Control at low temperature
Cold-box angle valves, low-temperature ball valves and specialist LH valve configurations for cryogenic liquid and gas duties.
HANGYANG KOSO / HYKOSO
Cryogenic
& gas valves.
Engineered flow control for air separation, LNG, cryogenic storage and oxygen pipelines.
Isolation · Regulation · SafetyDesign · Manufacturing · Service
Precision across the process
From the cold box
to the gas pipeline.
Hangzhou Hangyang Koso designs and manufactures valves for regulating, isolation and safety duties across industrial gas systems.
EDGE-GAS helps define the valve type, materials, trim and actuation around your process conditions—from cryogenic liquids to oxygen service and large-bore switching.
01 / Valve portfolio
Three application families.
One coordinated range.
Regulate the process
Top-guided and cage-guided control valves, with Monel oxygen-service and angle-pattern options in the wider portfolio.
Switch with purpose
Single-eccentric, high-performance and triple-eccentric butterfly valves, plus three-lever valves for ASU purifier switching.
02 / Complete catalog coverage
The valve type for every duty.
Explore both catalog families: process valves and control valves.
Process valves
- Globe valve
- Throttle valve
- Butterfly valve
- Check valve
- Ball valve
- Gate valve
- Safety valve
- Breathing valve
- Quick-action bottom drain valve
Control valves
- Top-guided unbalanced control valve · GL100
- Cage-guided balanced control valve · GL200
- Cold-box angle valve, top-guided unbalanced · AG100
- Cold-box angle valve, cage-guided balanced · AG200
- Single-eccentric butterfly valve · BF100
- High-performance butterfly valve · BF200
- Triple-eccentric butterfly valve · BF300
- Three-lever valve · BF400
- Ball valve · BA100 / BA200 / BA300
Process-valve sizes, ratings and construction are available on application. The documented control-valve series are compared below.
Explore the configurations
More from the valve range.
Control-valve and butterfly-valve configurations from the HYKOSO catalog.
GL100
Top-guided unbalanced control valve
DN20–DN200
View series specifications ↓
AG200
Cold-box angle control valve · balanced
DN40–DN300
View series specifications ↓
BF100
Single-eccentric butterfly valve
DN50–DN1200
View series specifications ↓
BF300
Triple-eccentric butterfly valve
DN100–DN800
View series specifications ↓03 / Technical range
Compare the documented series.
Catalog size and temperature envelopes, with pressure-rating options for each family.
| Series / valve type | Nominal size | Temperature | Pressure-rating options |
|---|---|---|---|
| GL100 ↓Top-guided unbalanced control valve | DN20–DN200 | −196 to +538°C | PN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900 |
| GL200 ↓Cage-guided balanced control valve | DN40–DN400 | −196 to +538°C | PN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900 |
| AG100 ↓Cold-box angle control valve · unbalanced | DN20–DN200 | −196 to +80°C | PN16, PN40, PN64 · CL150, CL300, CL600 |
| AG200 ↓Cold-box angle control valve · balanced | DN40–DN300 | −196 to +80°C | PN16, PN40, PN100 · CL150, CL300, CL600 |
| BF100 ↓Single-eccentric butterfly valve | DN50–DN1200 | −20 to +200°C | PN6, PN10, PN16 |
| BF200 ↓High-performance butterfly valve | DN80–DN1400 | −20 to +200°C | PN16 · CL150 |
| BF300 ↓Triple-eccentric butterfly valve | DN100–DN800 | −196 to +230°C | PN16, PN40, PN64, PN100 · CL150, CL300, CL600 |
| BF400 ↓Three-lever valve | DN300–DN1600 | −40 to +450°C | PN10, PN16, PN40 · CL150 |
| BA100 / BA200 / BA300 ↓Ball valve | DN15–DN400 | −196 to +425°C | PN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900 |
Ranges describe the catalog family, not a single valve configuration. Temperature, pressure class, materials and seat selection must be confirmed together for the specified medium and duty.
GL100 / Top-guided unbalanced control valve
Compact control-valve construction with options for bellows seals, steam jackets and extended bonnets.
Construction options
The top-guided, unbalanced design offers a simple, compact arrangement. Bellows-sealed, steam-jacketed and long extended-bonnet versions are listed as construction options; the configuration is selected around the process duty.
