4/3, 4/2 and 3/2 directional valve. with mechanical,manual operation. Type WMM16, 25 and 32. Contents. Features 01/08 2.5

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1 01/0 /, / nd / directionl vlve with mechnicl, mnul opertion.5 Type WMM1, 5 nd Size 1, 5 nd Up to 15r Up to 10L/min Contents Function nd configurtions 0 Specifictions 0 Symols 0 Technicl dt 0 Chrcteristic curves 0-05 Unit dimensions 0-0 Fetures - Direct operting directionl spool vlves with mechnicl,mnul opertion - For su-pltes mounting - Hnd lerver - Porting pttern confirms to DIN 0 form, nd ISO

2 0/0 Hengli hydrulic Hydrulic components Directionl vlve Type WMM1, 5 nd Function nd configurtions 0 The type WMM vlves re hnd lever opertion directionl spool vlves. They control the strt, stop nd direction of flow. The directionl vlves siclly comprise of housing (1), hnd lever (), control spool (), s well s one or two return springs (). In the unoperted condition the control spool () is held in the neutrl or its initil position y the return springs (). The control spool () is ctuted y the hnd lever () vi joint nd pin. The spool is therey moved out of its initil position into switched position. fter the hnd lever() hs een returned to the zero switched position, the spool () is returned to the neutrl position vi the return springs (). WMM.../F... (With the detent) The directionl vlves with one detect, or switched position, cn e orientted t ny switched position. 1 T P Y Type WMM...L7X Type WMM...L7X/F (with detent) Specifiction wys = Nominl size 1 =1 Nominl size 5 =5 Nominl size = Symols e.g. C, E etc. see elow WMM - L7X / * Further detils in cler text No code = NR sels V = FKM sels No code = F = L7X = Series L70 to L79 (L70 to L79: unchnged instlltion nd connection dimensions) 11

3 Directionl vlve Type WMM1, 5 nd Hydrulic components Hengli hydrulic 0 /0 Symols -position vlve trnsition position PT -position spool vlve symols PT L(Y) PT L(Y) =C =D =K =G =H =J =L =M 0 =Z =P =Q -position vlve trnsition position o PT Exmple: Three-position E-type cn derive two-position E nd E. -position spool vlve symols o PT L(Y) o PT L(Y) =E =F =R =S =T =U =V =W Notes: For size 1, the port L should e used s drin port(x,y re not used), while for size 5 nd, the port Y is used s drin port(x, L re not used) Technicl dt Nominl size 1 5 Weight kg pprox. pprox.1. pprox.9 ctution force with spring return N pprox.75 pprox.5 pprox.170 with detent N pprox.75 pprox.5 pprox.170 ctution ngle out the neutrl postion 0 Mx.operting pressure port,,p r 15 Port T r 50 Fluid Minerl oil suitle for NR nd FKM sel Phosphte ester for FKM sel Fluid temperture rnge -0 to +0 (NR sel) -0 to +0 (FKM sel) Viscosity rnge mm /s. to 0 Degree of contmintion Mximum permissile degree of fluid contmintion: Clss 9. NS 1 or 0/1/15, ISO0 11

4 0/0 Hengli hydrulic Hydrulic components Directionl vlve Type WMM1, 5 nd Chrcteristic curves (Mesured t t=0 ±5, using HLP) 0 Type MM Pressure differentil (r) Pressure differentil (r) Type MM Type MM... Pressure differentil (r) Pressure differentil (r) 1 1 Symol R(-) ΔP-Q chrcteristic curves suitle for symol E, W nd R Spool S P T Spool R T T P P Pressure differentil (r) Spool symol Spool symol Flow direction P to P to to T to T P to T E, Y, D F - G, F H, C, Q - J, K, L M, W - R - - U S - Flow direction P to P to to T to T P to T E 1 - F 1 1 G H 1 J 1 - L 1 - M 1 - P 1 Q 1 - R T 5 U 1 - V 1 - W 1 - spools L neutrl position T spools U neutrl position T ΔP-Q chrcteristic curves suitle for symol G nd T Others symols' chrcteristic curve T P T P T P

