Nuvonic

PureLine D
Also available in our Food & Beverage product range…
PureLine DC+DCD
Dechlorination and Chlorine Dioxide removal
PureLine DO
Ozone removal and treatment 
PureLine PQ 
3rd party bioassayed systems for critical treatment or as a pathogen barrier 
PureLine S 
Sugar syrup treatment

UV TREATMENT FOR FOOD AND BEVERAGE

Our PureLine D PH systems are aimed specifically at providing UV treatment for product and process waters used in the food and beverage industry.

By using a UV system you will eliminate harmful micro-organisms, reduce the bio-burden, protect against bio-fouling, lead to fewer CIP/SIP cycles and lower operating costs. Each system comes with a UV sensor to measure the active output of the UV system and make it easy to monitor and log performance. 

Potential Locations of the PureLine D PH™

Key Features

Intelligence 

  • UV intensity sensor measuring active wavelengths.

Optimization 

  • UV Water treatment.
  • Designed for the food and beverage industry. 

Integration 

  • Compact Design 
Benefits For You

Intelligence

  • Easy to monitor and log system performance. 

Optimization 

  • Does not affect taste and color of final product
  • No chemicals.
  • Industry compliant materials.
  • Sanitary Design.
  • Self-Cleaning.

Integration 

  • Easy integration.
What It Gives You

Intelligence 

  • Continuous verification of performance with in-built low intensity alarm.

Optimization

  • Protect your process waters from microbiological contamination including chlorine resistant Cryptosporidium and Giardia.
  •  FDA-approved materials used for all wetted parts.
  • Chamber with tri-clamp connections and < 0.38 µm internal finish.
  • *Automatic wiper (quartz cleaning).

Integration 

  • Can be fitted to skids.
  • Can be retrofitted to existing process.

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

 

Coriolis Flowmeter 101

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Flowmeters play a vital role in sanitary processing. They are used to measure incoming raw materials, incoming water supply, CIP solutions, ingredients in your formulation, final product production and even waste water leaving the plant.
Considering their use in critical applications, ensuring that you are using the right type of meter with the correct level of accuracy for your application can be the difference in the quality of your product and save you thousands of dollars in lost revenue or profit. In sanitary processing, one will typically find mechanical flowmeters (Positive Displacement, Turbine), electromagnetic and Coriolis flowmeters.

Coriolis Mass Flowmeter

The effect of a merry-go-round on balance is achieved through flowmeters with a split coil design, which measure the time delay between two sine waves, directly proportional to mass flow rate.

PROS
  • Used in critical and challenging applications.
  • Handles low to high flow rates with high accuracy.
  • Reliable, minimal calibration requirements, low maintenance costs.
  • Fluid density doesn’t impact flow measurement.

A Coriolis mass flowmeter operates on motion mechanics principles, using a vibrating tube to measure fluid flow. As fluid moves through, it accelerates towards peak amplitude vibration, while decelerating fluid moves away, causing a twisting reaction.

 

CONS
  • Higher initial cost than other flowmeters.
  • Considers pressure drop, especially for high viscosity fluids.

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

ExiFlo

Major Impact
  • Does not require disconnection and invasive inspection.
  • Able to be installed retrospectively to existing lines with different types of heat exchangers or tanks.
  • Utilizes process water, resulting in no contamination or post-test cleaning.
  • Qualification of leaks.
Medium Impact
  • On demand testing carried out on an automated or manual process at start of each shift or batch.
  • Tests are carried out in-situ and under operational conditions without requiring a high-pressure differential.
  • Data available in real time remotely or at the module.
  • Automated operation with no advanced training required.
Additional Impact
  • Significantly shorter and reliable testing eliminating downtime.
  • Mitigates false readings due to liquid test media.
  • More accurate pressure testing tolerance.
Read More

ExiFlo is an innovative retrofit hardware device which monitors and tests the integrity of any close liquid or gas system in service within heat exchange systems. ExiFlo is able to identify leaks across the boundaries and into the outside environment without the need to take the system off-line. Furthermore, these tests are quickly carried out before and after each production cycle, to ensure that each product batch receives a pass or fail certification before leaving for distribution.

