Thanks to WORLD PUMPS for promoting our 800 Series Vertical Immersion Sump Pump

The Series 800 industrial vertical immersion sump pump from Vertiflo Pump Company can be used for sump drainage, flood control and process drainage to meet EPA and U.S. Occupational Safety and Health Administration (OSHA) requirements.

Designed for severe service at heads to 230 ft and temperatures to 350°F, the pump and operates in pit depths to 26 ft and up to 3,000 gpm.

Open impeller

The Vertiflo pump  includes carbon line shaft bearings, semi-open impeller with external adjustment, high-thrust angular contact ball bearing, 416 stainless steel shafts to 1 15/16 ins and a standard NEMA C face motor. Construction materials available are cast iron, 316 stainless steel or alloy 20.

http://www.worldpumps.com/…/vertiflo-vertical-immersion-su…/

#verticalpumps #sumppumps

Centrifugal pump selection guide 2

Centrifugal Pump Selection Guide, “How Pump Curves Assist in Selection,” by the Hydraulic Institute

HI Pumps FAQ, as published in June 2018 PUMPS & SYSTEMS Magazine

Q: How do I use the information on a pump curve to select a pump for my system?

A: A centrifugal pump selection guide curve (sometimes called a performance curve) is a graph that shows the total head, power, efficiency and net positive suction head (NPSH) where a 3 percent head loss occurs (NPSH3) plotted against rate of flow. These curves contain extremely important data that pump users need to analyze and interpret for proper pump selection and efficient operation. There are three main types of pump curves supplied by the pump manufacturer:

  • the selection chart shown in Image 1
  • the published curve shown in Image 2
  • the certified curve

Centrifugal pump selection guide 1

The certified curve is different from the selection chart and published curve because it is for the specific pump and impeller trim purchased and not the general product line. Often it will include the acceptance test standard and acceptance grade that the pump was tested against.

The selection chart shows the various pump sizes available for a given manufacturer’s pump line and speed. The desired head and flow rates are entered on the curve, and the pumps that overlap the area are valid choices to consider for selection. The selection chart is useful in developing a short list of pumps for consideration. For example, if the application called for a pump running at a nominal 1,800 revolutions per minute (rpm), that could provide 1,000 gallons per minute (gpm) at 100 feet of total head, the chart shows that 5 x 6 x 11 and 6 x 8 x 11 size pumps overlap on the selection chart and will likely be the two best sizes to evaluate further.

Centrifugal pump selection guide 2

Although the published curve may seem confusing, a lot of critical information can be extracted from this pump curve. If you understand the charts, you will benefit from the data they offer. Remember:

  • The Y axis (vertical) on this curve is the head in feet and meters, and the X axis (horizontal) is the capacity (flow rate) in m3/h and gpm.
  • Each downward sloping blue line is called a head capacity curve.
  • Each number above the head capacity curves to the right of the
    Y axis represent different impeller diameters. Total head is reduced when the impeller diameter is reduced.
  • The numbers in the circles above the topmost head capacity curve are the pump efficiency, and the lines stemming from these circles are lines of constant efficiency. The triangles that contain a number and word “NPSH” are constant lines of NPSH (in feet) that the system must supply for the pump to operate with a 3 percent head loss. NPSH margin above this value is required for the pump to operate at the published head.
  • The diagonal lines that run through the head capacity curves signify lines of constant pump input power.

Using the selection chart to narrow down the appropriate pump’s size for the duty point of 1,000 gpm and 100 feet of head, the manufacturer’s published curves can be referenced to help determine the best pump for an application. Image 1 shows the published curve for a 5 x 6 x 11 pump running at 1,770 rpm. Information can be derived from the manufacturer’s pump curve for this application, including the following:

  • The impeller diameter that meets the duty point falls between 10 and 10.5 inches.
  • The pump is 85 percent efficient at the rated point and 86 percent efficient at the best efficiency point (BEP).
  • At the rated point, the shaft power will be between 25 horsepower (hp) and 30 hp. To ensure a non­overloading condition at the end of the curve, a 40-hp motor may be required. NPSH3 is between 9 and 10 feet at the duty point.

Note that data displayed on a manufacturer’s pump curve is based on 68 F or 20 C water. If a liquid other than water will be pumped, information on the manufacturer’s published curve must be adjusted for the liquid density and viscosity, which affects the head, flow, efficiency and pump input power.

