THE IMPORTANCE OF AN EFFICIENT FILTRATION

Tank mounted return line filters HF 554 series

THE IMPORTANCE OF AN EFFICIENT FILTRATION The main cause of anomalies in hydraulic systems has to be attributed to the presence of contaminants in the fluid. The nature of the contaminant may be: gaseous, namely air mixed with the fluid; fluid, it depends on water penetrating the fluid; solid, therefore particles of various origins and dimensions. Customers who operate equipments are always focused on obtaining the best possible performance, lower energy consumptions and greater respect for the environment. These characteristics can be attained by using top quality components in the hydraulic system for generating and regulating the fluid power, which are also more sensitive to the presence of contaminants in the fluid. Starting from these requirements, we understand how important and fundamental it is to prevent the presence of air and water from mixing in the fluid tank by using dedicated solutions. It is also crucial to limit the presence of solid particles in the hydraulic circuit through a suitable filtering system, which is indispensable to maintain the project requirements of the system over time and to keep running costs low. The correct choice of a filter and its optimum position in the hydraulic system requires the same care and experience needed to choose all the other components. The use of filters with larger filtering surfaces reduces, at equal flow rates, the superficial contaminant load and therefore the filter's life is extended proportionally. To maintain the maximum efficiency of the system, the filters must have a clogging indicator showing the differential pressure on the filtering cartridge and to immediately point out when the cartridge needs replacing in order to prevent the by-pass valve from opening. The following factors should be analysed when choosing the ideal filter: The filtration degree required to protect the most sensitive component from contamination The points of the circuit in which the filters have to be installed The working pressure of the system The maximum flow rate and the type of fluid to be filtered The duty cycle The retention efficiency of the filtering cartridge The contaminant accumulation capacity of the filtering cartridge The working ambient temperature Each filter used generates a pressure drop that increases continuously as time goes by. This pressure drop represents an efficiency index of the filter itself. When the hydraulic system is about to be assembled, all the components must be perfectly clean and the fluid has to be added through a device complete with a filter. During the test phase, it is advisable to run some work cycles at low pressure in order to create the best possible conditions for all the components.

TECHNICAL CHARACTERISTICS The tank mounted filters HF 554 series are specifically designed to be directly connected on the return line of hydraulic circuit to safeguard it from contaminating particles. Working pressure 116 psi (8 bar) Extension on the oil way out of the pipe union Fluid-decelerating diffuser Level dipstick MATERIALS Cover Housing Aluminum Reinforced nylon Anodized aluminum(series 1 and 2) Aluminum (series 3 and 4) Reinforced nylon Bowl Steel Seals Buna - Viton End cap Zinc plated steel Inner tube Zinc plated steel Steel Stainless steel Filter media Cellulose Reinforced cellulose Micro-fibre glass The filters of dimensions 1.6, 1.129, 2.77, 2.122, 2.21, 2.28 and 3.195 are supplied with a nylon-reinforced bowl. Varnished steel bowl is available on request. The filters of dimensions 3.239, 4.122, 4.194, 4.195, 4.239, 4.39 and 4.512 are only supplied with a varnished steel bowl. FLUID COMPATIBILITY Conforming to ISO 2943 (Norm ISO 6743/4) Oli mineral HH - HL - HM - HR - HV - HG Water emulsion HFAE - HFAS Water glycol HFC Syntetic fluid (3) HS - HFDR - HFDU - HFDS With Buna seals (3) With Viton seals Body anodization required BY-PASS VALVE By-pass setting 25 psi (1,7 bar) OPERATING TEMPERATURE With Buna seals -22 195 F (-3 9 C) With Viton seals -4 23 F (-2 11 C) DEGREE OF FILTRATION Absolute Filtration Code Material Degree of filtration FG3 Micro-fibre glass 3 m FG6 Micro-fibre glass 6 m FG1 Micro-fibre glass 1 m FG25 Micro-fibre glass 25 m Nominal Filtration Code Material Degree of filtration SP1 Cellulose 1 m RP1 Reinforced cellulose 1 m SP25 Cellulose 25 m RP25 Reinforced cellulose 25 m MI25 Stainless steel 25 m MI6 Stainless steel 6 m MS9 Steel 9 m MI125 Stainless steel 125 m 1/12.21 FLOW Flow max. PRESSURE Working pressure Testing pressure Burst pressure Element collapse pressure rating (conforming to ISO 2941) 166 US gpm (63 l/min) 116 psi (8 bar) 174 psi (12 bar) 232 psi (16 bar) 145 psi (1 bar) INDICATORS (5) Rear manometer Radial manometer Visual indicator Electrical indicator (5) Characteristics and dimensions at page 25 ICAT7-2 2 1

SIZING PRESSURE DROP The total pressure drop of the filter is calculated by summing the pressure drop value in the housing to the one in the filtering element. Total p p in housing + p in element In filters of HF 554 series in normal working conditions, the total p must not be more than 5.8 psi (,4 bar). To establish the values of pressure drop involved, the following pages provide some diagrams with curves referred to the use of mineral oils SAE 1 with kinematic viscosity of 12 SSU (3 cst) and density of 7.29 lb/gal (,856 kg/dm 3 ). Calculation example Filter HF 554-2.122-AS-FG3-B17-GF-B-S-Z-XN-G-YN-O-K Flow rate= 13 US gpm (5 l/min) Kinematic viscosity: 12 SSU (3 cst) Oil density : 7.29 lb/gal (,856 kg/dm 3 ) Filtering degree: 3 m Data obtained from the diagrams: p in housing = 1.1 psi (,7 bar) (page 4) p in element = 4.64 psi (,32 bar) (page 9) Total p = 1.1 + 4.64 = 5.65 psi (,39 bar) ( p is lower than maximum value admitted therefore sizing is correct). If oil with different kinematic viscosity and different density is used, the values obtained from the diagrams will be re-calculated considering the following indications: 1) The pressure drop of the housing is proportional with the oil density, therefore for oil with density different to 7.29 lb/gal (,856 kg/dm 3 ) the value of the p in the head-bowl will be: p in housing = Or p in housing = p of diagram (psi) Oil density ( lb/gal) 7.29 (lb/gal) p of diagram (bar) Oil density ( kg/dm 3 ),856 (kg/dm 3 ) [psi] [bar] 2) The pressure drop of the element is proportional with the oil density and kinematic viscosity, therefore for oil with density different to 7.29 lb/gal (,856 kg/dm 3 ) and kinematic viscosity different to 12 SSU (3 cst) the value of p in the element will be: p element = p of diagram (psi) Or p element = p of diagram (bar) Oil density (lb/gal) Oil viscosity (SSU) 7.29 (lb/gal) 12 (SSU) Oil density (kg/dm 3 ) Oil viscosity (cst),856 (kg/dm 3 ) 3 (cst) [psi] [bar] 1/12.21 Now you sum the values of the pressure drop of the housing to the value of the pressure drop of the filtering element, always making sure the total p does not exceed the pressure limit of 5.8 psi (,4 bar). 2 2 ICAT7-2

