Money on Steam System Blowdowns



Money on Steam System Blowdowns

Boiler Blowdown Heat Recovery. Fast and Sure Way to Save Fuel and Optimize Boiler Operstion.

65 Years Old US Manufacturer of Steam System Components and Chemical Metering Pumps

Simple, rugged industrial quality pumps and steam system equipment that will provide excellent performance and value.  

– Back Pressure Valves

– Pressure Relief Valve

– Pulsation Dampeners

– Liquid Sample Coolers

– Miniature Heat Exchangers

– Boiler Blowdown Heat Recovery

– Boiler Blowdown Flow Control

– Boiler Blowdown Tanks

– Blowdown Separators

– Chemical Feed System

– Chemical Mixers

– Diaprhragm Metering Pumps

– Various Industrial Metering Pumps

Boiler Blowdown Heat Recovery
https://jcgregsolutions.wordpress.com/2017/07/11/blowdown-heat-recovery-systems-for-boilers/

See related posted information.
https://jcgregsolutions.wordpress.com/category/heat-exchange/

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com

Where to buy the best boiler blowdown valve for continuous surface blowdown flow control?


Orifice meter for boiler blowdown flow control

There are several types of boiler blowdown valves and flow control devices available for controlling your boiler’s surface water blowdown. We make an Orifice Meter type valve and they come in two designs, each offering 17 precise and consistent flow rates.

To operate at maximum efficiency, boilers need to continuously dispose of dirty boiler water. Dissolved solids and other sediments can cause your boiler to work harder than it needs to, to produce steam. Intermittently flushing bottom blowdown water and continuously blowing down a small percentage of the boiler’s surface water is a good way to maintain clean and efficient boiling.

And this is done with a meter or blowdown valve.

If you are wondering who has the best boiler blowdown valve for continuous top blowdown flow control, allow us to make a case for their Orifice Meter type blowdown valve.

Our Orifice Meter: for repeatable boiler blowdown flow control

Our Orifice Meter offers control of the continuous blowdown flow rate by utilizing 17 different hole sizes drilled into a hardened stainless steel orifice plate. Each hole is drilled to a diameter that will produce the flow rate shown in our charts on OM_datasheet_2016 pages 3 and 4. To cover a wide range of applications, four different orifice plates (1A, 2A, 3A, and 4A) are available to provide a blowdown flow range suitable for the boiler operator to maintain the target boiler water quality level.

In order to function properly, the boiler must have a continuous blowdown skimmer pipe installed inside the boiler drum, with the opening for the pipe within a half a foot of the normal water level in the boiler drum. Our Orifice Meter can be mounted anywhere between the boiler and the continuous blowdown heat recovery system.

What makes our Orifice Meter special?

Hightlights:

Durable, designed for years of service life, not to be thrown away and replaced

Little maintenance required

500 Brinnell and Stellite finishes on pivotal components

Pieces are lapped together to a light band finish to ensure accuracy and to eliminate leakage.

US manufacturer focuses on great customer service and high quality, durable products. Unlike a lot of valves, Our Orifice Meters are made with a rugged and durable design intended to last for years of service life with little, but extremely easy maintenance required.

Our Orifice Meters utilize a 100 mesh screen to filter out any small particles in the dirty blowdown water that would otherwise plug the blowdown valve orifices. Cleaning this out is as simple as opening the drain valve at the bottom. Done. 

Selector disc and orifice plate for Orifice Meters

Selector disc (left) and orifice plate (right). We offer 4 different orifice plate sizes for both the OM250 and OM650 type Orifice Meters

And then the work horse components that make the orifice meter what it is are the selector disc and orifice plate. Type 420 stainless steel material is used to make the orifice plate. The plate is drilled with 17 holes of increasing size. The orifice plate is heat treated to 500 brinnell hardness and lapped to a mirror finish with a tolerance of three light bands (0.00003”). This lapped finish prevents high pressure boiler blowdown water from leaking through any orifice but the one selected. The 500 brinnell hardness is sprayed on so that the orifice plate can withstand high temperatures without sustaining imperfections.

