KZNRF Series High Temperature, Heavy Duty Abrasion-Resistant Solids Handling Pumps

The Ultimate Combination: Extreme Abrasion Resistance + High Temperature Performance

The BJM Pumps KZNRF Series represents the most advanced configuration in the KZN family, combining severe-duty hardened construction with high-temperature capability up to 200°F (93°C).

Engineered for the harshest slurry environments, the KZNRF Series delivers maximum durability and reliability in applications involving hot, highly abrasive solids, where standard pumps experience rapid wear or failure.

Built for Dual Extremes: Heat and Wear

KZNRF pumps feature a hardened ductile iron volute heat-treated to approximately 71 Rockwell C, providing roughly twice the abrasion resistance of standard ductile iron.

At the same time, the pumps are equipped with a Fahrenheit® high-temperature motor system, including Class R insulation and high-temperature-rated components that enable continuous operation in hot slurry conditions.

Key Features & Benefits

• High Temperature Capability: Handles fluids up to 200°F (93°C)

• Severe-Duty Abrasion Resistance: Hardened volute for extended wear life

• Fahrenheit® Motor Design: High-temperature insulation and components

• High-Chrome Components: 28% chrome agitator, impeller, and wear plate

• Heavy-Duty Agitator: Keeps solids suspended for efficient operation

• Semi-Open Impeller: Handles high concentrations of abrasive solids

• Flexible Configurations: Standard (RF), high-head (CHRF/HRF), and high-flow (LRF)

• Advanced Seal System: Double silicon carbide mechanical seals

• Integrated Protection: Thermal sensors and Seal Minder® moisture detection

• High-Temp Rated Cables: Designed for sustained high-heat environments

Designed for Continuous Operation in Harsh Conditions

KZNRF pumps are built for continuous-duty service in environments where high temperature and abrasion occur simultaneously.

The oil-filled seal chamber protects the dual mechanical seals, while embedded thermal sensors shut down the pump if excessive temperatures are reached. High-temperature-rated cables and materials ensure long-term reliability under sustained thermal stress.

Performance Specifications

• Horsepower (HP): 5 HP, 30 HP

• Max Flow: Up to ~1,691 GPM

• Max Head: Up to ~102 ft

• Max Solids Handling: Up to ~1.5"

• Max Temperature: 200°F (93°C)

• Motor Insulation: Class R (high-temperature rated)

• Motor Speed:~1750 RPM

Typical Services & Ideal Applications

The KZNRF Series is designed for extreme-duty slurry applications where both temperature and abrasion are critical factors.

Common applications include:

• Mining operations with hot slurry streams

• Steel mills and scale handling

• Power plant ash and hot-water discharge

• Chemical and industrial processing systems

• Sand, gravel, and dredging with thermal exposure