ExiFlo minimises risk of contamination from cross-channel flow, which can lead to unplanned and costly downtime, reduction in efficiency, contamination of utility systems and product recalls that are highly damaging to brand reputation. In this manner, ExiFlo maximises your brand’s compliance.

Click to Watch A Video for More Information

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

Compound Planetary Inline Spiral Bevel (SBT)

Compound Planetary Inline Spiral Bevel (SBT) gearmotors combine our Inline Planetary (IL) and Spiral Bevel (SB) gear reducers to offer a greater variety of speed reduction than either gearbox alone. Compact and highly efficient, SBT gear motors are ideal for high ratio, high power applications

Compact and highly efficient. The IL gear reducer mounts directly off the motor shaft. The IL shaft then feeds into the SB gear reducer housed in a unique tubular casing. The tubular housing features smooth, easily cleanable surfaces. (SBT) gearmotor with a 5HP HAZARDOUS LOCATION (XP) Our patented Hazardous Duty/Explosion Proof (XP) motors are ideally suited for processing applications requiring strict sanitation and washdown tolerance in combination with safety concerns arising from hazardous liquids, vapors and or dust.

 

Special Features

• Sanifan Technology

• Positive Pressure Lubrication System

• Compact Design

• Solid or Hollow-Bore Shafts

• Vertical or Horizontal Orientation

• Output Shaft at Right Angle to Input Shaft

• O-Ring Sealed Sanitary Shaft Cover

When To Use

• High efficiency, quiet operation,
  right angle drive, low overhead room

• Available Output RPM: 9 through 200

• Available Power: 5 HP through 40 HP

Combining our Sanifan Technology motor, an IL series planetary reducer, and spiral bevel final output stage yields an exceptionally sanitary and efficient package. The SBT tubular housing features smooth, easily cleanable surfaces and can be supplied as flange mounted, face mounted or foot mounted. Large bore hollow shafts are easily accommodated, making these ideal for “piggyback” scraper/agitator mixer drives. An internal oil pump assures proper bearing lubrication in any orientation, at any speed. The pump is bi-directional, meaning proper performance is assured regardless of output rotation direction and is maintenance free.

These units make excellent retrofit candidates for existing unsanitary cast iron gearmotor drives and SMI engineers will partner with you to ensure a “drop on” retrofit success.

The IL gear reducer mounts directly off of the motor shaft. The IL shaft then feeds into the SB gear reducer housed in a unique tubular casing. The tubular housing features smooth, easily cleanable surfaces and is often equipped with a flange or C-face mounting.

The SBT output shaft is at right angle to the motor shaft and is available as solid or hollow bore with either a vertical or horizontal orientation. SBT units are made to order allowing OEMs and end users to specify a particular mounting configuration for the best possible integration with new or existing equipment.

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

SPX Flow Preventative Maintenance Checklist

Implementation of preventive maintenance plan keeps SPX FLOW products running at optimal levels and protects your product investment. Use the below checklist to figure out when it is time for regular product inspections and part replacements using SPX Flow products spares to extend your products lifecycle. 

