Directional spool valve type WH16 hydraulically operated

Transcription

1 Directional valve type WH16 hydraulically operated NS16 up to 5 MPa up to 240 dm /min WK PPLICION Directional valves type WH16 are intended for change in direction of fluid flow in a hydraulic system and thus it allows to change direction of movement of a receiver - mostly piston rod of a cylinder or hydraulic motor as well to use functions: on and off. hese directional valves are used for subplate mounting in any position in a hydraulic system. DESCRIPION OF OPERION H-4WH16E 72 H-4WH16HE 72 4 P B X Y L P B X Y Main bore and annular ports P,,, B are made in the housing (1) and connected to its subplate connection. Directional valve is switched by shifting the (2) into one end position. Various control functions are dependent on the (2) which affects the configuration of connections among ports P,,, B in the housing (1). he (2) is shifted from its neutral position by affecting pressure of hydraulic fluid supplied to one chamber of caps (). he chambers are connected to control ports by means of cap (4) adequately one chamber with port X and the other chamber with port Y. he (2) is centered in neutral position by means of springs (5) versions WH16 / or hydraulically by means of fluid pressure affecting both surfaces (2) versions WH16H / - the centering for -position s is secured by the sleeve (6). Sealing of the directional valve to a subplate is secured by sealing rings. ype WH16-1 -

2 DESCRIPION OF OPERION...WH16E 72/...S......WH16E 72/ WH16E 72/...ICZ2m Directional valves may be provided with the pilot choke adjustment (8), stroke limiter of the (9), end position monitor of the (10). ccessories may be mounted depending version of directional valve like given on pages, 4, 8, 9. ECHNICL D Hydraulic fluid f Hydraulic fluid mineral oil Required filtr f ltrat ation up to t 16 µm Recommended filtration up to 10 µm Nominal fluid viscosity 2 o 7 mm /s at temperature 55 C Viscosity range 2 2,8 up to 80 mm /s recommended o 40 C up to 55 C Fluid temperature range (in a tank) max -20 oc up to +70 C mbient temperature range o o - 20 C up to +70 C Max operat ating pressure ports s P,, B: version H-4 WH /.. /... 5 MPa vers ersion 4 WH / MPa por ort 25 MPa Max x controc trol l pressure Min contro c trol l pressure -position directional valve 2-position directional valve spring centered 2-position directional valve hydraulically centered Ind nduct uctive l posit p ition sensor ype of sensor (upon order another type available) Supp upply volt ltage Max load curre c urrent Fluid cap c apac acity 25 MPa 0,8 MPa 1,0 MPa 0,5 MPa ICZD2CNPNP02m 6-0V DC m -position directional valve spring centered 5,75 cm -position directional valve hydraulically centered from 0 (neutral) to operated position a 2,85 cm from 0 (neutral) to operated position b 5,75 cm from operated position a to 0 (neutral) position 2,9 cm from operated position b to 0 (neutral) position 2, cm 2-position directional valve 11,5 cm ype WH16

3 CCESSORIES FOR SNDRD DIRECIONL VLVE Pilot choke adjustment versions:...4wh S WH /S WH /S WH /S2... Directional valves type WH16 may be optionally provided with pilot choke adjustment (throttle check valve type Z2FS6 according to data sheet WK ) which allows to adjust switching time of directional valve. he change of adjustment method of switching time (flow throttling): on inlet - version...wh /s... on outlet - version...wh /s2... is made while mounting by rotating the pilot choke adjustment (1) by 180 degrees around its longitudinal axis. 1 2 Rotation of the adjusting screw () to the right increases and to the left decreases switching time of the valve. he pilot choke adjustment is fixed by means of bolts () M5 x pcs/kit in accordance with PN - EN ISO 4762 with tightening torque of Md = 5 Nm. 1 - Pilot choke adjustment with adjustment of switching time on inlet 2 - ssembly method of pilot choke adjustment with adjustment of switching time on outlet - djusting screw OPIONL CCESSORIES FOR DIRECIONL VLVE Stroke limiter Stroke limiter of the may be mounted: stroke limiter on valve ends and B version...4wh / stroke limiter on valve end version...4wh / stroke limiter on valve end B version...4wh / djustment of the stroke of the is by rotating the pin () and securing with locknut (4). Rotating the pin () to the right reduces the stroke of the. While adjusting the stroke the control chamber must be at zero pressure....4wh / S ype WH Stroke limiter body (valve end B) 2 - Spool of main directional valve - Pin 4 - Locknut 1 4 S6 D

4 OPIONL CCESSORIES FOR DIRECIONL VLVE End position monitoring...4wh /...icz2m End position monitoring ing may be mounted: on valve end on valve end B } version...4wh /... ICZ 2 Directional valves type WH16 H16 - only for -position directional valves may be equipped with inductive position sensors type ICZD2CNPNP02m. Depending on the version, it may be mounted on valve ends or B. Other sensor types may be mounted upon order and if agreed with the manufacturer , 2 - Inductive proximity sensor norm ormally ly open with the cable of 2 m length type ICZD2CNPNP P02m - Pin of the 4 - Cover of the directional valve (on valve end B) Scheme for f electre lectric ical l connectc nection of f ind i nduct uctive proxim imity ity sensor type ICZD2CNPNP P02m 6-0 VDC + _ brown I max = 200m RL black blue 6-0 VDC + _ I max = 200m RL brown black blue 1 2 sensor signal position a 0 b position "a" position "0" position "b" sensor - item sensor - item ype WH16

