In-Tank Return Line Filters RFM Series
Transcription
In-Tank Return Line Filters RFM Series
In-Tank Return Line Filters RFM Series Pressures to 145 psi • Flows to 224 gpm • Port Sizes 1”, 11/2” and 21/2” APPLICATION • HYDAC RFM In-tank Return Line Filters are designed for use on hydraulic power units, machine tools, plastics injection molding equipment, mobile equipment, and hydraulic test equipment. • These filters are designed to be directly mounted onto the oil reservoir for filtration of solids from hydraulic fluids. • The lightweight and compact design makes it especially suitable to be used in mobile applications. • The RFM 75/165 can be used as a combination filter, breather, and filler. This multifunction capability lowers the user’s costs by eliminating components. PRODUCT FEATURES • The RFM 30 Filter is manufactured with polymide plastic housing and lid. • The RFM 75/165 has an aluminum head with a polyamide screw-in lid. • Models 330, 500, 661, and 851 have filter heads and bolt-on lids both made of aluminum. • Model 75/165 has the filter element connected to the filter bowl with a twist lock. The filter bowl also serves as a contamination basket. • All models have polyamide filter bowls. • Models 330, 500, 661, and 851 have filter elements equipped with separate, reusable contamination baskets. • Cavities for clogging indicators are standard. FILTER ELEMENTS HYDAC RFM Filters are available with disposable Betamicron® (BN3HC) elements having 250 psid collapse pressure and absolute ratings of 3, 5, 10, and 20 micron. HYDAC RFM Filters are also available with cleanable wire screen (W/HC) elements having a 250 psid collapse pressure and nominal ratings of 25, 74, and 149 micron. RFM In-tank Return Line Filters For applications which do not require fine filtration, disposable HYDAC (P/HC) polyester elements may be selected. Polyester elements have 145 psid collapse pressure and nominal ratings of 10 and 20 micron. All filter media is supported to achieve flow fatigue resistance. Proper support of the filter media also provides high Beta Ratio values (particle removal efficiency) even at high differential pressures. The efficiency of many competitive elements drastically deteriorates as the element clogs and differential pressure increases over the life of the element. High quality epoxy adhesive is used to bind the end caps to the media and to bond the seam of the media. All elements available for HYDAC RFM filters have the bypass valve built into the filter element. As a result, a new bypass valve is provided each time the element is changed, making it less likely that a bypass valve will stick open, jam, or fail through fatigue. Model Code: RFM Filter Assembly RFM BN3HC 30 G 3 A 1 . 