Product Description
Griswold 811CC Series
The Griswold 811CC Series is a compact, close-coupled centrifugal process-pump range based on the proven hydraulic design of Griswold’s 811 ANSI pumps. Unlike a conventional frame-mounted pump, the liquid end connects directly to a compatible motor. Consequently, the design reduces the installation footprint and removes the need for a separate power frame, coupling, coupling guard and rigid baseplate.
The range delivers flow rates up to 320 gpm or 72.7 m³/hr and heads up to 75 ft or 22.9 m. Therefore, it suits moderate-flow chemical, industrial-water and process-fluid applications.
Compact Close-Coupled Design
The close-coupled arrangement allows the Griswold 811CC Series to fit into restricted plant rooms, packaged skids and replacement installations. Moreover, fewer drive components can simplify installation and reduce alignment requirements.
Compatible NEMA JP motor frames create a short, compact pump package. As a result, designers can use the available space more efficiently while retaining access to piping, valves and maintenance areas.
Key Benefits
- Maximum flow up to 320 gpm
- Maximum head up to 75 ft
- Compact close-coupled construction
- ANSI-dimensional liquid end
- Direct replacement for many ANSI pumps
- Fully open impeller
- Keyed and bolted impeller connection
- Back pump-out vanes
- Replaceable shaft sleeve
- Multiple mechanical-seal options
- Ductile-iron construction
- 316 stainless-steel construction
- CD4MCuN construction
- Reduced number of installation components
Together, these features allow the Griswold 811CC Series to provide ANSI process-pump performance without the space requirements of a conventional frame-mounted arrangement.
ANSI Pump Replacement
The pump uses an ANSI-dimensional liquid end. Therefore, it can match the piping dimensions of many existing ANSI pump installations.
In suitable applications, installers can remove the old pump and install the Griswold 811CC Series without modifying the connected piping. Consequently, the project may require less downtime and lower installation costs.
Alternatively, users may retain a compatible ANSI casing and replace only the defective or oversized power end with the 811CC back pullout assembly.
Open Impeller for Process Fluids
The fully open impeller supports the handling of corrosive and erosive process liquids. Moreover, its broad wear surfaces help reduce concentrated wear.
Back pump-out vanes balance hydraulic axial thrust and reduce pressure around the stuffing-box area. As a result, the design can reduce loading on the mechanical seal and motor bearings.
In addition, the keyed and bolted impeller connection helps prevent loosening during high-temperature operation or accidental reverse rotation.
Available Materials
The Griswold 811CC Series is available in:
- Ductile iron
- 316 stainless steel
- CD4MCuN duplex stainless steel
Therefore, users can select a construction that matches the process fluid and operating environment.
For example, ductile iron may suit compatible general industrial liquids. In contrast, stainless steel or CD4MCuN may provide better corrosion resistance for more aggressive fluids.
However, users should confirm compatibility against the exact fluid concentration, temperature and contaminants.
Seal and Shaft Protection
Griswold offers several mechanical-seal options for different fluids and operating duties. Moreover, the renewable shaft sleeve protects the motor shaft from direct contact with the process liquid.
An O-ring also helps prevent corrosion from reaching the motor shaft. Consequently, maintenance teams can replace wear components without replacing the complete shaft.
Available Hydraulic Sizes
Published hydraulic sizes include:
- 1.5 × 1-6
- 3 × 1.5-6
- 3 × 2-6
- 1.5 × 1-8
- Low-flow 1.5 × 1-8
- 3 × 1.5-8
Selected models operate at approximately 1,800 or 3,600 rpm. Therefore, users can choose different flow and head combinations according to the required system duty.
Applications in the UAE
The Griswold 811CC Series may suit:
- Chemical-processing systems
- Industrial water treatment
- Process-fluid transfer
- Oil and gas support services
- General manufacturing
- Mining and mineral processing
- Corrosive-liquid transfer
- Packaged equipment skids
- Replacement of existing ANSI pumps
- Space-restricted installations
For example, a chemical plant can use a stainless-steel model for a compatible corrosive liquid. Similarly, an industrial facility can use the pump where a frame-mounted ANSI unit would occupy too much space.
Selecting the Correct Pump
Correct selection depends on:
- Required flow rate
- Total dynamic head
- Liquid properties and temperature
- Material compatibility
- Available NPSH
- Motor speed and power
- Mechanical-seal requirements
- Existing casing dimensions
- Installation environment
Therefore, users should select the pump from the complete system curve. Otherwise, incorrect sizing may cause cavitation, vibration, excessive wear or inefficient operation.
Why Choose the Griswold 811CC Series?
The Griswold 811CC Series combines a compact footprint with ANSI-dimensional process-pump flexibility. Moreover, its open impeller, replaceable wear components and multiple material options support demanding fluid-handling duties.
Therefore, it is a practical choice for UAE facilities requiring an economical ANSI replacement, straightforward maintenance and reduced installation space.
Request a Griswold 811CC Pump in the UAE
Contact our pump specialists for technical selection, specifications and UAE pricing.
Please provide the required flow, total dynamic head, liquid details, temperature, material preference, motor supply and existing pump dimensions. Consequently, our team can recommend the correct Griswold 811CC Series configuration.