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T: +86-15990630008
E: info@chinahdm.com
E: info@chinahdm.com
Industrial zone, Binhai, Jiaojiang, Taizhou, Zhejiang, China
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The 87912 High-Pressure Flange stands as a premium solution engineered to meet the most demanding hydraulic system requirements, delivering exceptional performance in high-pressure environments where system integrity is critical. As a fully compliant SAE Code 62 component, this flange is specifically designed to handle extreme pressure conditions while maintaining reliable fluid transfer in heavy-duty applications. Its robust construction and precision engineering make it an indispensable component in hydraulic systems where failure is not an option, providing peace of mind across industries that rely on uncompromising hydraulic performance. The 87912 flange sets itself apart through its ability to combine high-pressure capability with ease of installation and broad compatibility with industry-standard components.
Engineered for extreme pressure applications, the 87912 High-Pressure Flange boasts a maximum operating pressure rating of 5,075 PSI (350 bar), with surge pressure handling capabilities exceeding this rating for short-duration events. This flange fully complies with SAE J518 Code 62 specifications, ensuring dimensional consistency and interchangeability with other Code 62 components from leading manufacturers. Its design includes enhanced pressure containment features that exceed basic industry requirements, making it suitable for critical applications where safety and reliability are paramount.
Manufactured from AISI 4140 chrome-moly steel, the 87912 Flange offers superior tensile strength and impact resistance compared to standard carbon steel flanges. The material undergoes a specialized heat treatment process to achieve a minimum tensile strength of 110,000 PSI, ensuring exceptional durability under extreme pressure conditions. The flange face features a precision-machined 30° sealing bevel with a serrated surface finish that enhances gasket retention and ensures uniform pressure distribution. All surfaces receive a zinc-nickel plating treatment, providing superior corrosion resistance verified through 120-hour salt spray testing.
The 87912 High-Pressure Flange is available in sizes ranging from DN13 to DN76 (1/2" to 3" nominal pipe sizes), accommodating a wide range of hydraulic system configurations. It features a four-bolt pattern with standardized hole spacing conforming to SAE specifications, ensuring compatibility with industry-standard flange clamps and hardware. The flange is offered in both weld-on hub and threaded end configurations, providing flexibility for different installation requirements. Specialized configurations, including reducing flanges and elbow flanges, are available to meet specific system design needs.
In the mobile hydraulics sector, the 87912 Flange is widely utilized in large construction machinery, including hydraulic excavators, crawler dozers, and telescopic cranes. It provides critical connections in main hydraulic circuits powering boom cylinders, swing mechanisms, and hydraulic motors that operate under extreme pressure during heavy lifting and earthmoving operations. Its robust design withstands the constant vibration and mechanical stress encountered in these demanding applications.
Within manufacturing facilities, this high-pressure flange is a key component in hydraulic press systems, metal forming machinery, and forging equipment. These applications require reliable performance under repeated pressure cycles up to the flange's maximum rating, where it ensures consistent fluid delivery to hydraulic cylinders that generate the extreme forces needed for metal forming and fabrication processes.
The 87912 High-Pressure Flange plays a vital role in mining equipment hydraulic systems, including haul trucks, loaders, and drilling machinery. Its ability to withstand high pressures while resisting corrosion from abrasive dust and moisture makes it ideal for the harsh operating environments found in mining and resource extraction operations, where equipment reliability directly impacts productivity and operational safety.
The 87912 High-Pressure Flange incorporates several enhanced features: its AISI 4140 chrome-moly steel construction provides superior strength compared to standard carbon steel flanges, while the zinc-nickel plating offers extended corrosion resistance beyond typical finishes. The flange's precision-machined sealing surfaces and enhanced pressure containment design provide an extra margin of safety in critical applications, making it suitable for environments where standard flanges might fail under extreme conditions.
The 87912 Flange requires SAE Code 62 gaskets specifically designed for high-pressure applications up to 5,075 PSI. Recommended gasket materials include spiral-wound stainless steel with graphite filler for high-temperature applications up to 450°F (232°C) and rubber-coated metal for dynamic pressure environments with frequent pressure cycling. For applications involving aggressive fluids, Viton®-faced gaskets are recommended to ensure chemical compatibility and long-term sealing performance.
Proper installation torque varies by bolt size, ranging from 55 ft-lbs for 5/8" Grade 8 bolts to 165 ft-lbs for 1" Grade 8 bolts. The bolts must be tightened in a sequential crisscross pattern, beginning with 30% of final torque, followed by 60%, and finishing with 100% of the recommended specification. This procedure ensures uniform clamping force across the flange face. A calibrated torque wrench must be used, and torque should be rechecked after initial system operation to account for gasket compression.
Yes, while primarily designed to SAE J518 Code 62 specifications, the 87912 Flange is dimensionally compatible with ISO 6162-2 standards for high-pressure hydraulic flanges. This compatibility allows for integration with hydraulic components manufactured to international standards, facilitating global equipment design and component sourcing. When connecting to non-SAE components, we recommend verifying dimensional compatibility, particularly regarding bolt hole spacing and flange thickness.
Regular inspection should include checking for signs of leakage, flange distortion, or bolt loosening. During scheduled maintenance, all bolts should be retorqued to specifications, as thermal cycling and pressure fluctuations can cause gradual loosening over time. The flange face should be inspected for scratches, corrosion, or damage that could compromise the seal. Gaskets must be replaced whenever flanges are disconnected, even if they appear undamaged. For harsh environments, periodic cleaning and inspection for corrosion are recommended, with protective coating touch-ups applied as needed.
