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SY135 SY365 Sany Excavator Hydraulic Main Control Valve Drain Pin Cover for Distribution Valve Housing Assembly

SY135 SY365 Sany Excavator Hydraulic Main Control Valve Drain Pin Cover for Distribution Valve Housing Assembly

sy365 hydraulic main control valve

sy365 main hydraulic control valve

Place of Origin:

China

Model Number:

SY135 SY365

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Product Details
Selling Units:
Single Item
No:
SY135 SY365
Gross Weight:
10KG
Color:
Yellow
Catalog:
Excavator Spare Parts
Name:
Drain Pin Cover
Highlight:

sy365 hydraulic main control valve

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sy365 main hydraulic control valve

Payment & Shipping Terms
Minimum Order Quantity
1 Pc
Packaging Details
Carton
Delivery Time
7-35days
Product Description

Sany Excavator Main Control Valve Drain Pin Cover for SY135 SY365 Distribution Valve Housing Assy

Essentially a proportional pilot hydraulic control valve, the excavator joystick outputs control‑purpose oil to drive the main multi‑way valve instead of directly powering excavator movements, thus regulating the speed and direction of machine actions. Located on the left and right within the operator cabin, the excavator control lever—pilot control lever, hydraulic lever or joystick—is the vital component for operators to command all excavator functions, serving as the machine’s “steering wheel and limbs”.

Operation Mode

All excavator movements are controlled by tilting the joystick in all directions:
  • Boom (main arm) lifting motion
  • Stick (secondary arm) extension and retraction
  • Bucket opening and closing operation
  • Left‑right upper‑structure slewing
  • Coordinated control with foot pedal valves for traveling

Working Principle

A hydraulic pilot valve is integrated inside each handle:
  • Pushing the handle shifts the internal spool
  • Low‑pressure hydraulic control signal is transmitted
  • Main hydraulic multi‑way valve is governed
  • Cylinders and motors execute actions with adjustable speed and direction

Proportional Speed Regulation

Greater handle deflection enlarges spool opening → increases pilot output pressure → expands main valve opening → speeds up boom, stick, bucket and slewing functions. Once the handle is released, return springs restore the handle and spool to neutral, disconnecting the pilot oil circuit, releasing pressure, resetting the main valve, and instantly ceasing all movements.
Machinery Test Report Provided Warranty 3 Months
Video outgoing-inspection Provided Brand Name OEM
Place of Origin China Model Number SY135 SY365
Product name Distributor Valve Cover Pin Seal Cover MOQ 1 Piece
Quality Tested Great Performance Application Excavator
Delivery Time 5-7Days Service Professsional Service
Condition Brand-new Packing Standard Packaging



SY135 SY365 Sany Excavator Hydraulic Main Control Valve Drain Pin Cover for Distribution Valve Housing Assembly 0SY135 SY365 Sany Excavator Hydraulic Main Control Valve Drain Pin Cover for Distribution Valve Housing Assembly 1SY135 SY365 Sany Excavator Hydraulic Main Control Valve Drain Pin Cover for Distribution Valve Housing Assembly 2

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