Petrochem Severe Duty

Sealing and Protection

Non-contacting labyrinth seals on both bearings, gasketed main t-box & auxiliary t-box, lead separator gaskets, and corrosion-resistant drain & breather at the lowest part of the motor frame & inside main t-box enhance the reliability and durability by providing effective sealing and protection reducing maintenance and preventing costly downtime.

Insulation System

Designed to withstand an immersion test in accordance with NEMA® MG 1, demonstrating proven resistance to moisture penetration for reliable performance in demanding conditions.

Mounting and Alignment

Precision .005-inch motor foot flatness enhances alignment, stability, and optimal performance. It helps prevent increased wear, vibration, and potential damage to both the motor and connected machinery.

Safety

Grounding is prioritized, with grounding lugs installed on the motor frame and inside the main terminal box. These lugs provide a safe path for stray electrical currents to dissipate into the ground, preventing the motor frame from becoming energized.

Corrosion Resistance

Severe-duty, rust-inhibitive hardware and paint system applied to both the motor and shaft/rotor assembly for reliable operation in harsh conditions significantly extends the lifespan of motors by protecting them from environmental factors like moisture, chemicals, and salt.

Testing and Standards

Adhering to rigorous testing and standards, this series undergoes Non-Witnessed Routine Testing per IEEE 112, verifies efficiency, power output, and operational stability while actively identifying manufacturing defects or inconsistencies early.

Ingress Protection

The IP55 robust design effectively prevents the ingress of humidity, dust, dirt, and other environmental contaminants, providing reliable operation even in challenging conditions.

Standard Features

Low Vibration

By exceeding NEMA® vibration requirements, mechanical integrity and stability are maintained, extending the motor’s life and bearing life.

Cast Iron & Anti-Corrosive Design

High-grade cast iron frames and brackets, combined with cast iron or fabricated steel terminal boxes and fan covers, deliver exceptional mechanical rigidity. The use of corrosion-resistant hardware, a resilient paint system, drain, and breather enhances durability in demanding environments.

Interchangeable Bearing Brackets

Interchangeable C-Face and D-Flanges permit users to exchange brackets for application flexibility (2, 4 & 6 Pole), where applicable.

Lamination Material

With the capability to withstand 1,000°F, the motor core is less likely to be damaged in the event of a failure, offering a higher probability of successful repair and enabling repeated repairs with minimal reduction in core loss, extending the motor’s operational lifespan and reducing replacement costs.

Thermal Protection

Embedded 100 Ω platinum stator RTDs, two per phase terminated in an auxiliary box, help protect the motor’s insulation system from excessive heat and unsafe operation.

Drive Duty Compatibility 

The insulation meets NEMA MG1 Part 31 standards.  It can be paired with a UL-Listed Medium Voltage Drive, which features a motor-friendly multiphase neutral point clamped output.