STAUFF STAUFF. Local solutions for individual customers worldwide. Return Line Filters RTF FILTRATION TECHNOLOGY. Ordering Code # :SFT A - UK

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1 STAUFF THIS IS STAUFF RESPONSE AND FLEXIBILITY COMPETENT SERVICE PROMPT DELIVERY ENSURED QUALITY FRIENDLY SERVICE PROVEN IN PRACTICE Australia Stauff Corporation (Pty.) Ltd. P.O.Box 227, Unanderra Wollongong, N.S.W, Doyle Avenue, Unanderra Wollongong, N.S.W, 252 AUSTRALIA Tel: Fax: FILTRATION TECHNOLOGY Brazil Stauff Brasil Ltda. Av. Gupê 177 Galpão 2 Bloco A Barueri São Paulo CEP , BRAZIL Tel: +55 () Fax: +55 () Canada Stauff Canada Ltd. 8 Milner Avenue Scarborough, Ontario M1B 5N7, CANADA Tel: Fax: China Stauff International Trading (Shanghai) Co., Ltd. Shangdian Mansion, Pudong 1, Binzhou Road 212 Shanghai, CHINA Tel: Fax: France Stauff S.A. 2, Avenue du Grain d Or Z.I. de Vineuil-Blois Sud 4154 Vineuil-cedex, FRANCE Tel: Fax: Germany Walter Stauffenberg GmbH & Co. KG P.O. Box 1745, Werdohl Im Ehrenfeld 4, Werdohl GERMANY Tel: Fax: India Stauff India Pvt. Ltd. Gat. No. 24 Pune-Nagar Road, Wagholi Pune, 41227, INDIA Tel: Fax: Italy Stauff Italia S.R.L. Via Pola 21/2 24 Birone di Giussano (MI), ITALY Tel: Fax: New Zealand Stauff Corporation (NZ) Ltd. P.O. Box 58517, Greenmount, Auckland Unit J. 15 Harris Road, East Tamaki, Auckland NEW ZEALAND Tel: Fax: United Kingdom Stauff UK 2, Coleford Road, Darnall Sheffield, S 9 5PH, ENGLAND Tel: Fax: USA Stauff Corporation 7 Wm. Demarest Place Waldwick, , New Jersey, USA Tel: Fax: Globally available through distributors in all industrial countries Stauff 24 KLD&DMP Ordering Code # :SFT A - UK STAUFF Return Line Filters RTF Local solutions for individual customers worldwide

