FlowForge
পুল ফিল্টার ধরন ও OEM পাইকারি সরবরাহ
সার্কুলেশন পাম্পের ফিল্ট্রেশন সঙ্গী, পুল-সরঞ্জাম ব্র্যান্ড, ডিস্ট্রিবিউটর ও ইনস্টলারদের জন্য: কার্ট্রিজ, বালি ও DE ফিল্টারের পার্থক্য, পাম্পের সঙ্গে রেটেড ফ্লো কীভাবে মেলাবেন, এবং আমরা কোন OEM বিকল্প কোট করি। এটি সরবরাহ পাতা, খুচরা দোকান নয়। প্রকাশ্য মূল্য নেই; প্রতিটি কোট আপনার ডিউটি শিট থেকে শুরু।
What a pool filter does
Cleaning the circulating water
The circulation pump pushes pool water through the filter, which traps suspended particles before the water returns to the pool. A strainer basket on the pump suction catches leaves and larger debris first, so the filter only sees fine particles. See the pool pump page for the pump side.
Why the filter and pump must be matched
The pump can only deliver flow the filter will pass. A filter that is too small for the pump raises pressure and lowers flow. A filter that is oversized for the pump works but is bigger and costlier than it needs to be.
Cartridge, sand and DE pool filter types
Cartridge
A pleated element traps particles on its surface and is cleaned by removing and rinsing it. It has a large surface area, so it handles a given flow at low pressure drop, and there is no backwash water to dispose of.
Sand
Water passes down through a bed of graded sand in a tank. Cleaning is done by backwashing, which reverses the flow through a multiport valve. It is simple and tolerant of dirt, but it filters to a coarser particle size than cartridge or DE.
Diatomaceous earth (DE)
A fine powder coats grids or fingers inside the tank and traps very small particles. It filters finest of the three, but needs the powder recharged after each backwash and careful handling of the used media.
Choosing between them
Cartridge suits low maintenance effort and no backwash water. Sand suits simple, robust duty. DE suits the finest filtration and the most upkeep. Your market, local rules on backwash discharge and water quality target decide the choice.
Flow rating, pressure drop and tank construction
Flow rating against pump duty
Filters are rated for a maximum flow. Keep the pump flow at the duty point at or below that rating, in GPM or m³/h, with margin. Running a filter above its rating forces water through faster and cuts filtering quality.
Pressure drop
A clean filter adds a small pressure drop and a dirty one adds more. The pressure gauge reading rises as the media loads, and that rise is the usual signal to clean. Include the dirty-filter head in the pump duty.
Tank, valve and fittings
Tanks are commonly molded polymer or glass-reinforced plastic, with a pressure rating stated for the tank. Sand and DE filters add a multiport valve. Connection size and type should match the pump and the plumbing.
Materials and water type
Parts in contact with chlorinated or salt water need corrosion-resistant materials, and metal fittings need protection. Confirm exact materials on the RFQ rather than relying on a general claim.
Maintenance and the strainer basket
Strainer basket
Empty it regularly. A full basket starves the pump of water and reduces flow through the whole system.
Cartridge upkeep
Remove and rinse the element when pressure rises. Elements wear out and are replaced as a spare part.
Backwash for sand and DE
Backwash when the gauge rises, then rinse. DE also needs fresh powder added after backwash.
Spares
Elements, grids, valves and o-rings can be quoted as spares. See the wholesale hub for lots and spares.
OEM options we quote
Private-label tank and label
Your name on the tank, label and carton, quoted to the duty sheet.
Media type and size
Cartridge, sand or DE, with the flow rating set to your pump range.
Connections and valve
Port size, thread or union type, and valve style for your market.
Packaging
Retail carton or crate lots, with marks and pallet notes on the PO.
Pool filter selection checklist
Send these fields on the inquiry form. The pump spec guide has the general RFQ brief.
Pool size and type
Volume, above-ground or in-ground, and turnover target.
Pump flow and head
Flow at the duty point, in GPM or m³/h, and the pump model it must pair with.
Media type
Cartridge, sand or DE.
Water type
Chlorine, salt system, or other sanitizer.
Connections
Port size and type, and valve style.
Branding and packaging
Private label, carton and quantity.
Quoted to your duty sheet
Pool filters are quoted to the duty sheet. No catalog SKU on this site is a pool filter, so no catalog cards are shown here. The circulation side is on the pool pump page, and the pool heater page covers what comes after the filter.
Two ways to buy
OEM and private label
Building a filtration range under your own brand? Start from a duty sheet. See Custom OEM for options and the private-label hub for tank, label and packaging.
Wholesale supply
Buying in crate lots for distribution or installation? The wholesale hub covers lots and spares. MOQ is quoted by SKU, not as a site-wide number.
Pool filter FAQ
Do you sell pool filters to consumers?
No. This is OEM and wholesale supply for brands, distributors and installers. There is no cart and no public price. Send a duty sheet on the inquiry form.
What is the difference between cartridge, sand and DE pool filters?
Cartridge filters trap particles on a pleated element that is rinsed clean. Sand filters use a bed of sand that is backwashed. DE filters use a fine powder coating and filter the finest, with the most upkeep.
How do I match a pool filter to a pump?
Keep the pump flow at the duty point at or below the filter's rated flow, and include the pressure drop of a dirty filter in the pump head. The pool pump page explains how to size the pump.
How often does a filter need cleaning?
Clean when the pressure gauge reads noticeably above its clean-filter value. How often depends on pool use, debris and water chemistry, so there is no single interval.
Can you private-label a pool filter or supply it wholesale?
Yes. OEM and private-label work is quoted from a duty sheet, and lots are quoted by SKU. See private label and wholesale.
পাম্প কারখানা কোট দরকার?
তরল, ডিউটি শিট বা SKU, পরিমাণ ও দেশ পাঠান। কর্মদিবসে সাধারণত ২৪ ঘণ্টায় উত্তর।