0 / 3 Filter Type RFM - = In-Tank Return Line Filter Filter Media BN3HC BN/AM P/HC = Betamicron® = Betamicrom Aquamicron = Polyester Disposable W/HC = Wire Screen Cleanable Size and Nominal Connection 30 = 1/2” NPT 75 = SAE 16 165 = SAE 16 330 = SAE 24 500 = SAE 24 661 = 2 1/2” flange 851 = 2 1/2” flange Type of Connection G = Threaded (Size 30-500) F = Flange (Size 330-851) Filtration Rating in Microns 3 µm 5 µm Betamicron 10 µm (BN3HC) 20 µm 3 µm Betamicron Aquamicron 10 µm (BN/AM)(Available in 330 & 660 Only) 10 µm Polyester 20 µm (P/HC) 25 µm Wire Screen 74 µm (W/HC) 149 µm Absolute Filtration Rating ßx ³ 200 Absolute Filtration Rating ßx ³ 200 and Water Removal Nominal Filtration Rating Type of Static Clogging Indicator A = No Clogging Indicator B = Visual (pop-up) Clogging Indicator (automatic reset) D = Electrical/Visual (lamp) Clogging Indicator E = Color-Coded Pressure Gauge (also Type ES) F = Pressure Switch (42 volt max.) H = Electric Clogging Indicator RFM 75/165 VMF2C.0 VMF2D.0 VMF2E.0 VMF2F.0 VMF2H.0 RFM30/(330-850) VR2B.0 VR2D.0/L VR2E.0 VR2F.0 VR2H.0 For additional information, see HYDAC brochure “Clogging Indicators” Type Number 1 = 1 Inlet (standard) 2 = 2 Inlets (not available for RFM 30-165) Minimum Requirement Quantity. Consult Factory Modification Number Inlet Port Configuration 3 = NPT (RFM 30 only) 12 = SAE Straight Thread O-Ring Boss Ports 16 = SAE Code 61 Flange Seals (omit) V EPR = Nitrile (NBR) (standard) = Fluoro Rubber (FKM) = Ethylene Propylene Rubber (EPMD) Bypass Valve (omit) = 43 psid (3 bar) - Return Line (standard) KB = No Bypass - Flushing System Supplementary T = Filter Breather (RFM 75 & 165 only) (standard) SO 150H = Anodized Filter Head for Water Base Fluids SO 103H = Modification of BN3HC elements for Phosphate Esters L 24 = Lamp for 24 Volt L 48 = Lamp for 48 Volt D-Type Clogging T70 = Indicator Thermal Lockout, 70°F L 115 = Lamp for 115 Volt Indicators Only T100 = indicator Thermal Lockout, 100°F L 230 = Lamp for 230 Volt 2 Model Codes containing RED are non-stock items – Contact HYDAC for availability Consult factory for B or BM indicator . Model Code: Return Line Filter Elements 0030 R 003 BN3HC / - Element Size Housing 0030 30 0075 75 0165 165 0330 330 0500 500 0660 661 0850 851 Return Line Elements Filtration Rating in Microns 003 = 3 µm Betamicron® 005 = 5 µm Low Collapse 010 = 10 µm (BN3HC) 020 = 20 µm ßx ³ 200 003 010 = = 3 µm 10 µm (BN/AM)(Available in 330/660 Only) 010 020 = = 10 µm 20 µm (P/HC) 025 = 074 = 149 = Type of Media BN3HC = BN/AM = P/HC = 25 µm 74 µm 149 µm Betamicron Aquamicron ßx ³ 200 Polyester Nominal Filtration Rating Wire Screen (W/HC) Betamicron® Betamicron Aquamicron Polyester Disposable W/HC = Wire Screen Cleanable Seals (omit) = Nitrile (NBR) (standard) V = Fluoro Rubber (FKM) EPR = Ethylene Propylene (EPDM) Bypass Valve (omit) = 43 psid/3 bar - Return Line (standard) KB = No Bypass - Flushing System Supplementary SO 103H = Modification of BN3HC Elements for Phosphate Esters Model Codes containing RED are non-stock items – Contact HYDAC for availability 3 Engineering Data: Design In-tank Return Line Filter Mounting Method 4 Mounting Holes in Filter Housing Connections RFM 30 Inlet 1/2” NPT Outlet 0.71” I.D. Smooth No Thread RFM 75 SAE-16 (15/16 - 12UN-2B) 1.09” I.D. Smooth No Thread RFM 165 SAE-16 (15/16 - 12UN-2B) 1” NPT RFM 330 SAE-24 (17/8 - 12UN-2B) SAE-24 Flange, Code 61 2” 2” NPT NPT RFM500 RFM 661 SAE-24 (17/8-12UN-2B) SAE-24 Flange, Code 61 SAE-40 Flange, Code 61 2” NPT 2” NPT 2 1/2” BSPP Outline adaptor available RFM 851 SAE-40 Flange, Code 61 2 1/2” BSPP G2 1/2” male to 2 1/2” NPT female separately Aluminum (Part no. 02700990) Direction of Flow Housing Pressure Ratings Inlet: Side of Housing Outlet: Bottom of Housing Operating: 145 psi (10 bar) Proof: 218 psi (15 bar) Fatigue: Contact HYDAC Office Burst: Contact HYDAC Office Standard Elements: BN3HC: 250 psid (17 bar) W/HC: 250 psid (17 bar) P/HC: 145 psid (10 bar) Nitrile Seals: -15°F - 250°F Please contact HYDAC for information on extreme low temperature (below -15°F) applications. Compatible with all petroleum oils and synthetic fluids rated for use with Nitrile and Fluoro Rubber seals. Contact HYDAC office for more information on special housing and element constructions available for use with water glycols, oil/water emulsions, and HWBF. Filter medium is supported to achieve flow fatigue resistance. Contact HYDAC office for information. P = 29 psi (2 bar) - 10% (standard) ÆP = 43 psid (3 bar) + 10% (standard) RFM 30, 75, & 165 RFM 330, 550, 661, & 851 Element Collapse Fluid Temperature Range Fluid Compatibility (ISO 2943) Element Flow Fatigue Resistance Trip Pressure of Static Indicator Cracking Pressure of Bypass Valve INLET INLET Pop-up Indicator Bypass Valve TANK OUTLET Breather TANK OUTLET Above subject to change to technical modificatios. We i g h t s Model RFM RFM RFM RFM RFM RFM RFM 4 30 75 165 330 550 661 851 with Element lbs. kg. 0.9 0.4 2.0 0.9 2.4 1.1 8.6 3.9 9.9 4.5 19.8 9.0 23.1 10.5 without Element lbs. kg. 0.7 0.3 1.3 0.6 1.5 0.7 6.8 3.1 7.3 3.3 13.2 6.0 14.3 6.5 Bypass Valve Pop-up Indicator TANK OUTLET Filtration Efficiency Multi-Pass Filtration Efficiency Ratings to ISO 4572 for Betamicron® Elements Absolute Element Rating ß3 ³ 200 ß5 ³ 200 ß10 ³ 200 ß20 ³ 200 Betamicron® Element 003BN3HC 005BN3HC 010BN3HC 020BN3HC Terminal ÆP Across Filter Element 72 psi 72 psi 72 psi 72 psi Filter Sizing Calculations ÆP Assembly = ÆP Housing + ÆP Element Housing Curves The housing curve is based on test results using mineral oil with specific gravity of 0.86. Differential pressure increases in proportion to the specific gravity