3/2- and 2/2-way cartridge valve type BVE

Transcription

1 3/2- and 2/2-way cartridge valve type BVE for any flow direction, zero leakage, all ports pressure resistant Flow Q max = 70 lpm Perm. pressure p max = 400 bar Additional valves with same function: ' Type EM, EMP D 7490/1 ' Type BVG 1, BVP 1 D 7765 (Q max = 20 lpm, p max = 400 bar) ' Type NBVP 16 D 7765 N (Q max = 20 lpm, p max = 400 bar) ' Type BVG 3, BVP 3 D 7400 (Q max = 60 lpm, p max = 315 bar) 1. General The solenoid actuated 2/2- and 3/2-way directional valves type BVE are designed as seated cone valves. All ports are equally pressure resistant due to the internal pressure compensation. The valve returns automatically into its idle position because of the spring return, while not actuated. The valves are completely made of steel, with all functional internal components being hardened, permanently lubed by the hydraulic fluid. As these valves are designed as cartridge valve, installation is most simple and quick. The solenoid coil can be easily replaced, without opening the hydraulic system e.g. when a different voltage is required. There are also individual connection blocks available for these valve, enabling direct pipe connection. Cartridge valve Version with connection block 2. Available versions, main data Order example: BVE 3 Z - B 2,5 - G 24-1/2 Table 3 Table 4 Table 1: Basic type (cartridge valve), size Table 2: Orifice (additional element) only available for versions with housing, see table 4 Coding Flow Pressure Symbols Q max p max Z R S (lpm) (bar) BVE Coding # Spare part No. (mm) System or accumulator charging pressure range B 2, b about 300 bar B c about 200 bar B 3, d about 200 bar B e about 100 bar 2.2 Table 3: Actuation solenoid Coding with plug- with without (standard) LED-plug plug G 12 L 12 X 12 G 24 L 24 X 24 G X 98 G X 205 WG WG Main data, see also sect. 3.2 U N = 12V DC U N = 24V DC U N = 98V DC U N = 205V DC U N = 110V AC U N = 230V AC 0 1 ) a --- Table 4: Connection block Coding Basic type Ports A, B and C (DIN ISO 228/1) (BSPP) - 1/2 BVE 3 G 1/2 1) No hole, suited for customized orifice diameters acc. to the p-q-curve (sect. 3.1). Can be ordered separately as spare part via the order No by HAWE Hydraulik HAWE HYDRAULIK SE STREITFELDSTR MÜNCHEN D 7921 Directional seated cartridge valve type BVE March

2 D 7921 page 2 3. Additional parameters 3.1 General and hydraulic Installed position Over lapping at 3/2-way directional valves Operating pressure Material and surface treatment Mass (weight) Any Negative (transition from one to the other valve position is only completed in the respective end position). All ports are interconnected until the end position is achieved. p max = 400 bar Steel, nitrous hardened Cartridge valve approx. 0.7 kg incl. connection block approx. 1.4 kg Hydraulic fluid Hydraulic oil acc. to DIN table 1 to 3; ISO VG 10 to 68 acc. to DIN Viscosity range: min. approx. 4; max. approx mm 2 /s Optimal operation range: approx mm 2 /s Also suitable are biologically degradable pressure fluids type HEPG (Polyalkylenglykol) and HEES (synth. ester) at operation temperatures up to approx. +70 C. Temperature Ambient: approx C Fluid: C, pay attention to the viscosity range! Start temperature down to -40 C are allowable (Pay attention to the viscosity range during start!), as long as the operation temperature during subsequent running is at least 20K higher. Biological degradable pressure fluids: Pay attention to manufacturer's information. With regard to the compatibility with sealing materials do not exceed +70 C. Flow limitation It is necessary to limit the flow down to the permissible range depending on the system pressure via throttles (see sect. 2.1). This applies to all circuits fed by an accumulator or when connected to high pressure circuits fed by high delivery pumps. The orifice must be located on the accumulator side always. With valves version..z.. these should be installed in port C. For more detailed information, see table 2, section 2 p-q-curve Basic valves Additional orifice Back pressure p (bar) Back pressure p (bar) Flow Q (lpm) Flow Q (lpm) Fluid viscosity during the measuring approx. 60 mm 2 /s

3 D 7921 page Electrical data The solenoids are built and tested acc. to VDE 0580 Coding G 12 G 24 G 98 G 205 WG ) WG ) L 12 L X 12 X 24 X 98 X 205 Nom. voltage U N 12V DC 24V DC 98V DC 205V DC 110V AC 230V AC Nominal power P N (W) Plugs and circuitry EN (DIN Pg 9) (see also D 7163) Type G... Type L.. Type WG... Solenoid terminals Switching time (reference value) On or Off: approx ms, 2-3 longer with WG... Switching/hour approx. 2000, approximately evenly distributed Protection class IP 65 (plug properly mounted), DIN EN / IEC Insulation material class F Contact temperature approx. 98 C, at ambient temperature 20 C Switch-off energy W A 0.5 Ws Surface treatment DIN Fe/Zn 12 bk cc ( solenoid) Relative duty cycle during operation (100% ED stamping on the solenoid) Ambient temp. } U ( C) Rel. duty cycle %ED-5 min Additional solenoid voltages: - 48V DC - 72V DC - 80V DC 1) DC-solenoid 98V DC or 205V DC with rectifier circuit in the plug is, suited for mains 50 and 60 Hz.

4 D 7921 page 4 4. Unit dimensions All dimensions in mm, subject to change without notice! Cable gland Pg 9 Cartridge valve type BVE 3 approx. 34 O-ring 21x3.53 Polyurethane 95 Sh O-ring 17.12x2.62 NBR 90 Sh Manual emergency actuation a/f 19 max. torque 40 Nm approx Order coding for spare parts (e.g. replacement) Coil system: Coding Order No. Solenoid G12, L12, X V coil G24, L24, X V G48, X V G72, X V G80, X V WG110, X V WG230, X V Plug : Coding G.. = MSD Coding L.. = SVS Coding WG.. = MSD P10 Seal kit (O-rings): DS Manual emergency actuation Actuation aid (do not use any sharpedged parts) Mounting hole for type BVE 3 Z Reaming depth The valve may be actuated by pressing down the brass bolt visible from above by means of a steel pin or a screw driver etc. Note: All pressure apparent at port B loads on the cross section of the brass bolt Ø3 i.e. 100 bar or 70 N! 12 2 ) +#26 2 ) 2) This groove improves the flow characteristic, but is not necessary for proper function Mounting hole for type BVE 3 R and S Reaming depth Detail at X

5 D 7921 page 5 Version with connection block Type BVE 3 Z /2 Type BVE 3 R (S) /2 Ports conforming DIN ISO 228/1 (BSPP): A, B and C = G 1/2 Ports conforming DIN ISO 228/1 (BSPP): A and B = G 1/2 5. Appendix Tapped plugs a/f 30 Mounting holes in the manifold may be blocked if required by tapped plugs e.g. if uniform manufactured manifolds should be equipped with or without cartridge valves depending on application. for type Order coding BVE 3 S Sk b BVE 3 R Sk a BVE 3 Z Sk c BVE 3 Z Sk d