SDS4 Sectional directional control valve
SDS4 Features Sectional directional control valve for high flow, available for fixed displacements hydraulic pumps. From to work sections Open centre Optional carry-over port Main pilot relief valve on inlet cover and load check valve on every section Available wide range of port valves Available manual and hydraulic control kits Diameter 3 mm (.8 in) interchangeable spools Additional information his catalogue shows the product in the most standard configurations. lease contact our Sales Dpt. for more detailed information or special requests. WARNING! All specifications of this catalogue refer to the standard product at this date. Walvoil, oriented to a continuous improvement, reserves the right to discontinue, modify or revise the specifications without notice. WALVOIL IS NO RESONSIBLE FOR ANY DAMAGE CAUSED BY AN INCORREC USE OF HE RODUC. 8 th edition April 7 DWWEB3E
SDS4 Index SDS4 - Valve general information Working conditions...page 4 Standard threads...page 4 Dimensional data...page 5 erformance data...page 5 Hydraulic circuit...page 6 Complete sections ordering codes...page 8 - Inlet section arts ordering codes... page Dimensional data and hydraulic circuit... page Inlet relief options.................... page - Working section arts ordering codes (mechanical control)... page 4 arts ordering codes (prop. hydraulic control). page 6 Dimensional data and hydraulic circuit... page 7 Spools... page 8 A side spool positioners... page B side options... page Complete controls... page 3 ort valves... page 5 - Intermediate section CS mid return manifold section... page 7 - Outlet section arts ordering codes... page 8 Dimensional data and hydraulic circuit... page 8 - Installation and maintenance... page 9 - Accessories... page 3 DWWEB3E 3
SDS4 valve general informations Working conditions his catalogue shows technical specifications and diagrams measured with mineral oil of 46mm /s - 46 cst viscosity at 4 C - 4 F temperature. Nominal flow rating 4 l/min 5 US gpm Max. pressure () inlet port and working ports A and B 35 bar 46 psi Max back pressure outlet port 5 bar 36 psi Internal leakage A(B) Fluid Fluid temperature p = bar - 45 psi 5 cm 3 /min.53 in 3 /min With port valves p = bar - 45 psi 3 cm 3 /min.83 in 3 /min olio a base minerale with NBR (BUNA-N) seals from - C to 8 C from -4 F to 76 F with FM (VION) seals from - C to C from -4 F to F operating range from 5 to 75 mm /s from 5 to 75 cst Viscosity min. mm s cst max. 4 mm s 4 cst Max. contamination level -/9/6 - ISO 446 NAS 638 - class Ambient temperature for working conditions with mechanical devices from -4 C to 6 C from -4 F to 4 F with Hydraulic devices from -3 C to 6 C from - F to 4 F ie rod tightening torque 3 Nm 96 lbft NOE - ( ) Intermittent pressure at max. million cycles with specific internal testing. Standard threads REFERENCE SANDARD BS UN-UNF Flange connection HREAD ACCORDING O CAVIY DIMENSION ACCORDING O ISO 8/ ISO 63 ISO 66 BS 779 ANSI B. unified SAE J58 ISO 79-96- SAE J96- SAE J58 code 6 DIN 385- shape X or Y ISO 66- ORS HREADING MAIN ORS BS UN-UNF flange connection (bolts threading) ISO66- (type ) SAE J58 code 6 Inlet G / 7/8- (SAE 4) DN 38 (M) -/ (/-3 UNC) Inlet G /4 5/8- (SAE ) - - ort A and B G /4 5/8- (SAE ) DN 3 (M) -/4 (7/6-4 UNC) Outlet G / 7/8- (SAE 4) DN 38 (M) -/ (/-3 UNC) Outlet G / 7/8- (SAE 4) DN 3 (M) -/4 (7/6-4 UNC) Outlet G / 7/8- (SAE 4) DN 3 (M) -/4 (7/6-4 UNC) M G /4 9/6-8 (SAE 6) G /4 9/6-8 (SAE 6) ILO ORS Hydraulic G 3/8 3/4-6 (SAE 8) G 3/8 9/6-8 (SAE 8) 4 DWWEB3E
