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Project Progress | DN150–DN400 High-Temperature & High-Pressure Pressure Seal Butt-Weld Gate Valves for Power Plants | API 600 / ASME B16.34 Certified | Premium Materials · Smart Manufacturing · Global Trust | DAQIAN Valves
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The delivered DN150–DN400 high-temperature and high-pressure pressure seal butt-weld gate valves are engineered for critical power plant applications, designed for operating temperatures above 540°C and pressure ratings from Class 1500 to Class 2500.
These valves are strictly manufactured in compliance with international standards including ASME B16.34, API 600, and DL/T 531, ensuring full conformity for design, manufacturing, inspection, and testing in severe service environments.
1. Engineering Materials & Performance
The valve body is integrally forged from ASTM A182 F22 chrome-moly alloy steel, providing exceptional performance in high-temperature and high-pressure conditions. This material offers:
Superior high-temperature strength
Excellent creep resistance
Strong resistance to hydrogen damage
Long-term stability under continuous steam service
These characteristics make the valves ideal for main steam systems and high-pressure feedwater systems in thermal power plants.
2. Application Reliability in Power Plant Systems
Designed for severe service conditions, DAQIAN pressure seal gate valves ensure stable performance in:
Main steam pipelines
High-pressure feedwater systems
Boiler isolation systems
Thermal power plant critical flow control
Each valve is engineered to maintain low leakage, high sealing integrity, and long operational life under fluctuating load conditions.
3. Smart Manufacturing & Quality Assurance
With advanced smart manufacturing processes and strict quality control systems, DAQIAN Valves has established a reliable production and delivery framework within the global industrial valve supply chain.
Every valve undergoes:
Pressure testing
High-temperature performance validation
Non-destructive testing (NDT)
Dimensional inspection and traceability control
This ensures consistent performance and compliance with international engineering requirements.
4. Global Engineering Trust
DAQIAN Valves is committed to delivering not only industrial valve products, but also long-term engineering reliability, technical assurance, and global project value.
We sincerely appreciate the continued trust and support of our global EPC partners and industrial customers.
5. DAQIAN Global Commitment
DAQIAN Valves · Smart Manufacturing
DAQIAN Ocean Trade · Qian’s Global Reach
Connecting the World · Creating Prosperity Together
6. Contact Information
For technical datasheets, quotation, or project support:
📧 QianhaiExport@daqianvalves.com
🌐 www.DAQIANValves.com
LinkedIn | WhatsApp | WeChat: +86 199 2529 2816
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