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hydraulic valve control system

hydraulic valve control system

    Payment Type: L/C,T/T,D/P
    Terms of Trade: FOB,CFR,CIF,EXW,FCA,CPT,CIP
    Delivery Time: 45 Days
    Packaging: standard package; custom package
    Productivity: 2,000,000
    Brand: GRH
    Transportation: Ocean,Land,Air
    Place of Origin: China
    Supply Ability: 6,000,000
    Certificate: CE/ISO9001
    HS Code: 8481201000

Basic Info

Model No.: GKV80

Product Description

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


Technical Data

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

Basic Operation Principle of GKV80

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.

Basic Operation Principle of GKV80-1

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.

Application Example

Electro-hydraulic Controlled with Manual Override

Basic Operation Principle of GKV80-2

3 Sections Stack Valve

Basic Operation Principle of GKV80-3

Manual Control Valve(Tractor Hydraulic System)

Basic Operation Principle of GKV80-4

4 Sections Stack Valve

Basic Operation Principle of GKV80-4

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Jiangsu Guorui Hydraulic Machinery Co., Ltd

 Jiangsu Guorui Hydraulic Machinery Co. Ltd ( abbr. as GRH), since 1986, is the manufacture of hydraulic components and hydraulic system. Main products includes : Valve Families: proportional valves, sectional valves, mono-block valves, hydraulic manifolds, flow control valve( manual and proportional) Gear product family: gear pumps, gear motors, flow dividers, Orbital motor, Mini power pack, pump + motor assembly, hydraulic power station Applications: Agricultural machinery: tractor , combined harvester, etc, 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 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.

Company Info

  • Company Name: Jiangsu Guorui Hydraulic Machinery Co., Ltd
  • Representative: weihua Zhu
  • Product/Service: Hydraulic Valves , Hydraulic Gear Pumps , Hydraulic Motors , Mini Power Pack , Proportional Valve , Hydraulic Parts
  • Capital (Million US $): 20,000,000RMB
  • Year Established: 2004
  • Total Annual Sales Volume (Million US $): US$2.5 Million - US$5 Million
  • Export Percentage: 51% - 60%
  • Total Annual Purchase Volume (Million US $): Below US$1 Million
  • No. of Production Lines: 10
  • No. of R&D Staff: 31 -40 People
  • No. of QC Staff: 21 -30 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): Above 100,000 square meters
  • Factory Location: 666 West Shuanghu Road West, Jianhu, Jiangsu, China.
  • Contact Person: Mr. JohnLu
  • Tel: +86-515-86316688
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