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Hydraulic Tank Air Filter: Designed for industrial hydraulic equipment that requires high fluid cleanliness

Name: Hydraulic Tank Air Filter: Designed for industrial hydraulic equipment that requires high fluid cleanliness
Brand: We are MEISON, the international sales department of Dongxu Hydra
Price: 330 USD
Availability: InStock

Component Type: Hydraulic Tank Air Filter (Air Breather)
Filter Rating: 3 μm, 5 μm, 10 μm, 20 μm
Rated Pressure: Atmospheric pressure (0 MPa)
Material: Engineering plastics, aluminum alloy, carbon steel
Installation Method: Threaded mounting on top of the tank
Connection Type: Standard threaded connections (e.g., G1/2, G3/4, G1, M27×1.5, etc.)

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Description

Product Description
The hydraulic tank air filter is a venting device installed on top of the tank. It filters impurities from the outside air during the tank’s breathing process while preventing dust and moisture from entering the fluid and contaminating the system.
It also serves as a filter during refueling. Some models feature a lock and moisture-absorbing capabilities, providing both safety protection and moisture prevention.

Product size drawing

Model	D（mm）	D1（mm）	D2（mm）	D3（mm）	L（mm）	L1（mm）	Mounting Screw	Φ (hole)
QUQ1	φ41.3	φ50	φ44	φ28	82	134	3 — M4 × 16	φ4.5
QUQ2	φ73	φ83	φ76	φ48	98	159	6 — M4 × 8
QUQ2b	φ88	φ97	φ76	φ48	98	159	6 — M4 × 8
QUQ2.5	φ110	φ123	φ113	φ76	150	239	6 — M4 × 8
QUQ2.5A	φ96	φ114	φ90	φ76	192	241	4 — M8 × 12	φ9
QUQ2.5B	φ105	φ123	φ90	φ80	185	237	4 — M8 × 12	φ9
QUQ3	φ145	φ160	φ150	φ89	195	320	6 — M4 × 12	φ4.5
QUQ4	φ250	φ280	φ256	φ153	254	379	6 — M10 × 20	φ11
QUQ5	φ280	φ320	φ295	φ197	270	395	6 — M12 × 20	φ13

Hydraulic air filter with lock

Model	Nominal Diameter (mm)	H	D	D1	D2	d	L1	Bolts (evenly spaced)
SAF-50A	50	199	φ56	φ90	φ100	φ67	2.5	6-M4×16
SAF-65A	65	235	φ68	φ105	φ123	φ69	2	4-M8×16

Key Features

Effectively filters air impurities entering the oil tank, prevents external contaminants from entering, and maintains oil cleanliness.
Some models feature built-in moisture absorption capabilities, which can absorb moisture from the air to prevent oil emulsification and degradation.
An optional lockable design is available to prevent accidental opening of the tank lid and ensure equipment safety.
Installation and maintenance are convenient; replacing the filter element or desiccant does not require disassembling the tank, resulting in low costs.

Application

The tops of hydraulic oil tanks in various types of hydraulic power units, machine tools, and injection molding machines.
Hydraulic system tanks in construction machinery, mining machinery, and metallurgical equipment.
Industrial hydraulic equipment with requirements for fluid cleanliness and moisture protection.

Packaging & Delivery

Secure Industrial Packaging: Each filter unit is sealed in protective, moisture-resistant packaging to ensure filter media integrity upon arrival.
Global Fulfillment: Factory-direct dispatch with optimized logistics chains, ensuring timely delivery to your industrial sites worldwide.
Installation Ready: Precision-manufactured to match standard hydraulic connection patterns for a fast and reliable installation.

Certification & Quality Assurance

Quality Excellence: Manufactured under strict ISO9001 quality management standards, ensuring consistent filtration efficiency.
Operational Longevity: Designed for high-cycle industrial service, protecting equipment investments for 10+ years.
Integrity Testing: Every filter housing undergoes pressure-testing to ensure zero-leakage performance under normal operating pressures.

The MEISON Advantage

Factory-Direct Expertise: "Factory-Direct Expertise. Professionally Curated." — 20+ years of hydraulic manufacturing leadership.
Global Trusted Partner: Over 1,000,000 units sold to 6,000+ satisfied customers worldwide.
Innovation & R&D: 60+ technical patents support our commitment to high-performance, precision-engineered hydraulic components.
Cinematic Industrial Image: Our design focus on technical authority and professional aesthetics helps you build immediate, long-lasting trust with B2B buyers.

Product FAQ

How often should the filter element be replaced?
A: Replacement frequency depends on your system's duty cycle and fluid cleanliness levels. We recommend replacing elements based on the differential pressure indicator or during routine maintenance intervals (e.g., every 500-1000 operational hours).

Can I use different filtration ratings?
A: Yes, we offer various filter element ratings (e.g., 5μm, 10μm, 20μm) to suit the specific cleanliness requirements of your valves and pumps.

Are the filter elements compatible with synthetic hydraulic fluids?
A: The standard filter media is compatible with most mineral oils. For specialized fire-resistant fluids, please consult our engineering team for custom element material options.

FAQs

（Frequently Asked Questions）

You are manufacturer or trading company?

We are a direct manufacturer, Dongxu Hydraulic Machinery Co., Ltd.
This means you get the most competitive factory price and direct technical support. There are no middlemen or traders involved. You are welcome to visit our factory at any time.

Can I have OEM service and put my logo on products or packaging?

Yes, OEM service is available. We offer customized solutions including brand logo printing, custom color painting, special thread types (G/BSPT/NPT), and SAE flange connections. Your brand identity is respected .

What is the lead time for this model?

It depends on the quantity. Shipment typically occurs within 10–15 business days after order confirmation. For large OEM orders, please contact us for confirmation.

What warranty services do you offer?

We offer a 12-month comprehensive warranty. In addition, we provide extended warranty and maintenance packages.

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Hydraulic Tank Air Filter: Designed for industrial hydraulic equipment that requires high fluid cleanliness

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