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Products / Hydrogen & Cryogenic / Youngdo
Hydrogen, LPG & Industrial Gas Cylinder Valves
The full Youngdo range of cylinder valves engineered for high-pressure gas storage and distribution. From hydrogen cylinder valves rated to 70 MPa with KGS, EC79 and IECEx certification, to LPG cylinder valves, OPD overfilling prevention devices and industrial gas valves for acetylene, chlorine and ammonia service — every product certified for safe, reliable gas service worldwide.
Valvenok supplies a comprehensive range of industrial, marine and instrumentation valves engineered for demanding service conditions across oil & gas, petrochemical, power generation and marine industries. From API-rated process isolation valves to class society approved marine valves and precision SS316 instrumentation valves — every product built for leak-tight, reliable performance.
Hydrogen Cylinder Valves
Youngdo high-pressure hydrogen cylinder valves across 13 models — HC, HE, HK, HS, HSL, EP, DRV, YHT and YEX series. Working pressures from 35–70 MPa with KGS, EC79, R134 and IECEx certification for hydrogen storage, refuelling stations and cylinder distribution.
70 MPa Max Working Pressure
KGS · EC79 · R134
IECEx Explosion-Proof
13 Models
H₂ Service
LPG Cylinder Valves
Youngdo LPG cylinder valves, overfilling prevention devices and piping connection valves across 20 models — YLC, MT, YBC, OPD, YLG and YPC series. KGS, KS, CGA V-1 and UL certified for global LPG cylinder and distribution applications.
2.43 MPa Max Pressure
KGS · KS · CGA V-1
UL 2227
20 Models
LPG Service
Industrial Gas Valves
Youngdo industrial gas cylinder valves across 7 categories — tapered and unified inlet thread valves, non return valves, acetylene, chlorine/ammonia, tube trailer and piping connection valves. KGS, KS, CGA V-1, BS 341 and ISO certified for global industrial gas applications.
25 MPa Max Pressure
KGS · KS · CGA V-1
BS 341 · ISO 10297
7 Categories
Industrial Gas Service
70 MPa
Max H₂ Pressure
KGS · EC79
H₂ Certifications
CGA V-1 · UL
LPG Certifications
IECEx
Explosion Proof
H₂ · LPG · Industrial Gas
Service Range