High Pressure Filters Worldline 4 HD 79 HD 99 In-line mounting Operating pressure up to bar / 97 psi Nominal flow rate up to. l/min / 4. gpm Description Application In the high pressure circuits of hydraulic systems. Performance features Protection against wear: By means of filter elements that even in full-flow filtration meet the highest demands regarding cleanliness classes. Protection against malfunction: Through installation near to the control valves or other expensive components. The specific determined flow rate guarantees a closed by-pass valve even at ν mm /s / 97 SUS (cold start condition). Filter elements Flow direction from outside to center. The star-shaped pleating of the filter material results in: large filter surfaces low pressure drop high dirt-holding capacities long service life Filter maintenance By using a clogging indicator the correct moment for maintenance is stated and guarantees the optimum utilization of the filter life. High Pressure Filter HD 99 Materials Filter head: Filter bowl: Housing cover: Coating: Seals: Filter media: Spheroidal graphite cast iron (SGI) Steel Spheroidal graphite cast iron (SGI) Powder paint NBR (FPM on request) EXAPOR MAX inorganic multi-layer microfiber web Accessories Electrical and / or optical clogging indicators are available optionally with one or two switching points resp. temperature suppression. Dimensions and technical data see catalog sheet.. Page
Characteristics Operating pressure... 4 bar / 8 psi, min. x pressure cycles Nominal pressure according to DIN 4... bar / 97 psi, min. 4 pressure cycles Quasi-static operating pressure Permissible pressures for other numbers of cycles Operating pressure p [bar] [psi] 87 7 8 Number of cycles n Nominal flow rate Up to l/min / 4. gpm (see Selection Chart, column ) The nominal flow rates indicated by ARGO-HYTOS are based on the following features: closed by-pass valve at ν mm /s / 97 SUS element service life > operating hours at an average fluid contamination of.7 g per l/min /.7 g per gpm flow volume flow velocity in the connection lines: up to bar 8 m/s / up to psi. ft/s > bar m/s / > psi 9.4 ft/s Filter fineness µm(c)... µm(c) β-values according to ISO 889 (see Selection Chart, column 4 and diagram Dx). Dirt-holding capacity Values in g test dust ISO MTD according to ISO 889 (see Selection Chart, column ). Hydraulic fluids Mineral oil and biodegradable fluids (HEES and HETG, see info-sheet.). Temperature range - C... + C (temporary -4 C... + C) - F... + F (temporary -4 F... +48 F) Viscosity at nominal flow rate at operating temperature: ν < mm /s / 8 SUS as starting viscosity: ν max = mm /s / SUS at initial operation: The recommended starting viscosity can be read from the diagram D (pressure drop as a function of the kinematic viscosity) as follows: Find the 7% p of the cracking pressure of the by-pass valve on the vertical axis. Draw a horizontal line so that it intersects the p curve at a point. Read this point on the horizontal axis for the viscosity. Mounting position Preferably vertical. The filter head can be mounted in either the uppermost position or the inverse as required. Connection SAE-flange ( psi). Sizes see Selection Chart, column (other connections on request). Page 4 Subject to change 4.9-EN/US 88
Diagrams p-curves for complete filters in Selection Chart, column D Pressure drop as a function of the flow volume at ν = mm /s / SUS ( = casing empty) Pressure drop as a function of the kinematic viscosity at nominal flow Q [gpm] 9 4.,.8 HD 79 4., 4.., 7. ν [SUS] 97 84 78 78 4 + 74 4 4+ 8 87 4 8 9 4 8 Q [l/min] 4 8 ν [mm /s] D Pressure drop as a function of the flow volume at ν = mm /s / SUS ( = casing empty) Pressure drop as a function of the kinematic viscosity at nominal flow Q [gpm] 9 4.,.8 HD 99., 4. 4+., 7. ν [SUS] 97 84 78 78 4 74 4 4 8 87 4 8 9 4 8 Q [l/min] 4 8 ν [mm /s] Filter fineness curves in Selection Chart, column 4 Dx Filtration ratio β as a function of particle size x obtained by the Multi-Pass Test according to ISO 889 The abbreviations represent the following β-values resp. finenesses: Filtration ratio β for particles > x µm Efficiency [%] For EXAPOR MAX and Paper elements: EX = β (c) = EXAPOR MAX 7EX = β 7 (c) = EXAPOR MAX EX = β (c) = EXAPOR MAX EX = β (c) = EXAPOR MAX P = β (c) = Paper Based on the structure of the filter media of the P paper elements, deviations from the printed curves are quite probable. For screen elements: 4S = screen material with mesh size 4 µm S = screen material with mesh size µm S = screen material with mesh size µm Tolerances for mesh size according to DIN 489 Particle size x [µm] (for particles larger than the given particle size x) For special applications, finenesses differing from these curves are also available by using special composed filter media. Page