5 SCHEMES Graphic symbols of o - position directional valves Graphic symbols of 2- position directional valves...wh16...7x/......wh16h...7x/... a, X B a 0 b P b, Y B a, Y a 0 b P b, X...WH16...7X/......WH16H...7X/... a, X a, X B a b P B a b P b, Y b, Y Grap aphic symb ymbols for s working and indirect positions a B 0 P b working positions a B 0 P b E working and indirect positions a B 0 P b working positions a B b P C F D G K H Z J L M Q R S U V W ype WH16-5 -

6 OVERLL ND CONNECION DIMENSIONS Standard -position versions...4wh16...7x/... O16,5-4 depth holes O11-4 holes O11-2 depth holes O6,6-2 holes S O -2 pins 4, X P 91 71,5 1,6 69,9 M6 depth 17-2 holes M10 depth 17 4 holes 91 (min) 71,5 69,9 1,6 55,6 5 18, 17,5 L* P 4, ,9 76,6 88,1 101,6 144 (min) L 50 P B 101,6 X Y O17,5 (max) - 4 holes (P,,B,) O4 depth 8-2 holes O6, (max) - holes (X,Y,L*) X 12,7 14, 54 6 r 0,01/100 mm 0, Pilot choke adjustment (optional accessories) 2 - Sealing ring o-ring 22, 2, x 2,4-4 pcs/kit (P,,,B) - Sealing ring o-ring 10 0 x 2 - pcs/kit (X,Y,L) 4 - Overall dimension of -positio ion n directional valve ve spring c entered ( schemes: E, F, G, H, J, L, M, P, Q, R,, U, V, W - according to page 5) 5 - Overall dimension of -positio ion n directional hydraulicall ically y centered schemes: E, F, G, H, J, L, M, P, Q, R,, U, V, W - according to page 5) 6 - Porting pattern - configuration of surface holes in subplate in accordance with the following standards: CEO OP RP 121H - identified by CEO OP (nominal size CEO OP 07) ISO identified by ISO mounting bolts in accordance with PN -EN ISO 4762 M10 0 x pcs/kit tightening torque Md = 62 Nm M6 6 x pcs/kit tightening torque Md =12, 2,5 Nm NOE: (*) - only for -position versions with 0 (neutral ) position of the hydraulically centered 7 - Subplate surface required ype WH16

7 OVERLL ND CONNECION DIMENSIONS Standard 2-position versions...4wh16...7x/... O16,5-4 depth holes O11-4 holes O11-2 depth holes O6,6-2 holes S O -2 pins ,1 X P 91 71,5 91 (min) 1,6 69,9 M6 depth 17-2 holes M10 depth 17 4 holes 71,5 69,9 1,6 55,6 5 18, 17,5 L L* P 4, ,9 76,6 88,1 101,6 144 (min) 50 P B 101,6 X Y O17,5 (max) - 4 holes (P,,B,) O4 depth 8-2 holes O6, (max) - holes (X,Y,L*) X 12,7 14, 54 6 r 0,01/100 mm 0, Pilot choke adjustment (optional accessories) 2 - Sealing ring o-ring 22, 2, x 2,4-4 pcs/kit (P,,,B) - Sealing ring o-ring 10 0 x 2 - pcs/kit (X,Y,L) 4 - Overall dimension of 2-positio ion n directional valve ve spring c entered ( schemes: C, D, K, Z, according to page 5) 5 - Overall dimension of 2-posit -positio ion n directional hydraulicall ically y centered schemes: C, D, K, Z, according to page 5) 6 - Porting pattern - configuration of surface holes in subplate in accordance with the following standards: CEO OP RP 121H - identified by CEO OP (nominal size CEO OP 07) ISO identified by ISO mounting bolts in accordance with PN -EN ISO 4762 M10 0 x pcs/kit tightening torque Md = 62 Nm M6 6 x pcs/kit tightening torque Md =12, 2,5 Nm NOE: (*) - only for -position versions with 0 (neutral ) position of the hydraulically centered 7 - Subplate surface required ype WH16-7 -

8 OVERLL DIMENSIONS OF DIRECIONL VLVE WIH OPIONL CCESSORIES Directional valves with stroke limiter -p -posit ition direct d irectional valves ves wit ith the t spring centered Stroke limiter may be mounted: on valve end - version...4wh / on valve end B - version...4wh / on valve ends and B - version...4wh / p -position direc irectiona nal val alves with the hydrau draulic ical ally ly positione ned Stroke limiter may be mounted: on valve end - version...4wh16h...72/ on valve end B - version...4wh16h...72/ on valve end i B - version...4wh16h...72/ WH / WH16H...72/ p -position direc irectiona nal val alves with the hydrau draulic ical ally ly cen entered ered Stroke limiter may be mounted: on valve end B - version...4wh16h...72/ p -position direc irectiona nal val alves with the sprin pring positione ned Stroke limiter may be mounted: on valve end - version...4wh / wh16h...72/ wh / ype WH16