Oil/Lubrication

Check for damaged rear oil

Possible Causes

  • Seal may be old and worn
  • No grease on lips to lubricate
  • Shaft worn under seals
  • Not centered on shaft when installed 

Possible Solutions 

  • Replace seals 
  • Properly lubricate with grease when installing 
  • Inspect shaft surface under seals 

MAINTENANCE FREQUENCY: EVERY 3 MONTHS

Check for Leaks-Flush fluid

Possible Causes

  • Damaged seal, fitting or flush tube
  • Damaged flush-side seal components, damaged elastomers

Possible Solutions 

  • Replace seal, fitting or flush tube 
  • Replace flush-side seal components 
  • Replace elastomers 

MAINTENANCE FREQUENCY: WEEKLY 

Check Front Grease Seals

Possible Causes

  • Seal may be deteriorated or worn
  • Shaft worn under seals, or no grease on lips to lubricate

Possible Solutions 

  • Replace seals 
  • Properly lubricate with grease when installing 
  • Inspect shaft surface under seals 

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Check for Leaks Product

Possible Causes

  • Damaged seals or elastomers

Possible Solutions 

  • Replace seals or elastomers 

MAINTENANCE FREQUENCY: WEEKLY

Check oil level, for contaminants and for leaks (if applicable)

Possible Causes

  • Oil leak from gear case cover, oil seal or gear case rear oil seal
  • Loose back cover, Oil plug damaged

Possible Solutions 

  • Replace oil seals 
  • Check or replace oil plug 

MAINTENANCE FREQUENCY: WEEKLY

Check for excess grease in clean-out plugs

Possible Causes

  • Excess grease accumulates with normal operation

Possible Solutions 

  • Remove excess grease from clean-out plugs 

MAINTENANCE FREQUENCY: MONTHLY

Check for sharp edged shaft shoulder

Possible Causes

  • Loose rotor nut(s)
  • Belleville-style washer(s) on backwards
  • Rotors slammed against shoulder when installed
  • Backface clearances not even

Possible Solutions 

  • Torque rotor nut(s) properly
  • Install Belleville-style washer(s) correctly
  • Remove sharp edge with file to prevent cutting shaft o-ring
  • Verify backface clearances are even

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Check for worn rotor hub end or shaft shoulder

Possible Causes

  • Loose rotor nut(s)
  • Belleville-style washer(s) on backwards
  • Rotors slammed against shoulder when installed

Possible Solutions 

  • Torque rotor nut(s)
  • Install Belleville-style washer(s) correctly
  • Replace rotors and shafts or shim front bearing(s) to maintain proper backface clearances

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Check for worn/damaged rotor or shaft keyway(s) or key(s)

Possible Causes

  • Loose rotor nut(s)
  • Belleville-style washer(s) on backwards

Possible Solutions 

  • Replace rotors, shafts and keys
  • Torque rotor nut(s)
  • Install Belleville-style washer(s) correctly

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Check for rotor tip to rotor tip contact or uneven rotor tip to rotor tip clearance

Possible Causes

  • Hard object jammed into rotors and twisted shafts

Possible Solutions 

  • Replace shafts 
  • Install strainers if necessary 
  • Check and replace gears if necessary 

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Check for rotor tip to rotor hub contact

Possible Causes

  • Loose rotor nut(s)
  • Belleville-style washer(s) on backwards
  • Back face clearances not even
  • Bearings need replacing

Possible Solutions 

  • Torque rotor nut(s) properly
  • Install Belleville-style washer(s) correctly
  • Verify backface clearances are even
  • Check and replace bearings

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Inspect for Gear backlash

Possible Causes

  • Lack of lubrication
  • Excessive hydraulic loads
  • Loose gear locknuts

Possible Solutions 

  • Check lubrication level and frequency
  • Reduce hydraulic loads
  • Torque locknuts to specified torque valves
  • Check and replace gears if necessary

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Inspect bearings, axially or radially movement

Possible Causes

  • Lack of lubrication
  • Excessive hydraulic loads
  • Product of water contamination

Possible Solutions 

  • Check lubrication level and frequency
  • Reduce hydraulic loads
  • Ensure no excess grease build-up
  • Replace bearings If necessary

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Inspect gears for worn or broken teeth

Possible Causes

  • Lack of lubrication
  • Excessive hydraulic loads
  • Loose gear locknuts

Possible Solutions 

  • Check lubrication level and frequency
  • Reduce hydraulic loads
  • Torque lockouts to specified torque valves
  • Check and replace gears if necessary