valve general informations SDS4 Dimensional data E F 76.5 3. 74.9 74.9 6. 4.8 66.8.63 9.7.7 4.57 4. 4. 4.55 4.55 85 7.8 4 8.3 3 9.3 3 9.5 84.3 3.3 7.9.79 A A A3 B B B3 Ø 3 Ø.5 4 6.6 66.8 6.57 8.3 NOE: Drawings and dimensions are referred to BS thread configuration. YE E F Weight mm in mm in Kg lb SDS4/ 47 9.7. 8.7 44 97 SDS4/ 3.64 95..6 6.5 33.4 SDS4/3 395 5.55 369. 4.53 77 69.8 SDS4/4 469 8.46 443. 7.45 93.5 6. SDS4/5 543.37 57..36 4.5 YE E F Weight mm in mm in Kg lb SDS4/6 67 4.9 59. 3.7 6.5 78.9 SDS4/7 69 7. 665. 6.9 43 35.3 SDS4/8 765 3. 739. 9. 59.5 35.6 SDS4/9 839 33.3 83. 3. 76 388 SDS4/ 93 35.94 887. 34.93 9.5 44.4 erformance data ressure pressure drop* 4 6 8 (US gpm) 4 6 8 (US gpm) 4 6 8 (US gpm) 4 (bar) (bar) (bar) 5 5 5 3 5 5 4 A (B) 3 5 5 A (B) A5 (B5) A5 (B5) 5 5 5 A (B) 5 A (B) 3 4 3 4 3 4 (*): Referred to spool 3 sections 5 sections section ressure A(B) pressure drop* ressure A(B) pressure drop* DWWEB3E 5
SDS4 valve general informations Hydraulic circuit arallel circuit Standard configuration. A B A B A3 B3 Description example: SDS4/3/AD(SV)/3-8SL/3-8SL/3-8SL/RD Series-parallel (tandem) circuit A special working section kit is needed. andem section is fed from the free flow pressure line; it s excluded when an up stream section is operated. element 3 spool K element S3 spool A B A B 5 8 Description example: SDS4//AC(XG-5)/3-8SL/K-S3-8SL/RC 6 DWWEB3E
valve general informations SDS4 Hydraulic circuit Series circuit K element S spool K element S3 spool Description example: SDS4/AC(SV)/K-S-8SL/K-S3-8SL/RC Right inlet directional valve B3 A3 B A B A Description example: SDS4/3/BD(SV)/3-8SL/3-8SL/3-8SL/RD DWWEB3E 7
SDS4 valve general informations Complete sections ordering codes Standard configuration with upper inlet and outlet SDS4 / / AD(XG3-5) / 3-8SL / 3-8SL / RD -... - <CVN> Nr. of working sections 3 7 the complete sectional valve can be supplied painted with one coat of rimer black antirust paint 3 8 8 Inlet section * page YE: SDS4/AC(XG3-5) CODE: 6G DESCRIION: With side inlet port and relief valve, and upper ports plugged YE: SDS4/AD(XG3-5) CODE: 6G DESCRIION: With upper inlet port and relief valve, side port and upper port plugged YE: SDS4/ADA-FS3M (XG3-5) CODE: 6G9 DESCRIION: Upper port with ISO66- type, without side inlet, with relief valve Working section * page 4 YE: SDS4/3-8SL CODE: 6G DESCRIION: arallel circuit, double acting without lever, with spring return, arranged for port valves YE: SDS4/K-S3-8SL CODE: 6G3 DESCRIION: Series-parallel circuit, double acting without lever, with spring return, arranged for port valves YE: SDS4/K-S3-8SL CODE: 6G4 DESCRIION: Series circuit, double acting without lever, with spring return, arranged for port valves YE: SDS4/5Y-5RSA3-3SLF CODE: 6G DESCRIION: Floating circuit with spool in, double acting without lever with spring return, arranged for port valves YE: SDS4/5W-5RSB3-3CSL CODE: 6G DESCRIION: Floating circuit with spool out, double acting without lever with spring return, arranged for port valves 3 Outlet section * page 8 YE: SDS4/RC CODE: 6G3 DESCRIION: Side port open, upper port plugged YE: SDS4/RD CODE: 6G3 DESCRIION: Upper port open, side port plugged YE: SDS4/RE CODE: 6G3 DESCRIION: Upper port open and carry-over YE: SDS4/RK CODE: 6G33 DESCRIION: For closed center circuit YE: SDS4/RDA-FS3M CODE: 6G39 DESCRIION: With ISO66- type flange connection, upper port, without side port YE: SDS4/RE-FS3M CODE: 6G39 DESCRIION: With ISO66- type flange connection, upper port, with carry-over 7 orts threading page 4 Specify only if different from standard BS thread (see page 4), for flange connection according to ISO 66- type, indicate: FS3M. NOE (*) Codes are referred to BS thread. 8 DWWEB3E
valve general informations SDS4 Complete sections ordering codes Configuration with upper inlets and mid return manifold SDS4 / / AD(XG3-5) / 5Y-5RSA3-3SLF /CS/ 5W-5RSA3-3SLF / BD(XG3-5) -... Nr. sezioni di lavoro 4 5 6 6 9 5 7 4 9 4 Mid return manifold * page 7 YE CODE DESCRIION CS-FS3M 6G49 Mid return manifold with ISO66- type flange connection 5 Working section for right inlet * YE: SDS4/ED-3-8SL CODE: 6G5 DESCRIION: arallel circuit, double acting without lever, with spring return, arranged for port valves YE: SDS4/K-ED-S3-8SL CODE: 6G6 DESCRIION: Series-parallel circuit, double acting without lever, with spring return, arranged for port valves YE: SDS4/K-ED-S3-8SL CODE: 6G7 DESCRIION: Series circuit, double