Silicon Carbide Mechanical Shaft Seal (5HP Sta-Rite Pumps)

This is the highest-grade mechanical seal replacement for the Sta-Rite 5 HP centrifugal pumps operating in harsh reclaim water environments. Standard seals quickly degrade, but this premium seal features robust Silicon Carbide faces, which offer unmatched hardness and resistance to abrasion from the particulates and chemicals commonly found in reclaimed wash water.

Key features and benefits include:

• Premium Material Upgrade: Utilizes Silicon Carbide (L) for both the rotating washer and the stationary seat, providing superior resistance to wear, heat, and corrosive media compared to standard ceramic or carbon seals.
• Corrosion Resistance: Metal components, including the spring and housing, are constructed from Stainless Steel (F), ensuring maximum lifespan in wet environments. Elastomers are made from durable FKM/Viton (V) for excellent chemical compatibility.
• Critical Component: Essential for preventing pressurized water from leaking along the motor shaft and entering the pump motor, which would cause catastrophic failure.
• Sta-Rite Compatibility: A direct, high-performance replacement for the OEM Sta-Rite U9-451SS seal, designed for the 5 HP Reclaim Centrifugal High Head Pumps (Model DHJ3-170MS3).
• Shaft Size: Designed to fit precisely onto a 1-1/4" diameter shaft.