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EM22-3001
EONMACH
8481201090
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Directional Control Valves for Snow Removal Truck (Model EM22-3001) are hydraulic flow control components designed for snow removal vehicle hydraulic systems. These valves regulate the direction, pressure, and distribution of hydraulic oil to operate snow plows, rotary brushes, and other attached working devices. Manufactured by EONMACH, the valve body is constructed from cast iron with precision-machined flow passages and integrated solenoid actuation with a handheld joystick controller. The assembly is suited for installation on municipal snow trucks, highway maintenance vehicles, and airport snow removal equipment where reliable hydraulic direction control is required during winter operations.
The valve assembly uses nitrile rubber seals rated for operating temperatures from -30°C to +60°C, allowing the system to function in sub-zero winter conditions. Hydraulic oil viscosity changes at low temperatures are managed through the valve's flow passage design, which maintains controllable operation when used with the manufacturer-recommended hydraulic oil grade for the ambient temperature range.
The directional spool design provides proportional control over hydraulic oil flow, enabling smooth adjustment of snow plow lift, lower, and angle functions as well as rotary brush speed. The joystick controller delivers step-less flow modulation, allowing the operator to match actuator speed to working conditions.
The valve body is made of cast iron with a corrosion-resistant powder coating. Spool surfaces are hardened and ground to maintain clearance tolerances. The sealing system uses nitrile rubber O-rings and backup rings to reduce external leakage when exposed to deicing salts and moisture.
The valve is configured with standard SAE hydraulic port sizes and is compatible with most snow removal truck hydraulic systems operating within the rated pressure range. The mounting flange pattern matches common industry installations, reducing adaptation work for retrofit projects.
The valve incorporates a built-in pressure relief function that limits system pressure to the rated maximum, protecting hydraulic components from damage caused by sudden pressure spikes during plow impact or overload conditions.
Parameter | Specification |
|---|---|
Model | EM22-3001 |
Brand | EONMACH |
HS Code | 8481201090 |
Valve Type | Directional Control Valve (solenoid operated with joystick) |
Body Material | Cast iron with powder coating |
Seal Material | Nitrile rubber (NBR) |
Operating Temperature Range | -30°C to +60°C |
Control Mode | Joystick / solenoid |
Application | Snow removal truck hydraulic systems |
Note: The original product page does not provide rated pressure, flow rate, port size, or weight specifications. Business buyers should contact EONMACH technical support for detailed dimensional drawings and performance curves to confirm compatibility with specific vehicle hydraulic systems.
The valve controls plow angle and brush rotation on city street and residential area snow trucks, where precise actuator movement helps avoid damage to road surfaces, curbs, and sidewalk infrastructure.
For highway and interstate maintenance vehicles, the valve provides the flow control needed to operate larger plows and high-capacity brushes under heavy snow load conditions, supporting consistent clearing speed.
The valve is used on airport snow removal fleets where uniform plow height and brush speed contribute to even runway clearing. Operators should verify that the valve's response characteristics meet the specific precision requirements of each airport's snow removal protocol.
The valve can be installed on snow removal equipment used in parking lots, factory yards, logistics centers, and other large open areas, adapting to varied terrain and snow accumulation depths.
The valve uses standard SAE port sizes and a common mounting flange pattern, which supports retrofit on many snow removal truck models. However, compatibility depends on the existing system's pressure rating, flow rate, and electrical control voltage. Professional installation and system calibration are recommended, and buyers should provide vehicle hydraulic specifications to EONMACH for a compatibility check.
Recommended maintenance includes: inspecting the valve body and port connections for external leaks at regular intervals; maintaining clean hydraulic oil within the manufacturer's specified viscosity grade for ambient temperatures; checking electrical connectors and the joystick controller for moisture ingress; and avoiding prolonged submersion in standing water or slush when the vehicle is parked.
The valve is compatible with standard mineral-based anti-wear hydraulic oils (ISO VG 32 or ISO VG 46) commonly used in snow removal equipment. For operating temperatures below -10°C, a lower-viscosity winter-grade hydraulic oil is recommended. Refer to the product manual for specific oil viscosity recommendations based on the expected operating temperature range.