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Inspect for loose gears

Possible Causes

  • Gear locknuts not tongued properly
  • Locking assembly not torqued properly
  • Worn gear key

Possible Solutions 

  • Torque gear nut to specified toque value
  • Check and replace gears if necessary
  • Inspect gear keys, shaft keyway and shaft, replace If necessary

MAINTENANCE FREQUENCY: EVERY 3 MONTHS 

Pump Remanufacture Program 

The Remanufacture Program will restore your Universal series pumps* to new pump status as many times as possible. Regardless of condition, pumps will be remanufactured TWICE GUARANTEED.

Factory Warranty 

You get a NEW Full-Year Warranty along with the same quality, performance-tested, rugged reliability you’ve come to expect from Waukesha Cherry-Burrell.

Pump Exchange 

Our convenient Pump Exchange Policy allows you to receive your newly remanufactured pump prior to returning your worn unit resulting in NO DOWNTIME.

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

Mixing Basics 101

In basic terms, mixing is simply defined as blending two or more materials into one single product.  The individual components, each with their distinct properties (composition, temperature, density, etc) are considered “mixed” when the final product reaches the maximum state of uniformity and all individual differences (temperature, density, etc) have been eliminated.     Mixing is a critical process because the quality of the final product and its attributes are derived by the quality of the mix. Improper mixing results in a non-homogenous product that lacks consistency with respect to desired attributes like chemical composition, color, texture, flavor, reactivity, and particle size.

How a Mixer Works

The principal behind a mixer is to provide an adequate amount of power to mix the products efficiently.   The motor is the driving force that provides the power to drive and turn the shaft.  The bearing frame provides support for the motor, coupling and shaft.  In sanitary processing applications, the motor, housings and shaft are typically made of 316L stainless.  This provides greater corrosion resistance and allows for complete wash-down during cleaning.

At the end of the shaft is the impeller or rotor.  To increase mixing and pumping in a tank, several impellers may be arranged on a single shaft.  The combination of the speed of the shaft rotation and the orientation and type of blade pumps the liquid to provide mixing or flow of the product.

Impellers are classified into two types, axial and radial, depending on the angle that the impeller (also known as agitator) blade makes with the plane of impeller rotation.  All impellers produce both fluid velocity and fluid shear, but different types of impellers produce different degrees of flow and turbulence.

Shear

Shear is a mechanical force that deforms or cuts a material between two blades.   The term ‘Velocity head’ is interchangeable with shear in mixing terms. A high-shear mixer can be used to create emulsions, suspensions or dissolve granular products.  They are commonly used for powders that tend to float on water, form “fish eyes”, or granules that require particle size reduction.

A rotor/stator mixer is a common high-shear mixer used in sanitary processing.  The rotor is a rotating impeller that rotates at a high speed to move the product from the inside to the outside through the stator.  The stator is the stationary cage or shell with very close clearance to the rotor.  A high-shear area is formed as the product is forced through the small clearances between the rotor and stator.  This action reduces particle size and increases surface area for better wetting and/or dispersion.

Static mixers are not commonly found in sanitary processing but offer a low-energy mixing alternative for liquids that are easily miscible.  It is used for continuous processing applications in which a tube or housing is fitted with baffles.   The baffles may be constructed of stainless steel, Teflon®, PVC or other material.

As the product streams move through the tube, the baffles create a turbulent flow pattern.   These mixers provide a uniform mixing option that is quick, economical and has no moving parts.

Impellers are classified into two types, axial and radial, depending on the angle that the impeller (also known as agitator) blade makes with the plane of impeller rotation.  All impellers produce both fluid velocity and fluid shear, but different types of impellers produce different degrees of flow and turbulence.

