HJLYGL 3" Two-Channel Cooling Water Side-Stream Filtration Unit (Hydrocyclone + Disc Filter)
HJLYGL 3" two-channel cooling water side-stream filtration unit combines a hydrocyclone sand separator with a fully automatic backwash disc filter system. Designed for 1%-5% side-stream treatment of central AC cooling water and industrial circulating water, it automatically removes sand, rust and suspended solids to protect heat exchangers and cooling towers, improving heat transfer efficiency while saving water and energy.
Frequently Asked Questions
- How do I choose the filtration degree for an irrigation filter?
- Match the filtration degree to the emitter: drip irrigation needs 120 mesh (~125 micron) or finer, micro-sprinklers typically 80–100 mesh. HJLYGL disc filters are available in 40–300 mesh to match your water quality and emitters.
- Manual or automatic backwash disc filter — which one should I choose?
- Choose a manual backwash disc filter for cleaner water and smaller systems. For high-silt or algae-laden sources, large farms or unattended operation, the HJLYGL H-type automatic backwash disc filter system is recommended, with differential-pressure and timed control modes.
- Which filter type fits my water source?
- For well water with high sand content, combine a hydrocyclone sand separator with a screen or disc filter. For surface water (reservoir, pond, river) rich in organic matter, use sand media or disc filters as the primary stage. We provide free selection proposals.
- Do you support OEM/ODM?
- Yes. With 14 years of export manufacturing experience, we offer OEM branding and ODM customization including logo, packaging, port sizes (1"–4") and filtration degrees.
- What is your MOQ and lead time?
- Sample orders are welcome. Common models are in stock and usually ship within 7–15 days, depending on order quantity and customization requirements.
- How long is the warranty?
- A 10-year warranty applies under normal operating conditions, with long-term technical support and spare parts (filter elements, seals) supply.
- Which countries do you export to?
- We export to Indonesia, Thailand, Malaysia, Vietnam, UAE, Saudi Arabia, Egypt, Canada, the USA and more, with worldwide shipping and customs documents (CO, Form E, etc.).
- How can I get a quotation?
- Contact us via WhatsApp +86 156 9085 1323 or export@meijucs.com with your flow rate (m³/h), water source and pipe size; we reply with a quotation and selection proposal within 24 hours.
The HJLYGL 3" two-channel cooling water side-stream filtration unit is a bypass filtration solution developed by Henan Haojun Agricultural Technology Co., Ltd. for HVAC and industrial circulating water systems. It combines a hydrocyclone sand separator with a 3" two-channel fully automatic backwash disc filter system, treating 1%-5% of the total circulation flow to continuously remove impurities without interrupting the main system.
【Product Features】
1. Two-stage purification: the hydrocyclone separates larger sand particles by centrifugal settlement first, then the disc filter units perform three-dimensional deep fine filtration
2. Fully automatic operation: professional backwash controller with pressure-difference sensing, timed start and manual start; backwashing without interrupting filtration
3. Protects heat exchange equipment: continuously removes sand, rust and biofilm, preventing heat exchanger fouling and clogging
4. Energy saving: reduces fouling coefficient and operating load, cutting energy and chemical consumption
5. Compact modular design: 3" two-channel standard skid, small footprint, capacity expandable on demand
6. Optional materials: engineering plastic / carbon steel / stainless steel for different water quality and working conditions
【Technical Parameters】
- Model: HJLYGL 3" two-channel series
- Configuration: hydrocyclone sand separator + automatic backwash disc filter units
- Inlet/outlet: 3"
- Channels: 2
- Flow per unit: 20-40 m³/h
- Total flow: 40-80 m³/h
- Filtration precision: 40-300 mesh optional
- Max working pressure: 10 Bar
- Control: pressure-difference / timer / manual
- Power supply: 24V AC / 12V DC
- Material: engineering plastic / carbon steel / stainless steel (customizable)
【Application】
Suitable for central AC cooling water systems, industrial cooling circulating water systems, cooling towers and heat exchange stations. Effectively treats municipal make-up water, surface water and other sources, preventing heat exchanger, pipeline and nozzle clogging and extending equipment life.