Nominal sizeDN20–DN200
Temperature envelope−196 to +538°C
Pressure-rating optionsPN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900
ConnectionsFlanged / welded
Flow characteristicLinear, equal percentage, modified equal percentage, on–off
Catalog leakage classesIV, V, VI
GL200 / Cage-guided balanced control valve
Balanced trim for high pressure-drop duties. GL220 multistage trim is available for high differential-pressure applications.
Balanced control trim
A pressure-balanced cage arrangement reduces the operating force needed for stable regulation under large pressure drops. For higher differential pressures, the catalog identifies GL220 multistage depressurization trim.
Nominal sizeDN40–DN400
Temperature envelope−196 to +538°C
Pressure-rating optionsPN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900
ConnectionsFlanged / welded
Flow characteristicLinear, equal percentage, on–off
Catalog leakage classesIV, V, VI
AG100 / Cold-box angle control valve · unbalanced
Top-guided angle construction for cryogenic fluid control. Bellows construction is recommended in the catalog for cryogenic liquid.
Cryogenic angle construction
The compact angle-pattern body is intended for cryogenic fluid control within a cold box. The catalog recommends bellows construction for cryogenic liquid duties; bonnet and sealing requirements should be specified with the installation.
Nominal sizeDN20–DN200
Temperature envelope−196 to +80°C
Pressure-rating optionsPN16, PN40, PN64 · CL150, CL300, CL600
ConnectionsWelded
Flow characteristicLinear, equal percentage, modified equal percentage, on–off
Catalog leakage classesIV, V, VI
AG200 / Cold-box angle control valve · balanced
Cage-guided construction for higher differential pressures in cold boxes, with low-noise and anti-vibration features.
Higher differential-pressure duty
The balanced cage-guided design is intended for cold-box service under high differential pressure. The catalog highlights low-noise and anti-vibration characteristics and recommends bellows construction for cryogenic liquids.
Nominal sizeDN40–DN300
Temperature envelope−196 to +80°C
Pressure-rating optionsPN16, PN40, PN100 · CL150, CL300, CL600
ConnectionsWelded
Flow characteristicLinear, equal percentage
Catalog leakage classesIV, V, VI
BF100 / Single-eccentric butterfly valve
Elastic seat-ring construction for small and medium air-separation purification systems.
Elastic seating
The elastic seat ring provides sealing performance for purification systems in small and medium air-separation plants. The wafer connection supports installation between mating pipe flanges; confirm the seat and actuator configuration for the duty.
Nominal sizeDN50–DN1200
Temperature envelope−20 to +200°C
Pressure-rating optionsPN6, PN10, PN16
ConnectionsWafer
Flow characteristicApproximate equal percentage
Catalog leakage classesVI
BF200 / High-performance butterfly valve
High seating performance with a choice of seal-ring constructions for different service conditions.
Seat-ring selection
The high-performance design combines durable construction with high seating performance. Different seal-ring constructions are available to suit different applications, with wafer and flanged connection options in the catalog.
Nominal sizeDN80–DN1400
Temperature envelope−20 to +200°C
Pressure-rating optionsPN16 · CL150
ConnectionsWafer / flanged
Flow characteristicApproximate equal percentage
Catalog leakage classesV, VI
BF300 / Triple-eccentric butterfly valve
Metal-seated, quarter-turn isolation with triple-eccentric geometry designed to avoid rubbing during rotation.
Metal-seated quarter-turn operation
Triple-eccentric geometry is designed to eliminate seat rubbing throughout the 90-degree rotation. The metal-seated construction covers both low-temperature and warmer process duties within the selected configuration’s rating.
Nominal sizeDN100–DN800
Temperature envelope−196 to +230°C
Pressure-rating optionsPN16, PN40, PN64, PN100 · CL150, CL300, CL600
ConnectionsWafer / flanged
Flow characteristicApproximate equal percentage
Catalog leakage classesIV, V
BF400 / Three-lever valve
Designed for ASU molecular-sieve purifier switching, with self-cleaning and zero-friction sealing-face movement.
ASU purifier switching
The three-lever mechanism is dedicated to molecular-sieve purifier systems. The catalog highlights self-cleaning, pressure-balancing protection to reduce molecular-sieve impact, and zero friction at the sealing faces during opening and closing.
Nominal sizeDN300–DN1600
Temperature envelope−40 to +450°C
Pressure-rating optionsPN10, PN16, PN40 · CL150
ConnectionsFlanged
Flow characteristicOn–off
Catalog leakage classesV, VI
BA100 / BA200 / BA300 / Ball valve
High shut-off performance for liquid and gas service, including low-temperature configurations.
