Manuale d’uso / di manutenzione del prodotto VO40 del fabbricante Parker Hannifin
Vai alla pagina of 28
V O 4 0 O p e n - C e n t e r D i r e c t i o n a l C o n t r o l V a l v e Catalog HY17-8505/UK April 2007.
II Parker Hannifin Corporation Catalog HY17-8505/UK Open-Center Directional Control V alv e V O40 Of fer of Sale Please contact your P ar ker representation f or a detailed ”Off er of Sale”.
III Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Contents Introduction .................................................................................................................................
IV Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Con versio n fact ors 1 kg = 2.2046 lb 1 N = 0.22481 lbf 1 bar = 14.504 psi 1 l = 0.21997 UK gallon 1 l = 0.26417 US gallon 1 cm 3 = 0.061024 in 3 1 m = 3.
1 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Breadth of Line Park er Hannifin is a Fortune 500 company with sales of $9 billion and ov er 400,000 customers in 43 countries.
2 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Customer Service with A Global Reach Park er’ s worldwide network of field sales engineers and Mobile Systems Engineers (MSEs) are the best in the business.
3 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK General Description The VO40 is an open-center directional control v alv e with the fle xibility of sectional construction. Consis- tent with this technology , it is simple in its application, reliable , easy to troub leshoot, and cost eff ective .
4 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Specifications Pressures Inlet P ort: 300 bar (4350 PSI) T ank P or t: 50 bar (725 PSI) W ork P or ts: 300 bar (4350 PSI) Flow Rates (maximum recommended) 40 LPM (10.
5 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK 30 10 20 7.9 2.6 5.3 50 13.2 Flow 0 LPM GPM 0 43.5 3 87.0 6 130.5 9 174.0 217.5 PSI 12 15 Bar Pressure 40 10.6 Pressure Drop - Open Center P T T op Inlet to T op Outlet → T P 8 Section V alve 3 Section V alve 1 Section V alve 30 10 20 7.
6 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Circuit T ypes – P arallel Cir cuit In the open-center parallel circuit, oil flows through the open-center passage when all of the spools are in neutr al.
7 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK 191.0 (7.51) 27.0 (1.06) 80.9 (3.19) 15.0 (0.59) 87.0 (3.42) 92.0 (3.62) 20° A = 76.0 (3.00) + 32.0 (1.26) x No . WORK ST A TIONS B = 32.0 (1.26) + 32.0 (1.
8 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Inch equivalents f or millimeter dimensions are sho wn in (**) Mechanical Jo ystic k 6.00 (0.236) 16.25 (0.640) 5.50 (0.216) ∅ 4.80 (0.189) 62.0 (REF) (2.
9 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Handle Actuation vs. Spool Direction Push Handle Pull Handle • Spool Out • Energize port “B” .
10 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK How to Or der the V O40 V alve Assembl y A specification sheet is located in the back of this book, and is also a v ailab le in an electronic Excel f or mat on our web site .
11 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK V alve Assembl y – General Information The VO40 has tw o basic thread versions - UNF (SAE) or BSP . [04] – Connections Thread G 3/8 BSP Inlet, Outlet & W ork P orts.
12 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK The inlet cov er of V O40 is av ailab le in two v ersions. One is the standard inlet and the other is an inlet with a sole- noid pump unloader (in de v elopment).
13 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK [16] - Main Relief Options PS Adjustable main pilot-operated relief . Adjustment range: 50 to 300 bar (725 to 4300 PSI). PB Adjustable main pilot-oper ated relief (T amper proof aluminum cap).
14 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK The VO40 outlet co v er is av ailable in two v ersions: Standard or with pilot generation and regulation f or propor tional solenoid applications.
15 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK P o wer-Be y ond Closed-Center [33] to [35] – Outlet P or ting Options OUTLET OUTLET T ANK OPEN CEN.
16 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK The VO40 v alv e can be supplied in combinations from one to ten work sections. F or each work section there is a variety of spool options, actuators , positioners and por t accessories.
17 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK [50] – Spool Actuators C Spring centered to neutral position. CD Spring centered with dual control. CHA2 T wo position detent – spool “IN”. Detent in neutral and “A” positions.
18 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK [51] – Lever Brac ket Note: Handle Lev ers are sold separately (see PN listed belo w) SH Standard enclosed handle brac ket. SR Standard enclosed handle brac ket, b ut rotated 180 degrees .
19 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK [60] – Spool Function D Doub le-acting (4-wa y) spool. W ork por ts bloc ked in the neutral position. EA Single-acting (3-wa y) spool. P or t “A” block ed in neutral.
20 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK [62] – Piston Head Side of Cylinder The def ault f or this field is code M. Codes A and B are only used when asymmetr ical spools must be de veloped.
21 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK The VO40 mid-inlet options are split or combined flo w . They are a v ailable with a main R V option. There is also a provision f or an outlet port on the split flow version only .
22 Parker Hannifin Corporation Open-Center Directional Control V alv e V O40 Catalog HY17-8505/UK Assembl y Configuration Form PARKER HANNIFIN CORPORATION - HYDRAULICS GROUP SHEET 1 DE 1 VO40 - DIRECTIONAL STACK VALVE - DATA SHEET REVISION Date STATE: App.
www .parker .com/euroh yd Covering the Industrial, Mobile and Truck markets, each catalog is paired with an interactive CD. Call for your comprehensive guides today.
Cata log ue HY1 7 - 850 5 / UK POD 0 4 / 20 07 PC © Co pyrig ht 20 07 Parker Ha nni fin Co rpo rati on All r igh ts res er ved Parker Hannifi n is the w orld ’ s premier supplier of motion and con trol sy stems an d solutions , w ith sales and man ufacturin g faci lities thr oughout the w orld.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Parker Hannifin VO40 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Parker Hannifin VO40 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Parker Hannifin VO40 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Parker Hannifin VO40 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Parker Hannifin VO40, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Parker Hannifin VO40.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Parker Hannifin VO40. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Parker Hannifin VO40 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
