Griswold^TM 811 Series Centrifugal Pumps With 17-Inch Impeller Ideal for Storage Terminal Applications

Grand Terrace, CA – Griswold^TM Pump Company, a leading manufacturer of ANSI, centrifugal, self-priming and submersible/vertical turbine pumps, recently announced that its 811 Series ANSI Centrifugal Pumps are now available with a 17-inch impeller. The addition of the 17-inch impeller makes the 811 Series ideal for high capacity transfer within large storage terminal operations.

In addition, the 811 ANSI Series pumps meet the needs of terminal operators because they feature open impellers with two times the wear area of a closed design, which optimizes the performance of the pump's open impeller and allows renewable performance. This open-impeller design feature also minimizes concentrated wear by balancing the hydraulic axial thrust load and reducing the stuffing-box pressure. This not only facilitates corrosive, abrasive, solid and stringy-fiber handling, but also simplifies maintenance, extends pump life and reduces repair costs.

Since casings of the 811 Series pumps can be constructed of a wide choice of materials, including ductile iron, 316 stainless steel, CD4MCu and alloy 20, they are able to meet a wide array of transfer applications found within storage terminal operations, such as petroleum, biofuels, chemicals and vegetable oils, to name a few. They are constructed through investment and no-bake casting processes to ensure smooth, precise, superior finished that guarantee consistent, reliable performance. Griswold also employs metallurgists to strictly supervise all heat-treating operations so that maximum corrosion-resistance for all alloys is ensured.

Other features of the 811ANSI Series are self-tightening impellers that reduce leaks and failures; the ability to externally adjust the clearance so that peak efficiency is ensured even after wear-area loss; back pump-out vanes that reduce pressure on the shaft seal and reduce thrust loads on the bearings; and investment-cast impellers that are ultra-smooth to guarantee hydraulic and mechanical balance, and maximized seal and bearing life.

For more information on the 811 Series ANSI Centrifugal Pumps from Griswold, please go to www.griswoldpump.com. Griswold is an operating company within Dover Corporation's Pump Solutions Group (PSG^TM). For more information on PSG, please go to www.pumpsg.com.

Griswold^TM Pump Company is a full-line pump manufacturer with product lines dating back more than 70 years. Included among its industry-leading pump lines are ANSI, end-suction centrifugal pumps, self-priming pumps and submersible/vertical turbines. These pump styles allow Griswold to serve a broad range of chemical process, industrial and municipal applications. Griswold Pump Company—headquartered in Grand Terrace, California, USA—is a member of Dover Corporation's Pump Solutions Group (PSG^TM).