Auxiliary valves PLC series Direct-acting pressure relief valves

Transcription

1 uxiliary valves LC series Direct-acting pressure relief valves Catalogue HY17-872/UK ugust 25

2 Catalogue HY17-872/UK Contents LC series List of contents age General Information... 3 LC53... Single housing for LC LC Single housing for LC Double housing for LC LC LC Ordering... 11! WRNING FILURE OR IMROER SELECION OR IMROER USE OF HE RODUCS ND/OR SYSEMS DESCRIBED HEREIN OR RELED IEMS CN CUSE DEH, ERSONL INJURY ND ROERY DMGE. his document and other information from arker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users having technical expertise. It is important that you analyze all aspects of your application, including consequences of any failure, and review the information concerning the product or system in the current product catalogue. Due to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing, is solely responsible for making the final selection of the products and systems and assuring that all performance, safety and warning requirements of the application are met. he products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by arker Hannifin Corporation and its subsidiaries at any time without notice. Offer of Sale lease contact your arker representation for a detailed Offer of Sale. 2 arker Hannifin B

3 Catalogue HY17-872/UK General Information LC series LC53 LC82 LC182 LC28 he LC series auxiliary valves are directacting, factory-set pressure relief valves of the cartridge type that can be supplied with or without a threaded plug. hey can also be supplied with housings to facilitate in-line installation. LC valves are intended primarily to act as combined pressure-relief and anticavitation valves - otherwise known as port relief valves - in the service ports of our directional valves. However, they can also be used to advantage in other situations where pressure relief valves in this size range are required. Indeed, LC cartridge valves are purchased in great quantities by several of the world s leading pump and transmission manufacturers. Construction and function LC pressure relief valves are made of high-strength steel and consist of a seat, poppet, spring and nut. fter the pressure setting has been made, the damper nut is locked against the poppet by welding, in order to prevent the factory-set opening value from changing. When the cartridge is supplied with a plug, a spring is included to enable the cartridge to function as an anti-cavitation valve. n anti-cavitation valve is essentially a check valve that enables oil to be sucked from the tank line in order to prevent cavitation in a consumer. he plug is fitted with an O-ring of nitrile rubber. oppets without a pressure relief function are also available. hey are used when only a check valve is required to perform an anti-cavitation function. echnical data Flow capacity he flow capacities of the respective LC valves are dependent on the extent of pressure increment that can be accepted, and are illustrated in the typical graphs that begin overleaf. he nominal flow capacities, however, are as follows: LC53 5 l/min LC82 8 l/min LC l/min LC28 28 l/min ressure-setting flow s standard, the desired pressure is set with a flow of 2 l/min passing through the pressure relief valve. he exception is the LC53, for which the pressure setting is made with a flow of 1 l/min passing through the valve. Weights LC53,6 kg LC82,11 kg LC182,165 kg LC28,39 kg he LC valves are all supplied with a threaded plug. Housing for LC82 cartridge (inclusive of cartridge) 1,6 kg Housing for two LC82 cartridges (inclusive of cartridges) 2,8 kg Hydraulic fluids Best performance is obtained using mineral-base oil of high quality and cleanness in the hydraulic system. Hydraulic fluids of type HL (DIN 5152), oil for automatic gearboxes ype and engine oil type I CD can be used. Synthetic, fire-resistant and environmentally friendly oils can also be used. If in doubt about the suitability of an oil, please contact your nearest arker representative for advice. For best function, oil viscosity should be between 15 and 5 mm 2 /s (cst). Filtration Filtration should be arranged so that arget Contamination Class 2/18/1 according to ISO 6 is not exceeded. emperature emperature range, fluid: -2 o C to +9 o C emperature range, ambient: - o C to +6 o C emperature shock resistance: max. 1 o C/second General he data given in this catalogue is applicable at an oil temperature of 5 o C and viscosity of 3 mm 2 /s (cst) using mineralbase oil complying with DIN 5152, when the cartridge valve is installed in a master manifold. Features and benefits Small dimensions - easy to install Single unit - facilitates installation Very tight - no unnecessary leakage losses Good characteristic small pressure change between different flows Good opening and closing characteristics distinct opening and closing Low hysteresis good precision in pressure maintenance Fast acting reacts quickly to pressure surges Setting locked by welding prevents undesirable changing of pressure setting 3 arker Hannifin B

4 Catalogue HY17-872/UK echnical Information LC53 series Diagram for LC53 pressure relief valve ressure override characteristic nti-cavitation characteristic nti-cavitation valve (N) ressure relief valve ,3 Unless stated otherwise: Edges broken.1-.5 unless indicated otherwise Hydraulic symbol for pressure relief valve nti-cavitation valve (N) R,6 max R,2 max R,1-,3 R1±,2 R,5 max 15 ±1 ±1,5,5±,1 (3±,1) 2,7±,2 5 ±5 Ø2,3 -,1 M18x1,5-6H Ø13,8 +,3 15 min 23 +,2 -,8,1,5 3±,1 Ø,1 Seat embossed with Ø13 mm class III steel ball Impact energy 9±2 Nm Stated dimensions apply before embossing,5 Ø1 +, -,2 Within min applies Machining tools can be purchased from arker Hannifin. Cavity drawing, LC53 arker Hannifin B

