Low Pressure Filters Overview

Low pressure filters are the most common type of filter in hydraulic circuits, used as return line filters in applications with typcial working pressures up to 150 psi and static pressure up to 300 psi. Donaldson offers flow/pressure combinations to fit most applications. Continuous filtration of bulk fluids through dedicated off-line circuits or kidney loops helps keep fuel, oil and lubricants clean.

	SP15/25 –Economical Spin-on, low flow Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 300 psi / 2070 kPa / 20.7 bar Flow Range up to 30 gpm / 114 lpm SYNTEQ®, Cellulose, Wiremesh and Water Removal media choices. SP15/25 specs
	HBK05 – In-line Spin-on, moderate flow Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 250 psi / 1724 kPa / 17.2 bar Flow Range up to 60 gpm / 227 lpm With its heavy-duty steel bowl and SYNTEQ media, the HBK05 is a popular choice for many industrial applications. HBK05 specs
	SP50/60 – In-line Spin-on, moderate flow Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 250 psi / 1724 kPa / 17.2 bar Flow Range up to 60 gpm / 227 lpm SYNTEQ, Cellulose, Wiremesh and Water Removal media choices. SP50/60 specs
	W021/023 – In-line Spin-on, moderate flow Working Pressures to 200 psi / 1379 kPa / 14 bar Rated Static Pressure to 250 psi / 1724 kPa / 17.2 bar Flow range up to 60 gpm / 227 lpm Gray iron corrosion resistant finish is an excellent choice for high corrosion environments. Use with HBK05 or SP50/60 elements. W021/023 specs
	SP80/90 – Dual Spin-on Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 250 psi / 1724 kPa / 17.2 bar Flow Range: up to 100 gpm / 380 lpm Side by side dual filter configuration, two element lengths. SYNTEQ, Cellulose, Wiremesh and Water Removal media choices. SP80/90 specs
	W022 – Dual Spin-on Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 250 psi / 1724 kPa / 17.2 bar Flow Range up to 120 gpm / 454 lpm Differential pressure ports available Use with HBK05 or SP50/60 elements. W022 specs
	SP100/120 – Dual Spin-on Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 250 psi / 1724 kPa / 17.2 bar Flow Range: up to 100 gpm / 380 lpm Space-saving vertical filter configuration, two element lengths. SYNTEQ, Cellulose, Wiremesh and Water Removal media choices. SP100/120 specs
	TT15/30/60 –Spin-on Tank Top Return Filter Working Pressures to 100 psi / 690 kPa / 6.9 bar Rated Static Pressure to 150 psi / 1030 kPa / 10.3 bar Flow Range: up to 50 gpm / 189 lpm Cellulose media, convenient tank top mounting. TT15/30/60 specs
	TI25 – Tank Immersed Filter, moderate flow Working Pressures up to 100 psi / 690 kPa / 6.9 bar Flow Range: up to 60 gpm / 227 lpm Variety of media choices for 9” (229 mm) elements. Steel bowl, Buna-N seals standard. TI25 specs
	WL15 - In-Tank Filter, moderate flow Working Pressures up to 200 psi / 1379 kPa / 14 bar Rated Static Pressure to 300 psi / 2068 kPa / 21 bar Flow Range up to 50 gpm / 189 lpm Uses 9” DT-HF4 elements. WL15 specs
	WL16 - In-Tank Filter, high flow Working Pressures up to 200 psi / 1379 kPa / 14 bar Rated Static Pressure to 300 psi / 2068 kPa / 21 bar Flow Range up to 150 gpm / 570 lpm Optional secondary inlet port Uses 9”, 18” or 27” DT-HF4 elements WL16 specs
	WL18 - In-Tank Filter, high flow Working Pressures up to 200 psi / 1379 kPa / 14 bar Rated Static Pressure to 300 psi / 2068 kPa / 21 bar Flow Range up to 200 gpm / 760 lpm Optional secondary inlet port 18” length available WL18 specs
	FIK – In-Tank Filter, low to high flow Working Pressures up to 145 psi / 1000 kPa / 10 bar Rated Static Pressure to 217 psi / 1500 kPa / 15 bar Flow Range: from 10 gpm to 211 gpm / 800 lpm FIK-low-flow filters are economical models with screw-on caps, ideal for in-tank applications. The head and inlet sit above the reservoir, with the housing inside. FIK specs
	FIK04 – Combination Suction/Return Working Pressures up to 145 psi / 1000 kPa / 10 bar Rated Static Pressure to 217 psi / 1500 kPa / 15 bar Flow Range up to 79 gpm / 300 lpm The FIK04 is a popular choice for hydrostatic transmissions. It simplifies the circuit by eliminating the need for two separate filters. FIK04 specs
	HDK06 – higher pressure, moderate flow Working Pressures to 350 psi / 2413 kPa / 24.1 bar Rated Static Pressure to 500 psi / 3448 kPa / 34.5 bar Flow Range: up to 150 gpm / 568 lpm Choose from a range of SYNTEQ media or wiremesh to achieve the cleanliness level you need. Element is installed from the top for user convenience. HDK06 specs
	HFK08 – Higher pressure, higher flow Working Pressures to 350 psi / 2413 kPa / 24.1 bar Rated Static Pressure to 500 psi / 3448 kPa / 34.5 bar Flow Range: up to 300 gpm / 1136 lpm Sturdy, versatile. Available in both in-line and in-tank styles. SYNTEQ and wiremesh media options, inside-to-outside element flow and a single center retention bolt for simplified servicing. HFK08 specs Bulk Oil Filtration Story
	HRK10 – Low pressure, high flow Working Pressures to 150 psi / 1034 kPa / 10.3 bar Rated Static Pressure to 500 psi / 3448 kPa / 34.4 bar Flow Range: up to 300 gpm / 1136 lpm HRK10 features include rugged all-steel construction, Donaldson’s proprietary Synteq filter media and unique multi-valve bypass design for superior operating performance. HRK10 specs Customer Success Story – Paper Mill
	W041 - In-Line Hydraulic Filter Working Pressures to 500 psi / 34.5 bar Rated Static Pressure to 1500 psi max / 103 bar Flow Range to 300 gpm / 1135 lpm Uses DT-8300 filter elements W041 specs
	W042 - In-Line Duplex Hydraulic Filter Working Pressures to 400 psi / 27.6 bar Rated Static Pressure to 1500 psi max / 103.4 bar Flow Range to 300 gpm / 1135 lpm Uses DT-8300 filter elements W042 specs

Browse the catalog
View low pressure filter products in our catalog.