acting without lever, with spring return, arranged for port valves YE: SDS4/5Y-ED-5RSB3-3CSL CODE: 6G8 DESCRIION: Floating circuit with spool out, double acting without lever, with spring return, arranged for port valves YE: SDS4/5W-ED-5RSA3-3SLF CODE: 6G9 DESCRIION: Floating circuit with spool in, double acting without lever, with spring return, arranged for port valves 6 Right inlet section * YE: SDS4/BC(XG3-5) CODE: 6G DESCRIION: With side inlet port and relief valve, and upper ports plugged YE: SDS4/BD(XG3-5) CODE: 6G3 DESCRIION: With upper inlet port and relief valve, side port and upper port plugged YE: SDS4/BDA-FS3M (XG3-5) CODE: 6G9 DESCRIION: Upper port with ISO66- type flange connection, without side inlet, with relief valve 68 Assemb. kit without intermediate section CODE DESCRIION 5IR674 ie rod kit for working section directional valve 5IR6348 ie rod kit for working sections directional valve 5IR64 ie rod kit for 3 working sections directional valve 5IR6496 ie rod kit for 4 working sections directional valve 5IR657 ie rod kit for 5 working sections directional valve 5IR6644 ie rod kit for 6 working sections directional valve 5IR678 ie rod kit for 7 working sections directional valve 5IR679 ie rod kit for 8 working sections directional valve 5IR6866 ie rod kit for 9 working sections directional valve 5IR694 ie rod kit for working sections directional valve 79 Assemb. kit with intermediate section CODE DESCRIION 5IR6458 ie rod kit for working sections directional valve 5IR653 ie rod kit for 3 working sections directional valve 5IR666 ie rod kit for 4 working sections directional valve 5IR668 ie rod kit for 5 working sections directional valve 5IR6754 ie rod kit for 6 working sections directional valve 5IR688 ie rod kit for 7 working sections directional valve 5IR69 ie rod kit for 8 working sections directional valve 5IR6976 ie rod kit for 9 working sections directional valve 5IR699A ie rod kit for working sections directional valve NOE (*) Codes are referred to BS thread DWWEB3E 9
SDS4 inlet section arts ordering codes FE SDS4 / AC (XG3-5) ELN - MAN4 -... - VDC 3 4 6 5 ressure relief valve setting (bar) Available configurations AC: lateral inlet port AD: top inlet port, lateral port plugged ADA FS3: Only top inlet, SAE flange 5 4 3 Inlet section body * page YE: AC-AD -NOA() CODE: 5FIA43 DESCRIION: Standard body, lateral inlet port or upper inlet port, upper port open YE: AC-AD CODE: 5FIA43 DESCRIION: Standard body, lateral inlet port or upper inlet port, upper port plugged YE: ADA-FS3M CODE: 5FIA49 DESCRIION: Body ISO 66- type flange connection, upper port with blind flange arts * YE CODE DESCRIION For AD inlet section - XA754 G -/4 plug (omitted in description) MAN4 XGIU644 G /4-G /4 pressure gauge arrangement For AC inlet section - XA773 G -/ plug (omitted in description) 3 Main relief valve page Standard setting is referred to l/min -.6 USgpm flow YE CODE DESCRIION XG M63 Setting range 5- bar (75-3 psi) Standard setting 5 bar ( psi) XG3 M64 Setting range 5-35 bar (-5 psi) Standard setting 5 bar (36 psi) 4 Inlet relief valve options page 3 YE CODE DESCRIION SV XA5448 Relief valve blanking plug F X3953 Inlet anti-cavitation valve L X775 Hydraulic operated unloader valve Solenoid operated unloader valve ELN EFW77 Without emergency EL EFW77 ush-button emergency ELV EFW77 Screw type emergency EL EFW773 ush and twist type with detent emergency 5 Coils page 9 YE CODE DESCRIION VDC 4SLE Coil type BER, ISO44 integrated type VDC For complete available coils list see page 7 6 orts threading page 4 Specify only if different from standard BS thread (see page 4), for flange connection according to ISO 66- type, indicate: FS3M. NOE (*) Codes are referred to BS thread. DWWEB3E
