Fitted with a main pressure relief valve and a load check valve on every working section.

Transcription

1 SDS18 1 to 12 sectional directional control valve Fitted with a main ressure relief valve and a load check valve on every working section. Available with arallel and series-arallel (tandem) circuit. Otional carry-over ort. A wide variety of ort valves. Available manual, neumatic, hydraulic, electro-hydraulic, and remote with flexible cables sool control kits. NEW PRODUCT DBV3E 1 st edition, Setember 26

2 NEW PRODUCT SDS18 working condition This catalogue shows technical secifications and diagrams measured with mineral oil of 46mm 2 /s - 46 cst viscosity at 4 C - 14 F temerature. Nominal flow rating 16 l/min 42 US gm Oerating ressure (max.) 31 bar 46 si Back ressure (max.) outlet ort T 2 bar 36 si Internal leakage (max.) A(B) T Fluid = bar - 14 si fluid and valve at 4 C - 14 F 3 cm 3 /min.18 in 3 /min Mineral based oil Fluid temerature with NBR (BUNA-N) seals from -2 C to 8 C from -4 F to 176 F with FPM (VITON) seals from -2 C to C from -4 F to 212 F oerating range from 1 to 7 mm 2 /s from 1 to 7 cst Viscosity min. 12 mm 2 /s 12 cst max. 4 mm 2 /s 4 cst Max contamination leve -/19/16 - ISO 446 NAS class 1 Ambient temerature for working conditions with mechanical devices from -4 C to 6 C from -4 F to 14 F with neumatic and hydraulic devices from -3 C to 6 C from -22 F to 14 F with electric devices from -2 C to C from -4 F to 122 F NOTE - for different conditions lease contact Sales Dt. STANDARD threads Reference standard BSP UN-UNF NPTF THREAD ACCORDING TO ISO 228/1 ISO 263 BS 2779 ANSI B1.1 unified ANSI B1.2.3 CAVITY DIMENSION ACCORDING TO ISO 1179 SAE DIN shae X or Y J476a Ports BSP UN-UNF Inlet P G 3/4 1 /16-12 (SAE16) Ports A and B G 3/4 1 1/16-12 (SAE12) Outlet T and carry-over C G 1 1 /16-12 (SAE16) Hydraulic ilots G 1/4 9/16-18 (SAE6) Pneumatic ilots NPTF 1/8-27 NOTE - for different ort size contact Sales Dt. 2

3 General Performance data P T ressure dro P A(B) ressure dro A(B) T ressure dro (bar) sections 6 sezioni 1 sezione (US gm) (US gm) (si) 2 (si) 2 (bar) P A12(B12) (bar) P A6(B6) P A1(B1) 2 1 P A1(B1) P A6(B6) P A12(B12) 2 Pressione (US gm) (si) Main ressure relief valve YG2 valve setting range YG3 valve setting range YG4 valve setting range (green band) (blue band) (red band) (US gm) (si) 4 (bar) (bar) max. setting 2 min. setting Presure 3 2 max. setting min. setting (US gm) (si) (bar) max. setting min. setting (US gm) (si) Auxiliary valves Tye UX variable setting valves Setting examle (1 l/min US gm) Tye UX valves ressure dro (in anticavitation) (US gm) (US gm) 4 (si) 4 (si) (bar) G (bar) 3 F E 2 D C B 2 2 A A = 63 bar - 9 si B = bar - 14 si C = 12 bar - 18 si D = 16 bar - 23 si E = 2 bar - 29 si F = 2 bar - 36 si G = 3 bar - 43 si DBV3E 3

4 NEW PRODUCT SDS18 Dimensional data E 12 F M1 assembling holes A1 A2 1 T T B1 B NOTE: Drawings and dimensions are referred to BSP thread configuration. TYPE E mm in mm in F TYPE E mm in mm in F SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/ SDS18/

5 hydraulic circuit Oen centre configuration 1 a1 b1 a2 b2 t t 17 2 Carry-Over configuration 1 a1 b1 a2 b2 t C 17 2 Closed centre configuration 1 a1 b1 a2 b2 t DBV3E

6 NEW PRODUCT SDS18 DESCRIPTION COMPOSITION Nr. of sections Main relief valve setting (bar) 1 Mounted on ort A 2 Mounted on ort B 3 Mounted on orts A and B Port valves setting (bar) Electric devices voltage suly SDS18 / 2 / AC (yg3-12) EL / H l. UT3 / PH - 1 8IM. UX3(G12-G) / RD - SAE - 12VDC Inlet section AC: Inlet section with side ort AD: Inlet section with uer ort 3 Inlet valve otions F: Inlet anticavitation valve L: Hydraulic ilot unloader valve EL: Solenoid oerated unloader valve SV: Valve blanking lug (omit in descrition) 2 relief valve SV: Valve blanking lug Direct tye Y (YG2-8): Setting range from 63 to 12 bar / 9 to 18 si, standard setting 8 bar / 116 si (YG3-17): Setting range from to 2 bar / 14 to 29 si, standard setting 17 bar / 2 si (YG4-22): Setting range from 16 to 1 bar / 23 to 46 si, standard setting 22 bar / 32 si Pilote oerated tye X (XG-12): Setting range from 2 to 31 bar / 36 to 46 si, standard setting.12 bar / 17 si 6