  • Axial Flow Impellers:The impeller blade makes an angle of less than 90° with the plane of impeller rotation. As a result the locus of flow occurs along the axis of the impeller (parallel to the impeller shaft) – e.g.: Marine Propellers, Pitched Blade Turbine

 

  • Radial Flow Impellers:The impeller blade in radial flow impellers is parallel to the axis of the impeller. The flow draws from above and below the impeller and discharges it toward the tank wall (perpendicular to the impeller shaft) – e.g.: Flat Blade Turbine, Paddle, Anchor

 

 

Baffles: Long strips or flat blades attached to the inside tank wall either directly or on tabs.  Baffles create turbulence and reduce vortexing or swirling.  Baffles are recommended within tanks or kettles where the material is water-like or has a viscosity less than 500 cps.

Without baffles, a center vortex can form in the tank, and as a result, the liquid simply rotates around the vessel with very poor mixing between adjacent fluid levels.  Swirling is not mixing.  A vortex is normally not desired as it can increase the amount of air entrapped in the fluid.

In a situation where solids or powders must be mixed into a fluid, full baffles are not recommended.

What are the Benefits of Pump Repair Training?

A pump is simply defined as a device that raises, transfers, delivers, or compresses fluids or that attenuates gases especially by suction or pressure or both. Pressure, friction and flow are three important characteristics of a pump system. Pressure is the driving force responsible for the movement of the fluid. Friction is the force that slows down fluid particles. Flow rate is the amount of volume that is displaced per unit time. Pumps are typically classified by the way they move fluids. For the sanitary industry, we will only focus on positive displacement pumps and centrifugal (or rotodynamic) pumps. Positive displacement pumps include single and double rotary lobe pumps and diaphragm pumps.

Pump Rebuild

Pump rebuilds can be performed by M.G. Newell in any of our 3 locations – Greensboro, Louisville or Nashville. As a SPX Certified Repair Center, M.G. Newell has qualified factory service technicians on staff with over 30 years of experience. We have invested in equipment, inventory and training to become one of a select group of distributors that are approved.

In a rebuild, we pull the shafts, replace the bearings and all wear items. Depending on the amount of wear, we also replace the rotors. Our shop will perform an evaluation of the pump and provide you with an estimate to rebuild your pump. The cost of a rebuild is approximately 50% of the cost of a new pump. The only drawback to a pump rebuild is a slight loss in its original efficiency.

Pump remanufacture is performed by SPX Flow at their factory. In this program, they only reuse four parts: the SS cover, body, gear case and gear cover. The remaining components (see photo) are completely replaced with new, original equipment parts manufactured to factory specifications. They bore the existing body and make new oversized rotors. This machining is the main difference between a rebuild and remanufacture. When complete, the pump is back to its original performance specifications and has a new 1-year warranty from SPX Flow. Due to the new oversized body, standard rotors should not be used due to potential damage or failure of the pump. A pump can be remanufactured two times in its lifetime. The cost of a remanufactured pump is approximately 75% of the cost of a new pump.

A customer faced issues with positive displacement pumps requiring frequent and costly repairs. The problem was due to a change in personnel over the last 3-6 months, causing inefficiencies and expenses. A refresher training course was recommended to ensure proper assembly and preventive maintenance requirements. M.G. Newell conducted educational seminars at the plant, providing hands-on training classes to improve pump maintenance. This led to reduced breakdowns, lower maintenance costs, and increased production operating time.

Regular training programs and PM plans are crucial for maintaining smooth, safe, and cost-effective operations. M.G. Newell and equipment manufacturers offer plant audits and training programs to help customers maintain their equipment and reduce costs.

 

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

Pump Overview

A pump is simply defined as a device that raises, transfers, delivers, or compresses fluids or that attenuates gases especially by suction or pressure or both. Pressure, friction and flow are three important characteristics of a pump system. Pressure is the driving force responsible for the movement of the fluid. Friction is the force that slows down fluid particles. Flow rate is the amount of volume that is displaced per unit time. Pumps are typically classified by the way they move fluids. For the sanitary industry, we will only focus on positive displacement pumps and centrifugal (or rotodynamic) pumps. Positive displacement pumps include single and double rotary lobe pumps and diaphragm pumps.