PRESSURE DROP CURVES THROUGH THE BY-PASS VALVES The pressure drop values are directly proportional with the specific weight of the fluid and do not affect the establishment of the total pressure drop of the complete filter. The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HF 554-1 HF 554-2 7, (11.52) 7, (11.52) 6, (87.2) 6, (87.2) 5, (72.51) 5, (72.51) 4, (58.1) 3, (43.51) 4, (58.1) 3, (43.51) 2, (29.) 2, (29.) 1, (14.5) 1, (14.5) 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 2 4 6 8 1 12 14 16 18 2 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) (52.8) HF 554-3 HF 554-4 7, (11.52) 7, (11.52) 6, (87.2) 6, (87.2) 5, (72.51) 5, (72.51) 4, (58.1) 4, (58.1) 1/12.21 3, (43.51) 2, (29.) 3, (43.51) 2, (29.) 1, (14.5) 1, (14.5) 35 (9.2) 7 15 14 175 21 245 28 315 35 (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) (92.5) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) ICAT7-2 2 3

PRESSURE DROP CURVES THROUGH THE HOUSING The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). G 3/8 G 1/2 (3) G 3/4 G1 (5) G 1 1/4 HF 554-1.6 / 1.129 HF 554-2.77 / 2.122,5,5 (3) (5) (3),4 (5.8),4 (5.8),3,3,2 (2.9),2 (2.9),1,1 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 2 4 6 8 1 12 14 16 18 2 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) (52.8) HF 554-2.21 / 2.28,5 (3),4 (5.8) (5),3,2 (2.9),1 1/12.21 2 4 6 8 1 12 14 16 18 2 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) (52.8) 4 2 ICAT7-2

PRESSURE DROP CURVES THROUGH THE HOUSING The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). G1 (5) G 1 1/4 (6) G 1 1/2 (7)G2 HF 554-3.195 / 3.239 HF 554-4.122 / 4.194,5 (5),5 (6) (7),4 (5.8) (6),4 (5.8),3,3,2 (2.9),2 (2.9),1,1 35 (9.2) 7 15 14 175 21 245 28 315 35 (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) (92.5) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) HF 554-4.195 / 4.239 / 4.39 / 4.512,5 (6),4 (5.8) (7),3 1/12.21,2 (2.9),1 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) ICAT7-2 2 5

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-1 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-1.6 HE K2-1.129 FG3 FG6,5,5,4 (5.8),4 (5.8),3,3,2 (2.9),2 (2.9),1,1 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) FG1 FG25,5,5,4 (5.8),4 (5.8),3,3,2 (2.9),1,2 (2.9),1 1/12.21 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 6 2 ICAT7-2

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-1 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-1.6 HE K2-1.129 MI25 MI6,1,1,8 (1.16),8 (1.16),6 (.87),6 (.87),4 (.58),4 (.58),2 (.29),2 (.29) 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) MS9 MI125,1,1,8 (1.16),8 (1.16),6 (.87),6 (.87),4 (.58),2 (.29),4 (.58),2 (.29) 1/12.21 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 1 (2.6) 2 3 (7.9) 4 5 6 7 8 9 1 (1.6) (13.2) (15.8) (18.5) (21.1) (23.8) (26.4) 8 2 ICAT7-2

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-2 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-2.77 HE K2-2.122 (3) HE K2-2.21 HE K2-2.28 FG3 FG6,5 (3),5 (3),4 (5.8),4 (5.8),3,3,2 (2.9),2 (2.9),1,1 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) FG1 FG25,5 (3),5 (3),4 (5.8),4 (5.8),3,3 1/12.21,2 (2.9),1,2 (2.9),1 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) ICAT7-2 2 9

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-2 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-2.77 HE K2-2.122 (3) HE K2-2.21 HE K2-2.28 MI25 MI6,1 (3),1 (3),8 (1.16),8 (1.16),6 (.87),6 (.87),4 (.58),4 (.58),2 (.29),2 (.29) 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) MS9 MI125,1 (3),1,8 (1.16),8 (1.16),6 (.87),6 (.87) (3) 1/12.21,4 (.58),2 (.29),4 (.58),2 (.29) 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) 2 4 6 8 1 12 14 16 18 (1.6) (15.9) (21.1) (26.4) (31.7) (37.) (42.3) (47.6) 2 (52.8) ICAT7-2 2 11

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-3 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-3.195 HE K2-3.239 FG3 FG6,5,5,4 (5.8),4 (5.8),3,3,2 (2.9),2 (2.9),1,1 35 (9.2) 7 (18.5) 15 14 175 21 245 28 315 35 (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) (92.5) 35 (9.2) 7 (18.5) 15 14 175 21 245 28 315 35 (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) (92.5) FG1 FG25,5,5,4 (5.8),4 (5.8),3,3,2 (2.9),1,2 (2.9),1 1/12.21 35 (9.2) 7 (18.5) 15 14 175 21 245 28 31 (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) 35 (92.5) 35 (9.2) 7 15 14 175 21 245 28 (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) 315 (83.2) 35 (92.5) 12 2 ICAT7-2

