LY 38/25 Lubricating Oil Parallel Multimantle Filter Element
Product Overview
FiltraMate LY 38/25 Multimantle Filter Element is high-quality, all-metal filter elements designed as alternatives to Boll & Kirch multimantle filter elements for hydraulic oil and lubrication oil filtration.
These filter elements feature a multi-layer, parallel-arranged filtration structure, providing a large effective filtration area within a compact design.
Depending on the configuration, they are available in single-mantle cross-shaped designs and multi-mantle designs with 2 to 8 concentric filter layers. They are typically installed in duplex oil filters and widely used in turbine lubrication systems, coal mill lubrication stations, and other industrial oil filtration systems.
Our replacement multimantle filter elements are suitable for power generation, oil and gas, chemical processing, metallurgy, cement production, marine applications, and other industries requiring reliable oil filtration.

Key Features
- OEM-Compatible Replacement: Designed to replace corresponding Boll & Kirch multimantle filter elements.
- All-Metal Construction: Durable stainless steel filter media and metal supporting components.
- Multi-Mantle Design: Available in single-mantle and 2–8 mantle configurations.
- Large Filtration Area: Parallel-arranged filter layers provide an increased effective filtration area.
- Precision Filtration: Filtration ratings from 20 to 60 μm.
- Reliable Construction: Welded filter media seams help prevent unfiltered oil bypass.
- Custom Manufacturing: Available in different dimensions, materials, filtration ratings, and structural configurations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Multimantle Filter Element |
| Replacement Brand | Boll & Kirch |
| Filter Type | All-Metal Multimantle Filter Element |
| Operating Temperature | -10°C to +100°C |
| Filtration Rating | 20–60 μm |
| Filter Media | SS304 Stainless Steel Wire Mesh |
| Mesh Type | Square Woven Wire Mesh / Dutch Weave Wire Mesh |
| Structure | Single Mantle / 2–8 Mantles |
| Filter Media Design | Flat or Pleated |
| Applicable Fluids | Hydraulic Oil, Lubricating Oil |
| Typical Installation | Duplex Oil Filter Systems |
| Customization | Available |
Materials and Manufacturing Process
1. End Caps
- Materials: SS304 stainless steel, aluminum, or tin
- Manufacturing: Machining or casting
- Surface Treatment: Cleaning, zinc plating, or anodizing, depending on material
2. Supporting Core
- Materials: SS304 stainless steel or carbon steel
- Perforation Types: Square holes or round holes
- Surface Treatment: Cleaning, zinc plating, or electropolishing
3. Filter Media
- Material: SS304 stainless steel wire mesh
- Mesh Types: Square woven wire mesh or Dutch weave wire mesh
- Configuration: Flat or pleated filter layers
- Seam Joining: Roller seam welding or overlap welding
4. Multi-Mantle Configuration
- Single-mantle cross-shaped design
- Multi-mantle construction with 2–8 filter layers
- Equal-height or progressively decreasing-height configurations from the outer mantle to the inner mantle

Quality Control
At FiltraMate, strict quality control procedures are implemented throughout the manufacturing process to ensure consistent product quality and reliable filtration performance.
1. Stainless Steel Filter Media Inspection
Each batch of stainless steel wire mesh is inspected for material grade, wire diameter, and broken wires to ensure the quality and consistency of the filter media.
2. Welded Filter Media Seams
Filter media seams are joined using seam welding rather than relying on unwelded overlaps. This helps prevent oil bypass and maintains filtration integrity.
3. Zinc Plating Inspection
For zinc-plated components, coating thickness and surface appearance are inspected to ensure consistent plating quality and corrosion protection.
4. Adhesive Application
High-quality, two-component epoxy resin adhesive is applied using automatic mixing and dispensing equipment to ensure accurate dosing and consistent bonding.
5. Cleanliness Control
Stainless steel supporting components undergo ultrasonic cleaning before assembly. Finished filter elements are assembled in a clean, dust-controlled workshop to minimize contamination.
Applications
FiltraMate replacement Boll & Kirch multimantle filter elements are widely used in industrial hydraulic and lubrication oil filtration systems.
Power Generation
- Steam turbine lubrication systems
- Thermal and nuclear power plants
- Boiler auxiliary lubrication systems
Oil & Gas
- Oilfield water injection filtration
- Natural gas filtration
- Hydraulic power unit oil filtration
Chemical Industry
- Process fluid filtration
- Chemical product separation and recovery
Metallurgy
- Steel rolling mill hydraulic systems
- Continuous casting equipment
- Industrial lubrication oil filtration
Cement Industry
- Vertical coal mill lubrication systems
- Cement plant oil purification systems
Marine Industry
- Marine engine lubrication systems
- Shipboard hydraulic and lubrication oil filtration
Why Choose FiltraMate?
With over 10 years of experience in industrial filter element manufacturing, FiltraMate provides reliable aftermarket filtration solutions for a wide range of hydraulic and lubrication systems.
Our advantages include:
- Extensive experience in replacement filter element manufacturing
- OEM-compatible dimensions and configurations
- High-quality stainless steel filter media
- Strict manufacturing and quality control
- Custom designs based on drawings, samples, or OEM part numbers
- Competitive factory-direct pricing
- Worldwide shipping
Looking for a reliable alternative to Boll & Kirch multimantle filter elements?
Contact FiltraMate with your OEM part numbers, technical drawings, or samples. Our team will help you find a suitable replacement filter element for your application.
Expanded models
SLQ 0.5X25 SLQ 05X25
LY 15/25

