Low-Temperature Single-Seat Control Valve with Azbil Positioner
Product Overview
The Chinese Low-Temperature Single-Seat Control Valve, paired with
an Azbil Smart Valve Positioner, delivers unparalleled precision
and reliability for flow control in cryogenic and low-temperature
industrial applications. Engineered for environments as cold as
-196°C, the valve features a robust single-seat design for tight
shut-off and precise modulation, ideal for LNG, petrochemical, and
industrial gas systems. The Azbil Smart Valve Positioner enhances
performance with advanced diagnostics, HART/FOUNDATION Fieldbus
communication, and auto-tuning capabilities, ensuring optimal valve
positioning and process efficiency. This combination is compliant
with international standards like ASME, API, and IEC, making it a
trusted solution for demanding low-temperature processes.
Key Features
- Cryogenic Compatibility: Operates reliably in temperatures as low as -196°C, ideal for LNG
and liquid nitrogen applications.
- Single-Seat Design: Provides tight shut-off and precise flow control for
low-temperature fluids.
- Azbil Smart Positioner: Features auto-tuning, advanced diagnostics, and HART/FOUNDATION
Fieldbus for seamless integration and monitoring.
- Extended Bonnet: Ensures thermal insulation and protects the actuator in cryogenic
conditions.
- High-Precision Control: Azbil positioner delivers ±0.5% accuracy for optimal flow
modulation.
- Durable Materials: Valve body constructed from stainless steel or low-temperature
alloys; positioner housing is corrosion-resistant.
- Low Maintenance: Self-diagnostic features and robust construction reduce downtime
and maintenance costs.
- Global Certifications: Compliant with ASME B16.34, API 6D, IEC 60534, and PED for
worldwide applicability.
- Flexible Configurations: Supports pneumatic, electric, or electro-pneumatic actuators for
versatile integration.
Technical Specifications
| Parameter | Low-Temperature Single-Seat Control Valve | Azbil Smart Valve Positioner |
|---|
| Valve Size | DN 15 to DN 200 (NPS ½" to 8") | N/A |
| Pressure Rating | PN 10 to PN 100 (ANSI Class 150 to 600) | N/A |
| Temperature Range | -196°C to 200°C (-321°F to 392°F) | -40°C to 80°C (-40°F to 176°F) |
| Flow Capacity (Cv) | 0.1 to 400 | N/A |
| Body Materials | Stainless steel (1.4408, CF8M), low-temperature carbon steel | Aluminum alloy with corrosion-resistant coating |
| Trim Materials | Stainless steel, Hastelloy (optional) | N/A |
| Seat Leakage | Class IV to VI (per IEC 60534-4) | N/A |
| Actuator Type | Pneumatic, electric, or electro-pneumatic | Pneumatic input (4-20 mA) |
| Positioner Communication | N/A | HART, FOUNDATION Fieldbus, 4-20 mA |
| Positioner Accuracy | N/A | ±0.5% full scale |
| Certifications | ASME B16.34, API 6D, PED, ATEX (optional) | IEC 61508 (SIL 3 capable), ATEX, FM, CSA |
Applications
The Low-Temperature Single-Seat Control Valve with Azbil Positioner
is optimized for precise flow control in cryogenic and
low-temperature applications:
- LNG Processing: Regulates flow in liquefaction and regasification systems.
- Petrochemical Industry: Controls low-temperature fluids in ethylene and propylene plants.
- Industrial Gases: Manages liquid nitrogen, oxygen, and argon in storage and
distribution.
- Chemical Processing: Ensures precise control in cryogenic reactors and separators.
- Energy Sector: Supports low-temperature processes in power generation and
cooling systems.
Frequently Asked Questions
What makes this combination suitable for cryogenic applications?
The valve’s low-temperature materials and extended bonnet, combined
with the Azbil positioner’s precision control, ensure reliable
performance down to -196°C.
How does the Azbil positioner enhance valve performance?
It provides ±0.5% accuracy, auto-tuning, and advanced diagnostics
via HART/FOUNDATION Fieldbus for optimal flow control and
monitoring.
Can the valve handle high-pressure applications?
Yes, it supports pressure ratings up to PN 100 (ANSI Class 600),
suitable for demanding industrial systems.
What certifications ensure global compliance?
The valve complies with ASME B16.34, API 6D, and PED, while the
positioner meets IEC 61508 (SIL 3 capable), ATEX, FM, and CSA
standards.
How is maintenance simplified?
The valve’s robust design and the positioner’s self-diagnostic
features reduce maintenance needs and downtime.
Contact Us
For more information about the Low-Temperature Single-Seat Control
Valve with Azbil Positioner, pricing, or to request a demo, contact
our team:
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