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-3 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-3.195 HE K2-3.239 MI25 MI6,1,1,8 (1.16),8 (1.16),6 (.87),6 (.87),4 (.58),4 (.58),2 (.29),2 (.29) 35 7 15 14 175 21 245 28 315 35 (9.2) (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) (92.5) 35 (9.2) 7 15 14 175 21 245 28 315 (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) 35 (92.5) MS9 MI125,1,1,8 (1.16),8 (1.16),6 (.87),6 (.87),4 (.58),2 (.29),4 (.58),2 (.29) 1/12.21 35 7 15 14 175 21 245 28 315 35 (9.2) (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) (92.5) 35 (9.2) 7 15 14 175 21 245 28 315 (18.5) (27.7) (37.) (46.9) (55.5) (64.7) (74.) (83.2) 35 (92.5) 14 2 ICAT7-2

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-4 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-4.122 HE K2-4.239 HE K2-4.194 (5) HE K2-4.39 (3) HE K2-4.195 (6) HE K2-4.512 FG3 FG6,5 (2/3),5 (2/3),4 (5.8),4 (5.8),3,3,2 (2.9) (5),2 (2.9) (5),1 (6),1 (6) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4) (184.9) FG1 FG25,5 (2/3),5 (2/3),4 (5.8),4 (5.8),3,3 1/12.21,2 (2.9),1 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) (5) (6) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4) (184.9),2 (2.9),1 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) (5) (6) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4) (184.9) ICAT7-2 2 15

PRESSURE DROP CURVES THROUGH THE ELEMENT HE K2-4 The curves are obtained in the following conditions: Mineral oil type SAE 1 Kinematic viscosity 12 SSU (3 cst) Density 7.29 lb/gal (,856 kg/dm 3 ). HE K2-4.122 HE K2-4.239 HE K2-4.194 (5) HE K2-4.39 (3) HE K2-4.195 (6) HE K2-4.512 MI25 MI6,1 (2/3) (5),1 (2/3),8 (1.16),8 (1.16),6 (.87) (6),6 (.87),4 (.58),4 (.58) (5),2 (.29),2 (.29) (6) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) MS9 MI125,1 (2/3),1,8 (1.16),8 (1.16) (2/3),6 (.87),6 (.87) 1/12.21,4 (.58),2 (.29) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) (5) (6) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9),4 (.58),2 (.29) 7 (18.5) 14 (37.) 21 (55.5) 28 (74.) (5) (6) 35 42 49 56 63 7 (92.5) (11.9)(129.4)(147.9)(166.4)(184.9) ICAT7-2 2 17