inlet section SDS4 Dimensional data and hydraulic circuit AC-AD type AD FS3M type (ISO flange connection) 56,8 6.7 4.57 8,8.3 73.8.9 4.55 4. 3 9.3 34.95.37 69.9.75.4.84 3..9 M n 4 threads 9.35.5 9,5 3.6 79.5 3.3 9.7.7 35.7.4 7.85.7 58.7.3 4. 85 7.8.65.8 4. 85 7.8 M n 4 threads For left inlet directional For left inlet directional For right inlet directional For right inlet directional valve, side port valve, upper port valve, side port valve, upper port Description example: AC(SV) Description example: AD(SV) Description example: BC(SV) Description example: BD(SV) DWWEB3E
SDS4 inlet section Main relief valve ilot operated main relief valve Description example: X G 3-5 46.8 Spring type Valve setting (bar) allen wrench 5 (bar) 4 3 ressure XG valve setting range From 5 to bar (75-3 psi) 4 6 8 (US gpm) 5 max. setting standard setting 4 3 min. setting 3 4 wrench 9 Nm (4.7 lbft) wrench 36 Nm (74 lbft) ressure XG3 valve setting range From 5 to 35 bar (-5 psi) 4 6 8 (US gpm) (bar) 4 max. setting 5 3 standard setting 4 min. setting 3 3 4 Inlet relief valve options Anticavitation valve Description example: AC (XG3-5) F Anticavitation valve ressure drop 8.5.73 wrench 36 Nm (74 lbft) 4 6 8 (US gpm) (bar) 5 5 5 5 5 3 4 ressure DWWEB3E
inlet section SDS4 Inlet relief valve options Unloader valves Description example: AC (XG3-5) L Hydraulic operated valve: L Solenoid operated valve: EL X wrench 36 Nm (74 lbft) 37.7.48 X (bar) ressure 5 5 L valve pressure drop 4 3 4 Features Max. flow...: 4 l/min (5 US gpm) Internal leakage...: from to 8 cm 3 /min @ bar (from. to. in 3 /min @ 45 psi) 6 8 (US gpm) 5 5 5 EL valve pressure drop wrench 4 3 Nm (. lbft) 4. wrench 36 Nm (74 lbft) (bar) 4 6 8 (US gpm) 5 5 5 5 5 3 4 ressure ELN: without emergency EL: push button type ELV: screw type EL: push & twist type Features Max. flow...: 4 l/min (5 US gpm) Internal leakage...: from to 8 cm 3 /min @ bar (from. to. in 3 /min @ 45 psi) DWWEB3E 3
SDS4 working section arts ordering codes (mechanical control) ort A ort B EL SDS4 / K - S3-8 SL - X3 (G3 - \ G4 - ) -... 3 4 5 5 6 ressure relief valve setting (bar) 5 7 3 5 4 Working section kit * page 6 YE CODE DESCRIION 5EL43 arallel circuit; standard spool, arranged for port valves ( type omitted in description) K 5EL437 For series and series-parallel circuit; arranged for port valves, need spool type S for series circuit and spool type S for series-parallel circuit -FS3M 5EL49 As type with ISO 66- type flange connection K-FS3M 5EL493 As type K with ISO 66- type flange connection For floating circuit Needs dedicated positioners (3-4) and spools (5RSA-5RSB); for left and right inlet combinations see page 5Y 5EL43 Arranged for port valves 5W 5EL43 Arranged for port valves 5Y-FS3M 5EL49 As type 5Y with ISO 66- type flange connection 5W-FS3M 5EL49 As type 5W with ISO 66- type flange connection 4 DWWEB3E
working section SDS4 Spools () page 8 YE CODE DESCRIION 3CU8 Double acting, 3 positions, with A and B closed in neutral position Q= l/min (53 USgpm) 3CU8 As previous Q=3 l/min (79 USgpm) 3 3CU8 As previous Q=4 l/min (6 USgpm) standard 3CU85 Double acting, 3 positions, with A and B open to tank in neutral position Q= l/min (53 USgpm) 3CU85 As previous Q=3 l/min (79 USgpm) 3 3CU85 As previous Q=4 l/min (6 USgpm) H3 3CU84 Double acting, 3 positions, with A and B partially connected to tank in neutral position Q= l/min (53 USgpm) 33 3CU83 Single acting on A, 3 positions, B plugged Q=4 l/min (6 USgpm) S 3CU8 Series spool, double acting, 3 positions, with A and B closed in neutral position S 3CU85 Series spool, double acting, 3 positions, with A and B open to tank in neutral position S 3CU83 Series-parallel spool, double acting, 3 positions, with A and B closed in neutral position Q= l/min (53 USgpm) S 3CU83 As previous Q=3 l/min (79 USgpm) S3 3CU83 As previous Q=4 l/min ( 6 USgpm) For floating circuit Needs dedicated sections (5Y-5W) positioners (3-4); for left and right inlet combinations see page 5RSA 3CU844 Double acting spool with A and B closed in neutral position, 4 positions, floating 4 th position, with spool in, restricted on port A return flow Q= l/min (53 USgpm) 5RSA 3CU844 As previous Q=3 l/min (79 USgpm) 5RSA3 3CU844 As previous Q=4 l/min (6 USgpm) 5RSB 