Wuzhong Cryogenic Regulating Valve ALS ALC Series Azbil Avp200 Positioner for Lng and Low Temp Systems
The Wuzhong ALS/ALC Series Cryogenic Regulating Valve, paired with the Azbil AVP200 smart positioner, is a high-performance control solution engineered specifically for low-temperature and cryogenic process systems. Designed to meet the stringent demands of LNG production, air separation, petrochemical, and industrial gas applications, this valve delivers precise flow control and reliable sealing at temperatures as low as -196°C. The integrated Azbil AVP200 positioner ensures accurate valve positioning, fast response, and stable operation, even in extreme cryogenic environments. Built on Wuzhong’s decades of expertise in industrial valve manufacturing, this combination offers a cost-effective alternative to imported cryogenic valves without compromising on performance or safety.
- Cryogenic-rated design with extended bonnet for stable operation down to -196°C
- Azbil AVP200 smart positioner for high-precision flow regulation and fast response
- Bellows-free low-temperature sealing structure to prevent external leakage
- Rugged cast steel/stainless steel body construction for long-term durability
- Optimized flow path design for low noise and anti-cavitation performance
- High cycle fatigue resistance suitable for continuous industrial operation
- Simple modular design for easy maintenance and minimal downtime
- Compliance with major international cryogenic valve standards for safety
- Wide range of pressure classes (Class 150–1500) and size options (DN15–DN300)
- Low temperature-compatible trim materials for reliable sealing under extreme cold
| Parameter | Details |
|---|---|
| Valve Series | Wuzhong ALS/ALC Cryogenic Regulating Valve |
| Positioner Model | Azbil AVP200 Smart Positioner |
| Operation Temperature | -196°C to +120°C |
| Pressure Rating | Class 150, 300, 600, 900, 1500 |
| Nominal Size | DN15 to DN300 |
| Body Material | WCB, CF8, CF8M |
| Trim Material | 316L, Stellite Hardfacing |
| Connection Type | Flanged (RF/RJ), Butt Weld |
| Control Signal | 4-20mA DC, HART Protocol (AVP200) |
| Positioner Supply Air | 0.14–0.7 MPa |
| Leakage Class | ANSI/FCI 70-2 Class V |
| Standard Compliance | BS6364, GB/T 24925, ASME B16.34 |
- LNG liquefaction plants, storage tanks, and receiving terminals
- Air separation units for liquid oxygen, nitrogen, and argon production
- Petrochemical processes handling low-temperature hydrocarbons
- Industrial gas systems for cryogenic fluid distribution
- Refinery low-temperature processing and cold box applications
- Pharmaceutical and food industry cryogenic processing systems
- Energy and power plant cryogenic process control loops
Q: What is the minimum operating temperature of this valve?
A: The Wuzhong ALS/ALC series cryogenic regulating valve is rated for stable operation down to -196°C, suitable for liquid nitrogen and LNG applications.
Q: Can the Azbil AVP200 positioner work in cryogenic environments?
A: The AVP200 positioner is installed on the extended bonnet, away from direct cryogenic fluid contact, ensuring reliable operation within its standard ambient temperature range.
Q: What size and pressure ratings are available?
A: The valve is available in sizes DN15 to DN300, with pressure ratings from Class 150 up to Class 1500 to meet different process requirements.
Q: Is this valve compatible with HART communication?
A: Yes, the Azbil AVP200 positioner supports HART protocol, enabling remote configuration, monitoring, and diagnostic functions.
Q: What is the lead time for custom configurations?
A: Standard configurations ship within 4–6 weeks, while custom materials or special trim designs may require 8–10 weeks lead time.
For inquiries, quotations, or technical support, please reach out via:
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