As for the selector disc, the index slot exposes the desired orifice on the orifice plate for service. This rotates when the adjustment key is turned from one index number to another. The disc has a Stellite surface coating and is lapped to the same finish and flatness as the mating orifice plate to insure a leak free seal. The Stellite finish is a sprayed on component to help the selector disc become extremely wear resistant to the high pressure, hot boiler water.
The 500 brinell hardness on the orifice plate and the Stellite finish on the selector disc ensure our Orifice Meter will withstand the extreme conditions for years of service live. The light band lapped finish ensures that over these years, a solid, leak free connection between the orifice plate and selector disc will remain.

Conclusion

So in conclusion, if you are looking for where you can buy a boiler blowdown flow control valve, look no farther than our Orifice Meter. It is one of the most durable products on the market offering years of service for your continuous boiler blowdown application.

It will help with boiler efficiency and thus save you money. And on top of all of these features, is its simple and straightforward design. Simply turn the adjustment key to the number you need and that size orifice will control your boilers blowdown to maintain a consistent and accurate flow. No complicated electronics or sensitive adjustments with this valve. Just rugged, functional accuracy.

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com

How to size and design a boiler blowoff tank for intermittent bottom boiler blowdown


You probably constantly consider and implement processes and equipment to help keep your boiler water clean. Clean boiler water produces steam more efficiently, thus potentially saving thousands of dollars every year on fuel costs.

You probably constantly consider and implement processes and equipment to help keep your boiler water clean. Clean boiler water produces steam more efficiently, thus potentially saving thousands of dollars every year on fuel costs.

Deaerator tanks, condensate tanks, boiler chemical feed pumps are a few ways boiler feed water is treated to reach optimum efficiency.

 
Don’t devalue the simple task of intermittently blowing down dirty boiler water.

 
Not to be confused with continuous surface blowdown, intermittent bottom blowdown is the process of (usually) manually flushing dirty bottom boiler water out of the boiler. This is often performed 2-3 times throughout the day.

No matter how well boiler water is treated and handled before entering the boiler, when boiling, sediments and dissolved solids will form in the boiler. To this day there is still nothing better than directly flushing the boiler of this dirty water intermittently throughout the day.

And a properly sized blowdown tank is important for safe and legal disposal of the boiler blowoff water.

What is the Purpose/Function of boiler blowoff tanks?

First let’s make sure we understand the function and purpose of a blowoff or blowdown tank. Boiler blowdown tanks are designed to handle a large, somewhat instantaneous flow from the flushing of a boiler. This is normally a 30 second to 1 minute processes. When the hot, high pressure boiler blowdown enters the low pressure blowdown tank, flash steam is created.

The steam leaves the tanks through the vent, which is usually vented to atmosphere, and the remaining hot blowoff water cools naturally at the bottom of the tank for a 6-12 hour period. If sized correctly the initial amount of dirty boiler water remaining after steam has flashed, will reach up to but not leave out the over flow drain until the next boiler blowdown process occurs.

From here on out, the hot blowdown will enter the tank, flash steam will be vented, and the remaining hot water will immediately quench with the since cooled blowdown water and leave out the over flow drain at a temperature under 140 degrees. This is a reoccurring process.

 
So the three most important things to consider when designing a boiler blowdown tank to safely remove the hot, high pressure water are: Vent size to handle flash steam, capacity of tank to hold remaining hot water, and overflow drain size.

How we size boiler blowdown tanks

If you do not already know the capacity of the tank needed, the data required for sizing calculations are: the boiler’s blowdown pipe size, boiler(s) steam drum diameter & length, and the boiler operating pressure.

 
Here’s the process:

We can use the operating pressure to find the percentage of flash steam that will occur when venting to atmosphere

We will then find your pipe capacity flow via the blowdown pipe size. This along with operating pressure will give us an expected blowdown rate.

