High Pressure Filters

High Pressure Filters
High Pressure Filters
High Pressure Filters
High Pressure Filters
High Pressure Filters
High Pressure Filters
High Pressure Filters
High Pressure Filters
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Huilong PHA series high pressure filters are designed for filtration of oil and other fluids in high pressure hydraulic piping system. The filter head is made by ductile iron and the base is made by carbon structural steel to efficiently remove the solid contaminants in hydraulic fluids. Different filter materials are available according to the application requirements. The differential pressure indicator and bypass valve are optional upon request. A reverse flow bypass check valve can be mounted to enable a bidirectional flow of fluid and protect the system against contamination.

The high pressure filter features high filtration rating, high dirt holding capacity, low resistance to flow (i.e. low pressure drop), high filtration efficiency and high filtration ratio (β≥1000), ideal for applications in high pressure industrial equipment.

The clogging indicator measures the pressure drop across the filter element. The device actuates and outputs electrical warning signal when the clogging of the filter element reaches the pre-set warning pressure drop, reminding you to replace the filter element. If the filter element hasn’t been replaced, once the differential pressure reaches the opening pressure of the bypass valve, it will open and allow the unfiltered fluid to flow through to the downstream system.

Technical Specifications
  • Operating pressure: Max. 42MPa
  • Operating temperature: -25℃~120℃
  • Actuating pressure of clogging indicator: 0.5MPa
  • Opening pressure of bypass valve: 0.6MPa
  • Filter head: ductile iron
  • Filter base: carbon structural steel
Filter Type A H H1 H2 L L1 L2 B G Weight (kg)
PHA 020... G1/2   NPT1/2   M22×1.5
G3/4   NPT3/4    M27×2
208 165 142 85 46 12.5 M8 100 4.4
PHA 030... 238 195 172 4.6
PHA 060...338 295 272 5.2
PHA 110... G3/4    NPT3/4    M27×2   
G1    NPT1    M33×2
269 226 193 107 65 M86.6
PHA 160... 360 317 284 8.2
PHA 240... G1    NPT1    M33×2   
G1    1/4    NPT1/4    M42×2   
G1    1/2   NPT1 1/2   M48×2
287 244 200 143 77 43 M10 11
PHA 330... 379 336 292 13.9
PHA 420... 499 456 412 18.4
PHA 660... 600 557 513 22.1
Dimensions of inlet/outlet connection flange (For PHA110...~PHA660...)
Filter Type A P Q C T Max pressure
PHA110... F1 3/4" 50.8 23.8 M10 14 42MPa
PHA160... F2 1" 52.4 26.2 M10 14 42MPa
PHA240... F3 1 1/4" 66.7 31.8 M14 19 42MPa
PHA330...
PHA420... F4 1 1/2" 70 35.7 M12 19 42MPa
PHA660...
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