2 Return Line Filters RTF Australia Stauff Corporation Pty. Ltd. Postal Office Box 227 Unanderra Wollongong, NSW, Doyle Avenue Unanderra Wollongong, NSW, 252, AUSTRALIA Tel: Fax: Brazil Stauff Brasil Ltda. Av. Gupê 177 Galpão 2 Bloco A Barueri São Paulo CEP , BRAZIL Tel: +55 () Fax: +55 () Canada Stauff Canada Ltd. 8 Milner Avenue Scarborough Ontario M1B 5N7, CANADA Tel: Fax: China Stauff International Trading (Shanghai) Co., Ltd. Shangdian Mansion, Pudong 1, Binzhou Road 212 Shanghai, CHINA Tel: Fax: France Stauff S.A. 2, Avenue du Grain d Or Z.I. de Vineuil-Blois Sud 4154 Vineuil-cedex, FRANCE Tel: Fax: India Stauff India Pvt. Ltd. Gat. No. 24, Pune-Nagar Road, Wagholi Pune, 41227, INDIA Tel: Fax: Italy Stauff Italia S.R.L. Via Pola 21/2, 24 Birone di Giussano (MI), ITALY Tel: Fax: New Zealand Stauff Corporation (NZ) Ltd. Post Office Box Greenmount, Auckland Unit J, 15 Harris Road East Tamaki, Auckland NEW ZEALAND Tel: Fax: United Kingdom Stauff UK 2, Coleford Road Darnall Sheffield, S 9 5PH, ENGLAND Tel: Fax: USA Stauff Corporation 7 Wm. Demarest Place Waldwick, New Jersey, USA Tel: Fax: Distributors and warehouses in all industrial countries. Walter Stauffenberg GmbH & Co. KG P. O. Box Werdohl Im Ehrenfeld Werdohl Tel.: Fax: sales@stauff.com Internet: stauff.com Stauff Filtration Technology Stauff Filtration Technology offers a complete range of filtration products and services that will provide the system designer or user with the highest level of contamination control demanded by today s most sophisticated applications. Products include pressure filters, return line filters, elements, spin on filters suction strainers and filler breathers for various hydraulic, lubrication and fuel oils. Stauff has the technical expertise to provide superior filter element designs for the Stauff original filter housings and also for the interchange element market. Stauff manufactures more than 1, different elements. Many of these are designed to fit into filter housings produced by other companies while maintaining or surpassing the original performance. The Stauff Contamination Control Program includes the diagnostic services including fluid sampling and laser particle counting products needed to monitor the system contamination level. Stauff, through its global network of wholly owned companies and technically qualified distributors, is ideally placed to assist its customers in the total contamination process providing a well balanced filtration solution. Return Line Filter RTF 1/25 Page Technical Data Dimensions 4 Ordering Code & Flow Characteristics 5 Return Line Filter RTF 4 Series Technical Data Dimensions 7 Ordering Code 8 Flow Characteristics 9 Return Line Filter RTF 2 Series Technical Data 1 Dimensions 11 Ordering Code 12 Flow Characteristics 1 Return Line Filter RTF Series Technical Data 14 Dimensions 15 Ordering Code 1 Flow Characteristics 17 Clogging Indicators 18 2

3 Return Line Filter RTF 1/25 Technical Data Technical Data STAUFF RTF 1/25 series return line filters are designed for in-line hydraulic applications with a maximum operating pressure of.4 bar (5 PSI). Technical Specification Construction Filter head Element bowl Tank top flange mounting Die cast aluminum Polyamide Seals O -Rings NBR (Buna-N ), FPM (Viton ) Port connections Flow rating Operating Pressure Test pressure BSP, NPT, SAE- O -Ring thread up to 95 l/min (25 US GPM) for 2 cst (15 SUS) fluids max.4 bar (5 PSI) min.8 bar (1 PSI) By-pass valve (integrated in the filter element) Clogging indicators Allows unfiltered oil to by-pass the contaminated element once the opening pressure has been reached Opening pressure: 1.7 bar (25 PSI) Gauge indicator -.9 bar (-1 PSI) with coloured segments; Electrical, bar (5-5 PSI) adjustable Elements Flow characteristics see page 5 Media Mineral oils, other fluids on request Temperature range -25ºC to +1ºC (-1 F to +212ºF)

4 ød Return Line Filter RTF 1/25 Dimensions Dimensions b1 h h4 h5 h2 G h1 ød2 ød1 G 1 /8 or 1 /8 NPT port for clogging indicator b2 Dimensions RTF 1/25 Filters All dimensions in mm (inch) Thread connection G Weight Filter SAE- O Bowl Size BSP NPT Ring length h1 h2 h h4 h5 b1 b2 d1 d2 d kg lbs RTF 1 G 1 /2 1 /2 N/A S ,45 1 (1,2) (,8) (,4) (5,24) (,2) (1,97) (,54) (2,) (,94) (,28) RTF 25 G /1-12 UNF S ,9 2 (1,4) (1,14) (4,1) (,9) (,9) (2,4) (4,5) (,9) (1,1) (,5) RTF 25 G /1-12 UNF S ,2 (1,4) (1,14) (5,91) (8,4) (,9) (2,4) (4,5) (,9) (1,1) (,5) 4