9 OVERLL DIMENSIONS OF DIRECIONL VLVE WIH OPIONL CCESSORIES Directional valves with end position monitoring -p -position direc irectiona nal val alves with the sprin pring centered ered End position monitoring may be mounted: on valve end on valve end B } version...4wh /... ICZ Directional valves with stroke limiter and end position monitoring -p -position vers ersions with the sprin pring cen entered ered Stroke limiter and end position monitoring may be mounted: stroke limiter on valve end and end position monitoring on valve end B - version...4wh /...11 ICZ2m stroke limiter on valve end B and end position monitoring on valve end - version...4wh /...12 ICZ2m X P X P WH /...ICZ2m...4WH /...11 ICZ2m -p -position direc irectiona nal val alves with the hydrau draulic ical ally ly cen entered ered End position monitoring may be mounted: on valve end B - version...4wh16h...72/...icz2m X P X P WH16H...72/... ICZ2m...4WH /...12 ICZ2m ype WH16-9 -

10 PERFORMNCE CURVES 2 o measured at viscosity ν = 41 mm /s and temperature t = 50 C Flow resist stance cur c urves Flow curves p (Q) for directional valves type...wh16... with s E and R P (MPa) 0,8 0,7 0,6 0,5 0,4 0, 0,2 0,1 1 - s: E, R 2 - R- flow direction P and B 1 2 B B P P B P P (MPa) Flow curves p (Q) for directional valves type WH16... with s: F,H,J,L,M,Q,S,U,V,W,C,D,K,Z 1 - S 2 - s: F, H, J, L, M, Q, U, V, W, C, D, K, Z P 0,8 B 0,7 0,6 0,5 0,4 0, 0,2 0, Q (dm / min) Q (dm / min) Flow curves p (Q) for directional valves type...wh16... with s G and P (MPa) 0,8 0,7 P B 0,6 0,5 P 0,4 P B 0, 0,2 0, Q (dm / min) Flow lim imit its Charakteristic curves p - Q for directional valves type...wh16... for 2-positions and -position directional valves spring centered with various s E, J, L, M, Q, R, U, V, W, C, D, K, Z F type G, H, S, pressure p [ MPa] flow Q [dm /min] NOES: bove flow limits are related to standard application of 4-way directional valve i.e. using two flow directions: P to and at the same time B to. In case 4-way directional valve with only one flow direction P to (B plugged) or to (B plugged) is applied then actual flow limit rates are significantly lower ype WH16

11 HOW O ORDER Version normal pressure up to 28 MPa = no designation high pressure up to 5 MPa = H H 4 WH 16 * Number of service ports 4-way = 4 Nominal size (NS) NS16 = 16 Centering/ positioning spring centering hydraulic off-set Spool type schemes = no designation = H - according to page5 Series number (70-79) - installation and connection dimensions unchanged = 7X series 72 =72 Switching time adjustment without switching time adjustment switching time adjustment as meter-in control switching time adjustment as meter-out control = no designation = S = S2 ccessories without accessories = no designation stroke limiter on valve ends and B = 10 stroke limiter on valve end = 11 stroke limiter on valve end B = 12 End position monitoring (applicable only to-position valves, end position monitoring mounted on valve end or B according to page 9 - to be agreed with the manufacturer) inductive position sensor with the cable of 2 m length another type of sensor (to be agreed with the manufacturer) Sealing NBR (for fluids on mineral oil base) FPM (for fluids on phosphate ester base) = ICZ 2m = to be specified = no designation = V Further requirements in clear text (to be agreed with the manufacturer) NOES: he directional valve should be ordered according to the above coding. he symbols in bold b are preferred vers ions in short delivery time. t Coding example: H-4WH16 E 72/ S2 - ICZ2m ype WH

12 EXMPLE OF PPLICION IN HYDRULIC SYSEM P B H-4-4WH16 J M SUBPLES ND MOUNING BOLS Subplates for directional valve type WH16... must be ordered according to data sheet WK Subplate types: G174/01 - threaded connections P,,,, B - G 1 X,, Y, L - G1/4 G174/02 - threaded connections P,,,, B - M x 2 X,, Y, L - M14 x 1,5 G172/01 - threaded connections P,,, B - G/4 X,, Y, L - G1/4 G172/02 - threaded connections P,,,, B - M27 x 2 X,, Y, L - M14 x 1,5 Subplates and bolts for mounting directional valve: in accordance with PN - EN ISO 4762: M10 x 60-10,9-4 pcs/kit M 6 x pcs/kit must be ordered separately. ightening torques for bolts: M10 x 60 - Md = 62 Nm M 6 x 60 - Md = 12, 2,5 Nm PONR Wadowice S.. ul. Wojska Polskiego Wadowice tel fax ype WH16