3CU8443 Double acting spool with A and B closed in neutral position, 4 positions, floating 4 th position, with spool out, restricted on port B return flow Q= l/min (53 USgpm) 5RSB 3CU8444 As previous Q=3 l/min (79 USgpm) 5RSB3 3CU8445 As previous Q=4 l/min (6 USgpm) 4 B side options page YE CODE DESCRIION LB-3 5LEV3B Open steel lever for positioner type 8--3C-4C LBF-3 5LEV3B Open steel lever for positioner type 3-4 SL 5CO4 Without lever, with dust-proof plate positioner type 8--3C-4C SLF 5CO4 Without lever, with dust-proof plate positioner type 3-4 5 ort valves page 5 Valves standard setting is referred to l/min -.64 USgpm flow YE CODE DESCRIION U XA54 Blanking plug for ports A and B C X333A Anticavitation valve UX(G-6) X3346 ilot anti-shock and anticavitation valve Setting range 5-35 bar (75-5 psi) Standard setting 6 bar (3 psi) ilot operated antishock valves X(G-5) X33B5 Setting range 5- bar (75-3 psi) Standard setting 5 bar ( psi) X(G3-5) X33B5 Setting range 5-35 bar (-5 psi) Standard setting 5 bar (36 psi) Antishock valves (YG3-75) X33975 Setting range - bar (45-9 psi) Standard setting 75 bar (5 psi) (YG4-5) X3395 Setting range 5-35 bar (-46 psi) Standard setting 5 bar (36 psi) 6 orts threading page 4 Specify only if different from standard BS thread (see page 4), for flange connection according to ISO 66- type, indicate: FS3M. 7 lug for single acting spool * CODE DESCRIION XA754 lug G /4 4FL8 Blind flange DN3 3 A side spool positioner page YE CODE DESCRIION 8 5V8B 3 positions with spring return in neutral position 5VB 3 positions, detent in all positions 3 5V3B 4 positions with spring return in neutral position, detent in 4 th position with spool-in; need spool 5RSA 3C 5V3B 4 positions with spring return in neutral position, detent in 4 th position with spool-out; need spool 5RSB 4 5V4B 4 positions, detent in all position. 4 th position with spool-in; need spool 5RSA 4C 5V4B 4 positions, detent in all position. 4 th position with spool-out; need spool 5RSB NOE (*) All codes are referred to BS thread. () Spools partially connect to tank type RSA and RSB on request. Dedicated spools for applications availables on request. DWWEB3E 5
SDS4 working section arts ordering codes (proportional hydraulic control) type omitted in description EL SDS4 / () - 3-8IM... 3 5 4 6 3 4 3 Working section kit * page 7 YE CODE DESCRIION (IM) 5EL43A arallel circuit; standard spool, arranged for port valves ( type omitted in description) K(IM) 5EL437A For series and series-parallel circuit; arranged for port valves, need spool type S for series circuit and spool type S for series-parallel circuit -FS3M(IM) 5EL49A As type with ISO 66- type flange connection K-FS3M(IM) 5EL493A As type K with ISO 66- type flange connection For floating circuit Needs dedicated positioners (3IM) and spools (5RSA-5RSB); for left and right inlet combinations see page 5Y(IM) 5EL43 Arranged for port valves 5Y-FS3M(IM) 5EL49 As type 5Y with ISO 66- type flange connection Spools page 8 3 Complete controls * page 3 YE CODE DESCRIION 8IM 5IDRB3 Double side proportional hydraulic control with spring return to neutral 3IM 5IDRB3 Double side proportional hydraulic control with spring return to neutral, for floating circuit with spool-in. Need spool 5RSA 4 ort valves page 5 See page 5 5 orts threading page 4 Specify only if different from standard BS thread (see page 4), for flange connection according to ISO 66- type, indicate: FS3M. 6 lug for single acting spool * CODE DESCRIION XA754 lug G /4 4FL8 Blind flange DN3 See page 5 NOE (*) Codes are referred to BS thread. 6 DWWEB3E
working section SDS4 Dimensional data and hydraulic circuit /K type A B 66.8.63 66.8 6.57 74.8 6.8 Valve fixing plan A 3 9.3 B type A B K type A B 37.46 74.9 4 4.88 54. /K-FS3M type (ISO flange connection) 9.35.5 58.7.3 9.35.5 58.7.3 M n 4 + 4 threads A B 3..9 4 4.88 54. 5..59 DWWEB3E 7