Selection Charts Part No. Nominal flow rate Pressure drop see diagram D/curve no. Dirt-holding capacity Filter fineness see diagr. Dx Connection A/B Cracking pressure of by-pass Symbol Replacement filter element Part No. l/min g bar kg Weight Clogging indicator 4 7 8 9 HD 79-89 D/ EX 8 SAE - 7 V.4-* 47 retrofittable - HD 79-9 44 D/ EX SAE 7 4 V.4-4 retrofittable - Remarks HD 79-8 4 D/ EX 7 SAE - 7 V.4-* 47 retrofittable - HD 79-4 D/4 EX 88 SAE 7 4 V.4-4 retrofittable - HD 79-88 D/ EX 7 SAE - 7 V.4-8* 47 retrofittable - HD 79-8 7 D/ EX 89 SAE 7 4 V.4-8 4 retrofittable - HD 99-89 4 D/ EX 8 SAE - 7 V.-* retrofittable - HD 99-9 7 D/ EX 9 SAE 7 4 V.- retrofittable - HD 99-8 8 D/ EX SAE - 7 V.-* retrofittable - HD 99-78 D/4 EX SAE 7 4 V.- retrofittable - HD 99-88 87 D/ EX SAE - 7 V.-8* retrofittable - HD 99-8 D/ EX 4 SAE 7 4 V.-8 retrofittable - gpm g psi lbs 4 7 8 9 HD 79-89 84. D/ EX 8 SAE - 7 V.4-*. retrofittable - HD 79-9. D/ EX SAE 4 V.4-.4 retrofittable - HD 79-8 4.7 D/ EX 7 SAE - 7 V.4-*. retrofittable - HD 79-9. D/4 EX 88 SAE 4 V.4-.4 retrofittable - HD 79-88 74.4 D/ EX 7 SAE - 7 V.4-8*. retrofittable - HD 79-8 98. D/ EX 89 SAE 4 V.4-8.4 retrofittable - HD 99-89. D/ EX 8 SAE - 7 V.-*. retrofittable - HD 99-9. D/ EX 9 SAE 4 V.-. retrofittable - HD 99-8 79. D/ EX SAE - 7 V.-*. retrofittable - HD 99-. D/4 EX SAE 4 V.-. retrofittable - HD 99-88 9.8 D/ EX SAE - 7 V.-8*. retrofittable - HD 99-8 4. D/ EX 4 SAE 4 V.-8. retrofittable - * Element differential pressure stable up to bar / psi, clogging indicator is obligatory Page Subject to change 4.9-EN/US 88
Order Information Optical or electrical indicators are available to monitor the clogging condition of the element. If the indicator should be already mounted onto the filter head use the abbreviation M behind the part number of the indicator. The printed order acknowledgements show both items separately. Order example: The filter HD 79- has to be supplied with optical clogging indicator response pressure. bar / 7 psi. Order description: HD 79- / DG 4- M Part No. (Basic unit) Mounted Clogging indicator For the appropriate clogging indicators see catalog sheet.. Remarks: Filter versions without by-pass valves must always be equipped with a clogging indicator. The filters listed in this chart are standard filters. Other designs available on request. Page 7
Dimensions G R P E S Q O M A P P B C F Clogging indicator optional: Pressure holes plugged with screws D ØH I L K Oil drain plug M x. (AF ) Version with electrical clogging indicator DG 4 N T U V Minimum distance from ferromagnetic parts: 7 mm /. inch Measurements in mm Type A/B C D E F G H I K mm Measurements in inch Type A/B C D E F G H I K mm L M N O P Q R HD 79 SAE.7 9.49.8.78 7.4..9 AF.4 * **.8.8..74 HD 99 SAE.7 7..8.78 7.4.. AF.4 * **.8.8..74 Type S T U V HD 79. 4.8 4.. HD 99. 4.8 4.. * ¾- UNC-B /. ** ½- UNC-B /.79 L M N O P Q R HD 79 SAE 44.4 49 9. 9 84 4 4 AF M / M / 8 9 89 9 HD 99 SAE 44.4 7 9. 9 84 4 4 AF M / M / 8 9 89 9 Type S T U V HD 79 9 HD 99 9 Page 8 Subject to change 4.9-EN/US 88
Symbols 4 7 P P P P Spare Parts Pos. Designation Part No. Housing cover HD 99.9 (with Pos. and ) Back-ring HD.4 O-ring N7.44S 4.7 x. mm 4. x.4 inch 4 Replacement filter element see Chart / col. 9 Hexagonal head screw M4 x 8 88 ISO 47-8.8 Bonded seal 4. x 7. x mm. x.8 x.4 inch 4 The functions of the complete filters, as well as the outstanding features of the filter elements assured by ARGO-HYTOS, can only be guaranteed if original ARGO-HYTOS spare parts are used. 4 Quality Assurance Quality management according to DIN EN ISO 9 To ensure constant quality in production and operation, ARGO-HYTOS filter elements undergo strict controls and tests according to the following ISO standards: ISO 94 ISO 94 ISO 94 ISO 98 ISO 889 ISO 8 Verification of collapse / burst pressure rating Verification of fabrication integrity (Bubble Point Test) Verification of material compatibility with fluids Evaluation of pressure drop versus flow characteristics Multi-Pass-Test (evaluation of filter fineness and dirt-holding capacity) Determination of resistance to flow fatigue using high viscosity fluid Before release into the series production the filter casing is tested for fatigue strength in our pressure pulse test rig. Various quality controls during the production process guarantee the leakfree function and solidity of our filters.. Illustrations may sometimes differ from the original. ARGO-HYTOS is not responsible for any unintentional mistake in this specification sheet. Page 9