Foot Pedal Valve
5 week ago
Product details
Foot Pedal Valve
1. Product Overview
Foot pedal valve is a hydraulic pilot control valve widely used on crawler excavators. Operated by foot, it converts foot stepping motion into pilot hydraulic pressure signals to control the actions of hydraulic actuators.
There are multiple types including single foot pedal valve, dual foot pedal valve and single-pedal dual-circuit valve. Different model codes (Type A and other variants) adopt different internal spool structure, oil port arrangement and control logic. The breaker control valve belongs to a special type of foot pedal valve, specially used for hydraulic breaker operation control. High-quality interchange aftermarket valves serve as economical replacement parts for equipment maintenance.
Dual Foot Pedal Valve A is reliable Excavator Spare Parts. It is a dual‑channel pilot‑operated Hydraulic valve assembly. It receives pilot pressure oil supplied by the hydraulic pump, and outputs independent proportional pilot signals to actuate the main control valve group of the whole hydraulic system. Widely fitted on excavators and other construction Machine, this pedal valve assembly is suitable for original equipment assembly, field overhaul and aftermarket worn‑component replacement.
2. Main Technical Parameters
Item Specification
Product Name Hydraulic Foot Pedal Valve
Control Type Hydraulic pilot proportional control / On-off control
Pilot Working Pressure 3.0 ~ 3.5 MPa
Operating Mode Foot operation
Applicable Hydraulic Oil ISO VG46 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +80℃
Seal Material NBR; FKM sealing parts optional
Main Classification Single circuit, dual circuit, single pedal dual circuit, breaker control valve
3. Working Principle
When the operator steps on the pedal, the internal spool moves, adjusting the flow of pilot oil and generating corresponding pilot pressure signals.
These hydraulic signals are transmitted to the main multi-way valve, pushing the main spool to shift, so as to control the flow direction of main hydraulic circuit and realize machine movements such as travelling and hydraulic breaker striking.
Built-in return spring automatically resets the pedal when stepping force is released, cutting off control signals and stopping the corresponding action.
4. Core Advantages
1. Compact structure, convenient foot operation, freeing hands for other manipulations.
2. Precisely machined valve core, stable signal output, sensitive operation response.
3. Good sealing performance, low internal leakage, effectively preventing external oil seepage.
4. High-strength spring components, reliable automatic reset.
5. Multiple structural versions to choose from: single circuit, dual circuit and breaker control type. Mounting dimensions consistent with original parts for direct replacement.
6. Suitable for long-time continuous operation under complex construction conditions.
5. Application Range
Universal pilot control component for crawler excavators.
- Single foot pedal valve: Usually used for single-action control
- Dual foot pedal valve: Used for two groups of independent hydraulic control
- Single pedal dual circuit valve: One pedal controls two oil circuits
- Hydraulic breaker valve: Dedicated foot valve to control hydraulic breaker
Compatible with most mainstream excavator brands equipped with hydraulic pilot control system.
6. Common Faults & Replacement Suggestion
Typical failures: Unresponsive action, pedal cannot return, internal leakage, external oil leakage, weak control force.
Clean pilot pipelines thoroughly before installation to avoid impurities entering the valve body. Check pilot pressure to meet standard requirements. Replace complete valve assembly if internal spool suffers serious abrasion.
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