SDS4 working section Spools ype (//3) spool Double acting, 3 positions, with A and B closed in neutral position A B Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) ype spool metering Q in = 4 l/min / (5 US gpm) - (on ports) = bar / (45 psi) 5 4 3...3.4 (in) 4 6 8 Stroke =>A=>B=> 5 (US gpm) 75 5 5 (mm) ype (//3) spool Double acting, 3 positions, with A and B open to tank in neutral position A B ype H (H3) spool Double acting, 3 positions, with A and B partially connected to tank in neutral position A B Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) ype 3 (33) spool Single acting on A, 3 positions, B plugged ype 5RSA (//3) spool Double acting spool with A and B closed in neutral position, 4 positions, with spool in, floating 4 th position, restricted on port A return flow ype 5RSB (//3) spool Double acting spool with A and B closed in neutral position, 4 positions, with spool out, floating 4 th position, restricted on port B return flow A A B 3 3 A B Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) position 3: + mm (+,79 in) Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) position 3: - mm (+,79 in) 8 DWWEB3E
working section SDS4 Spools ype S spool Series spool, double acting, 3 positions, with A and B closed in neutral position A B Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) ype S spool metering Q in = 4 l/min / (5 US gpm) - (on ports) = bar / (45 psi)...3.4 (in) (US gpm) 5 5 (bar) 4 8 3 75 6 4 6 8 Stroke =>A=>B=>Lc 5 5 (mm) ressure ype S spool pressure drop (3 sections, series on section ) 5 5 75 (US gpm) 4 6 4 3 4 A => A3 => 4 8 ype S (S/S/S3) spool Series-parallel spool, double acting, 3 positions, with A and B closed in neutral position A B Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) ype S spool metering Q in = 4 l/min / (5 US gpm) - (on ports) = bar / (45 psi) 5 4 3...3.4 (in) =>A=>B=> 4 6 8 Stroke 5 5 (bar) (US gpm) 4 3 75 5 5 (mm) ressure ype S spool pressure drop (3 sections, series-parallel on section ) 5 5 75 (US gpm) 7 6 5 4 3 3 4 => B => A => ype S spool Series spool, double acting, 3 positions, with A and B open to tank in neutral position A Spool stroke position : - mm (-,47 in) position : + mm (+,47 in) B ype S spool metering Q in = 4 l/min / (5 US gpm) - (on ports) = bar / (45 psi) ype S spool pressure drop ( sections, series on section )...3.4 (in) 5 5 75 (US gpm) 5 (US gpm) 4 5 (bar) 4 8 3 75 6 8 5 4 6 =>A=>B=>Lc 4 5 4 6 8 3 4 Stroke (mm) ressure A => A => DWWEB3E 9
SDS4 working section A side spool positioners 8 type: with spring return It s supplied with standard spring type C (see force-stroke diagram). Available with spring type B (8MB code: 5V8B4) and type D (8MD code: 5V8B). Force-stroke diagram 7.75 6 (N) 5 4 -.4 D C -.3 -. -....3.4 (in) (lbf) D C 9 Force 3 B B 6 3 - - -8-6 -4-4 6 8 Stroke (mm) Spring type B: stroke = 65 N (37.9 lbf), stroke = 374 N (84.7 lbf) Spring type C: stroke = 9 N (4.7 lbf), stroke = 455 N (.8 lbf) Spring type D: stroke = 8 N (6.94 lbf), stroke = 544 N (.9 lbf) type: with detent Detent in all positions. 69.7 DWWEB3E
working section SDS4 A side spool positioners For floating circuit 3 type 4 positions, spring return in neutral position, detent in 4 th position with spool in. Needs spool type 5RSA. 3C type 4 positions, spring return in neutral position, detent in 4 th position with spool out. Needs spool type 5RSB. 34.9 5.3 59.3 6.7 Working section 5Y cod. 5EL43 (left inlet) 5W cod. 5EL43 (right inlet) Working section 5W cod. 5EL43 (left inlet) 5Y cod. 5EL43 (right inlet) 4 type Detent in 4 positions, 4 th position with spool-in. Needs spool type 5RSA. 4C type Detent in 4 positions, 4 th position with spool-out. Needs spool type 5RSB. 34.9 5.3 59.3 6.7 Working section 5Y cod. 5EL43 (left inlet) 5W cod. 5EL43 (right inlet) Working section 5W cod. 5EL43 (left inlet) 5Y cod. 5EL43 (right inlet) DWWEB3E