FLOWS Filter type HF 554-1.6 GAS (BSPP) Inlet port Degree of filtration FG3 FG6 FG1 FG25 RP/SP1 RP/SP25 Flow p= 5.8 psi (,4 bar) (values referred to standard filtering surfaces) NPT SAE J514b US gpm (l/min) G 3/8 3/8 NPT 9/16-18 UNF-2B 4. (15) 4. (15) 6.6 (25) 6.6 (25) 6.6 (25) 9.2 (35) G 1/2 1/2 NPT 3/4-16 UNF-2B 4. (15) 4. (15) 6.6 (25) 6.6 (25) 6.6 (25) 11.9 (45) G 3/4 3/4 NPT 1 1/16-12 UNF-2B 4. (15) 4. (15) 6.6 (25) 7.9 (3) 6.6 (25) 11.9 (45) G 3/8 3/8 NPT 9/16-18 UNF-2B 7.9 (3) 9.2 (35) 9.2 (35) 11.9 (45) 11.9 (45) 13.2 (5) HF 554-1.129 G 1/2 1/2 NPT 3/4-16 UNF-2B 9.2 (35) 9.2 (35) 11.9 (45) 13.2 (5) 11.9 (45) 15.9 (6) G 3/4 3/4 NPT 1 1/16-12 UNF-2B 9.2 (35) 9.2 (35) 11.9 (45) 14.5 (55) 13.2 (5) 18.5 (7) G 1/2 1/2 NPT 3/4-16 UNF-2B 9.2 (35) 9.2 (35) 11.9 (45) 13.2 (5) 13.2 (5) 17.2 (65) HF 554-2.77 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 9.2 (35) 9.2 (35) 11.9 (45) 14.5 (55) 14.5 (55) 19.8 (75) G 1 1 NPT 1 5/16-12 UNF-2B 9.2 (35) 9.2 (35) 11.9 (45) 14.5 (55) 14.5 (55) 22.5 (85) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 9.2 (35) 9.2 (35) 11.9 (45) 14.5 (55) 14.5 (55) 22.5 (85) G 1/2 1/2 NPT 3/4-16 UNF-2B 11.9 (45) 13.2 (5) 14.5 (55) 17.2 (65) 17.2 (65) 19.8 (75) HF 554-2.122 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 11.9 (45) 14.5 (55) 17.2 (65) 19.8 (75) 19.8 (75) 25.1 (95) G 1 1 NPT 1 5/16-12 UNF-2B 13.2 (5) 14.5 (55) 17.2 (65) 19.8 (75) 19.8 (75) 26.4 G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 13.2 (5) 14.5 (55) 17.2 (65) 21.1 (8) 19.8 (75) 27.7 (15) G 1/2 1/2 NPT 3/4-16 UNF-2B 17.2 (65) 17.2 (65) 19.8 (75) 22.5 (85) 21.1 (8) 23.8 (9) HF 554-2.21 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 18.5 (7) 19.8 (75) 23.8 (9) 27.7 (15) 26.4 33. (125) G 1 1 NPT 1 5/16-12 UNF-2B 19.8 (75) 22.5 (85) 25.1 (95) 3.4 (115) 3.4 (115) 38.3 (145) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 19.8 (75) 22.5 (85) 26.4 31.7 (12) 3.4 (115) 42.3 (16) G 1/2 1/2 NPT 3/4-16 UNF-2B 19.8 (75) 19.8 (75) 22.5 (85) 22.5 (85) 22.5 (85) 25.1 (95) HF 554-2.28 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 22.5 (85) 25.1 (95) 27.7 (15) 3.4 (115) 3.4 (115) 34.3 (13) G 1 1 NPT 1 5/16-12 UNF-2B 25.1 (95) 27.7 (15) 31.7 (12) 35.7 (135) 35.7 (135) 4.9 (155) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 26.4 29.1 (11) 33. (125) 38.3 (145) 38.3 (145) 46.2 (175) G 1 1 NPT 1 5/16-12 UNF-2B 39.6 (15) 4.9 (155) 44.9 (17) 5.2 (19) 5.2 (19) 55.5 (21) HF 554-3.195 G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 4.9 (155) 44.9 (17) 5.2 (19) 58.1 (22) 58.1 (22) 71.3 (27) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 42.3 (16) 46.2 (175) 55.5 (21) 6.8 (23) 6.8 (23) 74. (28) G 1 1 NPT 1 5/16-12 UNF-2B 42.3 (16) 44.9 (17) 5.2 (19) 52.8 52.8 58.1 (22) HF 554-3.239 G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 47.5 (18) 5.2 (19) 55.5 (21) 63.4 (24) 6.8 (23) 71.3 (27) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 5.2 (19) 52.8 6.8 (23) 66. (25) 66. (25) 76.6 (29) HF 554-4.122 G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 46.2 (175) 51.5 (195) 6.8 (23) 72.6 (275) 64.7 (245) 89.8 (34) G 2 2 NPT 2 1/2-12 UNF-2B 47.5 (18) 54.1 (25) 63.4 (24) 76.6 (29) 68.7 (26) 1.4 (38) HF 554-4.194 HF 554-4.195 HF 554-4.239 G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 66. (25) 72.6 (275) 81.9 (31) 91.1 (345) 84.5 (32) 13. (39) G 2 2 NPT 2 1/2-12 UNF-2B 7. (265) 76.6 (29) 88.5 (335) 1.4 (38) 92.5 (35) 118.9 (45) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 68.7 (26) 76.6 (29) 87.2 (33) 97.7 (37) 89.8 (34) 113.6 (43) G 2 2 NPT 2 1/2-12 UNF-2B 72.6 (275) 81.9 (31) 95.1 (36) 111. (42) 1.4 (38) 134.7 (51) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 95.1 (36) 1.4 (38) 18.3 (41) 116.2 (44) 18.3 (41) 124.2 (47) G 2 2 NPT 2 1/2-12 UNF-2B 15.7 114.9 (435) 125.5 (475) 138.7 (525) 126.8 (48) 15.6 (57) 1/12.21 HF 554-4.39 HF 554-4.512 G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 113.6 (43) 116.2 (44) 121.5 (46) 124.2 (47) 121.5 (46) 126.8 (48) G 2 2 NPT 2 1/2-12 UNF-2B 132.1 (5) 14. (53) 146.6 (555) 153.2 (58) 147.9 (56) 159.8 (65) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 118.9 (45) 121.5 (46) 124.2 (47) 126.8 (48) 124.2 (47) 129.4 (49) G 2 2 NPT 2 1/2-12 UNF-2B 145.3 (55) 147.9 (56) 153.2 (58) 158.5 (6) 153.2 (58) 163.8 (62) 18 2 ICAT7-2