Centrifugal pump selection guide 3

HI Pump FAQs® is produced by the Hydraulic Institute as a service to pump users, contractors, distributors, reps and OEMs. For more information, visit pumps.org.

Horizontal Sump Pump

Keeping the Solids Out

Clogged pumps not only halt the flow of wastewater, they can also grind workflow to a halt while maintenance is performed. Using pumps that offer unrestricted flow can help keep things running smoothly. The designers of the Series 1600 industrial horizontal vortex sump pump from Vertiflo Pump Co. made the unit with the intent of keeping it in operation.

The pump’s fully recessed vortex impeller design provides an unrestricted flow since the impeller is not typically in contact with the solids being pumped. Applications for the pump include slurries, fragile food processing solids, pulpy solids, oils, pollution control and wastewater treatment. It can handle solids up to 4 inches in diameter.

“Pumping sewage, stringy product, light slurries and other soft solids is easily accomplished with the concentric volute design, offering unobstructed flow and smooth passage of the product being pumped,” says Bob Goldtrap, vice president of sales and marketing for Vertiflo Pump Co. “Pumping secondary biosolids in wastewater treatment facilities is an ideal application. It is easy and less costly to repair than competitive products.”

The Series 1600 offers heads to 170 feet, and it can operate in temperatures up to 250 degrees F with flows up to 1,600 gpm. Construction options include cast iron, 316 stainless steel fitted, all 316 stainless steel, Alloy 20 and CD4MC. The Model 1620 has a 0.875-inch shaft diameter with a 1.25-inch sleeve, while the Model 1626 has a 1.25-inch shaft diameter with a 1.625-inch sleeve. The unit is positively driven and gasketed, protecting the motor shaft from the liquid being pumped. Using any NEMA standard JP shaft motor, its standard JP shaft extension allows for easy interchangeability to packing standard mechanical seal or optional single or double mechanical seals of various designs and materials of construction. All pumps are designed with back pullout feature, which allows for the easy removal of all rotating components.

“That allows for easy inspection or service/maintenance without disturbing the piping to the pump, which is a cost-saving feature,” says Goldtrap.

All the unit’s suction and discharge openings are flanged for installation ease and integrity, while the impellers have wiping vanes that reduce axial loading and prevent dirt from entering the sealing area. Its vortex-type concentric design casing has an extra-heavy wall thickness for corrosion protection.

“Its durability and being able to pump 4-inch solids makes it a great fit in a wastewater plant,” says Goldtrap. “It’s been well-received in the industry.”

Horizontal End Suction Pump

Industrial Horizontal End Suction Pump is Easy to Install and Maintain

The Vertiflo 1400 Horizontal End Suction Pump is designed for process, pollution control, spray systems, deionized water, waste water, corrosive liquids and chemicals. Rugged heavy duty cast iron frame design incorporates integrally cast support and ribbed mounting feet which assure a solid, dependable pump installation and operation. One frame fits all pump sizes. The frame has a back pull-out design feature, which allows for easy inspection or service / maintenance without disturbing the piping to the pump. The pump has external impeller adjustment and the semi-open impeller design accommodates passage of solids or fines. All impellers have balance holes near the hub which reduce thrust load and pressure in the packing or seal area. Wiping vanes reduce axial loading and prevent dirt from entering the sealing area. Packing or various mechanical seal arrangements are available as standard options. The pump is offered in a variety of materials: Cast iron, 316 stainless steel fitted, all 316 stainless steel, or CD4MCu. Requirements for pumping clear and corrosive liquids can be satisfied with capacities ranging up to 3600 gallons per minute, heads of 275 Feet and temperatures of 250 degrees F.

Vertiflo Pump Company, 513/530-0888, Learn More.

Horizontal Centrifugal Pump

Horizontal Vortex Pump, Provides Unrestricted Flow, Impeller Not In Contact with Solids Being Pumped

Vertiflo Pump Company offers a rugged, dependable Series 1600 Industrial Horizontal Centrifugal Pump Vortex Sump for service in industrial and municipal applications. Fully recessed vortex impeller design provides an unrestricted flow since the impeller is not normally in contact with the solids being pumped. Industrial process applications include slurries, fragile food processing solids, pulpy solids, oils, pollution control and wastewater treatment. Solids handling up to 4” diameter spheres. 

