CPXR Recessed Impeller ISO Chemical Process Pump
CPXR Recessed Impeller ISO Chemical Process Pump
| Brand: | IDP |
|---|---|
| Description: |
The Durco CPXR is an ISO-compliant chemical process pump equipped with a recessed impeller, purpose-built for low-shear pumping of friable solids and fibrous or stringy materials. Designed for handling slurries, sludge and other challenging fluids, the CPXR provides clog-free, gentle pumping performance in chemical, pulp and paper, food processing and wastewater applications. Its recessed impeller design minimizes product degradation while maintaining efficient hydraulic operation and robust reliability. |
The Durco CPXR Recessed Impeller pump provides low-shear pumping of friable solids and trouble-free pumping of stringy or fibrous slurries. Solids are drawn into the vortex of swirling liquid and discharged by centrifugal force through the open area in front of the impeller with little contact.
Key Features of the Durco CPXR Recessed Impeller Pump
• Recessed impeller slurry pump, low shear vortex design
Solids enter a vortex and are discharged by centrifugal force through the large open passage in front of the impeller, with minimal contact to preserve particle integrity.
• Advanced 45° conical seal chamber, longer seal life
Integral vortex flow modifiers keep solids away from the seal faces and help reduce heat generation.
• Non contacting labyrinth seals
Keep lubricant in and contaminants out for extended bearing housing life.
• Heavy duty bearings and shaft
Selected for reliability in abrasive, corrosive and upset conditions.
• ISO chemical process pump layout
Robust casing and process end designed for tough plant services.
CPXR Pump Applications
Waste Treatment, Water Treatment, Auxiliary Services (power), Chemical and Liquor (pulp and paper), Food Processing, Acid Transfer, Auxiliary (chemical), Caustic and Chlor-alkali, Pharmaceuticals, Polymers, Slurry Processing, Slurry Transfer (mining), Solvents, Volatile Organic Compounds, Waste Processing, Water Supply and Distribution (water), Agriculture
- Industries:
Water Resources, Chemical Processing, Pulp and Paper, Mining, Power Generation, General Industries - Standards:
ISO
Vortex Action allows only a fraction of the media to contact the impeller, minimizing abrasive wear and maintaining solids integrity.
Advanced 45° Conical Seal Chamber with integral vortex flow modifiers increases mechanical seal life.
Standard Non-Contacting Labyrinth Seals keep lubricant in and contaminants out.
Heavy-Duty Pump End and Drive End Bearings selected for long life and reliability.
Operating Parameters
- Flows to 750 m3/h (3300 gpm)
- Heads to 100 m (330 ft)
- Pressures to 25 bar (365 psi)
- Temperatures from -80C (-110F) to 350C (660F)
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All product-contact parts are made from 316L stainless steel.
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A semi-open impeller with special vane design ensures gentle yet efficient product flow.
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Heavy-duty casing and reinforced backplate withstand very high inlet pressures.
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Standard design includes an internal single mechanical shaft seal, with options for flushed seals.
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Front-loading seals reduce downtime by allowing replacement in minutes.
The balanced seal design minimizes risk of leakage during sudden pressure surges, ensuring reliable hygienic operation.
FAQ
Q1: What is a recessed impeller pump?
A recessed impeller pump uses a vortex-style impeller positioned away from the volute. This design allows solids and fibrous materials to pass through the casing with minimal contact, reducing wear, clogging, and product damage.
Q2: What are recessed impeller slurry pumps used for?
They are widely used in slurry transfer, wastewater, pulp and paper liquor, chemical slurries, mining, and food by-product processing, where clogging and shear-sensitive handling are critical concerns.
Q3: What makes the Durco CPXR different from standard centrifugal pumps?
The Durco CPXR ISO process pump has a recessed impeller and conical seal chamber, which protect seals and bearings, extend service life, and improve performance with fibrous or abrasive media.
Q4: Who supplies recessed impeller slurry pumps?
Durco (Flowserve) is one of the recognized suppliers of high-quality recessed impeller slurry pumps, with a global service and parts network.
Q5: Are recessed impeller pumps ISO chemical process pumps?
Yes. The CPXR is designed to ISO chemical process pump standards, making it suitable for chemical, petrochemical, and heavy industry applications.
CPX, CPXR, CPXN and CPXP Pump User Instructions
Pumping tough slurries or fibrous fluids? The CPXR pump handles solids gently and efficiently. Talk to us today to configure a CPXR solution that fits your specific process needs.