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Turbine DDV Servo Valve D634-319C for Power Plant Application – Central Java Power

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brand: YOYIK

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Unit Price: Negotiable
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Delivery: After payment in 3 days Ship out
Location: Global Asia China
Available: Long-term effectiveness
Last update: 2026-01-13 11:42
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Detailed description
Turbine DDV Servo Valve D634-319C for Power Plant Application – Central Java Power

Product Introduction

The Turbine DDV Servo Valve D634-319C is a high-precision hydraulic control core component tailored for Central Java Power plant's coal-fired unit turbine systems. It adopts direct drive valve (DDV) technology, specifically engineered to regulate the flow and pressure of hydraulic oil in turbine governing mechanisms with ultra-high precision. Coordinated with the plant's coal handling system (linked to load cell weight data), it converts electrical control signals into precise hydraulic actions to adjust turbine valve openings, realizing stepless speed regulation and load control, thus ensuring stable and efficient operation of the power plant's thermal power units.

Product Features

  • Rated working pressure 31. 5MPa, flow capacity 60L/min, compatible with ISO VG 46 anti-wear hydraulic oil, working temperature range -20℃~+100℃
  • Direct drive electromagnetic actuator with built-in LVDT feedback sensor, control accuracy ±0. 1% FS, response time (<30ms) for rapid regulation
  • Cast steel valve body with hardened stainless steel spool, PTFE sealing elements, IP65 protection grade, resistant to industrial dust and vibration
  • Supports 24VDC control voltage, compatible with power plant DCS and turbine control systems (TCS), with self-diagnosis and fault alarm functions

Applications

  • Precise governing control of steam turbines in Central Java Power plant's coal-fired units
  • Load adjustment of turbines based on coal supply data from load cells, optimizing boiler-turbine coordination
  • Hydraulic regulation of turbine steam valves, ensuring stable speed and power output of generator units
The above is for reference only. Please contact me via email for specific details.

Since 1990, YOYIK has been engaged in the manufacture and supply of industrial spare parts, accumulating rich industry experience and strong technical strength. The company not only produces various types of generator set accessories, but also provides customers with professional technical support and customized services. In particular, in the technical transformation and overhaul projects of thermal power plants, hydropower stations and metallurgical enterprises, YOYIK's solutions have been well received. With its unremitting pursuit of quality and a complete after-sales service network, YOYIK has become a trusted partner of many companies.

We can provide a variety of spare parts for power plants, as follows:

#DF-Turbine DDV Servo Valve D634-319C-DF

accumulator bladder ZD. 07. 005

cover plate CVCS-32-A-B29-W-10

pressure hose SMS-12/N1/4-1219mm-B

Pressure regulating valve DBDS20P10/2. 5

pressure relief valve YSF8-55/25-KJ

pressure hose S110-AC-AL-0150

servo valve CCH01. 320Z

EJECTION OIL SOLENOID VALVE MFZ6-90YC

relief valve DB10A-5X/31. 5

oil supply valve BY-80

Throttle valve L61Y-P55150P

Fluorine rubber O-ring φ26*φ22*2. 4

electromagnetic valve MFZ2-3C

sealing ring HB4-56J8-17

Stop check valve KLJC50-1. 6P

Solenoid valve coil SA-02-124515\DC220V 31W

gate Z60H-900LB

Solenoid valve 0508. 904T0301. AW027

Two-position three-way solenoid valve 57D-16-611-JA 24V

GEAR OIL PUMP RCB-300

pressure hose SMS-10-305-B

Safety valve A48Y-40

cover plate CVCS-32-D3-B29-10

Chilled water line valve actuator NV24-MFT

gasket 03506-350/357/479 part no. :92

accumulator bladder SB330-50A1/114A9-330A 50L

High main oil engine seal ring A1. 1100A-MFQ

Hydraulic pump GPA2-16-E-20-6. 3

EH oil main pump PVH074R01AA10A250000002001AB010A

Impeller lock nut B2207-82-24A

solenoid valve 4WE6D6X/OFEG220N9K4/V

Solenoid proportional directional valve 4WRAE10E60-2xG24K31/A1V

EH oil Circulating pump mechanical seal BB-B40YC

regulating valve 2FRM6K2-1X/16QRV

Reheat cold section plug valve SD61H-P3560

Stop valve J61Y-2100LB

Turbine DDV Servo Valve D634-319C

sealing ring HB4-56J8-132

Electric shut-off valve body J965Y-320

Pump casing wear ring PCS1002002380010-01/502. 03

servo valve ZD. 01. 003

pressure hose SMS-12/20-1524mm-B

differential pressure Regulator KSO25SZDA64Q

Balance drum HPT300-340-03-05

screw pump GR55SMT380LSNRF2

Recirculating oil pump Drive screw HSNH280-43NZ

O type Seal ring HN 7445-250x7. 0

throttle valve DRV30-1-10B

Hydraulic motor unloading valve XH24 WJHX. 9330A

solenoid valve D12T11G0P

pressure hose SMS-15-610mm-C

makeup water solenoid valve K25FJ-1. 6PA2

O ring HY. SO. 0083. V

Accumulator bladder NXQ-AB-80/31. 5-F-EH

Coupling between motor and booster pump TDH6-370-00T97

valve PP3-N03BG

The electromagnetic valve 4WE10D-20/AG220N74

EH main oil pump repair PVH098R01AJ30A250000002001AB010

Stop valve J61Y-320 SA-105

Power plant shut-off valves WJ10F3. 2P

BLADDER NXQ-A-16-20-F/Y

oil pump ACF090N4IRB0

pressure relief valve YSF12-35/50-KJ

Shut-off valve EATON FCV6-16V-S-O-NV ER10707150010

Hydraulic station accumulator NXQ1-F10/20-H

Gear reducer MO1225OBGCC15A

Elbow YZD25LG-7-59

GEAR PUMP PFG-142-D

Single row cylindrical roller bearings NU2368

solenoid valve A14LX3AB8A48

servo valve HY-SFF8. 01

Accumulator NXQ-A-10/10-FY

solenoid valve plug DG4V-3-2A-VM

Turbine DDV Servo Valve D634-319C

DFYLCTY-2026-1-13-A

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