Forged Steel Flanged Check Valve
In high-pressure pipeline systems, reverse flow is not just a performance issue—it can lead to pump damage, compressor failure, and serious pressure instability across the entire system.
- Product Introduction
Product Overview
In high-pressure pipeline systems, reverse flow is not just a performance issue-it can lead to pump damage, compressor failure, and serious pressure instability across the entire system.
The Forged Steel Flanged Check Valve is engineered to solve this risk through a stable, automatic one-way flow mechanism. It operates without external power or control, ensuring reliable protection in continuous industrial service.
Compared with cast steel designs, the forged steel body provides higher structural strength, improved fatigue resistance, and better long-term sealing stability, making it suitable for critical industrial applications.
Technical Specifications
|
Parameter |
Specification |
|
Product Type |
Forged Steel Flanged Check Valve |
|
Size Range |
DN15 – DN50 (1/2" – 2") |
|
Pressure Rating |
Class 150 / 300 / 600 / 800 / 1500 / 2500 |
|
Body Material |
ASTM A105 / A182 F304 / F316L |
|
Design Standard |
API 602 / ASME B16.34 |
|
Testing Standard |
API 598 |
|
End Connection |
Flanged (RF / RTJ) |
|
Flow Direction |
One-way (body marked) |
|
Temperature Range |
-29°C to 425°C (depending on material) |
Working Principle
The valve uses a simple but highly reliable mechanical structure:
☆Forward flow pressure lifts the disc
☆Fluid passes through the valve body
☆When flow decreases or reverses, the disc returns to the seat
☆The sealing surface prevents backflow into the system
No external energy source is required, which significantly improves operational reliability.
Materials & Traceability
Material selection is critical for safety and long-term performance.
Available materials include:
ASTM A105 (carbon steel – general industrial service)
ASTM A182 F304 (corrosion-resistant stainless steel)
ASTM A182 F316L (chemical and aggressive media resistance)
Each valve is supplied with:
Heat number traceability
Material Test Certificate (MTC)
Optional third-party inspection reports
Manufacturing & Quality Control
Each valve is manufactured under strict industrial quality standards.
Production Process
Closed-die forging for enhanced body strength
CNC machining for sealing precision
Controlled assembly with torque management
Anti-corrosion surface treatment
Testing Standard (API 598)
Shell pressure test
Seat leakage test
Hydrostatic pressure test
Visual and dimensional inspection
Third-party inspection (SGS, BV, or customer-appointed agencies) is available upon request.
Applications
This valve is designed for systems where flow reliability and equipment protection are essential:
Oil & gas pipeline transmission systems
01
Refinery process units
02
Steam and boiler systems in power plants
03
Petrochemical processing plants
04
Pump and compressor protection lines
05
Engineering Support & Custom Options
To meet different project requirements, customization is available:
- Material upgrades for corrosive environments
- Higher pressure class configurations
- OEM logo and marking
- Project-specific inspection standards
- End connection customization (RF / RTJ)
Engineering selection support is available based on pressure, temperature, and medium conditions.
Packaging For International Shipping
All valves are prepared for safe global export:
Anti-corrosion oil protection
Plastic end caps for sealing protection
Export-grade wooden case packaging
Technical Documentation
Available for engineering approval and procurement use:
Technical datasheet (PDF)
Dimensional drawings (DWG / PDF)
Material certificates (MTC)
Pressure test reports
Installation guidelines
FAQ
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