of fluid used in the application. ÆP Housing = ÆP Chart x Actual Specific Gravity 0.86 RFM Filter Housing Curves RFM 30 Housing 0.30 5 20 0.25 4 15 10 0.4 5 0 0 1 2 3 4 5 6 7 0.20 0.15 0.10 ÆP in psi 0.8 RFM 75/165 Housing 25 ÆP in bar 1.2 ÆP in psi ÆP in bar 1.6 3 2 0.05 1 0 0 8 0 10 Q in gpm 0 5 15 10 20 25 30 0 4 0.25 4 3 0.20 0 2 1 0.15 0.10 0.05 0 0 25 50 75 100 0 125 ÆP in psi 0.25 ÆP in bar 5 0.05 40 100 200 80 120 160 200 3 2 1 0 0 40 Q in gpm 0 50 RFM 661/851Housing 0.30 ÆP in psi ÆP in bar RFM 330/500 Housing 5 0.10 40 Q in l/min 0.30 0.15 30 Q in gpm Q in l/min 0.20 20 300 400 500 0 Curves shown are applicable for mineral oil 5 80 with specific gravity of 0.86. Differential 4 3 2 1 0 ÆP in psi 100 ÆP in bar 6 ÆP Valve = ÆP Curve x Actual Specific Gravity 0.86 160 250 300 600 900 Q in l/min Bypass Valve Curve specific gravity of the fluid. 120 Q in gpm Q in l/min pressure increases in proportion to the 80 075R... 0165R... 0500R... 0330R... 60 0851R... 40 0661R... 20 0 0 50 100 150 200 250 800 1000 Q in gpm 0 200 400 600 Q in l/min 5 Element ÆP Calculations The element curves tables are based on test results using mineral oil with a kinematic viscosity of 141 SUS and a specific gravity of 0.86. The differential pressure across the element changes proportionally to the viscosity and specific gravity. ÆP Element = ÆP Curve x Actual Viscosity Actual Specific Gravity x 141 0.86 Polyester (P/HC) and Wire Screen (W/HC) Elements To find P across a clean element divide Application Flow by Maximum Recommended Flow and find percentage; then read P from the appropriate graph below (The equation is not necessary for 165R elements). Application Flow x 100 = % of Flow Max. Recommended Flow Element Size 30 75 165 330 500 660 850 Example: 25 Wire Screen, 50 gpm, Size 330 50 gpm x 100 = 57% of Flow 87 gpm Max. Recommended Flow 8 gpm 20 gpm 44 gpm 87 gpm 132 gpm 174 gpm 224 gpm 57% = 0.2 psi ÆP for 0330R025W/HC element For 30R, 330R, 500R, 660R and 850R Elements (Polyester & Wire): Polyester Elements Wire Screen Elements 1.4 0.025 ÆP in psi ÆP in bar 0.050 P/HC 10 µm 1.0 0.8 0.6 P/HC 20µm 0.4 1.2 0.08 1.0 ÆP in psi 1.2 0.075 1.4 0.10 ÆP in bar 0.100 0.06 W/HC all µm 0.2 0 0 0% 0.6 0.4 0.04 0.2 0 0.8 0 20% 40% 60% 80% 100% 120% 0% Q in gpm as % of Max. recommended flow 20% 40% 60% 80% 100% 120% Q in gpm as % of Max. recommended flow For 165R elements (equation not necessary - use curves below directly) For 75R elements (use 165R value at nominal flow rate ÷ 2) 0165 R...W/HC Nominal 0165 R...P/HC Nominal 0.08 0.06 20 µm 0.5 0.025 0 all µm 1.0 0.5 0.04 0.02 0 0 0 5 10 15 20 25 30 35 40 45 Q in gpm 40 80 120 180 0 Q in l/min 5 10 15 20 25 30 35 40 45 Q in gpm 40 80 120 ÆP in psid 1.0 RFM 75/165 Air Breather 1.5 ÆP in psid 0.050 10 µm 0.10 ÆP in bar 0.075 1.5 ÆP in