Taisei Filter P-UL-03 04-20UW Replacement Oil Filters

Products Description

The P-UL-03 04-20UW replace Taisei oil filter is engineered to effectively remove solid particles and colloidal contaminants from hydraulic and lubricating fluids, maintaining fluid cleanliness and protecting downstream hydraulic components — including pumps, valves, cylinders, and servo mechanisms — from contamination-related wear and premature failure.

This replacement filter element is part of the widely used U Series of hydraulic in-line filters — a popular product family known for its ease of maintenance and reliable performance across hydraulic and lubrication systems.

Specifications

Part number	P-UL-03 04-20UW
Filter material	Stainless steel mesh
Filtration rate	20 micron
Working temperature	-30~+100℃
Size	Standard/Requirement
Working pressure	210 bar
Origin	Henan, China
Package	Carton package

Note: As the exact dimensions vary across the UL‑03 and UL‑04 configurations, please reference your specific OEM part number when placing an order — or provide the original filter for direct measurement verification.

Features

Upward Extraction Design for Easy Changeout: The filter element is specifically designed for upward extraction / top-pulling type housings, allowing fast, tool-free element replacement. This minimizes equipment downtime during routine maintenance.

Low Initial Pressure Drop: The pleated design provides maximum effective filtration area relative to element size, reducing flow resistance and ensuring energy‑efficient system operation throughout the filter’s service life.

Durable construction: End caps are securely bonded; inner cores resist collapse under pressure surges.

Long service life: High dirt‑holding capacity means fewer change‑outs and lower maintenance frequency.

Optional Part Number

These are part of the models related to the P-UL-03 04-20UW replace Taisei oil filter. If you have other needs, please contact us to get a quote.

P-AP-12-20U	P-351A-03-60W	P-VN-20,24-200W	P-351A-03-150W	P-UL-06A-40U
P-351A-04-3C	P-351A-04-8C	P-351A-04-25C	P-351A-04-10U	P-351A-04-20U
P-351A-04-40U	P-351A-04-5UW	P-351A-04-10UW	P-351A-04-20UW	P-351A-04-40UW
P-351A-04-50UW	P-351A-04-60W	P-351A-04-100W	P-351A-04-150W	P-351A-04-200W
P-351A-06-3C	P-351A-06-8C	P-351A-06-25C	P-351A-06-10U	P-351A-06-20U
P-351A-06-40U	P-351A-06-5UW	P-351A-06-10UW	P-351A-06-20UW	P-351A-06-40UW
P-351A-06-50UW	P-351A-06-60W	P-351A-06-100W	P-351A-06-150W	P-351A-06-200W
P-351A-08-3C	P-351A-08-8C	P-351A-08-25C	P-351A-08-10U	P-351A-08-20U
P-351A-08-40U	P-351A-08-5UW	P-351A-08-10UW	P-351A-08-20UW	P-351A-08-40UW
P-351A-08-50UW	P-351A-08-60W	P-351A-08-100W	P-351A-08-150W	P-351A-08-200W
P-351A-10-3C	P-351A-10-8C	P-351A-10-25C	P-351A-10-10U	P-351A-10-20U
P-351A-10-40U	P-351A-10-5UW	P-351A-10-10UW	P-351A-10-20UW	P-351A-10-40UW

Manufacturer of Replace Oil Filter: Huahang Filter

Huahang Filter operates a modern production facility covering 26,000 square meters, staffed by more than 70 professional technicians and quality control engineers. Huahang Filter specializes in the design, production, and global supply of hydraulic filters, air filters, sintered metal filters, coalescer elements, separator elements, water filter cartridges, and dust collector filter bags. Huahang’s product lines are deployed across petroleum refining, chemical processing, pharmaceutical production, electric power generation, and aerospace industries.

◊Why Choose Huahang Filter

Engineering Expertise & Technical Support: Huahang’s in‑house R&D team can assist with part number cross‑referencing, material selection, seal compatibility evaluation, and custom element development. With an internal database containing over 300,000 OEM filter cross‑reference part numbers,
Broad Application Areas: Huahang replacement elements are deployed in demanding applications across hydraulics, lubrication, petrochemical, and industrial processing globally, demonstrating reliability, durability, and real‑field performance over extended service intervals.
Cost‑Effective Alternative: By manufacturing direct, Huahang Filter delivers substantial cost savings compared to OEM replacement elements.

Applications

The P-UL-03 04-20UW replacement oil filter element is suitable for a broad range of industrial hydraulic and lubrication applications, including:

Industrial Machinery Hydraulic Systems — Machine tools, presses, injection molding machines, and CNC equipment requiring clean hydraulic fluid for precise control and reliable operation.
Steel & Metallurgy — Hydraulic systems in rolling mills, continuous casting lines, and steel processing equipment, where particulate contamination from extreme operating conditions must be continuously removed.
Power Generation — Turbine lubrication systems, boiler feed pumps, wind turbine gearboxes and pitch control hydraulics, and coal‑fired plant auxiliary hydraulic equipment.
Petrochemical & Refining — Instrumentation hydraulics, compressor lubrication systems, and actuator control circuits in hazardous or explosive atmospheres where reliable filtration is a safety requirement.
Marine Engineering — Steering gear hydraulics, deck machinery controls, and propulsion system lubrication on commercial vessels and offshore platforms.
Construction & Mining Equipment — Heavy‑duty mobile hydraulic systems (excavators, loaders, bulldozers) that operate in dusty environments and require robust contamination control for long equipment life.
Paper & Pulp Manufacturing — Hydraulic systems in paper machines, where continuous operation demands maximum filter reliability and serviceability to avoid costly production interruptions.