From here we can adjust the size of our tank diameter, height, vent, and drain size to see what the most cost effective design is, that will safely dispose of your boiler’s hot blowdown water.

Customizing

With the last bulleted point in mind, let us know if you have certain parameters for us to factor in when designing your boiler. We can offer you different heights and widths of tanks based upon your available space. We’ve even designed blowdown tanks to function horizontally when necessary, though it is rare to have height restrictions before floor space restriction.

Our construction of standard boiler blowoff tanks meets ASME Section VII, Div. 1, 50 PSI DWP, and all come with a National Board serial number. If you have extreme requirements that you believe needs a tank with a higher pressure rating, we can do that too. But we encourages all potential customers to call in first as it is likely no matter how high the operating pressure is in your boiler, a 50 PSI tank is more than sufficient enough to handle the blowdown.

Conclusion

If you are currently in the process of a new boiler room installation, make sure to contact us about any of your boiler blowdown needs. We have many products, like our blowdown tanks that are ready to serve your application for years to come. For example blowdown separators would be another great product to look at if you need a more economical way to handle blowdown as well as a desire to save floor space!

 

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com

Operation of Continuous, Surface Boiler Blowdown Heat Recovery


With the concepts already laid out, explaining how a Madden boiler blowdown heat recovery system works is pretty easy.

When the hot continuous surface blowdown enters its flash tank, the flash steam that is produced when entering the low pressure vessel, is designed to be piped back to a D/A tank, instead of going to atmosphere. There are many valuable B.T.U’s in the flash steam that can be reused in the D/A tank so that less fuel/heat are needed to keep the water boiling in the boiler.

After the flash steam has been released and vented to the D/A tank, the remaining hot boiler blowdown leaves the bottom of the vessel when a float valve is activated and passes through/over either a coiled heat exchanger or U-tube type heat exchanger.

Here, the water the boiler operator uses as make up water, should first be piped through the heat exchanger of the Madden heat recovery system. It serves a dual purpose. First, this make up water (normally around 60 degrees) will be cooling the dirty boiler blowdown to under 140 degrees so that it can safely and legally drain to the city sewer. Second, on the flip side, it is picking up B.T.U’s from the hot boiler blowdown. It picks up heat.

So now instead of sending 60 degree make up water to the boiler, the boiler operator can constantly be sending make up water that has picked up 10+ degrees from the hot blowdown water. Much less fuel is then needed to continue boiling, and this starts to add up when you consider it is happening 24/7/365 days out of the year!

Conclusion
If your boiler room has a boiler or boilers utilizing continuous surface blowdown, and you do not already have some form of heat recovery, give us a call! We would love to start working on this project with you to save B.T.U’s and therefore thousands of dollars.
Boiler Blowdown Heat Recovery. Fast and Sure Way to Save Fuel and Optimize Boiler Operstion.

65 Years Old US Manufacturer of Steam System Components and Chemical Metering Pumps
Simple, rugged industrial quality pumps and steam system equipment that will provide excellent performance and value.  
– Back Pressure Valves

– Pressure Relief Valve

– Pulsation Dampeners

– Liquid Sample Coolers

– Miniature Heat Exchangers

– Boiler Blowdown Heat Recovery

– Boiler Blowdown Flow Control

– Boiler Blowdown Tanks

– Blowdown Separators

– Chemical Feed System

– Chemical Mixers

– Diaprhragm Metering Pumps

– Various Industrial Metering Pumps
Boiler Blowdown Heat Recovery

https://jcgregsolutions.wordpress.com/2017/07/11/blowdown-heat-recovery-systems-for-boilers/

See related posted information.

https://jcgregsolutions.wordpress.com/category/heat-exchange/

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com
 

What are B.T.U’s and why are they important in boiler blowdown processes and cost savings?


B.T.U stands for British thermal unit and is commonly defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. Other than safety measures, BTU’s are arguably the most important factor to spend time and energy on when it comes to your boiler process. In the boiler room, B.T.U’s are their own form of currency. It takes a lot of energy to produce heat to boil water and to keep it boiling. The more efficient the boiler operator can be, the less energy, heat, and fuel are needed to produce steam.

