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Suction line filters are used to protect the pump in a hydraulic circuit from contaminant that finds its way into the hydraulic oil reservoir. Commonly they are located inside the tank & are screwed onto a hose or boss leading to the inlet port of the pump. Manufactured from a single pleated wire mesh of usually 125 micron size, with thread sizes from ¼” to 3” and flow rates up to 400 l/min. Suction strainers are primarily used to stop larger erroneous particles or items such as nuts & bolts that may accidentally have fallen into the hydraulic power pack reservoir from damaging or destroying the pump.
The issue with fitting this type of filter is that when housed inside the tank it is not possible to monitor its condition as it filters out contaminant. Left unguarded a suction strainer will eventually become so blocked that it starves the pump of fluid, causing cavitation to occur in the inlet line & subsequent damage to and failure of the pump. If the hydraulic reservoir is clean to begin with & the oil in the return line is filtered correctly then suction filters should not be required as the fluid will not contain any particles large enough to be caught by the coarse wire mesh of the strainer. Therefore, it is recommended that if suction strainers are used then they should be monitored regularly with good maintenance procedures in place to avoid this situation.
Alternatively, it is possible to fit an in-line filter in the suction line of the system. Fitted with a removable spin-on element and a wider range of micron rating options it utilises a low pressure by-pass & either visual or electrical indicator to offer more efficient control when protecting the pump.
Hydraproducts has a large stock holding of components we are able to support irregular customer requirements. If you have regular needs then we are happy to hold bonded stock to smooth out production/supply fluctuations.
Supporting our customers with the comfort that our engineers have been using these components to build hydraulic systems in our own workshops for over 15 years. Our Technical Sales engineers can help and advise on product choice as well as identifiy and cross reference a wide variety of other hydraulic equipment manufacturers.
OMT - Based in Italy, OMT has become a world recognized manufacturer of Hydraulic components. A recent acquisition of Luen, Hydraulic cartridge Valve manufacturer, has strengthened the group within mobile and industrial markets.
OT - With a engineering pedigree in Italian gear pump manufacturing, this company produces some the of the finest Aluminium hydraulic Gear pumps available today. They are customer focused with a very reactive production philosophy.
TEC - Tec motors have become the largest reseller of AC induction motors in the UK. Hydraproducts has fitted the TEC (TECHTOP) motors to our power packs and power units for over 15 years, so we know the quality is well suited to this market palce.
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