Electric stop valve J961Y-550(1) for SPL Paras power｜YOYIK

Electric stop valve J961Y-550(1) for SPL Paras power Power Plant｜YOYIK
Product Introduction

The J961Y-550(1) Electric Stop Valve is a ultra-high pressure electrically operated cutoff device developed for extreme power plant working conditions, integrating a precision-forged integral valve body and a heavy-duty multi-turn electric actuator. Compliant with PN55 pressure class (maximum working pressure ≤55.0MPa), it is made of high-grade chromium-molybdenum alloy steel (marked by model suffix Y), which provides outstanding high-temperature resistance, creep resistance and pressure-bearing performance, specially customized to meet the strict operational requirements of SPL Paras power Power Plant and other ultra-high pressure thermal power generation facilities. Its streamlined flow passage design reduces pressure loss to the greatest extent while ensuring reliable and rapid isolation of high-pressure media in critical pipeline systems.

This electric stop valve is mainly used in the ultra-high pressure pipeline networks of SPL Paras power Power Plant, capable of effectively controlling and isolating ultra-high temperature and high-pressure media such as supercritical steam, ultra-high pressure boiler feedwater and high-temperature high-pressure oil. Operating stably at a maximum working temperature of 590℃ (matching PN55 pressure class), it is widely applied in the main boiler systems, turbine ultra-high pressure circuits and core instrument control pipelines of power plants. It provides a solid guarantee for the safe, stable and efficient operation of power generation equipment by realizing leak-tight on-off control and adapting to the harsh ultra-high pressure and high-temperature working environment of the power plant.

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 construction (model suffix Y) boasts excellent high-temperature resistance, creep resistance and impact toughness, which can adapt to the ultra-high pressure and high-temperature pipeline environment of SPL Paras power Power Plant and ensure long-term stable and reliable operation without deformation or leakage.

- Compliant with PN55 pressure class (≤55.0MPa) and manufactured in strict accordance with GBT 12235, API 600 and ASME B16.34 standards, the valve undergoes strict hydrostatic testing (test pressure 82.5MPa) and pneumatic testing to completely eliminate leakage risks under rated and extreme working pressures, meeting the highest safety standards of power plants.

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

- Adopts a precision-ground metal-to-metal hard sealing structure, combined with special surface hardening treatment technology, achieving excellent sealing performance even under ultra-high temperature and high pressure, greatly reducing maintenance frequency and operation costs.

- Integral forged valve body structure (without welding seams) eliminates internal defects such as pores, cracks and inclusions, enhances the overall structural strength and pressure-bearing capacity, and can adapt to the frequent pressure fluctuation scenarios in the ultra-high pressure pipelines of SPL Paras power Power Plant.

Applications

- Boiler main steam pipeline system of SPL Paras power Power Plant

- Turbine ultra-high pressure feedwater cutoff pipeline in thermal power plants

- Ultra-high pressure superheated steam pipeline of SPL Paras power Power Plant

- Power plant boiler reheater and superheater pipeline isolation system

- Ultra-high pressure instrument control loop of power generation facilities

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

- Ultra-high pressure condensate water recycling pipeline of 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.

Our company can provide replacement parts for various power facilities, as follows:
#DF-Electric stop valve J961Y-550（1）SPL-DF
Fluoro Rubber O-Ring OR0311308
Servo valve SH736001A0727
gate Z561Y-600LB
stainless steel globe throttle check valve (welded) LJC50-1.6P
Electric stop valve J961Y-P22200V
Oil supply pump HSNH80-27
O-ring GB3452.1 122*5.3-YI7445
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Fluorine O-ring DH.00.050
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High pressure automatic drain 505
duplex gear oil pump ACMAR019901AC0100010000A0000CD0B 26501-RAN
sealing ring HB4-56J8-43
Seal kit Z960Y-20
solenoid valve 3D01A012
Circulation pump F3-V10-IS6S-IC20
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Large end cap HPT300-340-04-08
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Circulating pump SDTLB
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pressure hose SMS-20-1219mm-B
Skeleton oil seal TCM589332.00G
pressure hose S110-AC-FC-0150
AST trip solenoid valve coil M16-110A-26W-DN
servo valve H19JOGM5VBH
Fluorine rubber O-ring HY-SO-0012-V
RUBBER BLADDER FOR ACCMULATOR A-25/31.5-L-EHS
solenoid valve DG3VP-3-102A-VM-UP-10
vacuum pump rear end cap P-1745
Electric stop valve J961Y-550（1）SPL

solenoid valve DSG-03-3C2-A240-N1
globe valve J965Y-32 DN20 JB/T308
servo valve 078N210E
Low re-inlet plug valve SD61H-P3547 WCB
valve E-ME-A-05F20
Guide vane sleeve HPT300-340-04-06
Heating network circulating water pump hydraulic coupler servo valve 43.8276.80
Check valve H61H-300LB
Clean water pump SLW50-250(Ⅰ)B
Dermal vesicle NXQA-40/20-L-EH
Angle joint EW-L06-SS
pressure hose SMS-15/N1/4-305mm-B
water circulation pump B34-112HBM-40-25-160-T
Butterfly valve D41W-10C
Solenoid valve 0508.1307T0301AW035
PNE CYL SUPHNCDIAV040
bladder NXQ A-40/31.5-L
oil pump 80LY-45-3
Pneumatic double slide valve D71F-10C
solenoid valve C23BA4004011B61
sealing ring HB4-56J8-77
Glue injection gun KFG-140-10
Stop valve J65Y-2500H SA-182F12
The electromagnetic valve HQ16.53Z
servo valve MOOG-G761-3033B
GEAR OIL PUMP RCB-300
The electromagnetic valve HQ16.301Z
Solenoid valve HD4WE6E60/SG24N9Z5L/N
solenoid valve 4WE10D-20/OFAG220NZ4V
oil pump 5MCY-14-1B
Oil unloading pump 3G70*2-46W
Safety valve A48-900LB
Solenoid valve FRD.WJA3.016-220VAC
O-ring seal HY-SO-0118-V
HP ball valve W-BKH-20S-16-11251
EH HP accumulator bladder GXNQ200
O type Seal ring HN 7445-75.5x3.55
Electric stop valve J961Y-550（1）SPL

DFYLCTY-2026-1-29-A