Liquid and gas isolation
The BA family provides high shut-off performance for liquid and gas media. The catalog lists PTFE, PCTFE and PEEKMG124 seat-material options, with stainless-steel, Monel and Inconel ball-material options. The image shows a low-temperature actuated example from the family.
Nominal sizeDN15–DN400
Temperature envelope−196 to +425°C
Pressure-rating optionsPN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900
ConnectionsFlanged / welded
Flow characteristicApproximate equal percentage, on–off
Catalog leakage classesV, VI
Large-bore applications
Isolation on
a different scale.
Butterfly and three-lever configurations cover a broad range of line sizes and operating duties.
Butterfly range: up to DN1400
BF100, BF200 and BF300 offer distinct seat constructions, eccentric geometries and service envelopes.
Three-lever range: up to DN1600
BF400 is dedicated to molecular-sieve purifier switching in air-separation systems.
04 / Specialist media
Oxygen. Liquid helium.
Liquid hydrogen.
Down to −269°C
Published presentation envelope for selected LHe / LH₂ control valves only.
Oxygen-service configurations
Monel valve options are shown in the HYKOSO portfolio for oxygen pipelines. Specify oxygen concentration, pressure, temperature and cleaning requirements.
Deep-cryogenic control
Specialist liquid-helium and liquid-hydrogen valves extend beyond the standard series shown above. Confirm the exact model, construction and service envelope for each application.
Application-specific construction
Define materials, sealing, extended bonnet or bellows requirements, actuation and fail position as part of the valve selection.
A clear basis for selection
Start with your operating duty.
01 / MEDIUM & CONDITIONS
Define the process
Gas or liquid, composition, minimum and maximum temperature, inlet and outlet pressure, and required flow range.
02 / MECHANICAL INTERFACE
Specify the installation
Nominal diameter, connection standard, pressure rating, materials, space constraints and cold-box arrangement.
03 / CONTROL & SHUT-OFF
Set the valve function
Regulating, isolation or safety duty; leakage class, actuation, fail position, signals and documentation requirements.
Your next gas-system project
Let’s specify the right valve.
Share your medium, operating conditions and line size. EDGE-GAS will help assess the valve family and configuration.
HANGYANG KOSO / HYKOSO
Cryogenic
& gas valves.
Engineered flow control for air separation, LNG, cryogenic storage and oxygen pipelines.
Isolation · Regulation · SafetyDesign · Manufacturing · Service
Precision across the process
From the cold box
to the gas pipeline.
Hangzhou Hangyang Koso designs and manufactures valves for regulating, isolation and safety duties across industrial gas systems.
EDGE-GAS helps define the valve type, materials, trim and actuation around your process conditions—from cryogenic liquids to oxygen service and large-bore switching.
01 / Valve portfolio
Three application families.
One coordinated range.
Control at low temperature
Cold-box angle valves, low-temperature ball valves and specialist LH valve configurations for cryogenic liquid and gas duties.
Regulate the process
Top-guided and cage-guided control valves, with Monel oxygen-service and angle-pattern options in the wider portfolio.
Switch with purpose
Single-eccentric, high-performance and triple-eccentric butterfly valves, plus three-lever valves for ASU purifier switching.
02 / Complete catalog coverage
The valve type for every duty.
Explore both catalog families: process valves and control valves.
Process valves
- Globe valve
- Throttle valve
- Butterfly valve
- Check valve
- Ball valve
- Gate valve
- Safety valve
- Breathing valve
- Quick-action bottom drain valve
Control valves
- Top-guided unbalanced control valve · GL100
- Cage-guided balanced control valve · GL200
- Cold-box angle valve, top-guided unbalanced · AG100
- Cold-box angle valve, cage-guided balanced · AG200
- Single-eccentric butterfly valve · BF100
- High-performance butterfly valve · BF200
- Triple-eccentric butterfly valve · BF300
- Three-lever valve · BF400
- Ball valve · BA100 / BA200 / BA300
Process-valve sizes, ratings and construction are available on application. The documented control-valve series are compared below.
Explore the configurations
More from the valve range.
Control-valve and butterfly-valve configurations from the HYKOSO catalog.
GL100
Top-guided unbalanced control valve
DN20–DN200
View series specifications ↓AG200
Cold-box angle control valve · balanced
DN40–DN300
View series specifications ↓BF100
Single-eccentric butterfly valve
DN50–DN1200
View series specifications ↓BF300
Triple-eccentric butterfly valve
DN100–DN800
View series specifications ↓03 / Technical range
Compare the documented series.
