Product Overview
This forged steel swing check valve features an integral forged steel body and automatically opens/closes by medium pressure, effectively preventing backflow and protecting pumps, compressors and other equipment.
It is designed for small-bore high-pressure and high-temperature applications, with a size range of DN15–DN50 and pressure ratings up to Class 2500.
Widely used in power stations, petrochemical, oil and gas transportation, boiler systems and thermal systems, it provides reliable performance, tight sealing and long service life, complying with international industrial standards for global markets.




Key Features
- Integral forged steel body for high strength & high pressure resistance
Full forged construction with high density, no casting defects, ensuring stable performance under high temperature and high pressure.
- Swing structure for automatic operation
Automatically opens and closes by medium pressure without external operation, effectively preventing medium backflow.
- Reliable sealing with zero leakage
Disc and seat are precision lapped for tight shut-off, no backflow and no leakage.
- High temperature & erosion resistance
Internal structure and sealing parts are designed for high temperature and erosion, suitable for steam, thermal oil, oil, gas and other harsh media.
- Compact small-bore design
Specially designed for DN15–DN50 small-bore pipelines with compact structure and space-saving installation.
- Full pressure ratings available
Pressure range from Class 150 to Class 2500 to meet high-pressure and ultra-high-pressure system requirements.
- Simple structure & easy maintenance
Compact and simple structure with no complex moving parts, low failure rate, easy installation and maintenance.
- International standard compliance
Dimensions, connections and pressure ratings meet mainstream global standards, suitable for Europe, Russia, America and worldwide markets.
Applications
- High-temperature & high-pressure small-bore pipelines for power stations and boilers
- High-pressure process small-bore pipelines in petrochemical and refinery industries
- High-pressure small-bore pipelines for oil and gas wellheads and gathering systems
- High-pressure thermal oil circulation small-bore pipelines
- Backflow prevention systems in chemical, power and oil & gas industries
Product Summary
This forged steel swing check valve is specially designed for DN15–DN50 small-bore high-pressure applications.
With an integral forged steel structure, it provides automatic operation, tight sealing, high temperature and high pressure resistance, erosion resistance and long service life, with pressure ratings up to Class 2500.
Compliant with international standards, it features compact structure, easy installation and maintenance, stable and reliable performance, making it an ideal choice for backflow prevention in small-bore high-pressure pipelines for power, petrochemical, oil & gas and thermal industries.