Most boiler applications run 24/7/365. The energy to produce heat can come from natural gas, electric, or coal, among other sources and processes. So the smallest amount of B.T.U’s you can save will add up to big savings to your fiscal year’s bottom line.

There are many processes in the boiler room dedicated to maintaining and reusing already generated B.T.U’s. Condensate return pumps return condensed steam back to the boiler water as make up water, deaerator (D/A) tanks can reuse steam, and boiler chemicals are dosed into the boiler to make sure the water remains free of scale build up and of dissolved solids which hinder heat transfer from the boiler’s fire tubes to the water. 

And last but not least, when your boiler(s) application calls for continuous blowdown to maintain clean water, one can recover B.T.U’s from this as well. Madden Manufacturing is one of the industry leaders in designing boiler blowdown equipment, and specifically blowdown heat recovery systems.

Concept of B.T.U’s & Heat Recovery

To get you in the right frame of mind for this topic, think about when you’re preparing to cook noodles and need to boil a pot of water. Some may simply fill a pot of water and turn the stove on high and not think twice about it. However, others may think to specifically fill their pot with the hottest water possible from the sink. In this case the water would come to a boil faster and the stove will not have to work as hard.

This is because the hot water from the sink contained more B.T.U’s than it would have otherwise. The stove didn’t need to produce as many B.T.U’s to reach boiling. Usually ground water or city water is around 60-70 degrees Fahrenheit, and your water heater can provide water closer to 100-110 degrees Fahrenheit. That is 40 less B.T.U’s needed to be generated by the stove top to reach boiling.

If you were not familiar with British Thermal units before, hopefully the concept where it concerns boilers is a little clearer now. So let’s see how the Madden Manufacturing Blowdown Heat Recovery System product line works.

Boiler Blowdown Heat Recovery. Fast and Sure Way to Save Fuel and Optimize Boiler Operstion.

65 Years Old US Manufacturer of Steam System Components and Chemical Metering Pumps
Simple, rugged industrial quality pumps and steam system equipment that will provide excellent performance and value.  
– Back Pressure Valves

– Pressure Relief Valve

– Pulsation Dampeners

– Liquid Sample Coolers

– Miniature Heat Exchangers

– Boiler Blowdown Heat Recovery

– Boiler Blowdown Flow Control

– Boiler Blowdown Tanks

– Blowdown Separators

– Chemical Feed System

– Chemical Mixers

– Diaprhragm Metering Pumps

– Various Industrial Metering Pumps
Boiler Blowdown Heat Recovery

https://jcgregsolutions.wordpress.com/2017/07/11/blowdown-heat-recovery-systems-for-boilers/
See related posted information.

https://jcgregsolutions.wordpress.com/category/heat-exchange/

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com

What are the advantages of using a vertical heat exchanger in a boiler blowdown heat recovery system



 
Madden HV series boiler continuous blowdown heat recovery systemWhen developing a P & ID and/or floor plan for a boiler room installation, horizontal floor space is usually given a lot of thought and attention. Vertically designed boiler equipment allows for more efficient spacing in your boiler room and is also much easier to incorporate later on if a piece of equipment is being added to a preexisting boiler room.

Madden Manufacturing’s HV series heat recovery systems are designed to operate with a small footprint. The unit itself stands on a 24” X 24” pad and other than where you choose to install the inlet manifold, the rest of the unit is does not take up much more than 2 square feet the whole way up.

Floor space can turn into an expensive commodity once the boiler room fills up. It is usually much less costly to install up than it is side to side in a room; but this isn’t the only advantage to having a vertical blowdown heat recovery system, and specifically, a vertical heat exchanger.

Coils are self-draining

The Madden vertical boiler blowdown heat recovery system design allows for the heat exchanger to be a coil and shell type heat exchanger with a self-draining coil. Hot, dirty surface blowdown from the boiler can be hard on piping in your system, the vertical design ensures that the boiler’s continuous blowdown will continuously flush all the way through your heat recovery system.

