Shaft Seal, AS-1521, 3/4″ Shaft, Buna-N, PS-201 | AS-1521

3/4″ Buna-N PS-201 Shaft Seal | Model AS-1521

Product Overview

We supply this professional-grade shaft seal featuring Buna-N elastomer construction for 3/4″ pump shafts. This seal is engineered to PS-201 specifications, providing reliable sealing performance in demanding pool and spa applications.

Key Features and Benefits

• Precision 3/4″ shaft design
• High-quality Buna-N elastomer
• PS-201 performance standard
• Enhanced spring assembly
• Improved seal geometry
• Optimized wear resistance
• Professional-grade construction

Technical Specifications

Specification	Detail
Model	AS-1521
Standard	PS-201
Shaft Size	3/4 inch
Elastomer Type	Buna-N
Face Materials	Carbon/Ceramic
Spring Material	Stainless Steel
Maximum Temperature	225°F (107°C)
Maximum Pressure	150 PSI
Rotation	Bi-directional
Design Type	Medium Duty

🔧 Parts and fittings for this

Installation and Maintenance

Professional installation ensures optimal performance. The ceramic seat must be installed with uniform pressure, and both sealing faces must be thoroughly cleaned before assembly. Proper shaft preparation and alignment are essential for maximum seal life.

Compatibility

Engineered for use with:

• 3/4″ pump shafts
• Standard pump configurations
• Medium-duty applications
• Common pool equipment

Performance Features

Designed to deliver:

• Reliable sealing force
• Good chemical resistance
• Enhanced durability
• Consistent performance
• Extended service life
• Smooth operation

Note: Always verify shaft dimensions and seal compatibility with your specific pump model before installation