FLOWS Filter type HF 554-1.6 GAS (BSPP) Inlet port Degree of filtration MI25 MI6 MS9 MI125 Flow p= 5.8 psi (,4 bar) (values referred to standard filtering surfaces) NPT SAE J514b US gpm (l/min) G 3/8 3/8 NPT 9/16-18 UNF-2B 9.2 (35) 11.9 (45) 11.9 (45) 14.5 (55) G 1/2 1/2 NPT 3/4-16 UNF-2B 9.2 (35) 11.9 (45) 14.5 (55) 15.9 (6) G 3/4 3/4 NPT 1 1/16-12 UNF-2B 9.2 (35) 13.2 (5) 15.9 (6) 17.2 (65) G 3/8 3/8 NPT 9/16-18 UNF-2B 11.9 (45) 14.5 (55) 14.5 (55) 14.5 (55) HF 554-1.129 G 1/2 1/2 NPT 3/4-16 UNF-2B 14.5 (55) 17.2 (65) 17.2 (65) 18.5 (7) G 3/4 3/4 NPT 1 1/16-12 UNF-2B 17.2 (65) 19.8 (75) 21.1 (8) 22.5 (85) G 1/2 1/2 NPT 3/4-16 UNF-2B 14.5 (55) 18.5 (7) 19.8 (75) 21.1 (8) HF 554-2.77 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 17.2 (65) 22.5 (85) 23.8 (9) 25.1 (95) G 1 1 NPT 1 5/16-12 UNF-2B 17.2 (65) 22.5 (85) 25.1 (95) 27.7 (15) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 17.2 (65) 23.8 (9) 26.4 29.1 (11) G 1/2 1/2 NPT 3/4-16 UNF-2B 17.2 (65) 19.8 (75) 21.1 (8) 22.5 (85) HF 554-2.122 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 19.8 (75) 23.8 (9) 25.1 (95) 26.4 G 1 1 NPT 1 5/16-12 UNF-2B 22.5 (85) 26.4 27.7 (15) 3.4 (115) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 22.5 (85) 27.7 (15) 29.1 (11) 31.7 (12) G 1/2 1/2 NPT 3/4-16 UNF-2B 22.5 (85) 25.1 (95) 25.1 (95) 25.1 (95) HF 554-2.21 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 27.7 (15) 33. (125) 33. (125) 35.7 (135) G 1 1 NPT 1 5/16-12 UNF-2B 3.4 (115) 38.3 (145) 4.9 (155) 42.3 (16) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 33. (125) 4.9 (155) 43.6 (165) 46.2 (175) G 1/2 1/2 NPT 3/4-16 UNF-2B 23.8 (9) 25.1 (95) 25.1 (95) 25.1 (95) HF 554-2.28 G 3/4 3/4 NPT 1 1/16-12 UNF-2B 3.4 (115) 33. (125) 34.3 (13) 35.7 (135) G 1 1 NPT 1 5/16-12 UNF-2B 35.7 (135) 4.9 (155) 42.3 (16) 43.6 (165) G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 38.3 (145) 44.9 (17) 47.6 (18) 48.9 (185) G 1 1 NPT 1 5/16-12 UNF-2B 5.2 (19) 55.5 (21) 58.1 (22) 6.8 (23) HF 554-3.195 G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 6.8 (23) 68.7 (26) 71.3 (27) 74. (28) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 63.4 (24) 74. (28) 76.6 (29) 81.9 (31) G 1 1 NPT 1 5/16-12 UNF-2B 55.5 (21) 56.8 (215) 58.1 (22) 6.8 (23) HF 554-3.239 G 1 1/4 1 1/4 NPT 1 5/8-12 UNF-2B 66. (25) 71.3 (27) 74. (28) 76.6 (29) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 68.7 (26) 76.6 (29) 79.3 (3) 81.9 (31) HF 554-4.122 G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 76.6 (29) 95.1 (36) 11.7 (385) 18.3 (41) G 2 2 NPT 2 1/2-12 UNF-2B 81.9 (31) 15.7 116.2 (44) 124.2 (47) 1/12.21 HF 554-4.194 HF 554-4.195 HF 554-4.239 G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 91.1 (345) 14.3 (395) 18.3 (41) 111. (42) G 2 2 NPT 2 1/2-12 UNF-2B 11.7 (385) 118.9 (45) 126.8 (48) 132.1 (5) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 97.7 (37) 114.9 (435) 121.5 (46) 124.2 (47) G 2 2 NPT 2 1/2-12 UNF-2B 111. (42) 137.4 (52) 145.3 (55) 153.2 (58) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 112.3 (425) 122.8 (465) 125.5 (475) 128.1 (485) G 2 2 NPT 2 1/2-12 UNF-2B 132.1 (5) 15.6 (57) 155.9 (59) 161.1 (61) HF 554-4.39 HF 554-4.512 G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 122.8 (465) 126.8 (48) 129.4 (49) 13.8 (495) G 2 2 NPT 2 1/2-12 UNF-2B 15.6 (57) 159.8 (65) 162.5 (615) 163.8 (62) G 1 1/2 1 1/2 NPT 1 7/8-12 UNF-2B 126.8 (48) 128.1 (485) 129.4 (49) 13.8 (495) G 2 2 NPT 2 1/2-12 UNF-2B 155.9 (59) 162.5 (615) 163.8 (62) 166.4 (63) ICAT7-2 2 19

HF 554-1 DIMENSIONS AIR BREATHER TO SEE Pag.26 RESERVOIR MOUNTING HOLE DIMENSIONS (3)(GAS-BSPP) (3)(GAS-BSPP) Weight A B (GAS-BSPP) Filter type Secondary inlet Indicators kg(lbs) mm(in) Standard On request,55 79 HF 554-1.6 G 1/2 G 3/8 - G 3/4 (1.21) (3.112) G3/8 G1/8,66 148 HF 554-1.129 G 3/4 G 3/8 - G 1/2 (5.8267) NPT, metric and SAE UN-UNF threads are available (consult our technical department). 1/12.21 2 2 ICAT7-3

HF 554-2 DIMENSIONS AIR BREATHER TO SEE Pag.26 RESERVOIR MOUNTING HOLE DIMENSIONS 1/12.21 Filter type HF 554-2.77 HF 554-2.122 HF 554-2.21 HF 554-2.28 Weight A B (GAS-BSPP) ØC kg(lbs) mm(in) Standard On request mm(in) 1,21 (2.67) 13 (4.551) G3/4 G1/2-G1-G11/4 27.5 1,3 148 (1.826) (2.86) (5.8267) G1 G1/2-G3/4-G11/4 1,45 229 (3.2) (9.157) G11/4 G1/2-G3/4-G1 4 (1.5747) 1,67 (3.68) 312 (12.2834) NPT, metric and SAE UN-UNF threads are available (consult our technical department). (3)(5)(GAS-BSPP) Secondary inlet G3/8 G1/2 (3)(GAS-BSPP) Indicators G1/8 ICAT7-3 2 21

HF 554-3 DIMENSIONS RESERVOIR MOUNTING HOLE DIMENSIONS Filter type Weight A B (GAS-BSPP) kg(lbs) mm(in) Standard On request (GAS-BSPP) (3)(GAS-BSPP) (GAS-BSPP) Secondary inlet Indicators Filler cap 1/12.21 HF 554-3.195 HF 554-3.239 3,44 (7.58) 226,5 (8.9172) 3,63 269,5 (8.) (1.612) G11/4 G1-G11/2 G 3/8 Pos.- G 1/2 Pos.- G11/2 G1-G11/4 G3/4Pos. NPT, metric and SAE UN-UNF threads are available (consult our technical department). G1/8 G3/4 22 2 ICAT7-3

HF 554-4 DIMENSIONS RESERVOIR MOUNTING HOLE DIMENSIONS 1/12.21 Filter type HF 554-4.122 4,93 (1.87) HF 554-4.194 5,3 Weight A B (GAS-BSPP) ØC (GAS-BSPP) Secondary inlet kg(lbs) mm(in) Standard On request mm(in) (11.68) HF 554-4.195 HF 554-4.239 5,69 (12.54) HF 554-4.39 8,5 (17.75) HF 554-4.512 9,13 (2.13) 159,5 (6.2795) 225,5 (8.8779) 285,5 (11.241) 429,5 (16.994) 554,5 (21.836) G11/2 G2 G2 G11/2 5 (1.9684) 64 (2.5196) G 3/8 Pos.-- G 1/2 Pos.-- G1Pos. G 1 1/4 Pos. NPT, metric and SAE UN-UNF threads are available (consult our technical department). (3)(GAS-BSPP) (GAS-BSPP) Indicators Filler cap G1/8 G11/4 ICAT7-3 2 23