This significantly cuts back on maintenance requirements and improves the service life of our product.

No scale build up

The heat exchanger in Madden’s HV series heat recovery systems also avoid scale build up. Because the makeup water passing through the heat exchanger is never stagnant and always replenished, the shell side stays cool enough that minerals can’t develop, which causes the scale.

Once again, this will significantly cut back on maintenance required and increases the heat transfer efficiency and service life of our boiler blowdown heat recovery systems.

Choice between Copper and 304 SS coils: Added heat recovery, or added service life

A shell and coil heat exchanger is a simple and rugged design, and the vertical aspect of this design allows Madden Manufacturing to roll their own coils. Madden HV series heat recovery systems offer both Copper and 304 stainless steel coils.

Copper’s main advantage is better heat transfer. More BTU’s are picked up by the makeup water from the hot boiler blowdown through a copper coil than a stainless steel coil. This means money saved in your system. The more BTU’s that can be added to the makeup water, from the boiler’s continuous surface blowdown, the less fuel the boiler has to use to ultimately produce steam.

304 stainless steel’s main advantage is longevity. Though a vertical system is designed to have long service lives and little required maintenance, inevitably coils do wear out. Stainless steel’s durability and strength helps the coil weather the constant stress of handling hot dirty surface blowdown from the boiler while externally being cooled by makeup water.

Full System provided in one unit, not pieces

A handful of competitive products on the market offer a flash tank vessel for the continuous blowdown and then the heat exchanger as separate pieces. Madden Manufacturing offers standalone boiler blowdown flash tanks and standalone coil type heat exchangers, but we also designed a one piece, full system for convenience.

Less piping and planning is needed with a Madden heat recovery system since it includes the flash tank and heat exchanger together, utilizing a float valve to allow the hot boiler blowdown to pass through the system mechanically. No electrical wiring needed for the essentials of our heat recovery systems’ operation.

Conclusion

If you are not currently recovering heat from your boiler’s continuous surface blowdown and are looking to do so, a vertical, one piece heat recovery design will save you time and energy in planning this addition as well as literally saving you space. Don’t miss out on the potential savings due to the hassle of figuring out how and where you can install a heat recovery system. The Madden’s vertical, one piece design makes adding a heat recovery system in your boiler room much easier than our competitors’ products.

And if you are planning a new boiler room entirely, enjoy the benefits of added floor space by using our one piece, vertical design.

There are hundreds of thousands of BTU’s leaving boilers every hour through continuous surface blowdown. We believe that recovering those otherwise lost BTU’s in your makeup water to save on fuel costs, is well worth the initial cost and time spent planning for a heat recovery system. And the Madden HV series heat recovery systems are about as easy as it can get when it comes to installing large boiler type equipment in a boiler room.

Boiler Blowdown Heat Recovery. Fast and Sure Way to Save Fuel and Optimize Boiler Operstion.

65 Years Old US Manufacturer of Steam System Components and Chemical Metering Pumps

Simple, rugged industrial quality pumps and steam system equipment that will provide excellent performance and value.  

– Back Pressure Valves

– Pressure Relief Valve

– Pulsation Dampeners

– Liquid Sample Coolers

– Miniature Heat Exchangers

– Boiler Blowdown Heat Recovery

– Boiler Blowdown Flow Control

– Boiler Blowdown Tanks

– Blowdown Separators

– Chemical Feed System

– Chemical Mixers

– Diaprhragm Metering Pumps

– Various Industrial Metering Pumps

Boiler Blowdown Heat Recovery

https://jcgregsolutions.wordpress.com/2017/07/11/blowdown-heat-recovery-systems-for-boilers/

See related posted information.

https://jcgregsolutions.wordpress.com/category/heat-exchange/

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com

How Madden offers fast lead times on boiler blowdown equipment: Get blowdown separators in as little as 1-2 weeks


It is costly to stock entire units, so we started with the blowdown separator to see if the option to dramatically decrease the lead time would take off with our distributors and end users.

