Vickers Counterbalance Valve. CB Series Mainfold Mounting 315 Bar SAE Flange Mounting L/min Subplate Mounting

Transcription

1 Vickers Counterbalance Valve C Series ainfold ounting 315 ar SE Flange ounting L/min Subplate ounting

2 Table of Contents Counterbalance Valve General Description...2 Functional Symbols...2 odel Code...3 Technical Data...3 Flow Curves...3 Circuit Examples...4 ainfold ounting Dimensions...4 Subplate ounting Dimensions...5 SE Flange ounting Dimensions...6,7 Released Part Numbers ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July 2009

3 General Description General: Counterbalance valve are used in hydraulic systems to control the speed of hydraulic motors and cylinders independent of the load (prevents running away). In addition there is a isolater function for pipe burst safety. Counterbalance valve comprises basically of the housing (1), main poppet (2), pilot part (3), pilot spool (4), damping spool (5) and pilot damping (6). Specs: Pressure rating 315 bar Flow up to 560 LP Features: Pilot operated check valve, leak-free function The counterbalance valve controls the returning flow q v2 in relation to the flow being directed into the other side of the actuator q v1. With cylinders the area ratio (q v2=q v1) has to be taken into account y-pass valve, free flow in opposite direction Optional built-on secondary pressure relief valve (only for flange mounted valve) Functional Symbols Without secondary pressure relief valve With secondary pressure relief valve T Valve Type: C 12 K 10/30 C 16 K 10/30 C 25 K 10/40 C 32 K 10/60 Valve Type: C 12 G 10/30 C 16 G 10/30 C 25 G 10/40 C 32 G 10/60 C 12 F 10/30 C 16 F 10/30 C 25 F 10/40 C 32 F 10/60 Valve Type: C 12 F** 10/30 C 16 F** 10/30 C 25 F** 10/40 C 32 F** 10/60 ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July

4 odel Code F3 C 12 G Seal Options F3 Fluorocarbin seals, for Phosephate Ester (class L-HFD) lank Nitrile, for ineral oil nti-wear hydraulic oil (class L-H) Invert emulsion (class L-HF) 2 Counterbalance Valve 3 Size 12 - Size Size Size Size 32 4 ounting Style F - SE flange mounting (CD 62) G - Subplate mounting K - Cartridge only (for manifold) 5 Secondary Relief Valve - No bar (only on F style) bar (only on F style) bar (only on F style) 6 Design Number 7 Orifice 00 - No orifice 30 - f 0.3mm orifice (size 12 & 16) 40 - f 0.4mm orifice (size 25) 60 - f 0.6mm orifice (size 32) Technical Data (for applications outside these parameters, please consult us!) Operating pressure ports, Operating pressure port Pilot pressure port Cracking pressure to ax pressure setting for secondary relief valve Flow rea ratio Fluid temperature range Fluid viscosity range mm 2 /s Fluid cleanliness 20/18/ bar max. 350 bar max bar min; 315 bar max. 2 bar to 350 bar 80 (size 12), 200 (size 16) L/min. 320 (size 25), 560 (size 32) L/min. Poppet seat area = 1 20 Pilot spool area -20 to C Flow Curves (measured at v = 41 mm 2 /s and t = 50 O C) Pressure drop in bar Size 12 Size 16 Size 25 Size 32 Pressure differential in relation to flow, measured at throttle position: Throttle fully open (Px=65 bar) to Flow in L/min Pressure drop in bar Size 12 Size 16 Size 25 Size Flow in L/min Flow in L/min. Pressure differential in relation to flow, measured over the check valve to 3 ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July 2009