psid ÆP in bar 0.100 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 10 20 30 40 50 60 70 80 90100 flow in gpm 180 Q in l/min R...BN3HC Betamicron 3 Plus Elements: ® ÆP Element = Element (K) Flow Factor x Flow Rate (gpm) x Actual Viscosity (SUS) x Actual Specific Gravity 141 SUS 0.86 (From Tables Below) Size 0030 0075 0165 0330 0500 0660 0850 6 Element (K) Flow Factors for Filter Sizing ...R...BN3HC psi/gpm 3µm 5µm 10µm 3.35905 2.06859 1.67413 1.16097 0.73016 0.59336 0.67842 0.42667 0.34673 0.24464 0.19438 0.17539 0.16505 0.13114 0.11833 0.11145 0.08856 0.07991 0.09271 0.07367 0.06647 20µm 0.81623 0.38445 0.22466 0.10522 0.07099 0.04794 0.03988 Size 0330 0660 0950 1300 2600 Element (K) Flow Factors for Filter ...R...BN/AM psi/gpm 3µm 0.47746 0.19206 0.13171 0.08781 0.05214 Sizing 10µm 0.16464 0.06586 0.04500 0.03348 0.01866 Dimensions: RFM 30 Bore Hole in Tank Top only on Model RFM 30 with Air Filter 0.39 10 0.197 5 1.693 43 3.66 93 3.94 100 1.50 38 HEX 1 7/16 36 3.071 78 Mounting Bolt Circle 2.80 71 3.54 90 Hex 1 1/16 27 G 1/2" Indicator Port Clearance required for element removal 0.43 11 1/2" NPT 2.76 70 Name Plate 1.06 27 0.31 8 3.39 86 0.71 18 Oultlet 2.36 60 Dimensions in Inches/Millimeters Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requesting a certified print. 7 Dimensions: RFM 75/165 Air Breather Option 2.76 70 2.83 72 2.95 75 4.311 109.5 ø 2.13 54 4.547 115.5 5.45 138.5 Air Breather .43 11 9.06 230 Clearance for Element Removal SAE-16 (1 5 / 16 -12UN-2B) 2.047 52 Inlet 3.23 82 1.693 43 1.339 34 2.01 51 H1 Connection for Clogging Indicator G- 1 / 8 " Model 075 165 H1 3.7 94 8.19 208 D1 1.09 ø 27.7 1” NPT Outlet Type RFM 75/165 without Oil Separator A Dimensions in Inches/Millimeters Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requesting a certified print. 8 with Oil Separator A 2.89 73.4 3.32 84.3 Dimensions: RFM 330/500 d3 Inlet h4 Clearance for Element Removal b1 3.86 98 b2 1.693 43 Connetion for Clogging Indicator G - 1/ 2" Model b1 – – 2.750 RFM 330F 69.9 – RFM 500G – 2.750 RFM 500F 69.9 d4 RFM 330G h1 b2 d3 – SAE-24 (17/8-12UN-2B) – 1.406 1.57 35.7 40 – SAE-24 (17/8-12UN-2B) – 1.406 1.57 35.7 40 ø 4.80 122 6.10 155 2" NPT Outlet 8.27 210 Model RFM 330G RFM 330F RFM 500G RFM 500F d4 – 1/2-13UNC-2B – 1/2-13UNC-2B h1 h4 6.77 10.43 172 265 9.96 11.22 253 285 ø 7.28 185 3.858 98 .47 12 3.425 87 Dimensions in Inches/Millimeters Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requesting a certified print. 9 Dimensions: RFM 661/851 ø 2.50 62 Inlet h 4 Clearance for Element Removal 3.500 88.9 2.000 50.8 2.165 55 4.96 126 Connection for Clogging Indicator G - 1/2" 1/2-13UNC-2B h1 ø 6.50 165 7.87 200 .53 ø 13.5 2 1 / 2 " BSPP Outlet 9.92 252 ø 8.661 220 4.764 121 8.62 219 4.331 110 Model RFM 661F RFM 851F Dimensions in Inches/Millimeters Dimensions are for general information only. Due to constant development and updating of details, we ask that all critical dimensions be verified by requesting a certified print. 