SDS4 working section B side options LB and LBF types: steel lever control ype LB for positioner type 8--3C-4C. ype LBF with seals for positioner type 3 and 4. Dimensions are the same. Configuration LB3 (standard) with pivot placed up and lever up 6 6 M6 6 Configuration LB with pivot placed down and lever up 6 66,8.63 4.57 63.48 7.76 4.57 85 3.35 35.38 3.5 7.67 35.38 7.76 Valve fixing plan Configuration LBF3 (standard) with pivot placed up and lever up 7.79 4 4.88 6 5.98 6 5 3 3 5 4 4.88 Configuration LBF with pivot placed down and lever up M6 6 6 66,8.63 4.57 63.48 7.76 4.57 85 3.35 35.38 3.5 7.67 35.38 7.76 Valve fixing plan 7 5.79.98 4 4.88 SL and SLF types: dust-proof plate ype SL for positioner type 8--3C-4C. ype SLF with seals for positioner type 3 and 4. Dimensions are the same. 4 4.88 Ø Ø.47 3. 8.3 7,3.8 83,3 3.8.47 Ø 3 Ø.8 DWWEB3E
working section SDS4 Complete controls roportional hydraulic control 8IM type Double side proportional hydraulic control with spring return to neutral. A B 66.8.63 Valve fixing plan 476 8.74 G 3/8 VA A B VB 93 3.66 4.8 (bar) ressure 5 5 - ressure - stroke diagram Referred to spool type ort B ort A -.4 - -.3-8 -6 -. -4 -....3.4 spool dead band (in) 5 5-4 6 8 Stroke (mm) 5 (bar) ilot pressure.5..5..5.3 (in) 4 3 ressure control curve on port VA and VB: type 33 7.5 mm (.9 in) 9 bar (75 psi) 5 4 3 5.8 bar (84 psi).85 mm (.33 in) 4 6 8 usher stroke (mm) 7.6 mm (.3 in) Features ilot pressure...: min. bar (3 psi) max. bar (45 psi) DWWEB3E 3
SDS4 working section Complete controls roportional hydraulic control 3IM type Double side proportional hydraulic control with spring return to neutral, for floating circuit. A B 66.8.63 Valve fixing plan 476 8.74 G 3/8 A B 93 3.66 4.8 ressure 4 (bar) 3 Float 3 -.7 -.7 -.6-8. - -6 -.5 Floating area - Metering zone Spool dead band ressure-stroke diagram -.4 -.3 ort B -. -. -.4 Features ilot pressure...: min. bar (3 psi) max. bar (45 psi) ort A -3.4 3.4-8 -4 4 8 (mm) Stroke...3.4.4 (in) 5 4 3 (bar) ilot pressure (bar) ilot pressure 4 3 4 3 ressure control curve on position : type.5..5..5.3 (in) 3.5 bar (47 psi).85 mm 4 6 8 (.33 in) usher stroke (mm) ressure control curve on position and float: E96 type.5..5..5.3 (in) 3.5 bar (5 psi) 5 bar (8 psi) 7.5 mm (.9 in) 4.8 bar (5 psi) 7.5 mm (.9 in) 6.5 bar (39 psi) 6.5 mm (.6 in) 5 4 3 5 4 3.85 mm 4 6 8 (.33 in) usher stroke (mm) 7.6 mm (.3 in) 7.6 mm (.3 in) 4 DWWEB3E
working section SDS4 ort valves ilot operated antishock valves X (G3) Setting range Mounted on port A Mounted on port B 3 Mounted on port A and B 5. allen wrench 5 wrench 9 Nm (4.7 lbft) wrench 36 Nm (74 lbft) 4 (bar) ressure 3 G setting range From 5 to bar (from 75 to 3 psi) 4 max. setting standard setting min. setting 3 4 6 8 (US gpm) 4 5 (bar) 4 3 3 ressure G3 setting range From 5 to 35 bar (from 5 to 5 psi) 4 max. setting standard setting min. setting (US gpm) 3 4 6 8 5 4 3 Antishock valves (YG4) Setting range Mounted on port A Mounted on port B 3 Mounted on port A and B max. 77. max. 3.4 allen wrench 5 wrench 7 4 Nm (7.7 lbft) wrench 36 Nm (74 lbft) YG4 setting range From 5 to 35 bar (from to 46 psi) 3 4 5 (US gpm) 3 4 5 (US gpm) 4 4 (bar) (bar) 5 max. setting 5 3 3 4 4 max. setting standard setting 3 3 standard setting min. setting min. setting ressure YG3 setting range From to bar (from 45 to 9 psi) 5 5 ressure 5 5 Antishock and anticavitation valves UX Mounted on port A Mounted on port B 3 Mounted on port A and B 38.5 allen wrench 5 wrench 9 Nm (4.7 lbft) wrench 36 Nm (74 lbft) 4 (bar) ressure 3 Setting range From 5 to 35 bar (from 75 to 5 psi) 4 max. setting standard setting min. setting 3 4 6 8 (US gpm) 8 (bar) 5 4 3 ressure 6 4 ressure drop 4 (US gpm) 3 4 6 8 8 6 4 DWWEB3E 5
SDS4 working section Anticavitation valves C Mounted on port A Mounted on port B 3 Mounted on port A and B 8.5.73 wrench 36 Nm (74 lbft) ressure drop (bar) 8 6 4 6 8 ressure 4 (US gpm) 8 6 4 3 4 Valve blanking plugs 3 Mounted on port A Mounted on port B 3 Mounted on port A and B 4.6 allen wrench 7 8 Nm (59 lbft) 6 DWWEB3E
intermediate section SDS4 CS mid return manifold Mid return manifold for directional valve with left and right inlet both; it allows independent circuits with common outlet. DN 64 flange connection according to ISO 66- type. M n 4 threads 66.8 6.57 9..75 5.8. 5.4. A A 4. 44.45.75 88.9 3.5 3 9.3 B B 53.9 6 4.7 Hydraulic circuit A B A B Description example: SDS4//AD(SV)/8SL/CS/8SL/BC(SV) DWWEB3E 7
