Pressure reducing/relief valve, pilot operated type UZCP10

Transcription

1 ressure reducing/relief valve, pilot operated type UZC10 NS10 up to 1, Ma up to 80 dm /min D SHEE - OER RION MNU NUL WK LICION he pressure reducing/relief valve type UZC10 pilot operated is used to hold constant pressure in the system aside from flow direction. he valve is designed for subplate mounting in any position in hydraulic systems. DESCRIION OF OERION UZC10-2/100 W UZC10-2/100 Y Y he pressure is set by means of the pilot valve (2). If the pilot valve (2) is open then the fluid flows through it. he flow is branched out of the main flow reduced by hydraulic cascade () and affects the pilot valve (2) and the spool (4) of the main valve (1) which mates with the cylindrical surface of the sleeve (). he spool (4) movement is limited by the spring (). If the pressure in line exceeds the set pressure at the pilot valve (2), then it opens and allows the fluid flow to drain to the tank through the line Y (external drainage) - version UZC10-2 Y or through the line (internal drainage) - version UZC10-2/ W.Opening the pilot valve (2) disturbs the state of equilibrium at the main spool and causes a new throttle dumping is established so that the pressure behind it, is independent on flow rate. If the pressure increase in line is so high, then the connection - is closed and the connection - is open, then the valve operates as a pressure relief valve. It prevents the system from excessive pressure increase in line, and at the same time it stabilizes the pressure at necessary level irrespective of flow direction. ype UZC WK

2 ECHNICL D Hydraulic fluid Required filtr f ltrat ation Recommended filtration Nominal fluid viscosity Viscosity range Fluid temperature range (in a tank) mbient temperature range Maxim imum operat ating pressure verage pilot flow Weight mineral oil up to t 1 µm up to 10 µm 2 o 7 mm /s at temperature C 2 2,8 up to 80 mm /s recommended max -20 oc up to +70 C 1, 1, Ma 0, dm /min 4, kg o o o 40 C up to C o o -20 C up to +70 C INSLLION ND OERION REQUIREMENS 1. During the operation one must maintain the recommended fluid viscosity and provide proper filtration specified in this Data Sheet S - Operation Manual. 2. In order to ensure safe and failure-free free operation of the valve, the following must be checked: operation of the valve cleanliness of the hydraulic fluid. In order to provide proper tightness of the valve connection to a hydraulic system, one should ensure tightening torque and valve operation parameters as a s specified in this Data Sheet - Operation Manual. 4. person operating the valve must be familiarized with the content of this Data Sheet - Operation Manual. SCHEMES Graphic symbols for the valve type UZC10... Y version UZC10...W.W... version UZC10...Y... WK ype UZC10

3 OVERLL ND CONNECION DIMENSIONS 0, G1/4 depth S stroke S S 22 S stroke 4 8 Y O O O1, depth M10x1 depth 9 80, O, - 4 holes Y r 0,01/100 mm 0, 21,4 2, 4, M depth 12-4 holes 70 (min) O11,2 (max)- 4 holes* (,,, Y) 4 Y* 17, Y* 9 4 0,8 7, 27 1,7 81 (min) djustment element 1 (rotary knob) 2 - djustment element 2 (set screw with internal hexagon) - djustment element (lockable rotary knob) 4 - External port Y - for version with external pilot oil drain UZC10...Y... only (plug G1/4 for other versions) - Seal o-ring 12 x 2 version UZC10...Y pcs/kit (,,, Y) version UZC10...W... - pcs/kit (,, ) - Mounting holes configuration of a subplate in accordance with the standards listed below: CEO R 121H - symbol CEO (nominal size CEO 0) ISO symbol ISO fixing screws M x pcs/kit in accordance with N - EN ISO 472 tightening torque Md = 1 Nm 7 - Required surface finish of a subplate 8 - Space required to remove the key from the lock NOE: (*) - port Y in a subplate - applied to version UZC10...Y... only ype UZC WK

4 ERFORMNCE CURVES Flow cur c urves 2 o measured at viscosity ν = 41 mm /s and temperature t = 0 C 0 Charakteristic curves p (Q) flow direction (reducing function) 2 outlet pressure [Mpa] Q [dm /min] 12 Charakteristic curves p (Q) flow direction (relief function) 10 outlet pressure [Mpa] Q [dm /min] WK ype UZC10

5 HOW O ORDER Nominal size(ns) NS10 = 10 UZC 10 * Series number (1-9) - connection and installation dimensions unchanged = X series 2 = 2 Settable pressure range up to Ma = 0 up to 10 Ma = 100 up to 20 Ma = 200 up to 1, Ma = 1 ilot oil drain internal, along with oil drain to port external, through independent port Y = W = Y djustment element rotary knob = 1 set screw with internal hexagon = 2 lockable rotary knob = Sealing NBR (for fluids on mineral oil base) FKM (for fluids on phosphate ester base) = no code = V Further requirements in clear text (to be agreed with the manufacturer) NOES: ressure reducing/relief valve should be ordered according to the above coding. he symbols in bold are preferred versions available in short delivery time. Coding example: UZC10-2/1 W 2 ype UZC WK

6 EXMLE OF LICION IN HYDRULIC SYSEM UZC /...W... M SUBLES ND FIXING BOLS Subplates must be ordered according to catalogue sheet WK Subplate symbols: G /01 - threaded connections G /8 G 7/01 - threaded connections G 1/2 G 89/01 - threaded connections G1/4 G 7/02 - threaded connections M22 x1, Subplates and screws fixing pressure reducing/relief valve M x ,9-4 pcs/kit in accordance with N-EN ISO 472 must be ordered separately. ightening torque Md = 1 Nm. NOE: he subplate symbol in bold is the preferred version available in short delivery time. ONR Wadowice S.. ul. Wojska olskiego Wadowice tel fax WK ype UZC10