10 h1 11.81 300 15.00 381 h4 13.39 340 16.54 420 Notes: 11 AUSTRALIA HYDAC Pty Ltd. 331 La Trobe Street AUS-Melbourne, 3000 Postal Address: P.O. Box 1277 L AUS-G.P.O. Melbourne, 3001 Tel: 3 / 96 70 86 09 + 96 70 80 45 Fax: 3 / 96 42 15 82 BRAZIL HYDAC Limitada Rua 12 de Outubro, no. 421 CEP 09941-210-Jd. Canhema DIADEMA-SP, Brazil Tel / Fax: 011 / 4071-2253 CHILE MAURICIO HOCHSCHILD S.A.I.C. Avenida Senador Jaime Guzman 3535 Renca-Santiago / Chile Tel: 2 / 6 41 44 91, 6 41 11 95 Fax: 2 / 6 41 13 23 Telex: 242 565 CHINA HYDAC Technology (Shanghai) Ltd. 271 Luchun Road Shanghai Minhang Economic & Technological Development Zone Shanghai 200245 Tel: 21 / 64633510 Fax: 21 / 64300257 EGYPT Yasser Fahmy Hydraulic Eng. 65-66-68 Saudi Building, Kobba P.O. Box 6550 Sawah 11813 Cairo, Egypt Tel: 2 / 45 20 192, 45 30 922, 45 30 0923 Fax: 2 / 45 30 638 INDIA HYDAC HYCOM INDIA PVT. Ltd. 114, Mahavir Industrial Estate Opp. Ravi Industrial Estate Off Mahakali Caves Road Andheri (E) IND-Bombay 400 093 Tel: 22 / 8386223 Fax: 22 / 8386223 IRAN Iran Hydraulic Systems Co. Ltd. 310, Mirdamad Ave. Bazar Bozorg Mirdamad P.O. Box 19395-3636 IR-Teheran Tel: 21 / 8 88 35 18 Fax: 21 / 8 88 90 89 Telex: 213636, Attn. D5067 JAPAN Soken Kogyo Co. Ltd. 4-15-3 Matsue Edogawa-ku Tokyo/Japan Tel: 03-3653-0579 Fax: 03-3653-7923 MEXICO Herlo Hidraulica, S.A. Calzada Vallejo No. 923 Col. Nueva Industrial Vallejo C.P. 07750 Mexico, D.F. Mexico Tel: 5 / 567-5400 Fax: 5 / 567-5554 SINGAPORE Hydac Technology Pte Ltd. 32 Kallang Pudding Road # 06-05 Elite Industrial Building 1 Singapore 349313 Tel: 741 / 7458 Fax: 741 / 0434 SOUTH-AFRICA (Namibia, Zimbabwe) Hytec of Southern Africa (Pty) Ltd. P.O. Box 8 ZA-Maraisburg, 1700 (Transvaal) South Africa Tel: 11 / 6731210, 6732213 Fax: 11 / 6730212 THAILAND Pneumax Co., Ltd. 2447/5 New Petburi Road Near Ekamai Junction Bangkapi, Huaykwang T-10310 Bangkok Tel: 2 / 3181972, 3180086 Fax: 2 / 3198180 Aerofluid Co. Ltd. 600/441 Moo 14, Paholyothin Rd. LAMLOOKKA PATUMTHANEE 12130 Tel: 2 / 536-7129, 536-7153, 536-8069, 536-8070, 536-6228, 992-1644-7 Fax: 2 / 536-7131 HYDAC TECHNOLOGY CORPORATION 2260 City Line Road • Bethlehem, PA 18017 Phone (610) 266-0100 • Fax (610) 264-3540 www.hydacusa.com • [email protected] © Copyright 1999 HYDAC TECHNOLOGY CORPORATION - Brochure - In-Tank Return Line Filters RFM Series #02068151 / 7.99 RC ET IND IR J MEX SGP ZA NL SK E S CH AUS WORLDWIDE BR AUSTRIA (Bulgaria, Slovenia, Croatia, Rest of Yugoslavia, Romania) HYDAC Hydraulik Ges. m.b.H. Industriestr. 