High Temperature Power Station Check Valve – YONCO Class 1500LB to 2500LB
The YONCO High Temperature Power Station Check Valve (H64Y) is a premium unidirectional flow control valve engineered specifically for extreme, high-pressure industrial environments. Designed for Class 1500 to 2500Lb applications and capable of withstanding severe working temperatures from -29°C to 570°C, this butt-welded check valve automatically prevents media backflow to protect vital pipeline equipment. It is the ultimate choice for heavy-duty systems in the petroleum, chemical, and thermal power generation sectors.
Core Features & Advantages
- Reliable Backflow Prevention: Automatically operates via media flow, ensuring immediate and positive shut-off to prevent reverse flow damage to pumps, compressors, and upstream equipment.
- Butt-Weld (BW) Connections: Engineered with butt-weld ends to provide a seamless, leak-proof integration into high-pressure and high-temperature piping systems, ensuring absolute structural integrity.
- Extreme Temperature Resilience: Constructed from premium high-temperature alloy steel, capable of safely handling severe working conditions up to 570°C without compromising sealing performance.
- Pressure Seal Bonnet (PSB): Utilizes an advanced self-sealing cavity design where increased internal pipeline pressure actually tightens the seal, maximizing safety in Class 1500-2500 environments.
- Wear-Resistant Hard Facing: The disc and seat sealing surfaces are hard-faced with premium stellite or cemented carbides to resist galling, erosion, and high-velocity steam wear over an extended service life.
Standards & Technical Specifications
| Category | Applicable Standard & Details |
|---|---|
| Product Model | H64Y |
| Pressure Rating | Class 1500, Class 2500 (1500Lb ~ 2500Lb) |
| Size Range | 2″ – 18″ (NPS 2 – NPS 18) |
| Working Temperature | -29°C to +570°C |
| Connection Type | Butt-Weld (BW) |
| Valve Structure | Pressure Seal Bonnet, Swing / Lift Check Type |
| Applicable Mediums | High-Temperature Steam, Water, Oil, Corrosive Chemicals |
Primary Applications
• Thermal Power Generation Plants
• Oil Refining & Petroleum Extraction
• High-Pressure Steam Networks
• Chemical Processing Facilities
• Supercritical Boiler Feedwater Systems
• Heavy Industrial Energy Sectors
High-Pressure Power Station Valves by YONCO
When protecting critical pumps and preventing reverse flow under extreme heat and pressure, failure is not an option—rely on YONCO. Our high-temperature butt-welded check valves undergo rigorous hydrostatic testing and precise dimension control to ensure absolute structural integrity at 570°C and 2500Lb ratings. We provide complete Material Test Reports (MTRs) and comprehensive quality documentation. Contact our technical sales engineers today to specify the right dimensions and pressure class for your power generation pipeline.