Positive Displacement Pump

Positive displacement pumps are constant flow machines that force a fixed fluid volume into the discharge pipe, producing the same flow regardless of pressure. They require safety valves and small clearances to minimize leakage and operate at slow speeds to prevent erosion and wear.

When would you choose a PD pump? Typically, PD pumps are selected for the following scenarios:

High Viscosity Products
(up to 1,000,000+ cps)

  • As viscosity increases, flow actually increases. This is
    because the higher viscosity liquids fill the clearances of the pump causing a higher volumetric efficiency.

Variable Viscosities

  • Many liquids vary in viscosity depending on temperature or due to chemical reaction. A rise in viscosity will independently alter the flow rate and efficiency. Add to that the rise in pressure due to the increase in frictional line losses and PD pumps become the clear choice for variable viscosity applications.

Metered Flow

  • A fixed volume of liquid is moved per revolution of a PD pump. Flow quantity can easily be metered by adjusting the speed of the pump.

High Pressure Conditions
(up to 500 psi)

  • Pressure limits will depend on the design of each pump, but pressures of 250 psi (580 feet) are not unusual for a PD pump, with some models going over 3,000 psi (7,000 feet).

Materials with Particulates 

  • Due to its gentle pumping action, PD pumps are able to handle particulates with minimal damage to the product.

Shear Sensitive Products

  • Generally speaking, pumps tend to shear liquids more as speed is increased and centrifugals are high speed pumps. This makes PD pumps better able to handle shear sensitive liquids.

A diaphragm pump is a positive displacement pump using a rubber, thermoplastic, or Teflon® diaphragm and valves to pump fluid. It has two air chambers, air valves, fluid housing, inlet and discharge manifolds, diaphragms, shaft, mufflers, and exhaust port, delivering specific flow per stroke or cycle.

Air Chambers: The pump has two chambers, one on the left side and the other on the right side of it. These
chambers let the compressed air flow in and out of it.

Air Valve: The compressed air is directed to air chambers with the help of air valves. These have a valve cup and a valve plate. Air valves make sure that the compressed air enters the air chambers and leave from it through the exhaust port.

Check Valve: There are four fluid check valves in a double diaphragm pumps. Two of them are inlet check valves while the other two are outlet check valves. The flow of liquid in the fluid housing and manifolds is controlled by these check valves.

Fluid Housing: Each pump has fluid housing, one at each side of the pump. As the name implies, fluid housing is that part which holds the fluid and makes it flow through the pumping mechanism.

Inlet Manifold: Fluid enters the pumping container via the inlet manifold and flows evenly to the left and right fluid housing. This mechanism makes the distribution of fluid equal so that both fluid housings remain in operation.

Outlet or Discharge Manifold: When the fluid is coming out of the container, it passes through a couple of components. First, the fluid passes through one of the exit check valves and then this check valve directs the fluid to the outlet manifold to finally exit the container altogether.

Diaphragms: The air operated double diaphragm pump obviously has two diaphragms in it. The diaphragm is actually a kind of a separation sheet in between the air chambers and fluid housings. The diaphragms are good enough to adjust themselves according to the rise or fall of the air pressure, as the condition may be. Besides, the two diaphragms are allied with a shaft.

Muffler: The objective of muffler is to control noise of the exhaust air. There are multiple mufflers available that offer several levels of noise reduction to ensure effective and efficient pumping operation.

Exhaust Port: The exhaust port is the final exit point in the pump.

 

A centrifugal pump is a rotodynamic pump with a rotating impeller, used for liquid movement. It comprises a casing, impeller, shaft, bearings, and seals, with the impeller providing acceleration and the shaft rotating at motor speed.