FAQ

What is the difference between a standard filter and a custom filter?

Standard filters are mass-produced in fixed sizes and specifications, while custom filters are designed to match specific equipment dimensions, operating conditions, and filtration requirements. Custom filters improve sealing, efficiency, and service life.

How do I select the right filter for my application?

Filter selection depends on fluid or air type, particle size, flow rate, pressure, temperature, and compatibility with the system. Providing operating data helps ensure optimal filtration performance.

Will your replacement filter cartridges damage my equipment? Is the quality guaranteed?

Absolutely not. Our replacement filter cartridges strictly adhere to OEM dimensions, interfaces, and performance standards, using equivalent or superior filter materials, and have passed rigorous ISO testing and end-user validation. We provide a quality guarantee to ensure the safe operation of your equipment.

We don't have a specific model number, only operating condition requirements. Can you help us select a suitable model?

Yes, but you need to provide:

① the filtering medium (oil, gas, water, chemical liquid?);

② flow rate, pressure, and temperature;

③ required filtration accuracy;

④ connection type.

Our technical team will recommend the most economical solution for you.

How can I ensure that this filter element can be adapted to my device/system?

We have multiple ways to ensure compatibility:

Provide original filter element information: Please provide the brand, model, clear photos or detailed dimension drawings of your existing filter element (especially the interface type and size, length, outer diameter, inner diameter).

Provide equipment information: Tell us your equipment brand, model or application scenario, etc.

Contact us: Our technical team has rich experience and can quickly determine or design a fully compatible replacement filter element based on the information you provide. It is recommended that you contact us directly to obtain the most accurate adaptation plan.

How do you ensure the quality and performance of the filter element?

Quality is our lifeline. We insist on:

Strict material selection: Use high-quality raw materials that meet industry standards.

Advanced technology: Use automated or precision-controlled production processes.

Multiple quality inspections: Implement full-process quality inspections from raw material storage to finished product delivery (including size, sealing, filtration efficiency, integrity testing, etc.).

Performance testing: Key products will undergo actual working condition simulation testing.

Compliance with standards: Our production and products comply with [e.g.: ISO 9001].

Customized verification: For customized filter elements, we will confirm key performance indicators with customers and provide test reports (if necessary).

What is a dust collector filter used for?

Dust collector filters remove airborne dust and particulate matter from industrial processes such as welding, grinding, woodworking, and powder handling to protect equipment and improve air quality.

How often should dust collector filter cartridges be replaced?

Replacement depends on dust load, operating hours, and cleaning efficiency. A consistent increase in pressure drop is a common indicator that the filter needs replacement.

Can dust collector filters be cleaned and reused?

Many cartridge filters are designed for pulse-jet cleaning, but they are not permanently reusable. Over time, media fatigue reduces performance and replacement becomes necessary.

What micron rating is best for hydraulic oil filtration?

Common hydraulic filters range from 3 to 25 microns. The optimal rating depends on system sensitivity and manufacturer specifications.

What happens if a hydraulic oil filter is not replaced on time?

Delayed replacement can cause pressure loss, valve sticking, pump wear, and reduced system efficiency, leading to costly downtime.

Where are precision filters commonly used?

Precision filters are widely used in electronics manufacturing, pharmaceuticals, food processing, chemical processing, and high-purity fluid systems.

How does precision filtration affect system performance?

Precision filtration improves product quality, extends equipment life, and reduces unplanned downtime caused by contamination.

What is the difference between a coalescer filter and a separator filter?

They are two distinct technologies often used together to remove liquids from a gas or liquid stream. The key difference is their core function:

A Coalescer Filter merges tiny, invisible liquid droplets into large, heavy ones.

A Separator Filter catches and drains those large droplets from the flow.

How They Work:

Coalescer: The stream passes through a special media (like fine fibers). Microscopic aerosol droplets collide and merge (coalesce) into drops large enough to drain. It solves the problem of suspended mist.

Separator: The flow then enters a chamber with baffles or vanes. The now-large droplets hit the surfaces, fall out by gravity, and collect in a sump. It provides the final, clean separation.

Are stainless steel filter elements washable?

Yes, most stainless steel filter elements can be cleaned using backflushing, ultrasonic cleaning, or chemical cleaning methods.

P-UL-03 04-20UW Replace Taisei Oil Filter

Products Description

Specifications

Features

Optional Part Number

Manufacturer of Replace Oil Filter: Huahang Filter

◊Why Choose Huahang Filter

Applications

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