5 Return Line Filters RTF 1/25 Ordering Code & Flow Characteristics RTF 25 N... B S2 V /X Filter type Group RTF Size Flow* l/min GPM * Note Exact flow will depend on filter element selected. Consult technical information below. Connection style Group Code Connection style 1 25 B BSP G 1 /2 G1 N NPT 1 /2 1 S SAE O -Ring thread N/A 1 5 /1-12UN For complete filters: identification filter material + micron rating code (see ordering code filter elements below) Design Code only for information Clogging Indicator N No Indicator V Visual E Electrical See page 18 for more details on the indicator options. Length S1 Bowl length 1 S2 Bowl length 2 RTF 1 size available in bowl length 1 only Seal material B NBR (Buna-N ) Series RTE Group according to filter housing Filter material Code Material D Filterpaper G Inorganic glass fiber Micron ratings available 1, 2, 25, 1, 25 RTE-25 D 1 B / S2 /X Design Code only for information Length S1 for bowl length 1 S2 for bowl length 2 RTF 1 size available in bowl length 1 only Seal material B NBR (Buna-N ) Flow characteristics of return Line Filters RTF 1/25 Micron rating Code Rating 1 1 µm 2 2 µm µm The following characteristics ar valid for mineral oils with a density of,85 kg/dm and the kinematic viscosity of mm 2 /s. The characteristics have been determined in accordance to ISO Filter Housing RTF 1/25 Series RTE-1 D1S RTE-25 G1S2 D1S2 D25S /

6 Return Line Filter RTF 4 Technical Data Technical Data STAUFF RTF 4 series return filters are designed as tank tank top filters with a maximum operating pressure of.9 bar (1 PSI). The filter bowl is designed to return the oil beneath the surface thus preventing entrainment of air. The RTF48 elements interchange with the popular Schröder- K - series and the RTF49 elements interchange with the Zinga- RTE series elements. Technical Specification Construction Filter head Element bowl Tank top flange mounting Die cast aluminum Bowl length 1, Polyamide Bowl length 2, Steel Seals O -Rings NBR (Buna-N ) Port connections Flow rating Operating Pressure Temperature range BSP, NPT, SAE- O -Ring thread, SAE flange up to 79 l/min (1 US GPM) for 2cSt (15 SUS) fluids max.9 bar (1 PSI) -25ºC to +95ºC (-1 F to +212ºF) By-pass valve By-pass setting Clogging indicators Allows unfiltered oil to by-pass the contaminated element once the opening pressure has been reached 1.7 bar (25 PSI) (by-pass in element for RTF47, by-pass in head for RTF48 and RTF49) Gauge indicator -.9 bar (-1 PSI) with coloured segments; electrical, bar (5-5 PSI) adjustable Elements Flow characteristics see page 9 Media Mineral oils, other fluids on request

7 Return Line Filter RTF 4 Dimensions Dimensions ød Port B (optional) Port A ød2 h1 b4 h2 G 1 /8 or 1 /8 NPT port for clogging indicator (both sides) b h5 h h4 h Mounting detail (bottom view) ød4 G ød1 d b2 b5 b1 Dimensions RTF 4 Filters All dimensions in mm (inch) Bowl NPT & Length h1 h2 h h4 h5 h b1 b2 b b4 b5 b d1 BSP SAE d d4 G d2 S (2,9) (4,8) (1,5) (15,1) (,8) ,9 5, M12 /2-1 8,1 11 (,4) (5,98) (5,98) (2,75) (1,4) (4,41) (4,41) (4,8) UN 2B (1,5) (,4) G1-1 /2 or S (18,7) (2,5) (1,5) 1-1 /2 NPT 7

