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| Strainer |
A filter is any device that separates solids from liquids or
gases by passing the fluid suspension through a barrier (the filter medium),
which removes all particles above a certain size and allows the fluid and any
smaller particles to pass through the medium.
strainer is defined by its purpose—to remove unwanted large
particles from a liquid suspension, usually to protect some sort of downstream
equipment, such as a pump or a more delicate filter, from the damage that these
rogue particles might cause.
strainers normally present low resistance to liquid flow.
The pressure drop across most strainers is relatively small compared with the
pressure drop across thick media filters or membrane filters.
Another difference is the function. A strainer is used to
protect other downstream equipment (e.g., pumps, instrumentation) from damage
by rogue junk. A filter is employed to separate particles from the fluid.
Most strainers, whose function is to protect downstream
equipment, are indeed mounted at the pump inlet. Their location is where that
protective function is most effectively achieved, and where the pressure drop
across the strainer will have least impact on the whole system, and where the
strainer can easily be accessed for cleaning.
And some filters operate
under vacuum (behind the filter) rather than high pressure in front of the
filter. ABKOTEC LIMITED PARTNERSHIP
12 Soi Bangna-Trad25, Bangna, Bangna, Bangkok Thailand 10260
Tel. 02-7440761
Fax. 02-7443230
ฝ่ายขาย 24 ชม. M. 086-3679336, 095-9627339, 061-5906036
www.abkotec.com , www.strainer-filter.com
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