Electric stop valve J961Y-600LB for Suralaya power｜YOYIK

Electric stop valve J961Y-600LB for Suralaya power Power Plant｜YOYIK
Product Introduction

The J961Y-600LB Electric Stop Valve is a high-performance super-high pressure electrically operated cutoff device designed for harsh operating conditions in large thermal power plants, integrating a precision forged valve body and an intelligent heavy-duty multi-turn electric actuator. Compliant with ASME 600LB pressure class (equivalent to PN100MPa, maximum working pressure ≤100.0MPa as per ASME B16.34 standard), it is made of high-grade chromium-molybdenum alloy steel (marked by model suffix Y) with Stellite cobalt-based hard alloy surfacing on the sealing surface, which provides excellent high-temperature resistance, creep resistance and ultra-high pressure-bearing capacity, specially customized to meet the strict operational requirements of Suralaya power Power Plant and other super-high pressure thermal power generation facilities. Its optimized straight-through flow passage design minimizes pressure loss and flow resistance, while ensuring rapid, leak-tight isolation of super-high pressure media in critical pipeline systemssuperscript:2superscript:3>.

This electric stop valve is mainly applied in the super-high pressure pipeline networks of Suralaya power Power Plant, capable of effectively controlling and isolating super-high temperature and ultra-high pressure media such as supercritical steam, ultra-supercritical boiler feedwater and high-temperature high-pressure lubricating oil. Operating stably at a maximum working temperature of 600℃ (matching ASME 600LB pressure class, adapting to the temperature-pressure system benchmark of 454℃ for American standard valves), it is widely used in the main boiler systems, turbine super-high pressure circuits and core instrument control pipelines of power plants. It provides a reliable guarantee for the safe, stable and efficient operation of power generation equipment by achieving precise leak-tight on-off control and adapting to the extreme super-high pressure and high-temperature working environment of the power plant, with a safe operation life exceeding 8000 hours in supercritical thermal power projects.

Company Profile

YOYIK is a leading manufacturer of industrial valves and power plant equipment in the global energy industry, focusing on the design, R&D and production of high-demand electric stop valves and other power plant spare parts. It has a complete quality management system and a global service network, providing customized solutions for power, chemical and steel industries.

Product Features & Operation Points

- High-grade chromium-molybdenum alloy steel valve body (model suffix Y) with Stellite cobalt-based hard alloy surfacing on the sealing surface, featuring excellent high-temperature resistance, creep resistance and impact toughness, which can fully adapt to the super-high pressure and high-temperature pipeline environment of Suralaya power Power Plant, ensuring long-term stable operation without deformation, corrosion or leakage.

- Compliant with ASME 600LB pressure class (equivalent to PN100MPa, ≤100.0MPa) and manufactured in strict accordance with GBT 12235, API 600 and ASME B16.34 standards, the valve undergoes rigorous hydrostatic testing (test pressure 153.2bar) and pneumatic testing (low-pressure seat test 6bar) to completely eliminate leakage risks under rated and extreme working pressures, meeting the strictest safety requirements of power plants.

- Equipped with an intelligent heavy-duty multi-turn electric actuator (DZW series compatible), it supports remote and local dual-control modes, with real-time position feedback, overload protection, fault alarm and emergency cutoff functions, reducing manual operation intensity and improving the accuracy, safety and efficiency of pipeline control in power plant systems.

- Adopts a precision-ground metal-to-metal hard sealing structure, combined with advanced surface nitriding hardening treatment on the valve stem, achieving excellent sealing performance even under super-high temperature and ultra-high pressure, greatly reducing maintenance frequency and operation and maintenance costs, and enabling online填料 replacement without shutting down the system.

- Integral forged valve body structure (without any welding seams) eliminates internal defects such as pores, cracks and inclusions, enhances the overall structural strength, pressure-bearing capacity and impact resistance, and can adapt to the frequent pressure fluctuation scenarios in the super-high pressure pipelines of Suralaya power Power Plant, suitable for 25MW-1000MW unit pipeline systems.

