Flanges for Pulp & Paper Mills
Specialized flanges for black liquor, steam condensate, and harsh mill environments with stainless steel and specialty alloy solutions.
Mill-Proven Solutions
Pulp and paper mills are among the world's most challenging industrial environments. ApiFlange supplies specialized flanges for black liquor systems, kraft process chemicals, steam condensate, recovery boiler service, and the full spectrum of mill operations. With decades of mill experience, we understand the unique corrosion, temperature, and pressure challenges of chemical pulping. Our stainless steel and specialty alloy flanges are engineered to deliver extended service life and reduced maintenance in these demanding facilities.
Black Liquor Ready
Kraft compatible
Mill-Tested
Industry proven
Extended Life
Low maintenance
Common Flange Types
Slip-On Flanges
Standard mill configuration for black liquor, steam, and condensate lines.
Weld Neck Flanges
Recovery boiler and high-pressure steam service requiring reinforced design.
Blind Flanges
System isolation and maintenance access points throughout mill operations.
Plate Flanges
Equipment connections for recovery boilers, heat exchangers, and pump systems.
Materials for Pulp & Paper Service
Kraft mill chemicals demand corrosion-resistant materials. Stainless steel is the industry standard, with specialty alloys for extreme service conditions.
Standard Materials
- •Stainless 304/304L
- •Stainless 316/316L
- •Black liquor service
- •Mill-proven durability
Premium Options
- •Duplex stainless steel
- •High-temperature alloys
- •Recovery boiler service
- •Maximum mill life
Optimize Your Mill Performance
Contact our pulp and paper specialists to discuss black liquor systems, recovery boilers, and mill-proven flange solutions.