7 DESCRIPTION COMPOSITION 4 Sools 1: Double acting, 3 ositions,with A and B closed in neutral osition 1CS: Double acting, 3 ositions, with A and B closed in neutral osition, metering tye 1A: Double acting, 3 ositions,with A oen to tank in neutral osition 1B: Double acting, 3 ositions,with A oen to tank in neutral osition 2: Double acting, 3 ositions, with A and B oen to tank in neutral osition 3: Single acting on A, 3 ositions, B lugged 4: Single acting on B, 3 ositions, A lugged : Double acting, 4 ositions, floating in 4 th osition with sool in: for A side ositioners tye 13.Need secial body, contact Sales Deartment 8PF: Double acting, 3 ositions, regenerative in 3 rd osition with sool in, for A side ositioner tye 8CR. Working section PH: Parallel circuit with ort valves arrangement SPH: Series-arallel circuit with ort valves arrangement 6 A side sool ositioners 7FC : With friction and neutral osition sensor 8: With sring return in neutral osition 8D: With sring return in neutral osition and in with M6 female thread for dual control 8D1: With sring return in neutral osition and in with 8 mm /.32 in radial hole 8D2 : With sring return in neutral osition and in with M8 male thread for dual control 8TL: As tye 8, for flexible cable control 8F2 : Ad tye 8, with adjustable stroke limiter 8CR: As tye 8 with reduced stroke: only for sool tye 8PF 19 : 2 ositions, with sring return in neutral osition from osition 1 2 : 2 ositions, with sring return in neutral osition from osition 2 11 : Detent in ositions neutral, 1 and 2 12 : Detent in ositions 1 and 2 1 : 2 ositions, detent in ositions 1 and neutral 16 : 2 ositions, detent in ositions 2 and neutral 21: 2 ositions, detent in ositions 2 and sring return to neutral 9B: With detent in osition 1 and sring return in neutral osition 1B: With detent in osition 2 and sring return in neutral osition 11B: Detent in ositions 1 and 2 and sring return in neutral osition 8MG3: As tye 8 and microswitch in ositions 1 and 2 8K: As tye 8 and solenoid lock device 8P: ON/OFF neumatic kit 8PG: Proortional neumatic kit 8EPG3: ON/OFF electroneumatic kit 8ID3: Proortional hydraulic kit 8EI3 : Electrohydraulic kit 13: 4 ositions with sring return in neutral osition and detent in 4 th osition: only for sool tye 7 B side otions L: Standard lever box LF1: Lever box with adjustable flow limiter LS: Waterroof lever box LB: Steel lever LEB: Safety lever box SLP: Without lever box, with dust-roof late TQ: CD flexible cable connection LCB: Joystick lever for 2 sections oeration 8 Comlete controls They need secial sools and articular bodies: contact Sales Dt. 8IM: Double side roortional hydraulic control with sring return to neutral 13IM: Double side roortional hydraulic control with sring return to neutral; for floating circuit sool 9 Auxiliary valves SV: Valve blanking lug C: Anticavitation valve Antishock valve P(G2-63): Setting range from 63 to 12 bar / 9 to 18 si, standard setting 63 bar / 9 si P(G3-): Setting range from to 2 bar / 14 to 36 si, standard setting bar / 14 si P(G4-2): Swetting range from 2 to 31 bar / 29 to 46 si, standard setting 2 bar / 29 si Antishock and anticavitation valve U(G2-63): Setting range from 63 to 12 bar / 9 to 18 si, standard setting 63 bar / 9 si U(G3-): Setting range from to 2 bar / 14 to 36 si, standard setting bar / 14 si U(G4-2): Setting range from 2 to 31 bar / 29 to 46 si, standard setting 2 bar / 29 si Antishock ilot oerated valve PX(G-17): Setting range from 63 to 3 bar / 9 to 43 si, standard setting 17 bar / 2 si Antishock and anticavitation ilot oerated valve UX(G-17): Setting range from 63 to 3 bar / 9 to 43 si, standard setting 17 bar / 2 si 1 Outlet section RC: With side outlet RD: With uer outlet RE: With side carry-over sleeve RK: With closed centre RV: With backressure valve and carry-over 11 Threading secification Secify thread tye only if is different from BSP standard: see age 2 DBV3E 7

8 NEW PRODUCT SDS18 other otions Intermediate sections Following intermediate sections are available: for assembling on SDS18 directional valve contact Sales Deartment. - CS1: Mid return manifolds for directional valve with left and right inlet both; they allow 2 indiendent circuits with common outlet. - DFG: The flow on the downstream sections can be adjusted from to 16 l/min / to 42 US gm by means of graduated handwheel; flow exceeding setting goes to tank. - EI1: The oeration of ustream section exclude the EI downstream section; the ressure of the downstream sections should be adjusted at least 2 bar / 29 si below the relief valve setting. The relief cavity is the same of the one in the inlet cover; it allows to use direct oerated (tye Y) as well as ilot oerated (tye X) relief valves. WALVOIL S.P.A - 42 REGGIO EMILIA - ITALY - VIA ADIGE, 13/D - TEL FAX INFO@WALVOIL.COM -