WALVOIL MONOBLOCK DIRECTIONAL CONTROL VALVE SD53 3 SECTIONS
For different spool & lever options please contact our sales team
P40 HYDRAULIC CONTROL VALVES AVAILABLE IN 1-7 SPOOL BANKS WITH ADJUSTABLE RELIEF VALVE AND MACHINED FOR CARRYOVER PLUG. ALL STANDARD CONTROL VALVES COME WITH DOUBLE ACTING (A) SPOOLS AND SPRING TO CENTER LEVER CONTROL.
Construction
Р40 is a mono-bloc distributor. Its body is made of cast iron EN-GJL300. Plungers are made of carburized steel with hard chrome plating.
Mounting
The distributor is fixed with two bolts M8
SPECIFICATION
- PORT SIZES = P,T+N = 1/2" BSP - A/B = 3/8" BSP
- CAST IRON BODY - EN-GJL300
- MAX WORKING PRESSURE - P = 250 BAR, T = 50 BAR, A/B = 300 BAR
- MAX FLOW RATE = 40 LPM
- OPERATING TEMPERATURE BETWEEN -40ºC TO +60ºC
- RELIEF VALVE SETTING = 180 BAR STANDARD (MAX = 250 BAR)
- SPOOL LEAKAGE AT 120 BAR = 15CM3 P/M
TO VIEW TECHNICAL DATA SHEET PLEASE VIEW THE PHOTO BELOW
Ambient temperature | -40C...+60C |
Viscosity | 12 ...800 mm2/s |
Fluid temperature | -15C...+80C |
Filtration | 10 to NAS 1638 |
Max operating pressure | 315 bar |
Back pressure | 50 bar |
Nominal flow | 40 l/min |
Leakage(A,B-T) | 15cm3/min at 120bar |
Spool stroke | 6 mm |
Actuating force | < 200 N |
Modification/ Spools | with 1 to 7 |


Application:
This product is applicable to special vehicles like truck mounted crane, wrecker, scrubbing machine and dynamic compactor and can effectively control such actuating mechanisms like motor and oil cylinder.
The company's main products are gear pump series, multi-way valve series, power unit and other products. Design capability, equipment capability, processing and manufacturing capability are at the leading level in China, with scientific and systematic management and production experience.
Hanjiu: Hydraulic gear pump for any hydraulic system, our company uses high-end machine tools, excellence, the most humane service, manufacture and service the world, with good products and services to serve the world, welcome advice.