Product Description
Griswold 811 ANSI Series
The Griswold 811 ANSI Series is a complete range of ASME B73.1 horizontal end-suction centrifugal pumps for demanding industrial process applications. Moreover, more than 30 hydraulic selections allow users to handle different capacities, temperatures and process-fluid characteristics.
The range delivers flows up to 7,000 gpm or 1,590 m³/hr, heads up to 900 ft or 275 metres, and liquid temperatures up to 500°F or 260°C. Therefore, it supports chemical, petroleum, mining and general industrial duties.
ASME B73.1 Process-Pump Design
The pump range complies with ASME B73.1 dimensional requirements. Consequently, equivalent ANSI pumps can often be replaced without extensive changes to the connected piping or foundation.
The design uses a horizontal end-suction inlet, top discharge and overhung impeller. Moreover, certified testing is available according to Hydraulic Institute standards, while material certifications follow relevant ASTM requirements.
Key Benefits
The 811 ANSI process-pump range provides several practical advantages:
- Maximum flow up to 7,000 gpm
- Maximum head up to 900 ft
- Maximum liquid temperature up to 500°F
- More than 30 hydraulic selections
- Standard-flow and low-flow models
- ASME B73.1-compliant dimensions
- Fully open impeller
- External rear impeller adjustment
- Dynamically balanced impeller
- Heavy-duty shaft and bearings
- Extra-large oil sump
- Standard labyrinth bearing seals
- Multiple seal-chamber options
- Broad material selection
- Extensive component interchangeability
Together, these features enable the Griswold 811 ANSI Series to support demanding process duties while simplifying installation and maintenance.
Available Pump Materials
The pump range is available in:
- Ductile iron
- 316 stainless steel
- Alloy 20
- CD4MCuN duplex stainless steel
Therefore, users can select construction materials according to the fluid’s chemical composition, temperature and solids content.
For example, ductile iron may suit compatible general industrial liquids. In contrast, 316 stainless steel, Alloy 20 or CD4MCuN may provide improved resistance for selected corrosive services.
However, users must verify compatibility against the exact chemical concentration, temperature and operating conditions.
Fully Open Impeller
The Griswold 811 ANSI Series uses a fully open, dynamically balanced impeller. Consequently, the pump can handle many process liquids containing suspended solids or abrasive particles.
The impeller clearance can be adjusted externally from the rear of the pump. Therefore, technicians can restore hydraulic performance as normal wear occurs without dismantling the complete liquid end.
Moreover, a contained casing gasket helps reduce the risk of gasket movement or blowout during demanding operation.
Heavy-Duty Power Frame
The power frame uses a robust shaft and bearing arrangement designed for industrial process service. In addition, the extra-large epoxy-coated or powder-coated oil sump provides increased lubricant capacity.
An oversized sight glass simplifies oil-level inspection. Meanwhile, a magnetic drain plug helps collect metallic wear particles during operation.
As a result, maintenance teams can monitor bearing-frame condition more effectively and identify developing wear before it causes unplanned downtime.
Flexible Sealing Options
The process-pump range offers standard-bore, large-bore and tapered-bore seal chambers. Therefore, users can select a seal environment according to heat, solids, entrained air and vapour conditions.
Available sealing arrangements include:
- Cartridge mechanical seals
- Component mechanical seals
- Conventional packing
- Seal-flush and cooling plans
- Jacketed seal chambers
- Heat jackets
- Bearing-frame cooling options
Consequently, the pump can be configured for chemical, petroleum, pharmaceutical and general industrial services.
Parts Interchangeability
Many components within the Griswold 811 ANSI Series are interchangeable between equivalent pump sizes. These include shafts, bearing frames, adaptors, stuffing boxes, impellers and casings.
Moreover, relevant 811 components can interchange with many installed ANSI process pumps. Therefore, facilities may simplify spare-parts inventories and reduce maintenance costs.
Selected components also provide interchangeability with equivalent Goulds 3196 pumps and several key parts used in Goulds 3796 and 3996 models.
Griswold 811 ANSI Applications in India
The ANSI process-pump range may suit many industrial applications across India, including:
- Chemical-processing plants
- Oil and gas facilities
- Petroleum transfer
- Mining and mineral processing
- Fertiliser production
- Pharmaceutical manufacturing
- Industrial wastewater
- Corrosive-liquid transfer
- Abrasive slurry service
- General manufacturing
- Energy facilities
- Process-water systems
For example, a chemical plant can use an Alloy 20 or CD4MCuN configuration for a compatible corrosive liquid. Similarly, a mining facility can select an appropriate open-impeller model for abrasive process water.
Selecting the Correct Pump
Correct selection depends on:
- Required flow and total dynamic head
- Liquid composition and concentration
- Solids content and particle size
- Temperature and vapour pressure
- Available NPSH
- Pump speed
- Material compatibility
- Seal arrangement
- Motor power
- Operating duty
Therefore, users should select the Griswold 811 ANSI Series according to the complete system curve. Otherwise, incorrect sizing may cause cavitation, recirculation, vibration, inefficient operation or excessive component wear.
Why Choose This ANSI Process Pump?
The range combines broad hydraulic coverage with ASME-standard dimensions, heavy-duty construction and multiple material options.
Moreover, its open impeller, adjustable clearances and extensive component interchangeability support efficient maintenance and long-term operation.
Therefore, it is a strong choice for facilities across India that require reliable handling of corrosive, abrasive and high-temperature process fluids.
Product Enquiries in India
The Griswold 811 ANSI Series is presented through Pumps Bharat for chemical processing, petroleum handling, mining, fertiliser production, pharmaceuticals, industrial wastewater and general process applications across India.
When submitting an enquiry, please provide the required flow, total head, fluid composition, temperature, solids content, material preference and seal requirements. With this information, the available configurations can be evaluated against the application requirements.