Pre-filtration and Water Filtration - Remove Solids from Water

Semi-Automatic Screen Filters

 

 

SERIES SA-500

 

 

 

Standard Features:

• Minimum operating pressure: 1 bar
• Maximum operating pressure: 10 bar
• Clean filter pressure loss: 0.1 bar
• Maximum water temperature: 65°C
• Filtration range: 120 - 3000 micron
• Flush water consumption [at minimum working pressure]: 50 liter
• Filter housing materials: carbon steel coated with baked on epoxy

 

 

Model	Conn. Size ØD [inch]	Screen Area [cm²]	* Maximum Flow Rate  [m³/h]	** Flushing Flow Rate [m³/h]	ØD1   [inch]	L   [mm]	L1   [mm]	L2   [mm]	H   [mm]	H1   [mm]	W   [mm]
SA-504BL	4	3220	80	40	10	350	970	1370	240	400	325
SA-506BL	6	4300	160	40	10	450	1165	1760	240	400	325
SA-508BL	8	5785	300	40	10	550	1360	2155	240	400	325
SA-510BIL	10	8600	500	40	10	110	1150	1950	250	735	970
SA-512BIL	12	11570	650	40	10	1250	1765	2560	280	770	1180
SA-514BIL	14	17350	1000	40	10	1470	1985	2780	315	960	1010
BL	90°
BIL	180°
*	Flow rate data is for high quality water at filtration grade of 120 micron
**	Flushing flow rate data is for minimum operational pressure [1 bar]

 

Pressure Loss at 120 Micron

 

Operation Information for SA-500 Series Semi-automatic Screen Filter

 

Filtration

Water enters the filter through the “Inlet” [1]. Water then reaches the screen [2], which purifies the flow by separating smaller particles from the water.  As more water flows through, impurities build up on the screen.  As impurities on the screen accumulate, a pressure imbalance is built up between the internal section of the screen [2] and its external section.

 

Cleaning process in suction type filter

When the difference in pressure [ΔP] reaches the value was decided by the operator (no more than 0.8bar), or according to the time table that was decided by the operator, a series of events has to be done while the water continues to flow to the system units:

• The operator is checking that the dirt collector [3] is fully in his back position (by spinning the handle [4] clock wise till it stops).
• Then open the flushing valve [5] and spin the handle [4] until the dirt collector come to its stop.
• Then the operator closes the flushing valve [5].

 

When the flushing valve [5] opens water flows outside. Pressure in the flushing chamber [6] and the dirt collector [3] is significantly lowered, and the dirt collector nozzles [7] begin a suction process. Spinning of the dirt collector [3] and the spiral axis filter, cause a full scanning of the screen [2] by the dirt collector. The combination of the linear movement and rotation significantly cleans the whole internal screen [2] surface.

The flushing cycle takes few seconds, while clean and filtered water flows through the “Outlet” [8].

 

Cleaning process in brush type filter

When the difference in pressure [ΔP] reaches the value was decided by the operator (no more than 0.8bar), or according to the time table that was decided by the operator, a series of events has to be done while the water continues to flow to the system units:

• The operator opens the flushing valve [5] and spin the handle [4] few spins. The dirt is flushed out.
• Then the operator closes the flushing valve [5].

 

When the flushing valve [5] opens water flows outside. Pressure in the inner side of the fine screen [2] is significantly lowered, and the brushes [9] wipe the whole internal fine screen.

The flushing cycle take few seconds, while clean and filtered water flows through the “Outlet” [8].

 

 

Legend: Inlet Screen Dirt Collector Handle Flushing Valve Flushing Chamber Suction Nozzle Outlet Brushes

 

 

 

 

SERIES SA-500C

 

 

 

Standard Features:

• Minimum operating pressure: 1 bar
• Maximum operating pressure: 10 bar
• Clean filter pressure loss: 0.1 bar
• Maximum water temperature: 65°C
• Filtration range: 120 - 3000 micron
• Flush water consumption [at minimum working pressure]: 10 liter
• Filter housing materials: carbon steel coated with baked on epoxy

 

 

Model	Conn. Size ØD [inch]	* Maximum Flow Rate  [m³/h]	** Flushing Flow Rate [m³/h]	ØD   [inch]	X   [mm]	Y   [mm]	H   [mm]	Weight   [kg]
SA-502C	2	25	8	6	123	174	657	12
SA-503C	3	35	8	6	144	197	875	16
SA-504C	4	60	8	8	190	280	960	26
*	Flow rate data is for high quality water at filtration grade of 120 micron
**	Flushing flow rate data is for minimum operational pressure [1 bar]

 

Pressure Loss at 120 Micron

 

Operation Information for SA-500C Series Semi-automatic Screen Filter

 

Filtration

Water enters the filter through the “Inlet” [8]. Water then reaches the screen [7], which purifies the flow by separating smaller particles from the water. As more water flows through, impurities build up on the screen. As impurities on the screen accumulate, a pressure imbalance is built up between the internal section of the screen [7] and its external section.

 

Cleaning process

When the difference in pressure [ΔP] reaches the value was decided by the operator (no more than 0.8bar – can be shown on the pressure indicator installed on the filter), or according to the time table that was decided by the operator, a series of events has to be done while the water continues to flow to the system units:

• The operator is checking that the dirt collector [6] is fully in his lower position (by spinning the handle [1] clock wise till it stops.
• Then open the flushing valve [3] and spin the handle [1] until the dirt collector come to its stop.
• Then the operator closes the flushing valve [3].

 

When the flushing valve [3] opens water flows outside. Pressure in the flushing chamber [2] and the dirt collector [6] is significantly lowered, and the dirt collector nozzles [4] begin a suction process. Spinning of the dirt collector [6] and the spiral axis filter, cause a full scanning of the screen by the dirt collector. The combination of the linear movement and rotation significantly cleans the whole internal screen [7] surface.

The flushing cycle takes few seconds, while clean and filtered water flows through the “Outlet” [5].

 

 

Legend: Handle Flushing Chamber Flushing Valve Suction Nozzle Outlet Dirt Collector Screen Inlet

 

 

 

Special Options and Features:

• Construction materials: stainless steel 304L or 316L, and titanium
• Special coating: prevents deterioration from exposure to salt/sea water

 

 

Although the filters are manufactured in a top technical and technological quality, their installation, operation and maintenance are very easy. They are intended for a continuous operation and are non-demanding in terms of both rinsing water consumption and consumption of energy.

 

 

If you require removal of any mechanical impurities from water, please contact us and we will draw up, free of charge, a proposal for the most suitable solution for you, on the basis of a raw water analysis, required filtration capacity [m³/hr] and required quality of output water.

 

 

High Quality Water No Matter Where It Comes From