Applications

- Boiler main steam pipeline system of Suralaya power Power Plant

- Turbine super-high pressure feedwater cutoff pipeline in Suralaya power Power Plant

- Super-high pressure superheated steam pipeline of Suralaya power Power Plant

- Power plant boiler reheater and superheater high-pressure pipeline isolation system

- Super-high pressure instrument control loop of Suralaya power generation facilities

- High-temperature high-pressure lubricating oil transportation pipeline of power plant auxiliary systems

- Boiler segmental hydrostatic test isolation pipeline of ultra-supercritical thermal power plants

End Statement

Specifications and configurations can be customized according to specific project requirements. Contact our technical team for detailed engineering support and performance data.


We have abundant inventory of spare parts required by the factory, including:
#DF-Electric stop valve J961Y-600LB-DF
Hot gas bypass valve JL0150828
Ball valve Q11F-16C
solenoid valve J-220VAC-DN10-D/20B/2A
Electromagnetic directional valve 0508.3054T0101.AW007
Fluorine rubber O-ring φ32.7*3.7
O-ring DG600-240-07-01(10)
pressure relief valve YSF8-55/80-TH
Hydrogen emission main valve PTFE valve core WJ61-F
Oil seal FRD.WJA9.033ZF
Servo valve M4-20(15)57-80/40-10-S182
Sealing element 201296-1CH-HBSE280-250
Stop valve 25FJ-16PA2
EH oil pump coupling cushion ROTEX φ42
GV2 quick-close solenoid valve 13YV
Servo valve MOOGT761-004
globe valve J965Y-320 DN32 JB/T308
plug for MOOG valve 49054F014S002S
Floating ball valve FQF-DN80
Block valve SD61H-160V SA-182 F91
Sealing ring HB4-56J1-24
Throttle valve L61Y-600LB
turning solenoid valve 23D-25
solenoid valve DG4V-3-2A-MU-D6-60
Moog servo valve G631-3800B
Solenoid directional valve 4WE6U61B/CW220RN9Z5L
solenoid valve F3DG2S-062A-50DFZK
Solenoid valve 3WE6A61B/CW220RN9Z5L
gear pump ACNAR05ACA0010000000000A
turning solenoid valve 23D-63B
Thrust disc FAIB56-A2-102779
Coupling key FAID67-01-01
GEARBOX BLY33-35
Internal hexagonal screw M6×12
One-way valve 126*48mm
Unloading valve DB20-1-50/31.5U/N
Instrument valve J21H-100P
Needle Valve J21W 16PB
Electric stop valve J961Y-600LB

globe throttle check valve KJC25-4.0P
MANIFOLD BLOCK 0508.919T0401.AW001
variable piston pump MOOG0514 7005 37
Manual directional valve FRD.WJA4.008
Vapor-liquid two-phase flow DN150/50 PN4.0
Check valve H44W-10P
sealing ring HB4-56JB-61
Electric stop valve J961Y-P54.5150I
Servo valve FRD.MYTBXF.129A
stator cooling water pump mechanical seal A10845
Electric gate valve ZD960Y-P54100V
The electromagnetic valve 0508.835T0101.AW001
Electric stop valve J961H-1500SPL
Sealing ring HB4-58-63-4AR
EH oil pump outlet hose DF-16G2AT-HMP(DN25)
Joint CSHM 1/4NPT
Cooling fan YB3-225M-4
Sealing ring HB4-56J1-18
One-way valve 120.4/120.5HY-FXF10.63V
sealing ring OR-134-V
Block valve SD61H-P54.5170V
Proportional valve 4WRA6W1-30-23/G24N9K4/V
O-ring seal HY-SO-0084-V
check washer DIN-5406-1993
Screw pump 3GR42X4A
sealing ring HY-SO-0133-V
SOLENOID VAE 4WE6EL6X/EG24NZ5L/V
Rotating shell CO46-02-01
Fluoro Rubber O-Ring OR0030034
Slide Gate Valve Spare Parts 200x200 PN1.0
battery monitoring module BATM30B-2V
Stop check valve KLJC50-1.6P
Check valve H61Y-600CL
valve seal kit MG.00.11.19.01
PTFE Lined Butterfly Valve 100DSF4PB3-16-100
Electric gate valve Z941H-64
servo valve U270/5Z04
Electric stop valve J961Y-600LB

DFYLCTY-2026-1-29-A