Casing – also known as the volute, is the outside visible part of the pump. For sanitary processing, the casing is typically a heavy-walled 316L stainless configured in a spiral design to even out flow and minimize turbulence. The end cover is clamped on and can be easily removed for access to the impeller.

Impeller – The impeller is the main rotating part that provides the centrifugal acceleration of the product. The impeller can have an open or closed vane. Generally closed vane impellers develop higher pressures but have a lower capacity. Open vane
impellers develop lower pressure but have a higher capacity. It is attached to the shaft and rotates inside the casing at the speed of the shaft. The design is balanced to prevent vibration.

Shaft – The shaft rotates insides the casing at the speed of the motor and transfers the torque from the motor to the impeller. The shaft is typically made of 316L stainless.

Bearings – The bearings support the shaft and keep it in alignment so that it does not wobble inside the casing and prevents it from touching the casing.

Seals and/or Packing – The seals are the essential area in terms of hygiene as they prevent the product from leaking back inside the pump or outside of the pump when it is under pressure. Pumps can have either single-seal or double-seal arrangements.

Centrifugal 

Flow Rate and Pressure: Has varying flow rate depending on the system pressure or head.

Viscosity: Flow is reduced when the viscosity is
increased.

Efficiency: Changing the system pressure or head
dramatically effects the flow rate.

Net Positive Suction Head (NPSH): NPSH varies as a function of flow determined by pressure.

Positive Displacement 

Flow Rate and Pressure: Has nearly constant flow regardless of the system pressure or head.

Viscosity: Flow is increased when the viscosity is
increased.

Efficiency: Changing the system pressure or head has
little to no effect on flow rate. 

Net Positive Suction Head (NPSH): NPSH varies as a function of flow determined by speed. Reducing the speed reduces the NPSH. 

 How Does an Air Operated (Double) Diaphragm Pump Work?

1. Chambers are filled with fluid and then emptied through an ongoing process. This is done through inlet and outlet manifolds.

2. The shaft joining the left and right diaphragms in each chamber enables them to move to and fro continuously.

3. Compressed air is directed to one of the diaphragms.

4. Eventually as the suction stoke occurs, the lower ball valve opens and the top one closes. Simultaneously, fluid enters the chamber through the inlet manifold.

5. When air enters the other diaphragm, the top ball valve opens and the lower one is closed. This allows the fluid to exit through the outlet manifold.

6. The same process repeats with the other chamber and it goes in cycles between the two chambers.

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.

Day in the Life of a Welder

From planning and design to implementation and start-up, a project engineer does it all!

Take a look behind the scenes of a day in the life of Julia, our project engineer at M.G. Newell. 

What is a typical day for a project engineer at M.G. Newell?

“Typical” doesn’t really exist as a project engineer. One day you could be sitting at your desk the whole day working on updating drawings, and then the next you’re driving four hours roundtrip for a site visit to quote a new job, or you might have a lunch and learn with a vendor mixed with checking your materials and equipment for an upcoming job on another day. That’s what keeps things interesting, along with no two jobs being the same.

How long have you been a project engineer at M.G. Newell, and what education or background did you have to have to get this job?

I’ve been a project engineer here for a year and a half, and before this I was a corporate R&D engineer at Conagra and then at Syngenta, working on scale-up and manufacturing support of new products. Before that I received my master’s in Ag & Bio Engineering and my bachelor’s in Bio Systems Engineering (go Huskers and Boilermakers!).

What is your favorite thing about your job?

I love constantly learning new things and being challenged, however cliché that might sound. Since every job and customer is different, there’s always some unique challenge or learning curve. The people here that I get to work with are also a big plus!

If someone is interested in becoming a project engineer, what is one piece of advice you’d give them?

Never stop learning or asking questions—the work can be stressful at times, but go easy on yourself when you make mistakes because you will, and that’s okay as long as you learn from them.

For more information, visit our website:  www.mgnewell.com and www.newellautomation.com.