Catalog size and temperature envelopes, with pressure-rating options for each family.
| Series / valve type | Nominal size | Temperature | Pressure-rating options |
|---|---|---|---|
| GL100 ↓Top-guided unbalanced control valve | DN20–DN200 | −196 to +538°C | PN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900 |
| GL200 ↓Cage-guided balanced control valve | DN40–DN400 | −196 to +538°C | PN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900 |
| AG100 ↓Cold-box angle control valve · unbalanced | DN20–DN200 | −196 to +80°C | PN16, PN40, PN64 · CL150, CL300, CL600 |
| AG200 ↓Cold-box angle control valve · balanced | DN40–DN300 | −196 to +80°C | PN16, PN40, PN100 · CL150, CL300, CL600 |
| BF100 ↓Single-eccentric butterfly valve | DN50–DN1200 | −20 to +200°C | PN6, PN10, PN16 |
| BF200 ↓High-performance butterfly valve | DN80–DN1400 | −20 to +200°C | PN16 · CL150 |
| BF300 ↓Triple-eccentric butterfly valve | DN100–DN800 | −196 to +230°C | PN16, PN40, PN64, PN100 · CL150, CL300, CL600 |
| BF400 ↓Three-lever valve | DN300–DN1600 | −40 to +450°C | PN10, PN16, PN40 · CL150 |
| BA100 / BA200 / BA300 ↓Ball valve | DN15–DN400 | −196 to +425°C | PN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900 |
Ranges describe the catalog family, not a single valve configuration. Temperature, pressure class, materials and seat selection must be confirmed together for the specified medium and duty.
GL100 / Top-guided unbalanced control valve
Compact control-valve construction with options for bellows seals, steam jackets and extended bonnets.
Construction options
The top-guided, unbalanced design offers a simple, compact arrangement. Bellows-sealed, steam-jacketed and long extended-bonnet versions are listed as construction options; the configuration is selected around the process duty.
Nominal sizeDN20–DN200
Temperature envelope−196 to +538°C
Pressure-rating optionsPN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900
ConnectionsFlanged / welded
Flow characteristicLinear, equal percentage, modified equal percentage, on–off
Catalog leakage classesIV, V, VI
GL200 / Cage-guided balanced control valve
Balanced trim for high pressure-drop duties. GL220 multistage trim is available for high differential-pressure applications.
Balanced control trim
A pressure-balanced cage arrangement reduces the operating force needed for stable regulation under large pressure drops. For higher differential pressures, the catalog identifies GL220 multistage depressurization trim.
Nominal sizeDN40–DN400
Temperature envelope−196 to +538°C
Pressure-rating optionsPN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900
ConnectionsFlanged / welded
Flow characteristicLinear, equal percentage, on–off
Catalog leakage classesIV, V, VI
AG100 / Cold-box angle control valve · unbalanced
Top-guided angle construction for cryogenic fluid control. Bellows construction is recommended in the catalog for cryogenic liquid.
Cryogenic angle construction
The compact angle-pattern body is intended for cryogenic fluid control within a cold box. The catalog recommends bellows construction for cryogenic liquid duties; bonnet and sealing requirements should be specified with the installation.
Nominal sizeDN20–DN200
Temperature envelope−196 to +80°C
Pressure-rating optionsPN16, PN40, PN64 · CL150, CL300, CL600
ConnectionsWelded
Flow characteristicLinear, equal percentage, modified equal percentage, on–off
Catalog leakage classesIV, V, VI
AG200 / Cold-box angle control valve · balanced
Cage-guided construction for higher differential pressures in cold boxes, with low-noise and anti-vibration features.
Higher differential-pressure duty
The balanced cage-guided design is intended for cold-box service under high differential pressure. The catalog highlights low-noise and anti-vibration characteristics and recommends bellows construction for cryogenic liquids.
Nominal sizeDN40–DN300
Temperature envelope−196 to +80°C
Pressure-rating optionsPN16, PN40, PN100 · CL150, CL300, CL600
ConnectionsWelded
Flow characteristicLinear, equal percentage
Catalog leakage classesIV, V, VI
BF100 / Single-eccentric butterfly valve
Elastic seat-ring construction for small and medium air-separation purification systems.
Elastic seating
The elastic seat ring provides sealing performance for purification systems in small and medium air-separation plants. The wafer connection supports installation between mating pipe flanges; confirm the seat and actuator configuration for the duty.