ELEMENTS DIMENSIONS FOR HF 554 Element series HE K2-4.239, HE K2-4.39, HE K2-4.512 are only available with (FS) version. Element type ØA ØB C Filtering surface type Filtering surface FG MI/MS RP/SP mm(in) mm(in) mm(in) cm 2 (in 2 ) cm 2 (in 2 ) cm 2 (in 2 ) HE K2-1.6 26 52 75 (2.9527) (1.226) (2.472) 144 HE K2-1.129 (5.6692) HE K2-2.77 29 95 (3.741) (1.1417) 14 HE K2-2.122 7 (5.5117) HE K2-2.21 41 (2.7558) 225 (8.8582) (1.6141) 34 HE K2-2.28 (11.9684) HE K2-3.195 41 99 212 (8.3664) (1.6141) (3.8976) 255 HE K2-3.239 (1.393) HE K2-4.122 52 139 (5.4724) HE K2-4.194 (2.472) 212 HE K2-4.195 13 (8.3464) HE K2-4.239 65 (5.118) 256 (1.787) (2.559) 47 HE K2-4.39 (16.235) 529 HE K2-4.512 (2.8267) AS AS AS AS AS AS AS AS AS AS FS FS FS 346 (53.631) 743 (115.1652) 72 (18.812) 1113 (172.5153) 168 (26.45) 2341 (362.8557) 375 (574.2761) 4541 (73.8564) 3821 (592.2562) 617 (946.5869) 617 (946.5869) 1325 (16.378) 16536 (2563.85) 2179 (3364.92) 227 (35.185) 488 (75.641) 444 (68.821) 615 (95.3251) 929 (143.9953) 1294 (2.574) 248 (317.446) 251 (389.58) 2174 (336.377) 3159 (489.646) 3159 (489.646) 4646 (72.1314) 7441 (1153.357) 9769 (1514.198) 4 (62.1) 859 (133.1453) 85 (131.753) 1347 (28.7854) 234 (315.276) 2834 (439.279) 4485 (695.1764) 5497 (852.367) 419 (622.9462) 6423 (995.567) 6423 (995.567) 989 (152.398) 1579 (2434.9) 2623 (3196.571) 1/12.21 24 2 ICAT7-3

INDICATORS REAR MANOMETER Code: M RADIAL MANOMETER Code: N Scale +145 psi ( +1 bar) Scale +145 psi ( +1 bar) VISUAL INDICATOR Code: P ELECTRICAL INDICATOR Code: S 3 2 1 1/12.21 Pressure setting 21.8 psi (1,5 bar) Pressure setting 21.8 psi (1,5 bar) Max. working voltage 25 VCA 11 VCC Max. working current,5 A (resistivity),15 A (inductive) Protection class IP65 Contacts N.O. and N.C. ICAT7-3 2 25

ACCESSORIES WITH AIR BREATHER only for HF 554-1 and HF 554-2 WITH ANTISPLASH only for HF 554-2 Filter with air breather A mm(in) B mm(in) HF 554-1 HF 554-2 72,5 (2.8543) 93,5 (3.681) 22 (.8661) 32,5 (1.2795) WITH PRESSURIZED AIR BREATHER only for HF 554-1 and HF 554-2 WITH LEVEL DIPSTICK Filter with press. air breather A mm(in) B mm(in) HF 554-1 HF 554-2 98 (3.8582) 119,5 (4.747) 22 (.8661) 32,5 (1.2795) WITH BOWL EXTENSION WITH DIFFUSER Filter with diffuser HF 554-1 HF 554-2 HF 554-3 HF 554-4 A mm(in) 52 (2.472) 7 (2.7558) 99 (3.8976) 14 (5.5117) B mm(in) 5 (1.9684) 65 (2.559) 9 (3.5432) 15 (5.954) 1/12.21 26 2 ICAT7-3

INLET PORTS PORTS TYPE Filter type HF 554-1 Nominal size Gas NPT SAE BSPP 3/8" GC NC OA 1/2" GD ND OB 3/4" GE NE OD ODT 1/2" GD ND OB HF 554-2 3/4" GE NE OD 1" GF NF OF 1" 1/4 GG NG OG 1" GF NF OF HF 554-3 1" 1/4 GG NG OG 1" 1/2 GH NH OH HF 554-4 1" 1/2 GH NH OH 2" GL NL OI GAS THREAD BSPP Cylindrical GAS thread (55 ) in accordance with UNI - ISO 228 1/12.21 CODE Nominal size A GC 3/8" G 3/8 GD 1/2" G 1/2 GE 3/4" G 3/4 GF 1" G 1 GG 1" 1/4 G 1 1/4 GH 1" 1/2 G 1 1/2 GL 2" G 2 B C mm (in) mm (in) Nm (lbf in) 15 14 15 +1 (.595) (.5511) (133 142) 19 17 2 +1 (.748) (.6692) (177 186) 24,5 2 3 +2,5 (.9645) (.7873) (266 288) 3,5 22 5 +2,5 (1.27) (.8661) (443 465) 39 24 6 +5 (1.5354) (.9448) (531 575) 45 26 7 +5 (1.7716) (1.236) (62 664) 57 32 15 +1 (2.244) (1.2598) (1328 1416) ICAT7-3 2 27