The Series 1600 is designed for long life in severe services with heads to 170 feet, temperatures to 250° F with flows to 1600 GPM. Construction options include cast iron, 316 stainless steel fitted, all 316 stainless steel, Alloy 20 and CD4MC. Model 1620 has a 0.875” shaft diameter with 1.25” sleeve, Model 1626 has a 1.25” shaft diameter with a 1.625 diameter sleeve. Positively driven and gasketed, protecting motor shaft from liquid being pumped.

Use any NEMA Standard JP Shaft Motor, standard JP shaft extension allows for easy interchangability to packing, standard mechanical seal or optional single or double mechanical seals of various designs and materials of construction. All pumps are designed with back pull-out feature which allows for removal of all pump rotating components without disturbing the piping connections.

All suction and discharge openings are flanged for installation ease and integrity. All impellers have wiping vanes which reduce axial loading and prevent dirt from entering the sealing area. Impeller is keyed to shaft, and an impeller locking screw assures positive attachment. Vortex-type concentric design casing has extra heavy wall thick-ness for corrosion allowance. Three brackets fit all pump sizes.

All Vertiflo pumps are delivered fast, usually shipped in one-half the typical lead time. 

Vertiflo Pump Company, 513-530-0888, www.vertiflopump.com

Sewage Ejector Pump

Industrial Vertical Non-Clog Sewage and Waste Ejector Pumps with Heads to 100 feet

The Vertiflo Pump Company offers a rugged, dependable Model 700 industrial vertical non-clog sewage ejector pump for service in industrial wastes, sanitary wastes, process wastes and rendering wastes. The Model 700 is designed for long life in tough services with heads to 100 feet TDH and flows to 1500 GPM. 1.5 inch (Model 724) and 1.25 inch (Model 720) diameter shaft sizes are standard. The impeller is a fully enclosed two vane non-clog design with wiping vanes which reduce axial loading and prolong bearing life. Wiping vanes aid in keeping particles from behind impeller and pump bearing assembly. The impeller is secured to the shaft by taper fit with woodruff key/nut. There is a flanged discharge on all sizes. Designed specifically for solids handling, the 700 Series incorporates a long radius elbow, reducing friction loss and allowing smooth flow thru the discharge pipe.

The 700 Series has high-thrust angular contact ball bearing, external impeller adjustment and grease lubricated pump and line shaft bearings. Pump setting increments of 1′-0″ for sump depths up to 26′-0” are offered. The standard pump lower bearing assembly consists of a choker ring and two guide bearing bushings compatible with the liquid. The standard intermediate bearing assembly consists of two guide bearings compatible with the liquid and is standard when pump length exceeds 6 feet. Standard bronze bearings come with grease lubrication. Rubber or carbon graphite are optional.

Vertiflo Pump Company’s vertical, horizontal and self-priming pumps are delivered fast, usually in half the typical lead time!

Vertiflo pumps are designed for nonresidential applications and currently over 20,000 are operating successfully worldwide. Vertiflo is recognized as a quality manufacturer of dependable pumps, and continues to grow and encompass new applications in the pump industry.

Vertiflo Pump Company, Inc. was established in 1979 to design, sell and build packaged lift stations. Since 1981, Vertiflo has concentrated on manufacturing vertical process pumps, sump pumps, end suction pumps and self-priming pumps in cast iron, stainless steel and special alloys.

Vertiflo Pump Company, 513-530-0888, www.vertiflopump.com
Sewage Ejector Pump
Sewage Ejector Pump
Close Coupled Horizontal End Suction Pumps Ideal for Transfer of Water and Fertilizer Solutions

Close Coupled Horizontal End Suction Pumps Ideal for Transfer of Water and Fertilizer Solutions

The Vertiflo Pump Company offers a rugged, dependable Model 1312 Industrial, close-coupled, horizontal, end suction pump for service in general pumping, chemicals, wash systems, deionized water, process and OEM applications. This pump is especially useful for pumping liquid fertilizer from tank to tank and into transport delivery trucks. The Model 1312 is designed for long life in tough services with heads to 160 feet TDH and flows to 240 GPM. 1750 and 3500 RPM sizes are available. 