8 Return Line Filter RTF 4 Ordering Code RTF 48 N B / S2 / V /X Filter type RTF47 RTF48 RTF49 Design Code only for information Connection style Group Code Connection style Port A Port B B BSP G1-1 /4 & 1-1 /2 SAE flange None BB BSP G1-1 /4 & 1-1 /2 SAE flange G1-1 /4 N NPT 1-1 /4 NPT & 1-1 /2 SAE flange None NN NPT 1-1 /4 NPT & 1-1 /2 SAE flange 1-1 /4 NPT M NPT 1-1 /2 NPT None MN NPT 1-1 /2 NPT 1-1 /4 NPT MM NPT 1-1 /2 NPT 1-1 /2NPT S SAE 1-5 /8-12 UN None SS SAE 1-5 /8-12 UN 1-5 /8-12 UN ST SAE 1-5 /8-12 UN 1-7 /8-12 UN SU SAE 1-5 /8-12 UN 2-1 /2-12 UN SO Combination 1-5 /8-12 UN 2 NPT Clogging indicator N None V Visual E Electrical See page 18 for more details on the indicator options. Length S1 for bowl length 1 (1 element) S2 for bowl length 2 (2 elements) Note: RTF 47 available in S1 bowl length only Seal material B NBR (Buna-N ) other seal material on request For complete filters: identification filter material + micron rating code (see ordering code filter elements below) By-pass valve Code By-pass setting No by-pass 15 1 bar (15 PSI) bar (25 PSI) RTE-48 D 1 B /X Group according to filter housing Design Code only for information Filter material Code Material D Filterpaper G Inorganic glass fiber Micron ratings available, 1, 2, 25, 1, 25 Seal material B NBR (Buna-N ) other seal material on request Micron rating Code Rating µm 1 1 µm 2 2 µm µm 8

9 Return Line Filter RTF 4 Flow Characteristics Flow Characteristics of Return Line Filters RTF 4 The following characteristics are valid for mineral oils with a density of,85 kg/dm and the kinematic viscosity of mm 2 /s. The characteristics have been determined in accordance to ISO Filter Housings RTF RTE-47D G1 D1 2. RTE-48D D 2. RTE-49D D D D1 1 2 D D RTE-47G G1 2. RTE-48G 2. RTE-49G G 12.8 G.1.4 G1 G2.4 G1 G

10 Return Line Filter RTF2 Technical Data Technical Data STAUFF RTF2 series return filters are designed as tank top filters with a maximum operating pressure of 1 bar (145 PSI) and flows up to 115 l/min ( US GPM). The filter bowl is designed to return the oil beneath the surface thus preventing entrainment of air. RTF2 series compact design and integral breather make them ideal for mobile hydraulic applications. Technical Specification Construction Tank top flange mounting Integrated Breather Filterpaper 1 or 4 µm Filter head Element bowl and screw cap Die cast aluminium Polyamide Seals O -Rings NBR (Buna-N ), FPM (Viton ) By-pass valve (integrated in the filter element) Allows unfiltered oil to by-pass the contaminated element once the opening pressure has been reached Opening pressure 1.7 bar (25 PSI) Port connections Flow rating BSP, NPT, SAE O -Ring thread up to 115 l/min ( US GPM) for 2 cst (15 SUS) fluids Clogging indicators Gauge indicator -.9 bar (-1 PSI) with coloured segments Electrical, bar (5-5 PSI) adjustable Operating pressure max 1 bar (145 PSI) Filter elements Flow characteristics see page 1 Test pressure Temperature range min 24 bar (5 PSI) -25 C to +1 C (-1 F to +212 F) Media Mineral oils, other fluids on request 1

11 Return Line Filter RTF2 Dimensions Dimensions ø75 (2,95) 1 /2 or /4 BSP, NPT or SAE port 2 (,7) 22 (7,95) 11 (,4) 77 (,) 178 (7,1) 24 (,94) 41 (1,1) G 1 /8 or 1 /8 NPT port for clogging indicator (both sides) ø1,5 ± 1,5 (2,42 ± ) 1 (,) ø28 (1,1) Mounting detail (bottom view) 88 5 (1,97) 7 (2,7) (,4) 82 (,2) Dimensions in mm (inch) 11

12 Return Line Filter RTF2 Ordering Code Ordering Code Filter Housings RTF 2 N1... B V B1 D /X Filter type RTF2 Design Code only for information Connection Style Code Connection Style B1 BSP G 1 /2 B2 BSP G /4 N1 NPT 1 /2 N2 NPT /4 S1 SAE- O - Ring Thread /4-1 UN S2 SAE- O - Ring Thread 1 1 /1-12 UN For complete filters: identification filter material + micron rating code (see ordering code filter elements below) Dipstick - without dipstick D dipstick Breather B1 1 µm Filterpaper B4 4 µm Filterpaper Clogging indicator N without clogging indicator V visual E electrical See page 18 for more details on the indicator options. Seal material B NBR (Buna-N ) V FPM (Viton ) Ordering Code RTE-2 D 1 B /X Series RTE-2 Design Code only for information Filter material Micron ratings Code Material available D Filterpaper 1 G Inorganic glass fiber, 1, 2 Seal material B NBR (Buna-N ) V FPM (Viton ) Micron rating Code Rating µm 1 1 µm 2 2 µm 12

