D631-271c Proportional Analog Signals Direct-Operated Electro-Hydraulic Servo Valve for turbines

• Customization: Available
• Temperature: Ordinary Temperature
• Certification: ISO9001
• Model NO.: D631-271C
• Media: Oil
• 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: Electro Hydraulic Servo Valve
• Flow Control Valve: D631-271c
• Direct-Operated Servo Valves: D633-7392
• Servo Valve: D661-4642
• Servo Valve Amplifier: D661-K4893
• Servo Controller: D664-4010 and D061-9312
• Hydraulic Servo Proportional Valve: D664-4798-L05habw6nex2-G
• Servovalve Hydraulic: D682-4241
• Servo Valoves for Pinch Roll: D765-1081-4
• Servo Flow Control Valve: D633-7115
• Transport Package: Cartons
• Specification: D634-319C
• 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

D631 series electro-hydraulic servo valve is an electro-hydraulic servo valve that uses a permanent magnet moving iron torque motor.

Structure:
Its torque motor consists of components such as a guide magnet (magnetic steel), a guide magnet (yoke iron), an armature (and two control coils), a guide rod shaft, and an elastic sleeve seat. The armature is supported by an elastic sleeve seat in the middle of two guide magnets through a guide rod, which can rotate slightly around the guide rod and form four working air gaps with the guide magnet. The control coil is located above the armature.

The torque motor of D631 electro-hydraulic servo valve has a large output torque per unit volume, so its size is small and its inertia is small. However, due to its complex structure, the manufacturing cost is high.

Product Parameters

 

Technical Specification of Servo Valve for Reference
Valve Type	Electro hydraulic servo valve
Connection	Aviation plug
Material	Stainless steel
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:

1. High precision control: Servo valve D631-271C can provide precise flow and pressure control, suitable for high-precision control requirements of hydraulic systems in energy systems. It can adjust flow and pressure in real-time according to requirements, ensuring the stability and efficiency of the system.

2. High reliability: The servo valve D631-271C adopts high-quality materials and precision manufacturing technology, which has excellent reliability. In the field of energy, the reliability of systems is crucial as failures can lead to production interruptions, safety hazards, or environmental issues. The high reliability of servo valves helps to ensure the safe operation and continuous supply of energy systems.

Applications of Servo Valve:

1. Power station: The D631 electro-hydraulic servo valve can achieve precise control of flow, pressure, and speed in the steam turbine control system of the power plant.

2. Oil and gas extraction and transportation: In the process of oil and natural gas extraction, the D631 electro-hydraulic servo valve can be used to control hydraulic systems, such as controlling the hydraulic operation of drilling, lifting equipment, and transportation pipelines in oil wells.

3. Compressor control: Compressors are widely used in the energy field to compress gas or steam. D631 electro-hydraulic servo valves can be used to control the hydraulic system of compressors, achieving precise control of parameters such as pressure, flow rate, and temperature.

4. Liquid nitrogen and liquid oxygen systems: In the aerospace industry, liquid nitrogen and liquid oxygen systems are used to provide cooling and propellant. The D631 electro-hydraulic servo valve can be used to control hydraulic operations in these systems, ensuring their stable operation.

 

Related Products

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

servo valve 0508 886T0102 AW018
valve D664Z4723
servo valve 072K4160
servo valve 761K4217
Flow Control Valve J761-003A
Servo valve G772 K240A
VALVE 072-1202-10
Servo valve D633-7115 Type A08KA4F0VBY
servo valve D633-7115
servo valve 0508.2247T0102.AW019
servo valve 761K4177
Servo Valve 760N1194B\DN12
Valve D664Z4723
Servo valve G761-3025
Servo valve D683-4001 Type P03BYUF6NSG2-B
Servo Valve MOOG 72-1202-10
Servo valve G771 K202A
servo valve D683-4001
 

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.