Back pull-out design construction allows rotating element to be easily removed, casing remains in piping. Casing may be rotated in 90° increments to accommodate various piping and discharge orientation options or requirements. The close-coupled design saves installation space. Suction and discharge connections are threaded NPT. 

Construction options include cast iron, 316 stainless steel fitted or all 316 stainless steel. Pump volute, impeller and mounting bracket are heavy cast metal. 

Model 1312 horizontal motor-mounted end suction pumps are designed for use with NEMA standard C-face electric motors. Standard size mechanical seal is a self-aligning design. Semi-open impeller with balance hub is secured to shaft by taper and threads. 

All Vertiflo pumps are delivered fast, usually shipped in one-half the typical lead time.

Vertiflo Pump Company, 513-530-0888, www.vertiflopump.com

Close Coupled Horizontal End Suction Pumps Ideal for Transfer of Water and Fertilizer Solutions
Close Coupled Horizontal End Suction Pumps Ideal for Transfer of Water and Fertilizer Solutions
Vortex-Vertical-Sump-Pump-Cut-A-Way

Vortex Vertical Sump Pump Design Provides Unrestricted Flow

Vertiflo Pump Company offers a rugged, dependable Series 900 Industrial Vertical Immersion Vortex Sump Pump for service in industrial and municipal applications. Vortex design provides an unrestricted flow since the impeller is not normally in contact with the solids being pumped. Applications include chemical slurries, fragile food processing solids, paper & pulpy solids, petroleum and oils, sewage, wastewater treatment, and textiles. Solids handling up to 4” diameter spheres. Designed for long life in severe services with heads to 170 feet, temperatures to 350° F, pit depths up to 26 feet deep with flows to 1600 GPM. Construction options include cast iron, 316 stainless steel fitted, all 316 stainless steel, Alloy 20 and CD4MC. All Vertiflo pumps are delivered fast, usually shipped in one-half the typical lead time. 

Vortex-Vertical-Sump-Pump-Cut-A-Way
Vortex Vertical Sump Pump design impeller is not normally in contact with the solids being pumped.
Vortex-Vertical-Sump-Pump
Vortex Vertical Sump Pump Design Provides Unrestricted Flow

Understanding the New DOE Pump System Testing Procedures

This is the first time the DOE has developed rules to determine the efficiency of pump systems.

by Thomas Lowery & Jack Creamer, from PUMPS & SYSTEMS

After many years of study, analysis and discussion, the U.S. Department of Energy (DOE) has released new rulemaking that defines a pump system efficiency test procedure, 10 CFR Parts 429 and 431 – Energy Conservation Program: Test Procedure for Pumps.

Energy conservation has been a focus for both the private and public sectors for years, but this is the first time the DOE has developed rules to determine the efficiency of pump systems.

Pumps represent more than 50 percent of all potential energy savings of motor-driven loads. Furthermore, energy costs associated with pumping applications represent approximately 40 percent of the total cost of ownership for the life of that pump.

Because pumps are a major consumer of electric energy, the DOE pump system guidelines have been the topic of discussion for several years. This is the first time that the government has taken steps to address energy usage in the previously unregulated pump industry.

This rule does not include information on any action that the DOE will take against inefficient systems; however, it lays the groundwork for future rules detailing efficiency level requirements and subsequent penalties for noncompliance. Many pump users remember the process that the DOE and the Environmental Protection Agency (EPA) underwent to develop minimum efficiency standards for electric motors nearly a decade ago and the resultant laws governing minimum allowable motor energy use as detailed in 10 CFR Part 31 of the 2010 Energy Conservation Standard for small electric motors.

The process started with the Energy Policy Act of 1992, which required that certain types of motors sold in the U.S. after October 1997 meet or exceed minimum efficiency standards.

Efficiency guidelines continued to expand with the Energy Independence and Security Act, setting the minimum efficiency for motors above 1 horsepower (hp) (signed in December 2007), followed by the DOE Small Motor Rule that set minimum efficiency requirements for certain electric motors between 0.25 and 3 hp in 2015.

Measuring Pump System Efficiency
Pump system efficiency typically has been measured only when a system is operating at 100 percent capacity (speed, flow and head pressure).

This full load and speed point of operation, while important, did not represent where most installed pump systems ran for long periods of time. Even if throttle valves or other mechanical bypass means were used to vary system flow and pressure, the overall system rarely ran at 100 percent capacity.