Here’s why Madden can offer 1-2 week lead times on some of their more popular blowdown separator designs:

Madden blowdown separators models are pre-designed to be sized for intermittent bottom boiler blowd off based on the operating pressure of the boiler. The flash tank on the separator must be sized to handle the maximum amount of flash steam and water at any given second during the blowdown, and the vent sized specifically to handle the flash steam rate and drain to handle the remaining hot water. Our aftercoolers are sized based on the flash tank’s drain, with a coinciding automatic temperature regulating valve for the cooling water.

So,

This means, for our most popular designs, the BD230C44, BD230D45, and the BD230E55, we can keep BD230E55’s in stock at all times, and use them for emergency inquiries where the applications call for a BD230C44 or D45 by simply bushing down to the correct piping.

All of these units are sized to handle boilers operating up to 150 PSI. This means a BD230E55 with a 2” NPT inlet, and 5” 150# flanged vent and drain is a little excessive for a boiler operating at a lower pressure and blowing down with a smaller blow off pipe.
But for a minimal additional cost, we believe there is a great benefit for end users to bush their piping to fit a BD230E55 if it means they can have the unit on site in as little as a week!

Conclusion

The next time you are a part of hospital, prison, university, or food plant addition or new site build that involves a boiler room, or when you need an emergency replacement, seek out a Madden Manufacturing representative for pricing and availability.

Our small family owned manufacturing company has years of experience and is known for our responsive service and durable products. And now we’re focusing on increasing our production speeds.

Very few companies if any can offer emergency boiler blowdown separators in as little as a week without compromising the integrity and function of the blow off separator’s design.

Boiler Blowdown Heat Recovery. Fast and Sure Way to Save Fuel and Optimize Boiler Operstion.

65 Years Old US Manufacturer of Steam System Components and Chemical Metering Pumps

Simple, rugged industrial quality pumps and steam system equipment that will provide excellent performance and value.  
– Back Pressure Valves

– Pressure Relief Valve

– Pulsation Dampeners

– Liquid Sample Coolers

– Miniature Heat Exchangers

– Boiler Blowdown Heat Recovery

– Boiler Blowdown Flow Control

– Boiler Blowdown Tanks

– Blowdown Separators

– Chemical Feed System

– Chemical Mixers

– Diaprhragm Metering Pumps

– Various Industrial Metering Pumps
Boiler Blowdown Heat Recovery

https://jcgregsolutions.wordpress.com/2017/07/11/blowdown-heat-recovery-systems-for-boilers/
See related posted information.

https://jcgregsolutions.wordpress.com/category/heat-exchange/

For Inquiry or RFQ (Request for Quotation) on posted technology solution, please email: gregoriojess@yahoo.com

Jess C. Gregorio

Affiliate Technical Marketing and Project Lead Generation Manager for the Philippine Territory

gregoriojess@yahoo.com

https://jcgregsolutions.wordpress.com/

Driving Leads. Adding Sales.
View story at Medium.com

What accessories are needed with chemical metering pumps and what purpose do they serve?



Positive displacement chemical metering pump designs are the best available for injecting chemicals into processes where such dosing is needed. There are many additional components that can enhance the performance of your chemical dosing application. This article will walk through the more popular components found in chemical metering applications and mention the purpose each of them serve.

Chemical Injection Accessories

Calibration Column Calibration columns: 
even for companies like ours, Madden Manufacturing, who bench test and calibrate every pump before shipping, calibration columns are important. If your application’s operating pressure ever changes, or if you have multiple applications, a calibration column is going to save you a head ache. These units allow you to quickly and easily measure and calibrate your chemical injection pump’s output based upon the current pressure it is operating against.

