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China factory - Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

  • China ,Fujian
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China Moog Servo Valve Electro-Hydraulic Servo Valve with G 1/2 Inlet Port Size for
China Moog Servo Valve Electro-Hydraulic Servo Valve with G 1/2 Inlet Port Size for

  1. China Moog Servo Valve Electro-Hydraulic Servo Valve with G 1/2 Inlet Port Size for
  2. China Moog Servo Valve Electro-Hydraulic Servo Valve with G 1/2 Inlet Port Size for

Moog Servo Valve Electro-Hydraulic Servo Valve with G 1/2 Inlet Port Size for

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  2. Price： 2
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Certifiion ISO
Payment Terms MoneyGram,Western Union,T/T,D/P,D/A,L/C
Supply Ability 30
Delivery Time 2 weeks
Packaging Details wooden box
Appliion Maritime
Structure variable piston pump
Inlet Port Size G 1/2
Usage Oil
Power Hydraulic
Color Deep Gray Or Customized
Certifisaarion ISO9001
Pressure High Pressure
Maximum Pressure 280 bar
Drive Mode 6-250m3
Seal Nitrile rubber or fluoro rubber
Displacement 10-140 cm3/rev
Brand Name MOOG
Model Number D634-341C D634-501A D661-4444C D661-4651 D661-4652 D661-4636 072-1202-10 072-1201-10 D662-4210 D662-4013
Place of Origin Germany

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  1. Product Details
  2. Company Details

Product Specification

Certifiion ISO Payment Terms MoneyGram,Western Union,T/T,D/P,D/A,L/C
Supply Ability 30 Delivery Time 2 weeks
Packaging Details wooden box Appliion Maritime
Structure variable piston pump Inlet Port Size G 1/2
Usage Oil Power Hydraulic
Color Deep Gray Or Customized Certifisaarion ISO9001
Pressure High Pressure Maximum Pressure 280 bar
Drive Mode 6-250m3 Seal Nitrile rubber or fluoro rubber
Displacement 10-140 cm3/rev Brand Name MOOG
Model Number D634-341C D634-501A D661-4444C D661-4651 D661-4652 D661-4636 072-1202-10 072-1201-10 D662-4210 D662-4013 Place of Origin Germany
High Light G 1/2 Inlet Port Size Moog Servo Valve ，Maritime Appliion Electro-Hydraulic Servo Valve ，Variable Piston Pump Structure Proportional Flow Control Valve
MOOG Electro-Hydraulic Servo Valve
Product Models

D634-341C, D634-501A, D661-4444C, D661-4651, D661-4652, D661-4636, 072-1202-10, 072-1201-10, D662-4210, D662-4013

Product Description

MOOG electro-hydraulic servo valve for precise hydraulic flow and pressure control in industrial appliions.

Technical Specifiions
Parameter Value
Rated Current 1A
Voltage 24V/220V
Power 0.1 kW
Brand MOOG
Place of Origin Germany
Appliion LED touch control
Material PVC, Steel, Copper
Rated Frequency 50 Hz
Type Servo proportional valve
Control Electro hydraulic/Proportional
Compatible Models
Model Model
Original MOOG D684E4715 Original MOOG A076-344A
Original MOOG D684Z4715B Original MOOG A076-453
Original MOOG D684Z47245 Original MOOG A076-500
Original MOOG D684Z4724B Original MOOG A076-508
Original MOOG D684Z4733F Original MOOG A076-508A
Original MOOG D684Z4815 Original MOOG A076-509
Original MOOG D684Z4857G Original MOOG A076-509A
Original MOOG D684Z4862 Original MOOG A076-535
Product Image
MOOG Electro-Hydraulic Servo Valve
Frequently Asked Questions
What are the key installation requirements?

Proper installation is critical for performance and longevity:

  • Filtration: Install a precision filter with a rating of 5 microns or less upstream of the servo valve. The hydraulic fluid cleanliness should be maintained at a maximum ISO DIS 4406 Code 16/13, with Code 14/11 recommended.
  • System Flushing: Before installing the servo valve, the entire hydraulic system must be thoroughly flushed to remove contaminants. Use a flushing manifold and circulate fluid under conditions simulating normal operation.
  • Mounting: The valve can be mounted in any orientation, ensuring port alignments match the manifold. The mounting surface should be clean, smooth, and flat. Use the specified screws and torque them to 96 inch-pounds.
  • Connections: Use O-ring seal connections (e.g., SAE J1926) and avoid welded fittings. Prefer crimped or 24-degree cone type connections.
What are common faults and how can I troubleshoot them?

Common faults can be egorized as follows:

  • Electrical Faults: Include power supply failure, cable damage, or poor contact. Check the supply voltage, cables, and connectors.
  • Mechanical Failures: Such as a stuck valve spool, damaged springs, or worn seals. Regular inspection, cleaning, lubriion, and part replacement are necessary.
  • Hydraulic Faults: Including oil contamination, low oil level, or oil leaks. Regularly replace and filter the oil, check oil levels, and repair leaks.
  • Valve Oscillation: Unstable operation may be caused by issues with the servo valve's resolution, wear of the valve port, or incorrect control system parameters.
Troubleshooting Chart
Potential Trouble Probable Cause
Servovalve does not follow input command 1. Open coil or coil leads.
2. Clogged inlet filter.
Poor response 1. Clogged inlet orifices or nozzles.
2. Partially clogged filter.
3. "Sticky" spool.
No response to electrical signal Shorted coil assembly.
Low flow gain 1. Incorrect null adjustment.
2. Partially plugged orifice or filter.
What does daily maintenance involve?

Routine maintenance focuses on preventing common faults:

  • Hydraulic Fluid: Maintain the recommended cleanliness level. Change the oil regularly (e.g., every six months) and keep the oil temperature within the 40°C to 50°C range.
  • Filters: Monitor the pressure drop across filters and replace elements periodically or when the pressure drop becomes excessive.
  • General Inspection: Regularly check for oil leaks, inspect the valve for unusual noises or vibrations, and ensure electrical connections are secure.
  • Sealed Tank: The hydraulic reservoir should be sealed and equipped with an air breather and a magnetic filter.
What is "Mechanical Null Adjustment"?

The mechanical null adjustment allows you to calibrate the valve's flow null (the spool position where no flow passes to the actuator when the input signal is zero) independently of other system parameters. This is done by rotating an eccentric bushing retainer pin with an Allen wrench, which can adjust the flow null by at least ±20%. This adjustment should be performed if system components are drifting or stuck in a hardover position.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter

  • Total Annual:

    1 million-10 millon

  • Employee Number:

    >50

  • Ecer Certification：

    Verified Supplier

Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...

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  • Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
  • Nan'an, Fujian Province, China
  • https://www.electrichydpump.com/

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