This new efficiency test procedure requires that measurements be taken at different key load points, gauging the system’s efficiency at varying loads to provide a more holistic understanding of the pump system’s overall energy use.

Addressing Pump System Efficiency
This rulemaking will be applied to new pump systems and will not mandate any updates to installed pumps. The regulations underscore the importance of energy efficiency for all pumping systems across all industries—both to reduce environmental impact and to improve the bottom line.

Schneider-Electric-table-for-0616
Table 1. Load profiles based on pump configurationTable 1. Load profiles based on pump configuration

Fortunately, most pumping systems can be adapted to increase system efficiencies without incurring high installation costs associated with replacing mechanical equipment.

Technologies designed to increase process efficiency and provide detailed information on energy use have been evolving. One such technology is modern variable frequency drives (VFDs), devices designed to electronically vary a motor’s speed to match demand within a given process. VFDs have become an important contributor to overall pump system efficiency gains without sacrificing system performance.

Schneider-Electric-graph-for-0616
Figure 1. For energy savings opportunities on motor-driven loads, pumping applications account for slightly more than 50 percent of all savings.Figure 1. For energy savings opportunities on motor-driven loads, pumping applications account for slightly more than 50 percent of all savings. (Courtesy of Schneider Electric)

In addition to the motor control functions, VFDs can offer greater insight into the level of efficiency for their respective processes. With that knowledge, the process owner can make changes to run the system more efficiently.

Contributing to the Guidelines

As with the majority of federal guidelines, this rule was developed through years of study and with the input of independent industry groups. The Air-Conditioning, Heating and Refrigeration Institute (AHRI) is one group prominently referenced in the legislation. This rule comes on the heels of that organization’s recently published VFD standard, AHRI Standard 1210 (IP) and 1211 (SI) Performance Rating of Variable Frequency Drives, which addresses system efficiency by focusing on the drives.

By adding a VFD, it is possible to reduce a pumping system’s electrical consumption by at least 30 percent. However, it was difficult to understand which drives provide greater process efficiency.

The AHRI standard represented the first independent, nationally recognized performance standard in the industry for VFDs, allowing users and consulting engineers to better specify VFDs based on published performance data verified by credible third-party testing. To achieve the Standard 1210/1211 Certification, manufacturers must complete a detailed process, including independent testing of three VFD measurements:

  1. Combination drive/motor efficiency at defined speed and load points
  2. Total harmonic current distortion at drive input terminals
  3. The rate of voltage change over time (Dv/Dt) of drive output waveform measured at motor input terminals with 6-, 15- and 30-meter cable lengths

The first of these three criteria seeks to reach the same goals as the new DOE testing method—measuring efficiency at different defined load points. This is a critical point because the DOE guideline states that “AHRI 1210–2011 specifies appropriate power supply tolerances so that both pump manufacturers and DOE enforcement testing can be confident with the establishment and verification of ratings of VFDs sold with pumps.” This means that, when the DOE begins to require system efficiency verification, those with AHRI-certified VFDs in their systems will be able to reference the independently verified AHRI data from the certification process to show that their systems meet the DOE requirements.

The option available for those not using AHRI-certified systems is to test and verify compliance using the new method of test, which can be costly, time-consuming and cumbersome for multiple sizes and types of each component: the VFD, motor and pump.

References
ASHRAE Journal, Feb. 2016; p.58-59

New Base Mounted Low Flow Horizontal Centrifugal Pump

Vertiflo 1400LF Low Flow Horizontal Pump
Vertiflo 1400LF Low Flow Horizontal Pump

Vertiflo Pump Company’s Model 1400LF “Low Flow” is used for a wide range of applications including boiler feed, condensate, chemical process, washdown and spray washers. Capacities to 50 GPM, heads to 345 feet TDH, and temperature to 250˚ F. Back pull-out construction allows for easy inspection or service/ maintenance without disturbing the piping to the pump, an important cost-saving feature. Radial vane impeller has external impeller adjustment. Packing or various mechanical seal arrangements are available as standard options. Construction material selection includes ductile iron, bronze fitted, 316 stainless steel fitted and all 316 stainless steel.

Horizontal base-mounted end suction pumps are designed for use with any T or U-frame motor, or with virtually any type of drive, also available as a vertical wet pit pump.

Vertiflo Pump Company, 513-530-0888, www.vertiflopump.com