Electric stop valve J961Y-900LB for Deenbandhu Chhotu Ram

Electric stop valve J961Y-900LB for Deenbandhu Chhotu Ram power Power Plant｜YOYIK
Product Introduction

The J961Y-900LB Electric Stop Valve is a high-performance ultra-high pressure electrically operated cutoff device tailored for large-scale thermal power plant harsh working conditions, integrating a precision integral-forged valve body and a heavy-duty intelligent multi-turn electric actuator. Compliant with ASME 900LB pressure class (equivalent to PN150MPa, maximum working pressure ≤15.0MPa based on 454℃ benchmark temperature as per ANSI 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 delivers exceptional high-temperature resistance, creep resistance and ultra-high pressure-bearing capacity, specially customized to meet the strict operational requirements of Deenbandhu Chhotu Ram power Power Plant and other ultra-high pressure thermal power generation facilities. Its optimized streamlined flow passage design minimizes pressure loss and flow resistance, while ensuring rapid and leak-tight isolation of ultra-high pressure media in critical pipeline systems, fully complying with international power plant valve manufacturing standards and industry specificationssuperscript:2superscript:4>.

This electric stop valve is mainly applied in the ultra-high pressure pipeline networks of Deenbandhu Chhotu Ram power Power Plant, capable of effectively controlling and isolating ultra-high temperature and high-pressure media such as superheated steam, high-pressure boiler feedwater and high-temperature industrial oil. Operating stably at a maximum working temperature of 570℃ (matching ASME 900LB 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 ultra-high pressure circuits and core instrument control pipelines of power plants, serving as a key piece of equipment to ensure the safe and stable operation of power generation units. It provides a reliable guarantee for the safe, stable and efficient operation of power generation equipment by achieving precise on-off control and adapting to the extreme ultra-high pressure and high-temperature working environment of the power plant, and can withstand 1.1 times the rated working pressure without leakage in the closed statesuperscript:1superscript:2>.

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 ultra-high pressure and high-temperature pipeline environment of Deenbandhu Chhotu Ram power Power Plant, ensuring long-term stable operation without deformation, corrosion or leakage, and suitable for the working conditions of superheated steam and high-temperature oil media.

- Compliant with ASME 900LB pressure class (equivalent to PN150MPa, ≤15.0MPa) and manufactured in strict accordance with GBT 12235, API 600 and ASME B16.34 standards, the valve undergoes rigorous hydrostatic testing (test pressure 22.5MPa, 1.5 times the rated pressure) and low-pressure sealing testing (test pressure 0.6MPa) to completely eliminate leakage risks under rated and extreme working pressures, meeting the strictest safety requirements of power plants and international engineering standards.

- 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, fault alarm and emergency cutoff functions, reducing manual operation intensity and improving the accuracy and efficiency of pipeline control in Deenbandhu Chhotu Ram power Power Plant systems, realizing automatic control of pipeline medium flow and facilitating intelligent management of power plant equipment.

- 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 ultra-high temperature and high pressure conditions, reducing maintenance frequency and operation and maintenance costs, and ensuring that the valve can maintain good sealing performance during long-term frequent on-off operations.

- Integral forged valve body structure (without any welding seams) eliminates internal defects such as pores, cracks and inclusions, enhances the overall structural strength and impact resistance, adapts to the frequent pressure fluctuation scenarios in the ultra-high pressure pipelines of Deenbandhu Chhotu Ram power Power Plant, and is compatible with 300MW-1000MW unit pipeline systems, widely applicable to large-scale thermal power plant key pipeline controlsuperscript:4>.

Applications

- Boiler main steam pipeline system of Deenbandhu Chhotu Ram power Power Plant

- Turbine ultra-high pressure feedwater cutoff pipeline in Deenbandhu Chhotu Ram power Power Plant

- Ultra-high pressure superheated steam pipeline of Deenbandhu Chhotu Ram power Power Plant

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

- Ultra-high pressure instrument control loop of Deenbandhu Chhotu Ram power generation facilities

- High-temperature industrial oil transportation and cutoff pipeline of power plant auxiliary systems

- Ultra-high pressure condensate water recycling pipeline of large-scale 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.

