HJLYGL C-Type Combined Air Valve (2")

HJLYGL C-Type Combined Air Valve (2")

HJLYGL C-Type Combined Air Valve (2") combines rapid air intake/exhaust and micro air release functions in one unit for comprehensive pipeline protection. Esse...

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.
HJLYGL C-type combined air valve (2 inches) is a high-quality agricultural irrigation equipment produced by Henan Haojun Agricultural Technology Co., Ltd. and is widely used in various water-saving irrigation projects. 【Product Features】 1. Combined function: Integrating dynamic rapid intake and exhaust and trace exhaust into one 2. Protect the pipeline: quickly exhaust air when the system is filled with water, and quickly intake air when emptying to prevent negative pressure. 3. Trace exhaust: Automatically discharge trace amounts of air accumulated in the pipe during operation. 4. Low pressure sealing: reliable sealing under low pressure to prevent water leakage 5. Insect-proof design: Equipped with insect-proof net to prevent insects from entering and damaging the seal. 【Technical parameters】 - Specifications: 2 inches (DN50) BSP - Interface: external thread - Material: Reinforced nylon - Working pressure: 0.2-10 Bar - Micro exhaust port: 12.2 mm² - Powered quick intake and exhaust ports: 1590 mm² - Quantity per box: 12 pieces 【Application fields】 Installed at the high points and raised parts of the irrigation pipeline, it automatically discharges the air in the pipeline, prevents air blockage and water hammer, and protects the safe operation of the pipeline system. Henan Haojun Agricultural Technology Co., Ltd. has 14 years of experience in exporting irrigation equipment. Its products are exported to Indonesia and many countries in Southeast Asia. The quality is reliable and trustworthy.

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