INLET PORTS NPT THREAD NPT NPT thread (6 ) in accordance with ANSI - ASME B1-2 CODE Nominal size NC 3/8" 3/8 NPT ND 1/2" 1/2 NPT NE 3/4" 3/4 NPT A NF 1" 1 NPT NG 1" 1/4 1 1/4 NPT NH 1" 1/2 1 1/2 NPT NL 2" 2 NPT B C mm (in) mm (in) Nm (lbf in) 14,75 (.587) 18 (.786) 23,5 (.9251) 29,5 (1.1614) 38,5 (1.5157) 44 (1.7322) 57 (2.244) 1 (.3936) 13 (.5118) 14 (.5511) 17 (.6692) 18 (.786) 18,5 (.7283) 19,5 (.7677) 5 +1 (44 53) 1 +1 (88 97) 25 +1 (221 23) 3 +2,5 (265 287) 5 +2,5 (442 464) 7 +5 (62 664) 13 +5 (115 1195) SAE J514 THREAD ODT American thread UNC-UNF 6 in accordance with ANSI B 1.1 CODE Nominal size OA 3/8" 9/16" - 18 UNF- 2B OB 1/2" 3/4" - 16 UNF - 2B OD 3/4" 1 1/16" - 12 UNF - 2B OF 1" 1 5/16" - 12 UNF - 2B OG 1" 1/4 1 5/8" - 12 UNF - 2B OH 1" 1/2 1 7/8" - 12 UNF - 2B OI 2" 2 1/2" - 12 UNF - 2B A B C mm (in) mm (in) Nm (lbf in) 12,75 12 15 +1 (.519) (.4724) (133 142) 17,3 15 2 +1 (.6811) (.595) (177 186) 24,7 2 4 +2,5 (.9724) (.7873) (354 376) 3,5 2 6 +5 (1.27) (.7873) (531 575) 39,1 2 7 +5 (1.5393) (.7873) (62 664) 45,3 2 1 +5 (1.7834) (.7873) (885 929) 61,3 2 15 +1 (2.4133) (.7873) (1328 1416) 1/12.21 28 2 ICAT7-3

ASSEMBLY AND REPLACING ELEMENT INSTRUCTIONS MOUNTING Once you have checked the integrity of the filter inside its package, proceed as follow: A B C D E F G Take off the protection cap from the inlet port. Secure the filter in the tank through the holes in the body's flange (pos.2) tightening them as follows: HF 554-1 and HF 554-2 = 44 lbf in (5 Nm) HF 554-3 = 62 lbf in (7 Nm) HF 554-4 = 88 lbf in (1 Nm) Connect the piping of the return line to the inlet port using the tightening torque indicated on pages 27 and 28. In the presence of secondary inlet ports, prepare the required connections. If the filter has a clogging indicator (pos.11-12 - 13-14), take the protection cap off and screw the indicator in the dedicated seat, then tighten to a tightening torque of 177 lbf in (2 Nm). If the indicator is electric, complete the required connections. Start the circuit for a few minutes. Make sure there are no leaks. REPLACING ELEMENT Once the working hour limit indicated in the manteinance instructions of the system is reached or when the clogging indicators point out the limit pressure drop created inside the filter, the element must be replaced. Pay attention to the drainage of hydraulic oil, therefore prepare suitable containers to collect it.each time the filtering element gets substituted we advise to change the air filter one too (pos.15). Proceed as follows: A B C D E F G H I L M Stop the system in "machine stopped" status. Secure any shut-off valves on the hydraulic circuit. Unscrew the cover's screw (pos.2)(only for dimension HF 554-3 and 4) and take off the closing cap (pos.1). Remove the clogged filtering element (pos.7) and clean the bowl's bottom (pos.4) from the residual particles left during the functioning. Check out that the O-rings (pos.3, 6 and 9) are not damaged, otherwise replace them and consequently position the new ones correctly.. In case of leakages between the tank and the filter's body (pos.2) check out the seal condition (pos.1)(or O-ring). If it is damaged replace it and consequently position the new one correctly. Insert the new filtering element pre-emptively lubricating theo-ring(pos.6). Insert the placement spring (pos.8) in the dedicated seat of the filter's cover (pos.1). Reassemble it using the fixing screws (pos.2) with a tightening torque of 44 lbf in (5 Nm). Re-open the eventual valves closed before. Start the machine for a few minutes. Make sure there are no leaks. 1/12.21 Pos. Description Pos. Description 1 Filter's body seal 11 Radial manometer 2 Filter's body 12 Rear manometer 3 Bowl O-ring 13 Visual indicator 4 Bowl 14 Electricl indicator 5 Level dipstick 15 Air breather element 6 Element O-ring 16 Breather protection 7 Filtering element 17 Pressurized air breather joint 8 Placement spring 18 Pressurized air breather 9 Cover's O-ring 19 Filler cap 1 Closing cap 2 Cover's fixing screws When ordering spare parts, always specify the reference number, the filter code and quantity. Example: Spare parts pos. 9 - HHD14 - Q.ty 3 ICAT7-4 2 29