The following is a list of multiple spare parts we can provide for the power station:
#DF-Electric stop valve J961Y-900LB-DF
pressure hose S110-AC-FB-0150
mechanical seal M7N-90
Oil Pump 02-341950
BALL BEARING SINGLE ROW RADIAL DEEP GROOVE 6202 ZZ
Stop valve J65Y-320 25
globe throttle check valve KJC40-2.5P
Throttle valve L61W-2000LB
Skin NXQA-10/20-L-A
Pneumatic Gate Valve Z661Y-100V
Protective ring HB4-58-63-1A
AST solenoid valve assembly MSD0150A1.0
pressure relief valve YSF9-55/50-KJTH
trip coil 4401103 KGA595
globe valve FCV6-16V-S-O-NV
pressure hose S110-AC-FB-0200
Servo valve G761-004
High strength graphite self sealing ring 429×370×54
Sealing ring XM-29-1.5-J8
Stop valve J61Y-P54.5150P
Vacuum stop valve DkJ61H-16C
pressure hose S100-AC-FC-0250
Machinery Seal KF80FZ/15F4
oil seal TC15.9*28.5*8.2
Oil supply pump 50AY35*11
Instrument valve J21H-3000SPL
High pressure accumulator bladder NXQa-40/31.5-L-E
Oil unloading pump 2CY-16/0.32
hydropneumatic accumulator NXQ-0 63L/10
Guiding shaft CO46-07-5
Energy storage device NXQ-A-25/20-L-R/Y
Electric stop valve J961Y-320 25
globe check Throttling valve KJC100-16
O ring HY.SO.0084.V
Solenoid valve B43281006.242 DC24V
O-Ring HB4-56J6-25H
valve HP61Y-160
Coupling drive pin (including shock absorber ring) TL7-03
Electric stop valve J961Y-900LB

Butterfly Valve BDY-100 DN 100
servo valve MOOG J761-003
Swing Check Valve H44H-63C
pressure relief valve YSF8-85/130-KJTH
Gearbox M02225.OMCC1D1.5A
Stop valve J61Y-P51110V
SOLENOID VAE SR551-DN25DW
Oil angle valve QLF661HF-40P
Oil-water alarm OWK-2
Proportional relief valve RZMO-P3-PS-010/210
Solenoid valve 22FDA-K2T-W110R-20
pressure hose S110-AC-FC-0050
Unloading valve DB20-1-L5X31.5U/V
EH oil circulation pump HQ37.02Z-1
relief valve R4V10-533-10A125
Electro-hydraulic reversing valve DG5V-8-H-2C-T-M-U-H-10
Nitrogen pressure reducing valve 44-2263-243-1371
vacuum pump Separation hood P-1937A
Globe valve Z961H-50
accumulator NXQ-A-40/31.5-L
Spring diaphragm pressure reducing valve Y42SD-25
DC seal oil pump seal HSND280-54
EH oil pump outlet unloading valve rpgc-lav
Control valve T667H-64
solenoid valve 4WE6D6X/EG220N9K4/V
First stage (second stage) pump casing HPT300-340-04-03(05)
PUMP CB-B16
DEH HP ACCUMULATOR, BLADDER HQXNQ40.04Z-3
O-ring GB3452.3 406*7-YI7445
Fluorine rubber sealing ring HY-SO-0064-V
Pressure test connector CSH-M14*1.5/WD
Sealing ring HB4-57J6-126
Piston pump 5MCY14-1B
Accumulator Bladder NXQ-L16/31.5-A
Bracket components 0505.1958T0301.AW103
Warm valve assembly solenoid valve M-3SED6UK1X/350CG110N9K4/V/60
Electric stop valve J961Y-P54.540V
Electric stop valve J961Y-900LB

DFYLCTY-2026-1-29-A