A hydraulic filter is the main component of the filtration system of a hydraulic, lubrication or grease machine. These systems are used to control contamination by solid particles of external origin and those generated internally by wear or erosion processes on the surfaces of the machinery, allowing the useful life of both the equipment components and the hydraulic fluid to be preserved.
Types of hydraulic filters
Depending on the structural complexity of the machine, its operating environment or its importance in the sequence of the production process in which it is integrated, the hydraulic filtration system can be built with filters of different designs and materials located at specific points of the equipment.
Depending on your situation, the design characteristics and nature of each filter may be different in order to respond efficiently to its function, so that the following are distinguished:
Filtration system components
Contenido
En general, los filtros están constituidos por un conjunto formado por:.
En el caso de los strainers, el propio elemento filtrante puede ser el único componente si se sitúa en el extremo de una línea de aspiración, normalmente sumergida en el depósito del fluido.
Filter element l
The location, viscosity characteristic and nature of the fluid, pressure, flow rate or the type of solids to be retained determine the nature of the construction materials and the design of each hydraulic filter and, especially, the medium used for the filter element.
In general, hydraulic filter elements use synthetic materials to form a deep filter media formed by resistant cross-linked fibers that trap particles by locking or adhesion mechanisms, designed with a folded geometry to optimize the maximum filter media in the smallest possible space. These types of filters do not allow regeneration and must be replaced once they become clogged.
Hydraulic filters
Introduction
A hydraulic filter is the main component of the filtration system of a hydraulic, lubrication or grease machine. These systems are used to control contamination by solid particles of external origin and those generated internally by wear or erosion processes on the surfaces of the machinery, allowing the useful life of both the equipment components and the hydraulic fluid to be preserved.
Types of hydraulic filters
Depending on the structural complexity of the machine, its operating environment or its importance in the sequence of the production process in which it is integrated, the hydraulic filtration system can be built with filters of different designs and materials located at specific points of the equipment.
Depending on your situation, the design characteristics and nature of each filter may be different in order to respond efficiently to its function, so that the following are distinguished:
Filtration system components
Contenido
En general, los filtros están constituidos por un conjunto formado por:.
En el caso de los strainers, el propio elemento filtrante puede ser el único componente si se sitúa en el extremo de una línea de aspiración, normalmente sumergida en el depósito del fluido.
Filter element l
The location, viscosity characteristic and nature of the fluid, pressure, flow rate or the type of solids to be retained determine the nature of the construction materials and the design of each hydraulic filter and, especially, the medium used for the filter element.
In general, hydraulic filter elements use synthetic materials to form a deep filter media formed by resistant cross-linked fibers that trap particles by locking or adhesion mechanisms, designed with a folded geometry to optimize the maximum filter media in the smallest possible space. These types of filters do not allow regeneration and must be replaced once they become clogged.
Metallic filter media have lower resistance or pressure loss in high viscosity fluids and allow them to be reused after some regeneration or cleaning process, although their performance and effectiveness progressively decrease.
Another frequently used material is that used for media based on paper fibers or reinforced cellulose, which represent a lower cost but are less effective than synthetic ones.
In addition to the filter medium, different materials are used to build the filter core, around which the medium is developed, support and reinforcement layers to increase its resistance or dynamic properties or the enclosure that protects it from deformation.
The gaskets or seats ensure the necessary adjustment of the filter to its housing or container in order to ensure maximum tightness of the device.
Housing
In pressure, return or recirculation filters, the filter housing consists of a head permanently connected to the fluid conduction lines in the circuit. Inside, the head can house a bypass valve that allows the free passage of fluid in case of clogging of the filter element. The filter bowl is another component of the housing and houses the body of the filter element. If installed in a T configuration and vertical upward position, the bucket is closed at its end by a lid while in an L configuration, as in the case of return filters immersed in the tank, the element can be accessed through a lid adapted to the head of the filter. In certain so-called spin-on models, common to automotive engines, the bucket is also a disposable component as it contains the filter medium itself.
Control device
Through internal channels that come into contact with the fluid at the entrance and exit of the system, the saturation control device is installed in the head by measuring the differential pressure. The mission of the device is to warn when the filter element needs to be replaced, since as the retention of solids increases, the pressure loss increases.
These devices can range from a simple pressure gauge to electronic sets that record pressure variation over time.
Valves
The system is completed by various valves or keys that allow the filter to be isolated for maintenance or to prevent the effects associated with pressure variations. The by-pass valve, normally housed in the head or the non-return valve, are used to prevent "water hammer." Other valves allow air to be purged or the bucket to be emptied. Additionally, special valves can be included for fluid sampling.
Filtration specifications
Various international standards specify the construction or design characteristics related to hydraulic filtration systems:
Find more "Hydraulic filters" in the following countries:
Metallic filter media have lower resistance or pressure loss in high viscosity fluids and allow them to be reused after some regeneration or cleaning process, although their performance and effectiveness progressively decrease.
Another frequently used material is that used for media based on paper fibers or reinforced cellulose, which represent a lower cost but are less effective than synthetic ones.
In addition to the filter medium, different materials are used to build the filter core, around which the medium is developed, support and reinforcement layers to increase its resistance or dynamic properties or the enclosure that protects it from deformation.
The gaskets or seats ensure the necessary adjustment of the filter to its housing or container in order to ensure maximum tightness of the device.
Housing
In pressure, return or recirculation filters, the filter housing consists of a head permanently connected to the fluid conduction lines in the circuit. Inside, the head can house a bypass valve that allows the free passage of fluid in case of clogging of the filter element. The filter bowl is another component of the housing and houses the body of the filter element. If installed in a T configuration and vertical upward position, the bucket is closed at its end by a lid while in an L configuration, as in the case of return filters immersed in the tank, the element can be accessed through a lid adapted to the head of the filter. In certain so-called spin-on models, common to automotive engines, the bucket is also a disposable component as it contains the filter medium itself.
Control device
Through internal channels that come into contact with the fluid at the entrance and exit of the system, the saturation control device is installed in the head by measuring the differential pressure. The mission of the device is to warn when the filter element needs to be replaced, since as the retention of solids increases, the pressure loss increases.
These devices can range from a simple pressure gauge to electronic sets that record pressure variation over time.
Valves
The system is completed by various valves or keys that allow the filter to be isolated for maintenance or to prevent the effects associated with pressure variations. The by-pass valve, normally housed in the head or the non-return valve, are used to prevent "water hammer." Other valves allow air to be purged or the bucket to be emptied. Additionally, special valves can be included for fluid sampling.
Filtration specifications
Various international standards specify the construction or design characteristics related to hydraulic filtration systems:
Find more "Hydraulic filters" in the following countries: