Hydraulic Filtration
Cellulose Filter Element Specifications:
■Rated at Bx = 2
■Elements available in standard grades of 5, 10,20 and 40 microns
■Designed to withstand 150 & 300 PSID collapse pressure ratings
Note: 300 PSID cellulose elements may require co-pleated mesh support screen for additional rigidity
Micro Fiber Filter Element Specifications:
■Designed to provide Bx(c)=1000 filtration efficiencies (ISO 16889) at 2.5, 5, 7, 12 and 22 microns with a minimum Bx=200 (ISO 4572) at 1, 3, 6, 12 and 25 micron ratings
■Designed to withstand from 150 PSID to 3250 PSID collapse pressure ratings.
■For maximum element durability and long lifecycles, elements can be co-pleated with support layers, including
— Polymer mesh
— Annealed epoxy-coated steel wire
— Stainless steel wire cloth
Stainless Steel consists of stainless steel wire cloth strands woven in various mesh patterns to form absolute as well as nominal filtration ratings. With wire cloth, there are different construction options for filter elements:
■ Epoxy-bonded Construction
■ Crimped Construction (for Industrial Process Cartridges)
■ All Welded Construction
■ Metal Felt Filter Elements (Nonwoven Stainless Steel Fabric)
Cleanability of Stainless Steel Filter Elements
Stainless steel wire cloth elements are idea for hostile or severe environments and applications. That is why cleanability is so important. All wire cloth stainless steel filter elements are easily restored back into service by back flushing, ultrasonic or other non-abrasive cleaning techniques. When used in filtration applications involving hazardous fluids, the cleanability of stainless filter elements can significantly reduce disposal costs
SIF Replacement Hydraulic elements are ISO 9001:2008 CERTIFIED.
SIF supplies replacement filter elements that provide "will fit" and "will function" interchangeability.
Metal Felt Filter Element Specifications
Metal felt filter elements have a random matrix of 316-L stainless steel filaments with diameters from 4 to 25 microns. The finer the micron, the more open area is provided in a pure crosshatch pattern. When sinter bonded, this random matrix can provide:
■Extremely high porosity (up to 85%)
- high flow rates: up to 20 times higher than other media types
- long on-stream lifetime
- downscaling is possible (less filter surface is needed to filter the same volume)
■Low pressure drop: The high porosity of metal fiber media allows a very low pressure drop (and thus lower energy cost), even at high filtration velocities
■Ease of cleaning: The open structure of porous metal media allows you to clean in situ by backpulsing or backwashing
■High strength: The sintering process creates strong fiber bonds and guarantees a high strength filter medium. Combined with an appropriate inner core, filter elements can withstand thermal shock, high pressures, and frequent backpulsing.
■Heat & corrosion resistance: Felt filter media can be used in high temperature (up to 1000° C, depending on the alloy) and/or corrosive applications - where non-metallic textile, ceramic or polymer products fail
■Can be used for surface or depth filtration. Felt filter media enables you to achieve high efficiencies through a cake build-up (surface filtration) and also offer high dirt holding capacity for depth particles capture (depth filtration)
■Stainless steel and other alloys available: not brittle, chemical cleaning is possible, weldable, low thermal expansion, maintains structure (no thermal shock) Depending on the performance you require, Our Manufacturer selects the proper alloy to provide the required resistance and strength
For filtration, the absolute filter ratings are:
■for liquids — 1 to 80 µm
■for air & gases — below 0.1 µm is possible (HEPA, ULPA