Price Pump HP75CN CPVC Centrifugal Pump Head Only — Built for Chemical Environments That Demand More
If you need a reliable, chemically resistant pump head that mounts directly to a standard NEMA 56J motor without the bulk and cost of a complete pump unit, the Price Pump HP75CN is exactly what you're looking for. This is the head-only version of Price Pump's well-regarded HP75 series — engineered for industrial and commercial applications where corrosive liquids, aggressive chemicals, or treated water are part of the everyday workflow. The all-CPVC construction on both the volute and impeller means metal corrosion simply isn't a concern, making it a go-to choice for chemical processing facilities, water treatment operations, chillers, and booster systems.
What sets the HP75CN apart is how well it balances compact design with genuine performance. It delivers flows up to 20 GPM and heads up to 160 feet with the CPVC impeller — a solid output for its size class. The 3/4" FNPT suction and discharge ports, combined with a maximum impeller diameter of 6.00 inches and a single 5/8" Type 6 Buna mechanical seal with carbon-versus-ceramic faces, give this pump head a dependable and well-tested foundation. Whether you're replacing an existing head on a working motor or building out a new system around a 56J frame, the HP75CN offers a clean, efficient solution that gets the job done.
Key Features
- CPVC volute and CPVC impeller construction for broad chemical compatibility
- Designed for NEMA 56J footless motor frame — head only, motor sold separately
- Single 5/8" Type 6 Buna mechanical seal, carbon vs. ceramic faces; additional seal options available
- End bell gasket design isolates the cast iron motor bracket from liquid contact
- Cast iron bracket with 18-8 stainless steel fasteners and EPR bell gasket standard
- Compact, close-coupled design for space-efficient installations
Applications
- Chemical processing and acid transfer
- Water purification and treatment systems
- Chillers and liquid cooling systems
- Booster pump applications
- Circulation and filtration systems
- Air conditioning and heat recovery
- Industrial wash-down and fluid transfer
- Electronics manufacturing and photo processing support systems
Specifications
- Model: HP75CN
- Volute Material: CPVC
- Impeller Material: CPVC
- Maximum Impeller Diameter: 6.00"
- Suction Port: 3/4" FNPT
- Discharge Port: 3/4" FNPT
- Maximum Flow (CPVC Impeller): 20 GPM (4.5 m³/hr)
- Maximum Head: 160 feet (49 meters)
- Mechanical Seal: Single, 5/8" Type 6 Buna, Carbon vs. Ceramic
- Bracket Material: Cast Iron (Bronze optional)
- Bell Gasket: EPR (Viton optional)
- Fasteners: 18-8 Stainless Steel
- Maximum Working Pressure: 75 PSI (Type 6 seal) / 150 PSI (Type 21 or Type 2106 seal)
- Maximum Temperature: 160°F
- Minimum Recommended Flow: 1/2 GPM
- Maximum Solid Size: 0.03"
- Motor Frame Compatibility: NEMA 56J
- Configuration: Head Only / Pump End Only
Frequently Asked Questions
Q: Does the HP75CN come with a motor, or is it a pump end only?
This listing is for the pump head only. The HP75CN is designed to mount directly onto a standard NEMA 56J footless motor frame, which must be sourced separately. This makes it ideal for retrofitting an existing motor or specifying a motor to match your exact voltage and enclosure requirements.
Q: What types of chemicals is the CPVC construction compatible with?
CPVC offers resistance to a wide range of acids, bases, salts, and oxidizing chemicals at moderate temperatures. It is commonly used in chemical processing, water treatment, and industrial fluid handling. For aggressive solvents or applications above 160°F.
Q: Can the mechanical seal be upgraded or changed?
Yes. While the standard configuration includes a single 5/8" Type 6 Buna seal with carbon vs. ceramic faces, additional seal options are available from Price Pump for applications requiring different elastomers or face materials.
Q: Is the impeller diameter fixed at 6 inches, or can it be trimmed?
The HP75CN accommodates a maximum impeller diameter of 6.00 inches. Trimmed impeller options are available through Price Pump and their authorized distributors, allowing the pump curve to be adjusted to match specific system head and flow requirements.
Q: What is the end bell gasket design, and why does it matter?
The end bell gasket design places a gasket seal between the pump volute and the motor bracket, keeping the cast iron bracket fully isolated from the pumped liquid. This reduces corrosion risk and extends service life — particularly important in chemical processing and water treatment environments where metal contact with the process fluid is undesirable.
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