5 1 2 Catalogue HY17-872/UK echnical Information LC53 series Single housing Hydraulic symbol for single housing ~6 ~3 ~ XXX/1 X Y Y X 3 5 WW Diagram for LC53 pressure relief valve ressure override characteristic Ordering LC53 mounted in single housing he LC53 mounted in a single housing can be ordered using the ordering numbers below. Should you require a pressure setting not listed in the table, please contact your arker Hannifin representative ressure [bar] Ordering No arker Hannifin B

6 Catalogue HY17-872/UK Dimensions LC82 series Diagram for LC82 pressure relief valves ressure override characteristic nti-cavitation characteristic ,3 Unless stated otherwise: Edges broken.1-.5 unless indicated otherwise 15 ±1 Ø25,3 -,1 Hydraulic symbol for pressure relief valve R1±,2 2±,2,1 Ø3 +2 R,2±,1 5 ±5 R, max 1±,1 8 min M2x1,5-6H Ø18 +,11 Ø13 +,7,5 16 min 1±,2 max 3 max,1 37±,1 6,5 min 35 ±1,5 Seat embossed with Ø16 mm class III steel ball Impact energy 12±2 Nm Stated dimensions apply before embossing Inom 5 min gäller Machining tools can be purchased from arker Hannifin. Cavity drawing, LC82 6 arker Hannifin B

7 Catalogue HY17-872/UK Dimensions LC82 series Single housing Hydraulic symbol for single housing Connection, ank* 18 Connection (pressure)* Connection (pressure)* (18) Mounting hole Ø11 (2x) 18 SW = 12, = 8 Nm *) hread dimension G ½ or G ¾. See page 11. SW = spanner width = tightening torque 7 arker Hannifin B

8 Catalogue HY17-872/UK Dimensions LC82 series Double housing M1 M2 Hydraulsymbol för dubbelhus 11 Connection, ank, plugged (G 3/) , (32) 68 SW = 12, = 8 Nm (2x) Connection M1, pressure (2x)* Mounting hole Ø11 (3x) 56 Connection M2, pressure (2x)* *) hread dimension G ½ or G ¾. See page 11. SW = spanner width = tightening torque 8 arker Hannifin B

9 Catalogue HY17-872/UK echnical Information LC182 series Diagram for LC182 pressure relief valves ressure override characteristic nti-cavitation characteristic ±1 Ø25,3 -,1,1 R1 max Ø,2 M2x1,5-6H Ø2 +,8 Ø1 +,7,1 Hydraulic symbol for pressure relief valve 2±,2,5 R,2±,1 alt.,2±,1x5 19,5 min 27 max,7±,2 5 ±5 R, max alt.,x5 max 1±,2 (56) 11,5±1,5 Ø min 56±,1 **68 min ***72 min ** applies to Ø1 +.7/ *** applies to Ø1,5 35 ±1 Seat embossed with Ø16 mm class III steel ball Impact energy 12±2 Nm Stated dimensions apply before embossing Machining tools can be purchased from arker Hannifin. 1 min 21,5 min,5 6,3 Unless stated otherwise: Edges broken.1-.5 unless indicated otherwise Cavity drawing, LC182 9 arker Hannifin B

10 Catalogue HY17-872/UK echnical Information LC28 series Diagram for LC28 pressure relief valve ressure override characteristic nti-cavitation characteristic 15 1 Without drainage of spring chamber With drainage of spring chamber Seat embossed with Ø25 mm class II steel ball Impact energy 18±3 Nm Stated dimensions apply before embossing 1±,1,5,5 +1 (65,5) 12,8 max Ø5 min 81,5 min 77,5 min 65,5±,1 5 ±1 R, max alt.,x5 max max R,2±,1 alt.,2±,1x5 5 ±5 26 max 2 min 9+,2 3,2 R,6 max alt.,6x5 max R1 max 3,3±,2,5 Ø17H1 16,5 max,1 Ø35, +,1 6 ±2,1 15 ±1 Machining tools can be purchased from arker Hannifin. Ø25H11 M33x2-6H Ø,2H9 Ø,8H11 Ø,1 M 2xR1±,1 Ø,1,5 B,5±,2x5 3,7 +,2 B 2x Free from burns H=,2 max SD 58,31 SW = 3 Ø17H1 +,7 Ø25H11 +,13 ØH9 +,62 Ø,8H11 +,16 = 15 Nm 6,3 Unless stated otherwise: Edges broken.1-.5 unless indicated otherwise Hydraulic symbol for pressure relief valve Groove for O-ring 39.2 x 3 26,5 a) 3 max a) For emergency operation SW = Spanner width = ightening torque Cavity drawing, LC28 1 arker Hannifin B

11 Catalogue HY17-872/UK Ordering LC series LC-series pressure relief valves can be ordered using the ordering numbers in the table below. Should you require a pressure setting not listed in the table, or require the pressure setting to be made at a flow different to standard, please contact your arker Hannifin representative. ressure LC53 LC82 LC182 LC28 [bar] with plug K K K K K K K K K K K K K K K K W U N* 393K * nti-cavitation valve without pressure-relief function LC82 mounted in single housing he LC82 mounted in a single housing can be ordered using the ordering numbers below. Should you require a pressure setting not listed in the table, please contact your arker Hannifin representative. ressure G1/2 G3/ [bar] LC82 mounted in double housing ressure G1/2 G3/ [bar] arker Hannifin B

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