Nominal sizeDN50–DN1200
Temperature envelope−20 to +200°C
Pressure-rating optionsPN6, PN10, PN16
ConnectionsWafer
Flow characteristicApproximate equal percentage
Catalog leakage classesVI
BF200 / High-performance butterfly valve
High seating performance with a choice of seal-ring constructions for different service conditions.
Seat-ring selection
The high-performance design combines durable construction with high seating performance. Different seal-ring constructions are available to suit different applications, with wafer and flanged connection options in the catalog.
Nominal sizeDN80–DN1400
Temperature envelope−20 to +200°C
Pressure-rating optionsPN16 · CL150
ConnectionsWafer / flanged
Flow characteristicApproximate equal percentage
Catalog leakage classesV, VI
BF300 / Triple-eccentric butterfly valve
Metal-seated, quarter-turn isolation with triple-eccentric geometry designed to avoid rubbing during rotation.
Metal-seated quarter-turn operation
Triple-eccentric geometry is designed to eliminate seat rubbing throughout the 90-degree rotation. The metal-seated construction covers both low-temperature and warmer process duties within the selected configuration’s rating.
Nominal sizeDN100–DN800
Temperature envelope−196 to +230°C
Pressure-rating optionsPN16, PN40, PN64, PN100 · CL150, CL300, CL600
ConnectionsWafer / flanged
Flow characteristicApproximate equal percentage
Catalog leakage classesIV, V
BF400 / Three-lever valve
Designed for ASU molecular-sieve purifier switching, with self-cleaning and zero-friction sealing-face movement.
ASU purifier switching
The three-lever mechanism is dedicated to molecular-sieve purifier systems. The catalog highlights self-cleaning, pressure-balancing protection to reduce molecular-sieve impact, and zero friction at the sealing faces during opening and closing.
Nominal sizeDN300–DN1600
Temperature envelope−40 to +450°C
Pressure-rating optionsPN10, PN16, PN40 · CL150
ConnectionsFlanged
Flow characteristicOn–off
Catalog leakage classesV, VI
BA100 / BA200 / BA300 / Ball valve
High shut-off performance for liquid and gas service, including low-temperature configurations.
Liquid and gas isolation
The BA family provides high shut-off performance for liquid and gas media. The catalog lists PTFE, PCTFE and PEEKMG124 seat-material options, with stainless-steel, Monel and Inconel ball-material options. The image shows a low-temperature actuated example from the family.
Nominal sizeDN15–DN400
Temperature envelope−196 to +425°C
Pressure-rating optionsPN16, PN40, PN100, PN160 · CL150, CL300, CL600, CL900
ConnectionsFlanged / welded
Flow characteristicApproximate equal percentage, on–off
Catalog leakage classesV, VI
Large-bore applications
Isolation on
a different scale.
Butterfly and three-lever configurations cover a broad range of line sizes and operating duties.
Butterfly range: up to DN1400
BF100, BF200 and BF300 offer distinct seat constructions, eccentric geometries and service envelopes.
Three-lever range: up to DN1600
BF400 is dedicated to molecular-sieve purifier switching in air-separation systems.
04 / Specialist media
Oxygen. Liquid helium.
Liquid hydrogen.
Down to −269°C
Published presentation envelope for selected LHe / LH₂ control valves only.
Oxygen-service configurations
Monel valve options are shown in the HYKOSO portfolio for oxygen pipelines. Specify oxygen concentration, pressure, temperature and cleaning requirements.
Deep-cryogenic control
Specialist liquid-helium and liquid-hydrogen valves extend beyond the standard series shown above. Confirm the exact model, construction and service envelope for each application.
Application-specific construction
Define materials, sealing, extended bonnet or bellows requirements, actuation and fail position as part of the valve selection.
A clear basis for selection
Start with your operating duty.
01 / MEDIUM & CONDITIONS
Define the process
Gas or liquid, composition, minimum and maximum temperature, inlet and outlet pressure, and required flow range.
02 / MECHANICAL INTERFACE
Specify the installation
Nominal diameter, connection standard, pressure rating, materials, space constraints and cold-box arrangement.
03 / CONTROL & SHUT-OFF
Set the valve function
Regulating, isolation or safety duty; leakage class, actuation, fail position, signals and documentation requirements.
Your next gas-system project
Let’s specify the right valve.
Share your medium, operating conditions and line size. EDGE-GAS will help assess the valve family and configuration.