate/high filtration accuracy

> Low pressure loss/low backwash water consumption

> High automation level

Product principle

The water flows through the screen and the particles are retained on the inside of the screen of the filter element. The filtered water then flows out through the outlet.

When the particles accumulated to a certain number and the pressure differential increases to the pre-determined level, the flushing cycle starts.

It include two steps: First, the automatic drain valve opens on the drainage outlet. Then, electronic motor drives the cleaning brushes which are inside the screen, the solids are expelled through the drain valve.

Filters continue to supply filtered water even during the flushing cycle.The whole working system is controlled by a smart box which has several control modes: pressure differential, time, manual and PLC.

Flowrate	19-4000m3/h	Control way	Differentialpressure/time/manually/PLC
Filtration precision	20um-4000um	Cleaning way	Brush
Working pressure(max.)	1 .6MPa(Customized)	Cleaning time	10-200S(Adjustable)
Working pressure(min.)	0.1MPa	Perforate screen	800-4000um
Working temperature	<65'℃	Wedge screen	50-1000um
Power	380V150HZ	Sintered screen	20-800um

Product principle

The water flows through the screen and the particles are retained on the inside of the screen of the filter element. The filtered water then flows out through the outlet.

Self-cleaning mode can be started by pressing, timing or manual three ways, following the principle of pressure difference.

When the internal and external pressure difference reaches the set value, the self-cleaning mode starts.Drain pipe hydraulic valve open, sucking the scanner to produce negative pressure suction nozzle inside, absorbing impurities, at the same time sucking scanner in under hydraulic motor along the inside surface mesh do reciprocating screw, movement, no cleaning blind area, impurities by the discharge outlet.

The cleaning time of self-cleaning filter is set by the controller in advance, the drain valve is closed after cleaning, and little water loss in cleaning process.

Product principle

Single maximum filter flow	10-200m3/h	Pressure loss	0.01MPa
Filtration range	25μm-400μm	Control way	Pressure difference/Time/Manually
Max working pressure	1.0MPa	Cleaning time	30seconds(optional)
Min working pressure	0.2MPa	Power	220V/50Hz
Working temperature	≤65℃	DC	9v

Selection of data table

MODEL	WATER IN/OUTLET （mm）	SCREEN AREA （cm2）	D1 （mm）	X （mm）	Y （mm）	H （mm）	H1 （mm）	FLOW （m3/h）	WEIGHT (Kg)
DLHF-302	50	1720	273	237	250	820	1100	20	20
DLHF-303	80	1720	273	237	250	820	1100	50	50
DLHF-304	100	1720	273	237	250	820	1630	80	80
DLHF-304Max	100	3430	273	237	400	1050	3000	100	100
DLHF-306	150	4330	273	257	450	1255	4500	130	130
DLHF-308	200	5500	325	283	560	1425	5780	200	200