SDS4 outlet section arts ordering codes FS SDS4 / RK -... 4 Available configurations RC: Side outlet RD: Upper outlet RDA-FS3M: Upper outlet with ISO flange connection RE: Upper outlet and carry-over RE-FS3M: As type RE with ISO flange connection RK: Closed centre circuit: upper outlet, pressure line plugged 3 Outlet section body * CODE DESCRIION 3FIA43 Outlet section body with threaded ports 3FIA49 Outlet section body with ISO66- type flange 3FIA49 Outlet section body with ISO66- type flange connection, without side port lug CODICE DESCRIZIONE CODICE DESCRIZIONE XA773 appo G -/ 4FL8 Flangia cieca DN 3 3 Circuit options CODE QY DESCRIION 3A645 M39x tapered plug for carry-over (RE) and closed centre (RK) options C 4 orts threading page 4 Specify only if different from standard BS thread (see page 4), for flange connection according to ISO 66- type, indicate: FS3M. NOE (*) Codes are referred to BS thread. Dimensional data and hydraulic circuit RC type RC RD 8.5.73 66.8.63 48.3 5.8 Section C-C Section C-C 3 9.3 C 9.7.7 4 8.3 RE-FS3-M type (ISO flange connection) Note: he outlet section body RDE is without side port. M n 4 threads 3..9 RE RK 58.7.3 9.35.5 5..59 7.85.7 5.7.3 C Section C-C tapered plug 3A645 Section C-C tapered plug 3A645 35.7.4 C 67.5.64 34.95.37 69.9.75 M n 4 threads.85.47 8 DWWEB3E
Installation and maintenance SDS4 Installation and maintenance he SDS4 valve is assembled and tested as per the technical specification of this catalogue. Before the final installation on your equipment, follow the below recommendations: - the valve can be assembled in any position; in order to prevent working section deformation and spool sticking mount the product on a flat surface; - In order to prevent the possibility of water entering the lever box and spool control kit, do not use high pressure wash down directly on the valve; - prior to painting, ensure plastic port plugs are tightly in place. A A B A3 B3 B Fitting tightening torque - Nm / lbft HREAD YE port ports A, B port Hydraulic pilot BS G / G /4 G / G 3/8 With O-Ring seal 4 (77) 9 (4) 4 (77) 35 (5.8) With copper washer 4 (77) 9 (4) 4 (77) 35 (5.8) With steel and rubber washer 4 (77) 9 (4) 4 (77) 35 (5.8) UN-UNF 7/8- (SAE 4) 5/8- (SAE ) 7/8- (SAE 4) 3/4-6 (SAE 8) With O-Ring seal 4 (77) (47) 4 (77) 49 (36.) SAE J58 CODE 6 ISO 66- type (bolts threading) / [/-3 UNC] DN 38 [M] /4 [7/6-4 UNC] DN 3 [M] / [/-3 UNC] DN 38 [M] 6-79 (47.5-58.3) 48-6 (35.4-45.7) 6-79 (45.7-58.3) NOE hese torque are recommended. Assembly tightening torque depends on many factors, including lubrication, coating and surface finish. he manufacturer shall be consulted. DWWEB3E 9
SDS4 accessories Coils ypes and ordering codes Coil type Connectors Voltage ISO44 Deutsch D AM J VDC 4SLE 4SLE 4SLE ( ) 4SLE3 4VDC 4SLE4 4SLE34( ) 4SLE4 4SLE4 ( ) 4SLE43 BER 48VDC 4SLE348( ) - - VDC 4SLE3( ) - - VDC 4SLE3( ) - - VDC 4SL3 ( ) - - Mating connectors 4CN9995 5CON43 5CON3 Notes: () to use only with rectifier connector - () perpendicular type Voltage ISO 44 mating connector with rectifier BER type coil VDC - 4VDC 48VDC VDC VDC 4CN34 4CN348 4CN3 4CN3 Dimensions and features BER type 59.5.34 ISO44 connector 38.5.5 44.5.75 36.4 3.5.93 68.68 DEUSCH connector (perpendicular type) 38.5.5 44.5.75 36.4 3.5.93 Features Nominal voltage tolerance...: ±% ower rating...: 9.3 W - VDC : 9. W - 4VDC : 9. W - 48VDC : 9. W - VDC : 9.3 W - VDC Nominal current...:.6 A - VDC :.8 A - 4VDC :.4 A - 48VDC :.7 A - VDC :.9 A - VDC 47.5.87 DEUSCH connector (parallel type) 68.3.69 3.5.93 6.5.38 AM J connector 47.5.87 3.5.93 Coil insulance : Class H 8 C (356 F) Weather protection....: I65 - ISO44 : I69K - Deutsch D : I65 - AM J Insertion...: % 38.5.5 36.4 38.5.5 36.4 3 DWWEB3E
SDS4 Notes DWWEB3E 3
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