By Speck Pumps
Model # NB715-1020F-000
Speck Normblock Multi Series 20 HP Commercial Pool Pump
Model # NB715-1020F-000
Alternate Part # SPUNB7151020F000
Heavy-Duty Performance with Superior Corrosion Resistance
The Speck Normblock Multi 20 HP sets the standard for durability, efficiency, and quiet operation in high-demand commercial applications. Built from high-performance plastic (THK) that resists corrosion without coatings, this pump thrives in saltwater environments up to high salt concentrations—making it ideal for aquatic facilities, water parks, fountains, aquaculture, and large commercial pools.
Key Features
✅ Corrosion-Proof THK Plastic Housing – No coatings, built for harsh chemical and saltwater conditions.
✅ 1750 RPM Slow-Run Motor – Reduces vibration, extends lifespan, and operates quietly.
✅ Energy-Efficient TEFC Motor – Class F insulation, IP55 rating, and maintenance-free sealed bearings.
✅ Stainless Steel Shaft Extension – Adds strength and resists corrosion.
✅ Motor Swap Without Seal Replacement – Shaft coupling allows quick service without disturbing the mechanical seal.
✅ Durable Mechanical Seal – Carbon/SIC–EPDM standard; special application seals available.
✅ Optional All-Plastic Strainer Tank – For horizontal flooded suction setups.
✅ Fully Factory Tested – Meets both factory and customer specifications before shipping.
Specifications
Horsepower: 20 HP
Motor Speed: 1750 RPM
Voltage: 208-230V / 460V, 3-Phase
Motor Enclosure: TEFC, IP55 Rated
Housing Material: High-Performance THK Plastic
Seal Type: Carbon/SIC – EPDM
Suction Port: 6" ANSI Flange (sold separately)
Discharge Port: 4" ANSI Flange (sold separately)
Certifications: NSF 50
Ideal Applications
Commercial pools & spas
High-rate sand filtration
Water parks & fountains
Aquaculture & fisheries
Saltwater environments with elevated concentrations
⚠ Important: Must be installed by a qualified technician to maintain warranty coverage.