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H71
NIPO
Precision Forging for Superior Strength: The one-piece/integral forged valve body features intact grain flow and mechanical properties far exceeding cast components, eliminating hidden risks of internal defects.
A Reliable Guardian for High-Pressure Applications: Engineered specifically for high-pressure, high-fluctuation operating conditions of Class 600 and above, it delivers substantially enhanced pressure-bearing capacity and safety margin.
Steady Performance Across Extreme Temperature Ranges: Maintains consistent performance from -196°C cryogenic temperatures to +540°C high temperatures, expanding its applicability to extreme fields such as LNG and chemical engineering.
A Cost-Effective Choice Throughout the Entire Lifecycle: Exceptional reliability translates to ultra-low maintenance costs and downtime risks, resulting in a lower total cost of ownership over long-term use.
Precision Forging for Superior Strength: The one-piece/integral forged valve body features intact grain flow and mechanical properties far exceeding cast components, eliminating hidden risks of internal defects.
A Reliable Guardian for High-Pressure Applications: Engineered specifically for high-pressure, high-fluctuation operating conditions of Class 600 and above, it delivers substantially enhanced pressure-bearing capacity and safety margin.
Steady Performance Across Extreme Temperature Ranges: Maintains consistent performance from -196°C cryogenic temperatures to +540°C high temperatures, expanding its applicability to extreme fields such as LNG and chemical engineering.
A Cost-Effective Choice Throughout the Entire Lifecycle: Exceptional reliability translates to ultra-low maintenance costs and downtime risks, resulting in a lower total cost of ownership over long-term use.
| Comparison Dimension | Forged Lift Check Valve | Cast Lift Check Valve |
| Core Material Feature | High strength and toughness | Good formability |
| Internal Structure | Dense and uniform; continuous grain flow; no shrinkage cavities or sand holes | Potential casting defects |
| Mechanical Strength | Extremely high; excellent tensile, compressive and fatigue resistance | Meets standard pressure class requirements |
| Impact Toughness | Excellent; resistant to cracking in low-temperature or impact conditions | Relatively low; higher risk of brittleness |
| Pressure Resistance | Higher and safer; suitable for higher pressure classes (e.g., Class 900+) | Suitable for nominal pressure ranges (e.g., Class 150-600) |
| Long-Term Reliability | Excellent; | Good |
| Economy | Higher initial procurement cost; lower total lifecycle cost (maintenance-free) | More advantageous initial procurement cost |
| Comparison Dimension | Forged Lift Check Valve | Cast Lift Check Valve |
| Core Material Feature | High strength and toughness | Good formability |
| Internal Structure | Dense and uniform; continuous grain flow; no shrinkage cavities or sand holes | Potential casting defects |
| Mechanical Strength | Extremely high; excellent tensile, compressive and fatigue resistance | Meets standard pressure class requirements |
| Impact Toughness | Excellent; resistant to cracking in low-temperature or impact conditions | Relatively low; higher risk of brittleness |
| Pressure Resistance | Higher and safer; suitable for higher pressure classes (e.g., Class 900+) | Suitable for nominal pressure ranges (e.g., Class 150-600) |
| Long-Term Reliability | Excellent; | Good |
| Economy | Higher initial procurement cost; lower total lifecycle cost (maintenance-free) | More advantageous initial procurement cost |