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|Delivery Time:||45 Days|
Model No.: GKV80-2
Introduction of GKV80
Being the one of most trustworthy organization and guided by knowledgeable professionals, we are actively committed towards offering a broad assortment Sectional Valves to our clients. This range of Sectional Valve is fabricated by employing finest quality basic materials by experienced professionals keeping in mind industry defined norms and standards. Along with this, the offered range of valves is available in various customized options, shapes and sizes to meet the specific requirements of clients. We market a wide assortment of sectional valves manufactured by GRH perfectly suitable for mobile and industrial applications. These are available in various flow capacities. These valves come with a range of spool options with adjusted relief valves and its levers.
GKV 80 series sectional valves provide the following fuctions:
● Inlet module with pilot supply
● A /B port with overload valve on main section
● A port with overload valve on work section.
● B port with overload valve on work section.
● A port with dump valve
● B port with dump valve
● A/B port with a mechanical P.O check
● A port with a mechanical P.O check
● B port with a mechanical P.O check
● End section with oil return port.
● End section without oil return port.
● End section with power beyond port.
● Provide other cartridge valve option
GKV80 Series sectional valve provides the following features:
● Cast iron body (inlet section, main section and end section).
● Spring cap, mechanical detent cap, as well as electoral or hydraulic pilot controlled module body are made by cast aluminum or die cast aluminum.
● Parallel circuit, each section have its own load Check Valve,each section has load option relief option and relief style options.
● Can be changed to series circuit.
● Provides dump valve options for each center valve.
● Provides different drive modules (Hydraulic remote, manually control, wire driving).
● Provides power beyond port.
● Can be modified to be a closed center valve.
● Provides mechanical detent
● Provides options for mechanically actuated P.O check valves to satified with the needs for tractors and mobile cranes
● Provides different spool fuction to be used for controlling double acting, single acting cylinders, hydraulic motors
● Provides floating fuction for spools
● Provides excellent flow characteristics small operating force
● Can be assembled with 1-8 main sections
Rated Flow Rate: 80L/min
Maximum Flow Rate: 100L/min
Minimum Flow Rate: 20L/min
Maximum Pressure at P port: 350bar
Maximum Pressure at A.B port: 350bar
Maximum Pressure at T port: 25bar
Internal Leakage(@70bar)A.B to T: 15-20cc/min
Internal Leakage(@70bar)A.B to T with P.O check: 2-5cc/min
Spool Stroke(1.2position): +7/-7mm
With flooating function(1.2position): +7/-7 -- 10mm
Solenoid can be either 12 VDC or 24 VDC, corresponding current is 0-1.5 or 0-0,75 Amp
Basic Operation Principle
GKV series sectional valve is an open centered 3-position 4-way valve. When spool is in its neutral position, the flow from pump passes through the neutral passage to tank, with very low pressure drop. When one of the spool is moved to 1 or 2 position, then neutral passage is blocked. The flow from pump can only pass through parallel passage to load check valve, then, trough the bridge and spool opening to work port A or B.
For multi-section valves, if one of the section spool is in 1 or 2 position, then, there is no flow in its down stream section neutral passage. The main throttle occurs on the valve opening between bridge passage and spool. The operator can control more than one spools, but the magnitude of the flow rate for each controlled section is dependent on the load.
Electro-hydraulic Controlled with Manual Override
3 Sections Stack Valve
Manual Control Valve(Tractor Hydraulic System)
4 Sections Stack Valve
GRH, since 1986, is the manufacture of hydraulic components such as proportional valves, sectional valves, mono-block valves, hydraulic manifolds, flow Control Valve( manual and proportional) , gear pumps, gear motors, flow dividers, Orbital motor, Mini power pack, pump + motor assembly, hydraulic power station
Applications: Agricultural machinery: tractor , combined harvester, etc,
Forest machinery: wood cutter, log splitter , sweeper, lawn mover
Construction machinery: excavator, grader, loader, earthmover, etc.
Industrial equipment: such as plastic machinery , metallurgy industry, textile machinery, package machine, machining tools, etc
Mobile application: trucks, vehicles, boom lift and scissor lift, cranes, etc
Road machinery: sweeper, paver, compactor
Marine and ship industries
GRH is the supplier of big agricultural machinery players, construction machinery players, such as Terex, JCB , CNH, John Deere, DEUTZ, etc. GRH has been working with Terex Group for 10 years, working with YTO for 6 years and has been selected as the Best Supplier for 5 continuous years. GRH manufacture covers an area of 120,000㎡, with a construction area of 60,000 ㎡, with a total staff of 340 plus. Whenever you step inside, the shop always looks clean and in very good order.
We appreciate your visit to GRH facilities. We appreciate your cooperation with GRH.