Griswold Pumps
Griswold®, a PSG® brand under Dover Corporation, is a trusted global manufacturer of ANSI B73.1 centrifugal pumps and engineered baseplate systems for a broad range of industrial applications. With more than 70 years of proven performance, Griswold delivers precision-engineered pumping solutions that combine rugged reliability with ease of maintenance and long service life.
Griswold’s versatile pump lineup is designed to meet the rigorous demands of industries such as chemical processing, power generation, water and wastewater treatment, general manufacturing, mining, and more. Their flagship 811 ANSI Series is known for its robust construction and high interchangeability, while the 811SP offers reliable self-priming performance. The 811CC provides a compact footprint for tight spaces, the 850 Series offers exceptional versatility, and the H Series is ideal for high-head applications requiring efficiency and performance.
All Griswold pumps are manufactured in their state-of-the-art facility in Grand Terrace, California, where every product is supported by a Hydraulic Institute–certified test lab to ensure precision performance. Their manufacturing operations meet stringent ISO 9001 and ISO 14001 standards, and every pump is backed by a comprehensive five-year warranty—one of the strongest in the industry.
To support engineers, plant managers, and maintenance professionals, Griswold offers extensive technical resources including expert application support, intuitive online tools for pump selection and configuration, and ongoing educational content via the “Centrifugal Pump Minute” blog series. These initiatives reflect Griswold’s commitment to helping customers make informed decisions and maintain peak system performance.
Whether you need reliable chemical transfer, slurry movement, or clean water handling, Griswold delivers performance-driven solutions that stand the test of time.
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Griswold Pumps FAQ
What Griswold pump families are featured?
The range shown includes the 811 ANSI, 811SP self-priming, 811CC close-coupled, 850, and H Series. Compare model-specific curves and construction with your application.
What is an ANSI process pump used for?
ANSI process pumps are commonly considered for industrial liquid transfer and chemical service. A dimensional standard does not by itself establish chemical compatibility or suitability for a particular operating duty.
When should I consider the 811SP?
Consider a self-priming configuration when the installation requires suction lift. Review lift, piping, fluid properties, and the initial filling procedure before selecting the pump.
What is the advantage of a close-coupled arrangement?
It can reduce installation space and coupling-related components. Service access, motor requirements, and the particular pump's operating limits still need review.
Can Griswold pumps handle corrosive liquids?
A suitable configuration may. Provide the liquid composition, concentration, and temperature so wetted materials and the sealing arrangement can be checked.
Are replacement parts interchangeable with another brand?
Interchangeability must be verified for the specific model and part. Confirm dimensions, materials, clearances, and performance rather than relying on a general ANSI description.
How do I choose the right pump size?
Start with required flow and total head, then check the operating point against the pump curve. Horsepower or pipe size alone is not enough to select a pump.
Why is my pump running but delivering less flow?
Possible causes include suction restrictions, air entry, worn hydraulic components, incorrect rotation, or changed system resistance. Compare measured flow and pressures with the expected operating point.
What is cavitation, and why does it matter?
Cavitation occurs when local pressure falls low enough for vapor bubbles to form and then collapse. Review suction conditions, liquid temperature, and available inlet head when noise or performance changes appear.
What can cause excessive pump vibration?
Alignment, bearings, impeller condition, mounting, piping strain, and hydraulic conditions can all contribute. Record when vibration occurs so inspection can address the cause rather than just the symptom.
Why might a pump seal start leaking?
Dry running, unsuitable seal materials, poor flush conditions, shaft movement, or normal wear can cause leakage. Repeated failures warrant a review of the operating conditions and seal arrangement.
How often should this pump receive maintenance?
Use the model's instructions and service history to set intervals. Track operating hours, leakage, vibration, lubrication requirements, and performance changes rather than relying on a universal calendar schedule.
Should I rebuild the pump or replace it?
Compare inspection findings, parts availability, repair cost, downtime, and current duty requirements. Rebuilding is worth evaluating when the casing and major components remain suitable for the application.
Can a variable-speed drive reduce pumping costs?
It may help when demand varies and the system allows speed adjustment. Check minimum flow, motor suitability, control needs, and measured energy use before estimating savings.
How can I get local support for Griswold Pumps?
Contact Process & Power at (901) 362-5500 with your location, equipment identification, and application or service concern. The team can review selection, parts, and service options for your needs.
What should I send when requesting a quote?
Include the required duty, fluid or process details, operating conditions, utilities, and installation dimensions. For existing equipment, add nameplate photos, model and serial numbers, and a description of the problem or planned change.