Sintered Felt

High-Porosity Metal Fiber Filtration Media for Demanding Applications

Sintered Felt Operates Under 600 °C Conditions for A Long Period

Sintered felt is made of stainless steel, FeCrAl, titanium, nickel and other metal fibers with a diameter of micro rating by sintering at high temperatures and welding after special non-woven laying and laminating.

Multilayer sintered felt is composed of different pore size layers to form a gradient and deliver higher porosity, permeability, filter rating and dirt holding capacity than single-layer sintered felt. Sintered mesh often acts as the main filtration layer in filtration applications and works with woven mesh as the protection layer. It can be pleated to increase the filter area and improve the filtration efficiency.

Filter Fineness of Sintered Felts

Range of Filter Ratings: Sintered metal felts offer a comprehensive spectrum of filter ratings to cater to diverse filtration needs, ranging from coarse to fine grades. Typical filter ratings available include 1 micron, 5 microns, 10 microns, 20 microns, and beyond.
Customization for Specialized Applications:
For more specialized applications requiring finer filtration, manufacturers are equipped to provide custom solutions. These tailored options are designed to meet specific filtration efficiency levels as per the unique requirements of the application.

Properties of Different Materials

Sintered metal fiber felts are made from various metal fibers and can be customized according to specific application requirements. The main materials include:

Stainless Steel: Widely used for its corrosion resistance and durability. 316L, 316, and 304 are commonly selected for their ability to withstand chemical corrosion and high-temperature environments.
Bronze: Renowned for its mechanical strength, thermal conductivity, and corrosion resistance. It is an ideal choice in strongly acidic or alkaline environments where stainless steel is not applicable.
Inconel: A nickel-chromium-based high-temperature alloy. Inconel is famous for its outstanding high-temperature resistance, oxidation resistance, and corrosion resistance, making it ideal for aerospace and high-temperature applications.
Hastelloy: This nickel-based high-temperature alloy is well-known for its excellent corrosion resistance in acidic, chloride, and other corrosive environments.
Copper: Used in applications requiring good electrical and thermal conductivity.Titanium: Valued for its superior corrosion resistance and lightweight properties, titanium is commonly used in aerospace or marine environments where weight is critical.

Product Overview

Sintered Metal Fiber Felt: Designed for robust filtration, this mat combines metal fibers in a sintered form, offering durability and efficiency in industrial filtering applications.
Metallic Fiber Felt: This felt is tailored for high-end filtration, leveraging the strength of metallic fibers to ensure optimal purity in various processing environments
Sintered Fiber Metal Fabric: Ideal for demanding industrial uses, this fabric merges the flexibility of fibers with the resilience of metal, providing a unique solution for filtration and separation.
Metal Fiber Filtration Felt: Specifically crafted for filtration tasks, this felt excels in capturing impurities, combining metal fiber’s precision with felt’s trapping capabilities.
Porous Metal Fiber Mat: This mat features a porous structure, ideal for applications requiring breathable yet strong materials, particularly in filtration and aeration processes.
Sintered Metallic Fiber Media: Designed for high-performance filtering, this media utilizes sintered metallic fibers, offering superior durability and efficiency in fluid and air purification.
Metal Fiber Filter Felt: This felt is engineered for precision filtering, harnessing metal fibers’ strength to provide superior clarity in various liquid and gas filtration applications.
Fiber Metal Sintered Sheet: Combining the robustness of metal with the flexibility of fibers, this sheet is a go-to for industries needing strong yet adaptable filtration materials.
Metal Fiber Sintered Laminate: This laminate offers layered protection and filtration, ideal for complex industrial processes requiring both strength and fine particulate trapping.
Sintered Fiber Mesh Felt: Mesh-like in design, this felt is perfect for applications needing a blend of air flow and filtration, utilizing sintered fibers for enhanced performance.

Sintered Felts Key Features

Elevated Porosity Levels: Ranging from 70% to 95%, the sintered metal fiber felt facilitates superior filtration and fluid distribution, all while minimizing pressure loss.
Network of Interlinked Pores: Resulting from the sintering technique, this felt features a three-dimensional web of interconnected pores, enhancing the movement of fluids and gases.
Consistent Pore Distribution: Uniformity in pore size throughout the felt is a hallmark of its manufacturing, leading to dependable filtration efficiency and performance.
Adaptability to Temperature Extremes: Tailored through material selection, certain variants of this felt are capable of enduring exceptionally high temperatures.
Resistance to Chemicals: The careful choice of metal fibers ensures suitability for use with a broad range of corrosive agents.
Optimal Filtration Capability: The felt’s finely-sized and uniform pores excel in effectively trapping and holding solid particles, marking it as a highly efficient filter medium.
Structural Strength in Porous Form: Despite its porous nature, the sintered metal fiber felt exhibits substantial mechanical robustness, equipping it to withstand significant pressure and mechanical forces.

Specifications

Table 1 : SS Sintered Felt Specifications

Absolute Filter Rating	Bubble Point Pressure	Air Permeability	Porosity	Dirt Holding Capacity	Thickness	Breaking Strength
μm	Pa (±8%)	L/min/dm2 (±10%)	(±5%)	mg/cm2(±10%)	mm (±10%)	MPa (±10%)
5	6800	47	75	5	0.3	32
7	5200	63	76	6.5	0.3	36
10	3700	105	77	7.6	0.37	32
15	2600	205	80	8	0.4	23
20	1950	280	81	15.5	0.48	23
25	1560	355	80	18.4	0.62	20
30	1300	520	80	25	0.63	23
40	975	670	78	25.9	0.68	26
60	650	1300	87	35.7	0.62	28

Table 2 : High-Pressure Type Sintered Felt Specifications

Rating (μm)	Bubble Point Pressure	Air Permeability	Porosity	Dirt Holding Capacity	Thickness	Breaking Strength
-	Pa	L/min/dm2	%	mg/cm2	mm	MPa
20	2050	280	82	18	0.68	33×+20%
25	1500	350	80	20	0.66	30×+20%
30	1240	500	78	27	0.61	32×+20%
40	960	650	78	35	0.61	36×+20%