5 Directionl vlve Type WMM1, 5 nd Hydrulic components Hengli hydrulic 05 /0 Chrcteristic curves (Mesured t t=0 ±5, using HLP) The switching performnce of the vlves depends on the filtrtion. To chieve the specified dmissile flow vlues, we recommend full flow filtrtion with 5 µm. The flow forces cting within the vlves lso ffect the flow performnce. With wy vlves the specified flow dt thus pply to norml opertion with volume flow directions (e.g. from P to nd t the sme time return flow from to T) (see tle). If only one flow direction is ville, in certin cses, the dmissile flow cn e significntly smller (e.g. when using wy vlve s wy vlve, due to locked connection or ). Nominl size 1 llowing flow qv L/min, -position vlve llowing flow qv L/min, -position vlve Symol Operting pressure P r Operting pressure P r Symol C E,H,J,L,M,Q,R,U,W D F,P K G,S,T Z V C,D,K,Z E,H,J,L,M,Q,R,U,W F,P G,S,T V Nominl size 5 llowing flow qv L/min, -position vlve llowing flow qv L/min, -position vlve Symol Operting pressure P r Operting pressure P r Symol C E,J,L,M,Q,R,U,W D F K G,T Z H P V C, D, K, Z E, F, G, H, J, L, M, P, Q, R, T, U, W V Nominl size -position nd -position vlves with spring return Flow L/min Spool symol E,J,L,M,Q, R,V,U,W F,G,H,S,T C,D,K,Z When...(r) position nd -position vlves with detent ll symols

6 0/0 Hengli hydrulic Hydrulic components Directionl vlve Type WMM1, 5 nd Unit dimensions: nominl size 1 Ф1 5 0 Y Ф Ф11 Ф1.7 Ф. Ф11 T P X 0.01/0mm o Y Spool symo:c,d,k,z ll -position vlves 5 L T 1 P Requirement for mounting surfce ФH/ Switched position Ф M;19 Ф19mx (;;P;T) M/19 1 Switched position Switched position Switched position 0 ( nd for -position vlve) -position nd -position vlves with detent, -position vlve with spring centered 5 -position vlve with return spring Nmeplte 7 locting pins x O-ring.5 (ports,, P nd T ) O-ring (port L ) It must e ordered seprtely, if connection plte is needed. Type : G17/01, G17/0, G17/01 G17/0,G17/0 (Port X nd Y unville, returning directly y port L ) Vlve fixing screws: Internl hexgon screw, G/T , -M 0 Tightening torque M =75 Nm -M 55 Tightening torque M =15.5 Nm must e ordered seprtely 11

7 Directionl vlve Type WMM1, 5 nd Hydrulic components Hengli hydrulic 07 /0 Unit dimensions: nominl size 5 70 Ф1 1 o -position vlve -position vlve Ф 9.5 (-position vlve with return spring) /0mm Y P T X Requirement for mounting surfce 7 Port X nd L unville, port Y is used s drin port T P Y 17.5 Ф.5H1; Фmx P Switched position Switched position Switched position 0 O-ring 19 (ports X nd Y ) 5 O-ring 7 (ports,, P nd T ) locting pings 1 7 Nmeplte Фmx Y M1;5 Ф.5mx ;;T Vlve fixing screws: Internl hexgon screw G/T , -M1 0 Tightening torque M =Nm must e ordered seprtely It must e ordered seprtely if connection plte is needed. Type: G151/01(G1 ), G151/0 (M ) G15/01(G1½), G15/0(M ) G15/01(G1 ¼), G15/0 (M ) G15/0(Flnge connection) 117

8 0/0 Hengli hydrulic Hydrulic components Directionl vlve Type WMM1, 5 nd Unit dimensions: nominl size Ф o -position vlve -position vlve Ф 9 (-position vlve with return spring) 5 7 T P Y X /0mm 0. Requirement for mounting surfce Port X nd L unville, port Y is used s drin port 1 Switched position Switched position Switched position 0 O-ring 19 (ports X nd Y ) 5 locting pins 1 O-ring ports,, P nd T ) 7 Nmeplte It must e ordered seprtely if connection plte is needed. Type: G157/01(G1 1/), G157/0 (M ) G15/ (Flnge connection) Vlve fixing screws: Internl hexgon screw G/T , -M0 0 Tightening torque M =0 Nm must e order seprtely Фmx(P) T Ф.5H1; P Y M0;5 Фmx Y Фmx ;;T 11