13 Return Line Filter RTF2 Flow Characteristics Flow Characteristics The following characteristics are valid for mineral based fluids with a density of,85 kg/dm and the kinematic viscosity of mm 2 /s. The characteristics have been determined in accordance to ISO Filter Housing RTF G G1 RTE-2 G2 D Filter Breather RTF 2 B1 B /2 /

14 Return Line Filter RTF Technical Data Technical Data STAUFF RTF series return filters are designed as tank top filters with a maximum operating pressure of 1 bar (145 PSI) and flows up to 152 l/min (4 US GPM). The filter bowl is designed to return the oil beneath the surface thus preventing entrainment of air. RTF series compact design and integral breather makes them ideal for mobile hydraulic applications. Technical Specification Construction Tank top flange mounting Integrated Breather Filterpaper 1 or 4 µm Filter head Element bowl and screw cap Die cast aluminium Polyamide Seals O -Rings NBR (Buna-N ), FPM (Viton ) Port connections Flow rating BSP, NPT, SAE O -Ring thread up to 152 l/min (4 US GPM) for 2 cst (15 SUS) fluids By-pass valve (integrated in the filter element) Clogging indicators Allows unfiltered oil to by-pass the contaminated element once the opening pressure has been reached Opening pressure 1.7 bar (25 PSI) Gauge indicator -.9 bar (-1 PSI) with coloured segments; Electrical, bar (5-5 PSI) adjustable Operating pressure max 1 bar (145 PSI) Filter elements Flow characteristics see page 17 Test pressure Temperature range min 24 bar (5 PSI) -25 C to +1 C (-1 F to +212 F) Media Mineral oils, other fluids on request 14

15 Return Line Filter RTF Dimensions Dimensions ød1 /4 or 1 BSP, NPT or SAE ports h h2 h h4 h1 G 1 /8 or 1 /8 NPT port for clogging indicator (both sides) ød h5 ød2 Mounting detail (bottom view) b7 b b5 b b1 b2 b4 Dimensions RTF Filters Dimensions in mm (inch) Filter Size Dimensions h1 h2 h h4 h5 h d1 d2 d b1 b2 b b4 b5 b b7 RTF RTF1 RTF (5,51) (4,) min 87 min ,5 14 max max 91 1 (2,) (8,7) (,89) (1,18) (,87) (,) (4,9) (1,42) (min,4) (2,7) (,27) (4,) (4,5) (,4) (min,4) (4,) (max,58) (max,58) (12,1) (1,8) 15

16 Return Line Filter RTF Ordering Code Ordering Code Filter Housings RTF 1 N1... B V B1 D /X Filter Type RTF 11mm (4, in) bowl length RTF1 175mm (,89 in) bowl length RTF2 275mm (1,8 in) bowl length Connection Style Code Connection Style B1 BSP /4 B2 BSP 1 N1 NPT /4 N2 NPT 1 S1 SAE O-Ring Thread 1-1 /1-12 UN S2 SAE O-Ring Thread 1-5 /1-12 UN For complete filters: identification filter material + micron rating code (see ordering code filter elements below) Design Code only for information Dipstick - without dipstick D dipstick Breather B1 1 µm Filterpaper B4 4 µm Filterpaper Clogging indicator N without clogging indicator V visual E electrical See page 18 for more details on the indicator options. Seal material B NBR (Buna-N ) V FPM (Viton ) Ordering Code RTE-1 D 1 B /X Series RTE Group according to filter housing Filter material Micron ratings Code Material available D Filterpaper 1 G Inorganic glass fiber, 1, 2 Design Code only for information Seal material B NBR (Buna-N ) V FPM (Viton ) Micron rating Code Rating µm 1 1 µm 2 2 µm 1