The 87912 High-Pressure Flange stands as a premium solution engineered to meet the most demanding hydraulic system requirements, delivering exceptional performance in high-pressure environments where system integrity is critical. As a fully compliant SAE Code 62 component, this flange is specifically designed to handle extreme pressure conditions while maintaining reliable fluid transfer in heavy-duty applications. Its robust construction and precision engineering make it an indispensable component in hydraulic systems where failure is not an option, providing peace of mind across industries that rely on uncompromising hydraulic performance. The 87912 flange sets itself apart through its ability to combine high-pressure capability with ease of installation and broad compatibility with industry-standard components.
Engineered for extreme pressure applications, the 87912 High-Pressure Flange boasts a maximum operating pressure rating of 5,075 PSI (350 bar), with surge pressure handling capabilities exceeding this rating for short-duration events. This flange fully complies with SAE J518 Code 62 specifications, ensuring dimensional consistency and interchangeability with other Code 62 components from leading manufacturers. Its design includes enhanced pressure containment features that exceed basic industry requirements, making it suitable for critical applications where safety and reliability are paramount.
Manufactured from AISI 4140 chrome-moly steel, the 87912 Flange offers superior tensile strength and impact resistance compared to standard carbon steel flanges. The material undergoes a specialized heat treatment process to achieve a minimum tensile strength of 110,000 PSI, ensuring exceptional durability under extreme pressure conditions. The flange face features a precision-machined 30° sealing bevel with a serrated surface finish that enhances gasket retention and ensures uniform pressure distribution. All surfaces receive a zinc-nickel plating treatment, providing superior corrosion resistance verified through 120-hour salt spray testing.
The 87912 High-Pressure Flange is available in sizes ranging from DN13 to DN76 (1/2" to 3" nominal pipe sizes), accommodating a wide range of hydraulic system configurations. It features a four-bolt pattern with standardized hole spacing conforming to SAE specifications, ensuring compatibility with industry-standard flange clamps and hardware. The flange is offered in both weld-on hub and threaded end configurations, providing flexibility for different installation requirements. Specialized configurations, including reducing flanges and elbow flanges, are available to meet specific system design needs.
In the mobile hydraulics sector, the 87912 Flange is widely utilized in large construction machinery, including hydraulic excavators, crawler dozers, and telescopic cranes. It provides critical connections in main hydraulic circuits powering boom cylinders, swing mechanisms, and hydraulic motors that operate under extreme pressure during heavy lifting and earthmoving operations. Its robust design withstands the constant vibration and mechanical stress encountered in these demanding applications.
Within manufacturing facilities, this high-pressure flange is a key component in hydraulic press systems, metal forming machinery, and forging equipment. These applications require reliable performance under repeated pressure cycles up to the flange's maximum rating, where it ensures consistent fluid delivery to hydraulic cylinders that generate the extreme forces needed for metal forming and fabrication processes.
The 87912 High-Pressure Flange plays a vital role in mining equipment hydraulic systems, including haul trucks, loaders, and drilling machinery. Its ability to withstand high pressures while resisting corrosion from abrasive dust and moisture makes it ideal for the harsh operating environments found in mining and resource extraction operations, where equipment reliability directly impacts productivity and operational safety.
The 87912 High-Pressure Flange incorporates several enhanced features: its AISI 4140 chrome-moly steel construction provides superior strength compared to standard carbon steel flanges, while the zinc-nickel plating offers extended corrosion resistance beyond typical finishes. The flange's precision-machined sealing surfaces and enhanced pressure containment design provide an extra margin of safety in critical applications, making it suitable for environments where standard flanges might fail under extreme conditions.
The 87912 Flange requires SAE Code 62 gaskets specifically designed for high-pressure applications up to 5,075 PSI. Recommended gasket materials include spiral-wound stainless steel with graphite filler for high-temperature applications up to 450°F (232°C) and rubber-coated metal for dynamic pressure environments with frequent pressure cycling. For applications involving aggressive fluids, Viton®-faced gaskets are recommended to ensure chemical compatibility and long-term sealing performance.
Proper installation torque varies by bolt size, ranging from 55 ft-lbs for 5/8" Grade 8 bolts to 165 ft-lbs for 1" Grade 8 bolts. The bolts must be tightened in a sequential crisscross pattern, beginning with 30% of final torque, followed by 60%, and finishing with 100% of the recommended specification. This procedure ensures uniform clamping force across the flange face. A calibrated torque wrench must be used, and torque should be rechecked after initial system operation to account for gasket compression.
Yes, while primarily designed to SAE J518 Code 62 specifications, the 87912 Flange is dimensionally compatible with ISO 6162-2 standards for high-pressure hydraulic flanges. This compatibility allows for integration with hydraulic components manufactured to international standards, facilitating global equipment design and component sourcing. When connecting to non-SAE components, we recommend verifying dimensional compatibility, particularly regarding bolt hole spacing and flange thickness.
Regular inspection should include checking for signs of leakage, flange distortion, or bolt loosening. During scheduled maintenance, all bolts should be retorqued to specifications, as thermal cycling and pressure fluctuations can cause gradual loosening over time. The flange face should be inspected for scratches, corrosion, or damage that could compromise the seal. Gaskets must be replaced whenever flanges are disconnected, even if they appear undamaged. For harsh environments, periodic cleaning and inspection for corrosion are recommended, with protective coating touch-ups applied as needed.