3 A-4066 Pasching Tel: 0 72 29 / 6 18 11-0 Fax: 0 72 29 / 6 18 11-35 Teletex: (0 61) 3 73 24 48 CZECH. REPUBLIC HYDAC spol. s.r.o. Chỳnovskà 535 39111 Planà nad Luznici Tel: 361 / 891412, 891424, 891570 Fax: 361 / 891270 FINLAND HYDAC OY Martinkyläntie 67 FIN-01720 Vantaa Tel: 03 58-9 / 8 54 50 50 Fax: 03 58-9 / 85 45 05 20 FRANCE HYDAC S.à.r.l. Zone Industrielle du Heid Rue R. Schumann F-57350 Stiring-Wendel Tel: 03 87 29 26 00 Fax: 03 87 85 90 81 GREAT BRITAIN HYDAC-FLUPAC Limited Woodstock Road Charlbury, Oxfordshire OX7 3ES Tel: 0 16 08 / 81 12 11 Fax: 0 16 08 / 81 12 59 E-mail: [email protected] GREECE AUTOMATION SYSTEM S.A.. Spirou Patsi 62 GR-11855 Athens Tel: 1 / 3 41 16 00 Fax: 1 / 3 42 27 59 Telex: 226892 chat gr HUNGARY HYDAC Hidraulika és Szüréstechnika Kft. Dolma ny u 18-20 H-1131 Budapest Tel:/Fax: 27 / 34 68 21 ITALY Rual S.p.a. Via Copernico 8 1-20060 Cassina de Pecchi (Mi) Tel: 2 / 95 34 30 92 Fax: 2 / 95 34 43 57 LUXEMBOURG FRIEDERICH-HYDROPART S.A.R.L. Route d’Esch C.P. 38 L-3801 Schifflange Tel: 54 52 44 Fax: 54 52 48 Telex: 1236 cried lu RCH I H GR GB F FIN CZ A EUROPE NETHERLANDS HYDAC B.V. Postbus 447 NL-5700 AK Helmond Panovenweg 41 NL-5708 HR Helmond Tel: (0) 4 92 / 52 88 38 Fax: (0) 4 92 / 52 75 74 POLAND HYDAC Sp. z o.o. ul. Reymonta PL-43-190 Mikolow Tel: 32 / 1 26 26 55 Fax: 32 / 1 26 27 09 Telex: 312981 hydac pl PORTUGAL Gustavo Cudell Lda. Rua Eng. Ferreira Dias, 954 P-4100 Porto Tel: 2 / 6102004 Fax: 2 / 6103070 Telex: 27271 MOVICONTROL LDA Praca Pedra Verde, 217-222 P-4100 Porto Tel: 2 / 6104176 Fax: 2 / 6104475 Telex: 29192 movipo SLOVAKIA HYDAC, s.r.o. Schmidtova 14 03601 Martin Tel: 842 / 35893 Fax: 842 / 35894 SPAIN Bultz S.A. Paseo de Arriola, 15 E-20009 San Sebastian Tel: 43 / 217000 Fax: 43 / 217207 Telex: 36540 SWEDEN HYDAC Fluidteknik AB Karlsbodavägen 41, Mariehäll Box 20112 S-16102 Bromma Tel: 8 / 980220 Fax: 8 / 987 422 SWITZERLAND RUAL S.A. Hydraulics Via Cantonale 69 CH-6964 Davesco-Lugano Tel: 91 / 935 00 80 Fax: 91 / 942 38 84 RUAL S.A. - T.B. Bern Zentweg 21 CH-3006 Bern Tel: 31 / 9 31 62 44 Fax: 31 / 9 31 66 42 RUAL S.A. - T.B. St. Gallen Langgasse 91 CH-9008 St. Gallen Tel: 71 / 2 42 66 77 Fax: 71 / 2 45 27 90 T CANADA HYDAC Corporation 14 Federal Road CDN-Welland, Ontario L3B 3P2 Tel: (905) 714-9322 Fax: (905) 714-4664 PL USA HYDAC TECHNOLOGY CORPORATION HYCON Division 2260 City Line Road Bethlehem, PA 18017 Postal address: P.O. Box 22050 Lehigh Valley, PA 18002-2050 Tel: (610) 266-0100 Fax: (610) 264-3540 P D GERMANY HYDAC Filtertechnik GmbH Postfach 1251 D-66273 Sulzbach/Saar Industriegebiet D-66280 Sulzbach/Saar Tel: 0 68 97 / 509-01 Fax: 0 68 97 / 509-300 (tech. depart.) 0 68 97 / 509-300 (sales) HYDAC Technology GmbH Postfach 1251 D-66273 Sulzbach/Saar Industriegebiet D-66280 Sulzbach/Saar Tel: 0 68 97 / 509-01 Fax: 0 68 97 / 509-454 Telex: 4 429 331 L USA UNITED STATES AND CANADA