17 Return Line Filter RTF Flow Characteristics Flow Characteristics The following characteristics are valid for mineral based fluids with a density of,85 kg/dm and the kinematic viscosity of mm 2 /s. The characteristics have been determined in accordance to ISO Filter Housings RTF /1/ / RTE- G G1 D1 G RTE-1 G G1 D RTE-2 G G1 D1.2.2 G2.2 G ,5 12 1,2 Filter Breather RTF /1/2 B1 B4 9,9,,

18 Clogging Indicator Visual Indicators Vacuum Gauges (for suction line applications) yellow Type Scale Actuating pressure Coloured Segments Connection for filter with green yellow red thread G By-pass valve GV-2B bar bar bar bar.2 bar G 1/8 GV-5B bar bar bar bar.5 bar G 1/8 GV-5... in Hg...4 in Hg 4... in Hg... in Hg PSI 1/8 NPT GV-1... in Hg...9 in Hg in Hg in Hg 5 PSI 1/8 NPT SIS...7 in Hg...1 in Hg in Hg in Hg 5 PSI G 1/8 green red red yellow green Pressure Gauges (for return line applications) Type Scale Actuating pressure Coloured Segments Connection for filter with thread G green yellow red By-pass valve CI-1B bar...8 bar bar bar 1. bar G 1/8 CI-17B bar... bar bar bar 1.7 bar G 1/8 CI PSI...1 PSI PSI PSI 15 PSI 1/8 NPT CI PSI...21 PSI PSI PSI 25 PSI 1/8 NPT SIM bar without coloured segments 1.7 bar G 1/8 SIM bar bar bar...4 bar 1.7 bar G 1/8 SIM bar bar bar bar 1.7 bar G 1/8 Electrical Indicators Type Used as Adjustable range / Maximum for Filter Connection actuating pressure over pressure Type thread G EPS-1B Pressure Gauge bar 25 bar Return Line Filter G 1/8 EPS-1 Pressure Gauge PSI 5 PSI Return Line Filter G 1/8 SIE-NO Electrical Switch 1. bar (make contact) 8 bar Return Line Filter G 1/8 SIE-NC Electrical Switch 1. bar (break contact) 8 bar Return Line Filter G 1/8 EVS-1B Vacuum Gauge mbar 25 bar Suction Line Filter 1/8 NPT EVS-1 Vacuum Gauge 5... in Hg 5 PSI Suction Line Filter 1/8 NPT Type EPS / EVS Type SIE Type GV / CI Type SIM / SIS ø4 (1.4) 47 (1.8).7 (1.21) 4 (8) (1.18) 47 (1.85) 1 (1.22) 8.5 (2) ø 8.1 (1,5) G ø 4 (1,58) G SW 24 1 (.9) G G Material brass for internal sensor unit Material brass for internal sensor unit Can be field installed All dimensions in mm (inch) Technical Data Type EPS-1 (pressure gauge) Electrical data 7Amp 125/25 VAC Type EVS-1 (vacuum gauge) Protection DIN 45 IP5 Temperature Range -4 C to C (-4 F F)Ambient & Media Diaphragm Material Epichlorohydrin Housing Material Steel, Zinc Plated (Standard) Aluminum Adjustable range Bar (5...5 PSI) mbar (5... in Hg) Dead Band 2% FS 25% FS Weight.11 Kg (.2 lb).25 Kg (.5 lb) Repeatability ±2% at 2 C (7 F) Ambient Temperature Hirschmann Connector With Strain Relief Electrical Type SIE (Electrical switch) 48 V Protection DIN 45 IP 54 Temperature Range Diaphragm Material Housing Material Actuating pressure Max current (res.) -5 C to... + C (2 F F)Ambient & Media NBR Brass 1, bar (19 PSI),5 A Max current (ind.),2 A available as make contact (closes contact at actuating pressure) and as break contact (opens contact at actuating pressure) 18

19 Notes