J761-003A Steam Turbine Industrial Two Stage Electro Hydraulic Amplifier Servo Valve

• Temperature: Ordinary Temperature
• Certification: ISO9001
• Media: Oil
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: J761-003A
• Standard: Standard
• Connection Mode: Electrical Plug
• Power: Hydraulic
• Material: Stainless Steel
• Type: Self-Operated
• Industry: Power Plants
• Condition: Brand New
• Valve Parts: Solenoid Valve Spool
• Usuage: Steam Turbine
• System: Deh System
• Valve Type: Screw-in Cartridge Valves
• Servo Valve: J761-003
• Hydraulic Servo Valve: J761-004A
• Transport Package: Cartons
• Specification: J761-003A
• Trademark: Customized
• Origin: China
• Production Capacity: 10000 Pieces/Year
• Package Size: 30.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 5.000kg

Product Description

 

Product Description

The J761-003A Servo Valve is specifically designed for the EH oil system of steam turbines to supply oil to the actuator of the safety regulation system, ensuring its normal operation. Due to the high pressure of the EH oil, small clearances in the hydraulic moving parts, and a servo valve clearance of 5 to 10 micrometers, it is essential to ensure that the oil particle size meets the specified SAE 2 or NAS 5 level before proceeding to the next stage of the debugging process.

Structure:
The J761-003A flow control servovalves are designed to provide high-performance control for electrohydraulic systems. The valve consists of a closed center, four-way sliding spool as its output stage, ensuring precise control and efficient operation. The pilot stage features a symmetrical double-nozzle and flapper, driven by a double air gap, dry torque motor. To provide accurate spool position feedback, a cantilever spring is used in the mechanical feedback system.

The J761-003A Servo Valve stands out with its simple and rugged design, ensuring dependable and long-lasting performance. The design incorporates a carbide-tipped feedback wire, controlled by a carbide ball at its end, which is a mandatory requirement to ensure high accuracy, reliable operation, and extended service life.

Product Parameters

 

Technical Specification of Servo Valve for Reference
Valve Type	SM4 series Electro hydraulic servo valve
Connection	Aviation plug
Material	Stainless steel
Maximum Rated Flow	76l/min
Maximum Total Null Leakage	2l/min
Maximum Pilot Flow	0.35l/min
Maximum Supply Pressure	210bar
Minimum Supply Pressure	14bar
Proof Pressure	150% At Supply Port
Burst Pressure Return Port Open	250%
Maximum Operating Temperature	135°C
Hysteresis Around Null	≤3%
Symmetry Error	<10%
Linearity Error	<10%
Threshold	≤0.5%
Condition	Brand-New
After-service	Cleaning and testing

 

Detailed Photos

Product Features:

- High performance, sensitive response, and fast response enable it to quickly adjust the flow and pressure of the hydraulic system in the control system to meet precise control requirements.

- Strong anti-interference ability ensures the stability and reliability of the system.

- It can provide stable hydraulic transmission, avoid severe flow fluctuations and hydraulic impacts, thereby ensuring the stability and reliability of the system.

- Good dynamic response, able to quickly respond to changes in control signals, and adjust the working status of the hydraulic system in a short period of time.

Applications of Servo Valve:

1. Electrohydraulic position control system: The servo valve J761-003 can control the hydraulic actuator based on the input position signal, achieving accurate position control. Commonly used in fields such as mechanical processing, automated production lines, and industrial robots.

2. Electrohydraulic speed and acceleration control system: Servo valve J761-003 can accurately control the speed and acceleration of hydraulic actuators based on the input speed or acceleration signal. Commonly used in automated production lines, mechanical processing equipment, etc.

3. Electrohydraulic force control system: Servo valve J761-003 can apply precise force to hydraulic actuators, such as injection molding machines, pressure testing equipment, etc. based on the input force signal.

4. Servo vibration generator: Usually used to simulate vibration environments for vibration testing and research."

 

Related Products

Yoyik offers different types of Hydraulic solenoid valves for industrial users:

Servo valve pad HU27648-AA
ID FAN servo valve seals TY9112ABC
Servo valve ZD.01.013
Servo valve MOOG 761K4112
IGV SERVO VALVE ELECTRO HYDRAULIC FLOW CONTROL G771K202
Moog valve 0508.2303T0102.AW009
Servo valve SM4-20(15)-80/40-10-S182
Servo valve J761-003
Servo valve G761-3005
Servo valve 0508.902T0102.AW018
servo valve SM4-20(15)57-80/40-10-H607
DDV Valve for Turbine HPCV TYV4-06
servo valve SM4-20
Servo valve SM4-40(40)151-80/40-10-S205
servo valve 072-120-10
 

Packaging & Shipping

          Standard & solid packaging ensures your goods safety.

          Various professional packages at your choice


         Multiple choice of reliable and cost-effective shipping methods available.

 

Company Profile

- ABOUT US -

Dongfang Yoyik Engineering Co., Ltd is located in Deyang, Sichuan, China's heavy equipment base, was founded in 2004. The company is a professional power plant spare parts manufacturer and supplier. Our products are applicable for many thermal power plants, hydropower plants, metallurgic industrial power plant, cement plant power house, aluminum plant power house, and coal mill power plants.

From advanced precision electric elements and components to highly-customized metal items, you can find all the needed for a power plant from Yoyik.


Yoyik is the exclusive agent of W.M. Nugent CO Inc for selling Nugent filter elements and filtration system products in China. The company also has great advantages in of many hydraulic products, including pumps, valves, sealing materials, etc. the brands include Eaton, Vickers, Moog, star, copaltite, temp-tite, 707, etc.

 

Our Advantages

 

- TECHNICAL PATENTS -

 

- OUR ADVANTAGE -

- COOPERATIVE INDUSTRIES -

Yoyik offers wide range of spare parts for customers in different industries:
 

FAQ

- ORDER NOTES -

√ Model Selection
Before purchasing, please ensure that the model specifications you provide are complete or that the drawings have been drawn so that you can provide timely and accurate quotations.

√ Quality Assurance
We promise to provide high-quality products and after-sales service. If there are any quality issues, please contact us promptly.

√ Secure Transactions
We sell on MIC, provide a secure and reliable trading environment, and accept multiple payment methods to facilitate your purchase.

 

- FAQ -

- Are you trading company or manufacturer?
We are factory located in Deyang, China.

- How long is your delivery time?
Generally it is 2-5 days if the goods are in stock. Or it is 7-21 days if the goods are not in stock, it is according to quantity.

- Do you provide samples? Is it free or extra?
Sorry we do not offer samples.

- What price terms do you accept?
Our company can accept all trading manners, eg. EXW, FOB, CIF etc

- What payment terms do you accept?
We accept T/T.