HOW TO ORDER A COMPLETE FILTER HF 554-1 / 2 1 2 3 4 5 6 7 8 HF 554-2.122 - AS - FG1 - B17 - GG - B - S - Z - 9 1 11 12 13 14 15 XA - GA - M - YC - GC - A - K 1 Filter type CODE See table from pag. 2 to pag. 21 HF 554.. 2 Filtering surface CODE Standard Oversize AS FS 3 Degree of filtration CODE 3 m] Micro-fibre glass FG3 6 m] Micro-fibre glass FG6 1 m] Micro-fibre glass FG1 25 [ m] Micro-fibre glass FG25 25 [ m] Stainless steel wire mesh MI25 6 [ m] Stainless steel wire mesh MI6 125[ m] Stainless steel wire mesh MI125 9 [ m] Steel wire mesh MS9 1 [ m] Cellulose SP1 25 [ m] Cellulose SP25 1 [ m] Reinforced cellulose RP1 25 [ m] Reinforced cellulose RP25 4 By-pass setting valve CODE With By-pass setting valve 25 [psi] (1,7 [bar]) With By-pass setting valve 51 [psi] (3,5 [bar]) B17 B35 5 Inlet port CODE GAS threads (BSPP) G3/8 GC G1/2 GD G3/4 GE G1 GF G11/4 GG NPT threads 3/8 NC 1/2 ND 3/4 NE 1 NF 11/4 NG SAE threads ODT 3/8 OA 1/2 OB 3/4 OD 1 OF 11/4 OG 6 Seals CODE Buna Viton Standard On request B V 7 Air breather CODE Without With breather and filter 1 [ m] With breather and filter 4 [ m] With pressurized breather 4.4 psi(,3 bar) and filter 4 [ m] With pressurized breather 4.4 psi(o,3 bar), pressurized suction -.4 psi(,3 bar) and filter 4 [ m] 8 Magnetic set CODE Without With magnetic set 9 Indicators arranged CODE Without On the housing - right On the housing - left On the cover (3) C S U J W Z R XN XA XB XD 1 Indicator's ports dimensions CODE GAS Threads (BSPP) G1/8 GA G 1/8 with plug DA 11 Indicators CODE Without Manometer - rear connection Manometer - radial connection Visual indicator Electrical indicator 12 Secondary ports CODE Without On the housing - right On the housing - left On the housing - front-left (5) (only for HF 554-2) On the cover G M N P S YN YA YB YC YD 13 Secondary ports dimensions CODE G1/4 GB G3/8 GC G1/2 GD 14 Antisplash CODE Without With Antisplash (only for HF 554-2) 15 Accessories CODE Without With diffuser Withbowlextension(ex.bowlextensionlenght15=P15) O A K D P... 1/12.21 3 2 ICAT7-5

HOW TO ORDER A COMPLETE FILTER HF 554-3 / 4 1 2 3 4 5 6 7 8 HF 554-3.195 - AS - FG1 - B17 - GG - B - H - Z - 9 1 11 12 13 14 XA - GA - M - YD - GE - K 1 Filter type CODE See table from pag. 22 to pag. 23 HF 554.. 2 Filtering surface CODE Standard AS Oversize FS 3 Degree of filtration CODE 3 m] Micro-fibre glass FG3 6 m] Micro-fibre glass FG6 1 m] Micro-fibre glass FG1 25 [ m] Micro-fibre glass FG25 25 [ m] Stainless steel wire mesh MI25 6 [ m] Stainless steel wire mesh MI6 125[ m] Stainless steel wire mesh MI125 9 [ m] Steel wire mesh MS9 1 [ m] Cellulose SP1 25 [ m] Cellulose SP25 1 [ m] Reinforced cellulose RP1 25 [ m] Reinforced cellulose RP25 4 By-pass setting valve CODE With By-pass setting valve 25 [psi] (1,7 [bar]) B17 With By-pass setting valve 51 [psi] (3,5 [bar]) B35 7 Filler cap CODE Without With filler cap 8 Magnetic set CODE Without With magnetic set 9 Indicators arranged CODE Without On the housing - right On the housing - left On the cover (3) H L Z R XN XA XB XD 1 Indicator's ports dimensions CODE GAS threads (BSPP) G1/8 GA G 1/8 with plug DA 11 Indicators CODE Without Manometer - rear connection Manometer - radial connection Visual Indicator Electrical indicator G M N P S 1/12.21 5 Inlet port CODE GAS threads (BSPP) G1 GF G11/4 GG G11/2 GH G2 GL NPT threads 1 NF 11/4 NG 11/2 NH 2 NL SAE threads ODT 1 OF 11/4 OG 11/2 OH 2 OI 6 Seals CODE Buna Viton B V 12 Secondary ports CODE Senza On the housing - right On the housing - left On the cover YN YA YB YD 13 Secondary ports dimensions CODE G3/8 GC G1/2 GD G3/4 GE G 1 (only for HF 554-4) GF G 1 1/4 (only for HF 554-4) GG 14 Accessories CODE Without With diffuser Withbowlextension(ex.bowlextensionlenght15=P15) With level dipstick(ex. level dipstick lenght 175=L175) K D P... L... Standard On request ICAT7-5 2 31

HOW TO ORDER A REPLACEMENT ELEMENT 1 2 3 4 5 6 HE K2-2.21 - AS - FG1 - VM - B17 - B 1 Element type CODE See table pag. 24 HE K2.. 2 Filtering surface CODE Standard AS Oversize FS 3 Degree of filtration CODE 3 m] Micro-fibre glass FG3 6 [ m] Micro-fibre glass FG6 1 m] Micro-fibre glass FG1 25 [ m] Micro-fibre glass FG25 25 [ m] Stainless steel wire mesh MI25 6 [ m] Stainless steel wire mesh MI6 125[ m] Stainless steel wire mesh MI125 9 [ m] Steel wire mesh MS9 1 [ m] Cellulose SP1 25 [ m] Cellulose SP25 1 [ m] Reinforced cellulose RP1 25 [ m] Reinforced cellulose RP25 4 By-pass valve CODE With valve and spring VM With valve - without spring VV 5 By-pass setting valve CODE With By-pass setting valve 25 [psi] (1,7 [bar]) B17 With By-pass setting valve 51 [psi] (3,5 [bar]) B35 6 Seals CODE Buna B Viton V Standard On request 1/12.21 32 2 ICAT7-5

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Suction filters HF 41 HF 412 HF 431 HF 434 HF 437 Tank mounted return line filters HF 52 HF 58 HF 547 HF 554 HF 57 HF 575 HF 578 In line filters Spin-On HF 62 HF 625 HF 65 In line medium and high pressure filters HF 69 HF 75 HF 71 HF 725 HF 735 HF 745 HF 76 HF 761 Accessories Filler breathers Air filters Level and temperature gauges Pressure gauges Pressure/vacuum gauges Clogging indicators HF 554 1 T A Edition: 1/12.21 IKRON S.r.l. Via Prampolini, 2-4344 Lemignano di Collecchio - Parma - Italy Tel.: + 39 521 34911 - Fax: + 39 521 349 Videoconferecing IP www.ikron.it E-mail: info@ikron.it