Directional Control Valves

Transcription

1 Overview HYDAC offers several functions of the Directional Control Cartridges. HYDAC Manually operated position, - way normally closed, spring return, directional valve features poppet design. It offers bi-directional load holding and low internal leakage. Models are available for flows up to gpm ( lpm) with pressure rating up to 6 psi ( bar) HYDAC Piloted -way hydraulically operated spool type directional valve used for functions requiring remote pilot actuation. Models are available for flow rates up to 7 gpm (6 lpm) with pressure rating up to psi ( bar). Hardened spool or poppet to ensure extended service life. All external surfaces zinc-plated PN#8769 / 7. / CHY-89 INNOVATIVE FLUID POWER

2 WS8WM- Poppet Bi-directional, Push to Operate, Manually Operated Up to gpm ( l/min) 6 psi ( bar) Hydraulic Symbol Description A screw-in cartridge, manually operated, -way, position, normally closed, direct acting, poppet type, intended for use as a bi-directional load holding device in hydraulic circuits requiring manual operation and low internal leakage. Operation The WS8WM- blocks flow, leakfree, in both directions until an operator pushes the button against the bias spring and opens the flow path between port to port bi-directionally. The flow path will be open as long as the plastic button is pushed down. Both ports could be fully pressurized Easy to operate manually Spring return Push type manual override button, protected by rubber cap Performance Pressure Drop bar psi 8 6 Measured at 8 SUS ( cst) Toil = F (6 C) Specifications Operating Pressure Nominal Flow Internal Leakage 6 psi ( bar) gpm ( l/min) Leaktight, less than drops/min. at 6 psi (. cc/min at bar) Required Push Force 9 to Lbs ( to 7 N) depending on operating pressure Fluid Operating Temp Range - to 8 F (- to C) (Consult factory for usage at temp. outside range.) Ambient Temperature Range - to F (- to 6 C) Fluid Compatibility Mineral-Based or synthetics with lubricating properties. Viscosity to SUS (7. to cst) Filtration /9/6 or cleaner per (ISO 6) Use with filter rated ß Installation No orientation restrictions Cavity FC8- (see Line Bodies & Cavities section) Cavity Tools Cartridge Weight Cartridge Material Seal Kits Buna-N Viton Rougher: Finisher: lbs (.9 kg) Steel with hardened work surfaces. Zinc plated exposed surfaces. Buna N or Viton o-rings. PTFE back-up rings. FS8-N FS8-V P/N: 9 P/N: 76 gpm l/min Flow Rate INNOVATIVE FLUID POWER PN#8769 / 7. / CHY-89

3 Dimensions. Max. (. Max.).7 (9) Manual Operation Torque -. ft-lbs (Torque Nm) 7/8 HEX Torque 8.- ft-lbs (Torque - Nm) Model Code WS8WM--C-N Valve Model Body & Ports C = Cartridge only AS6 = SAE-6 ports, aluminum Body SS6 = SAE-6 ports, steel Body Seals N = Buna-N V = Viton.8 (.). (8). ().8 (7.).7 (8.8). (8). Thick (8.7). (.).6 (.). () All measurements in inches (mm). *Subject to technical modifications ø. (ø.7) /-6UNF-A Standard Line Bodies* Code Part No Material FH8-AS6 9 FH8-SS6 697 Aluminum, anodized Steel, zinc plated *Please refer to Line Bodies & Cavities section for details Pressure Rating psi ( bar) 6 psi ( bar) Weight. lbs (. kg). lbs (. kg) PN#8769 / 7. / CHY-89 INNOVATIVE FLUID POWER

4 Directional Control Valves HPMSE- Piloted -Way Spool, Hydraulically Operated 7 gpm (6 lpm) psi ( bar) Hydraulic Symbol Description A screw-in cartridge valve, spool type, hydraulically pilot operated directional valve for three way functions requiring remote pilot actuation. Operation When pilot pressure is applied to port, the spool begins to shift redirecting the flow from port to port to port to port. Pressure at port is additive to the spring bias. Hardened spool and body to ensure extended service life and low leakage All external surfaces zinc-plated Specifications Operating Pressure psi ( bar) Nominal Flow 7 gpm (6 l/min) at psi (7 bar) P Fluid Operating Temp. Range - to 8 F (-9 to C) Ambient Temperature Range - to 8 F (-9 to C) Fluid Compatibility Mineral-Based or synthetics with lubricating properties. Viscosity to SUS (7. to cst) Filtration /9/6 or cleaner per (ISO 6) Installation No orientation restrictions Cavity FCM- (see Line Bodies & Cavities section) Cavity Tools Rougher: Finisher: 8 8 Cartridge Weight. lbs (. kg) Cartridge Material Steel with hardened work surfaces. Zinc plated exposed surfaces. Buna N or Viton o-rings. PTFE back-up rings. Seal Kits Buna-N Viton FSM-N FSM-V P/N: 6 P/N: 6 Performance bar psi 8 Measured at SUS (8 cst) T Oil = F (8 C) Pressure Drop or gpm l/min Flow 6 INNOVATIVE FLUID POWER PN#8769 / 7. / CHY-89

5 Dimensions.8 (.9). (.7). (6). (.7) HEX Torque ft-lbs (Torque 6 Nm).6 ().6 (9.9) 6. (6.) 7. (8.) Model Code HPMSE--SS-N- Valve Model Body & Ports C = Cartridge only AS = SAE- Ports, Aluminum Body SS = SAE- Ports, Steel Body (Ports & = SAE-6) Seals N = Buna-N V = Viton Bias Spring* = psi *Consult factory for alternative bias springs. x ø.6 (ø.). Thick (76.). (.). (.7). (7.). (.7).67 (7) ø.98 (ø.) M x.-6f.7 (6.8).6 (.) ø.7 (ø) ø.9 (ø8) ø. (ø6) All measurements in inches (mm). *Subject to technical modifications ø. (ø) Standard Line Bodies* Code Part No Material FHM-AS 677 FHM-SS 66 Aluminum, anodized Steel, zinc plated *Please refer to Line Bodies & Cavities section for details Pressure Rating psi ( bar) psi ( bar) Weight.88 lbs (.66 kg) 7. lbs (7.77 kg) PN#8769 / 7. / CHY-89 INNOVATIVE FLUID POWER 7