Product Introduction
Company Profile
Product Features & Operation Points
- Medium-high pressure optimized design with a nominal pressure of PN40 (4.0MPa), precisely matching the operational demands of key pipelines in power stations, metallurgy, chemical industry and other fields, effectively realizing reliable medium isolation and cut-off while preventing medium leakage, eliminating safety hazards in harsh working environments, and meeting international application standards.
- Scientific flow channel structure greatly reduces medium flow resistance, mitigates erosion damage to the valve seat and clack caused by high-velocity media, ensures stable and reliable isolation and cut-off performance in industrial pipelines for a long time, and matches the structural advantages of medium-high pressure pneumatic stop valves.
- Superior material performance: The valve body of J661Y-40 is made of high-quality forged alloy steel (optimized for high-temperature resistance and sealing performance), combined with wear-resistant alloy overlay on the valve core and seat, offering excellent pressure-bearing capacity, high-temperature resistance, wear resistance and corrosion resistance, which is perfectly adapted to the harsh working conditions of industrial pipeline systems in various fields and meets international product quality standards.
- Adopts efficient pneumatic actuator operation and metal-to-metal seating precision structure; the valve clack and seat are precision ground to achieve tight sealing effect, while the pneumatic control ensures quick response, stable operation and easy remote control, suitable for automatic control scenarios in industrial pipelines. The valve stem is treated with special surface treatment to reduce friction, ensuring no external leakage during long-term operation and facilitating on-site operation, maintenance and debugging without removing the valve from the pipeline, supported by YOYIK's global service network.
- Strictly complies with international industry standards such as API 623, ASME B16.34 and GBT 12224, and all products pass strict performance testing to meet international quality requirements, ensuring excellent interchangeability with existing industrial equipment at home and abroad and simplifying on-site maintenance and spare part replacement processes. Backed by YOYIK's global sales and service network, it can quickly respond to the needs of global customers.
Applications
- Medium isolation systems of boiler feed water auxiliary pipelines in power stations
- Medium isolation systems of main steam and reheat steam auxiliary pipelines in power stations
- Medium isolation systems of high-temperature and high-pressure pipelines in metallurgy and chemical industries
- Medium isolation systems of boiler water sampling and chemical water treatment pipelines
- Medium isolation systems of industrial oil and chemical media pipelines in various industrial facilities
- Medium isolation systems of high-pressure auxiliary equipment in various industrial fields
- Medium isolation systems of instrument loops in power stations, metallurgy, chemical industry and other industries
End Statement
In order to support the operation of the power plant, we have prepared various parts inventory as follows:
#DF-Pneumatic stop valve J661Y-40-DF
Induced draft fan relief valve RPGC-LNN
Nitrogen capsule NXQ-25/31.5-LA
Solenoid valve B13AXCPOON 220V 50/60Hz
AST solenoid valve HQ16.18Z
Check valve H44H-10C
spherical roller bearing 22317 EK
BLADDER A B80/10
Throttle valve L41H-100
Check valve H61H-300SPL
oil cooler YL-40
Blade bushing 345-897H
Bladder NXQA-10/31.5
300MW turbine main oil pump guide vane sleeve 70LY-34*10
Overflow valve CO46-27-00
Thermostatic valve AVTA25 003N0109
AST solenoid valve ZD.02.009
valve AGAM-10/10/350-I 34
Fluorine rubber O-ring HY-SO-0017-V
Solenoid valve 225B-121CAAA\1/4NPT
Stop check valve (stainless steel) KJC20-1.6P
Servo valve seal kit D663Z4305K
pressure relief valve YSF9-35/25-KJTA
electromagnetic valve MFZ2-3C
air filter pressure reducing valve SHV-T50
EH regeneration oil pump 2PB6.2DG2BP1-V-VS40
globe valve 40FJ1.6P
Block valve SD61H-P55160V
Solenoid valve 9333CH98V4BC5-KCX125\3/8""
O-ring HZB253-640-02-01
Vacuum stop valve DKJ940H-100
High speed dust ring HY-SF-0046-V
Pneumatic stop valve J661Y-40
Electric Valve KY-2OUE2
Seal/O-ring XM-12.3-2.4-J8
Top shaft oil safety valve HY-13.02N
Differential pressure valve K050P.97
MSV trip solenoid valve 4WE6D62/EG220NK4N/60
Bellows valves WJ15F2.5P
Directional control valve DG4V-32AL-MU-P7-60
PROFILE SEAL 604/590X8.9
pressure hose S110-AC-FA-0125
Electro Switch SB01200-10W01A2
Rotary valve HH8420DF48 3""
Electric stop valve J961Y-P55150V 12Cr1MoV
Bearing sleeve 3 108 (88/100(130)
Air supply solenoid valve DG3VP-3-102A-VM-U-P-20 110VDC
Coil HZS.P2.AC220-1
The electromagnetic valve 4WE10E31B/CW22050N9Z5L
PU Hydraulic Oil Pump PVP16
globe throttle check valve KJC25C-2.5P
Reheater inlet plugging valve SD61H-P3866I
solenoid valve DGMX2-5-PP-BW-B-30
Mechanical Seal H74N291B-050
flow Regulating valve PV5-10-0-35
Throttle valve L61Y-P55.519V
Diaphragm valve GMVO
pressure relief valve YSF12-85/130-TH
Axial embolization pump 25PCY14-1B
Oil pump room sewage pump YW50-32-200
Sealing oil pump of steam turbine generator ACG045N5IVBP
Sealing ring HB4-56-J8-19H
pressure relief valve YSF9-35/25-KJ
Salt slurry pump SDH125-100-400A
Pneumatic stop valve J661Y-40
DFYLCTY-2026-1-28-A