5 Circuit Examples Note: Two counterbalance cannot be used to control two cylinders which are forced mechanically to move together, as synchronization and the same pressure cannot be guaranteed in each cylinder. Therefore, the cylinders have to be equipped with two pilot operated check valves. The counterbalance valve is fitted in a common line. In this case, the load pressure must not exceed 200 bar! 0 0 Y anifold ounting (Dimensions in mm) φd φd φd3 1.6 L L12 L φd7 D4H φd6 1.6 φd8 L L7 L L4 L L L8 L9 φd8 L φd5 D9/T1 1. Control port 2. Name plate 1 +/ /- 0.2 Type 1 2 D1 D2 D3 D4 D5 D6 D7 D8 D9 T1 L1 L2 L3 L4 L5 L6 C12K C16K C25K C32K Type L7 L8 L9 L10 L11 L12 Size olts Torque(Nm) Weight C12K kg C16K kg C25K kg C32K kg ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July

6 Sub-plate ounting (Dimensions in mm) H3 3 H L7 L1 L8 L6 1 2 L2 3 L1 L3 L4 φ11 L5 5 Required surface finish of mating piece 1. Control Port 4. O-ring 2. Pressure Gauge Port 5. 6 Valve fixing holes for size Name Plate 0.01/100mm 1.6 Type H1 H2 H3 L1 L2 C 12 G C 16 G C 25 G C 32 G Type L3 L4 L5 L6 L7 L8 Weight O-Ring C 12 G kg 21.3x2.4 C 16 G kg 21.3x2.4 C 25 G kg 29.82x2.62 C 32 G kg 38x3 5 ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July 2009

7 SE Flange ounting, Without Secondary Pressure Relief Valve (Dimensions in mm) φd1/t φd H1 H2 1 L6 L2 φd3 φd4 3 L4 φd5/t2 L () L1 2 6 L2 L3 1. Control Port 4. lanking flange 7. O-ring 2. easuring Port 5. Optional port 3. Flange fixing screws 6. Name plate Type D1 D2 D3 D4 D5 H1 H2 C 12 F C 16 F C 25 F C 32 F Type L1 L2 L3 L4 L5 L6 T1 T2 Weight O-Ring C 12 F kg 25x3.5 C 16 F kg 25x3.5 C 25 F kg 32.92x3.53 C 32 F kg 37.7x3.53 ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July

8 For SE Flange ounting, With Secondary Pressure Relief Valve (Dimensions in mm) 2 φd1/t1 φd3/t D φd4 1 T H1 H2 H3 1 L8 L2 φd5 φd L5 L6 L7 () T L1 L2 L3 L Control Port 4. lanking flange 7. O-ring 2. easuring Port 5. Optional port 3. Flange fixing screws 6. Name plate Type D1 D2 D3 D4 D5 D6 D7 H1 H2 C 12 F** x C 16 F** x C 25 F** x C 32 F** x Type H3 L1 L2 L3 L4 L5 L6 L7 L8 T1 T2 T3 Weight O-Ring C 12 F** kg 25x3.5 C 16 F** kg 25x3.5 C 25 F** kg 32.92x3.53 C 32 F** kg 37.7x ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July 2009

9 Released Part Numbers Part Number odel Code C-12-F C-16-F C-25-F C-32-F F3-C-12-F F3-C-12-F F3-C-12-K F3-C-12-G F3-C-16-F F3-C-16-F F3-C-16-K F3-C-16-G F3-C-25-F F3-C-25-F F3-C-25-F F3-C-25-K F3-C-25-G F3-C-32-F F3-C-32-F F3-C-32-F F3-C-32-K F3-C-32-G Items in bold are preferred product ETON Vickers Counterbalance Valve V-VLSU-C005-E1 July

10 Eaton Hydraulics Group US Lone Oak Road Eden Prairie, N US Tel: Fax: Eaton Hydraulics Group Europe Route de la Longeraie orges Switzerland Tel: +41 (0) Fax: +41 (0) Eaton Hydraulics Group sia Pacific 11th Floor Hong Kong New World Tower 300 Huaihai Zhong Road Shanghai China Tel: Fax: Eaton Corporation ll Rights Reserved Printed in US Document No. V-VLSU-C005-E1 July 2009