Y strainers: 
positive displacement type chemical dosing pumps are the best at chemical dosing for this main reason, they accurately and repeatedly dose a finite amount of liquid. This usually means the valve assembly is compact and operates on a check ball (or similar) system, to ensure accurate dosing. Debris reaching the inside of your metering pump’s solution head can cause inaccurate output as well as early fatigue of parts.

Pressure relief valves: 
no system is perfect, and no application is immune to problems. A pressure relief valve ensures your chemical injection pump’s safety from any issues that may arise from piping, other components or the process itself downstream. The relief valve can be adjusted to divert flow back to the source, or pump’s suction line within a range of pressures (usually 10-150 PSI for chemical metering applications).

Back pressure valves: 

the term positive displacement refers to the action of moving fluid by trapping a fixed amount of it, and then forcing that trapped amount onto the next section (in our case piping). As mentioned earlier the trapping motion is usually accomplished using check ball valves on the suction end and discharge end of the pump’s valve assembly. If the process does not have any back pressure, you risk inaccuracy in your chemical injection pump’s output. This would be due to the balls not seating firmly and consistently with each stroke of your dosing pump. A back pressure valve uses a spring and diaphragm to apply positive discharge pressure to the chemical metering pump system.

Pulsation dampeners: 
positive displacement chemical metering pumps normally use either a piston and/or a diaphragm as the driving force to inject the chemical. This results in a pulsing flow rate. Pulsating flow rates are normally fine for chemical injection applications, but in cases a smooth flow rate is needed, or just for added equipment protection, using a pulsation dampener is a cost effective way to produce smooth, steady flow with a positive displacement type chemical metering pump. Pulsation dampeners eliminate 95% of pressure spike.

Pressure gauge: 

without a pressure gauge setting your back pressure valve and relief valve will very difficult. Madden Manufacturing recommends using liquid filled pressure gauges with positive displacement chemical dosing pumps as they minimize vibration and help display accurate readings.
Foot valves: it isn’t always possible to provide a metering pump with a flooded suction set up. In cases where the pump needs to overcome a suction lift, foot valves are a great solution. Foot valves keep liquid in the suction line so that after it is primed the first time, in theory, you will never have to prime the suction line again. 

Non-essential, but useful chemical injection accessories

Leak detecting pressure switch: in Madden Manufacturing’s Type DDB Double Diaphragm design, for example, there is a spacer between the primary and secondary diaphragm where a pressure switch can be installed. The space between the diaphragms will have no pressure when operating successfully. If the primary diaphragm were to fatigue, the process’ operating pressure would now be residing in between the two diaphragms which would then trip the leak detecting pressure switch. Madden recommends wiring this to sound/signal an alarm as well as to shut off the pump.

Flow indicator: flow indicators are a simple on/off type of component. These accessories are set to your chemical metering pump’s flow range to send an “it is on/off” signal. As long as the pump is pumping, your system will show a “good” sign, if it stops pumping, the flow indicator will let you know something is wrong with the system.

Variable frequency drives: VFD’s allow you to control motor speed locally or remotely to adjust your pumps output. These can also be used in conjunction with a Programmable Logic Controller for further automation. Most chemical injection pumps’ design include a manual stroke length adjustment for output control. A VFD increases flexibility with your chemical dosing application. 

Conclusion

Most of the time, accuracy and consistency in a chemical metering application is of the utmost importance. Hence the reason for the metering pump design. So, if you have a standard chemical metering application which needs a chemical dosing pump and associated accessories, make sure to put in time to consider all the benefits and features of metering pump accessories, not just the pump.

Boiler Blowdown Heat Recovery. Fast and Sure Way to Save Fuel and Optimize Boiler Operstion.

65 Years Old US Manufacturer of Steam System Components and Chemical Metering Pumps

Simple, rugged industrial quality pumps and steam system equipment that will provide excellent performance and value.  

– Back Pressure Valves

– Pressure Relief Valve

– Pulsation Dampeners

– Liquid Sample Coolers

– Miniature Heat Exchangers

– Boiler Blowdown Heat Recovery

– Boiler Blowdown Flow Control

– Boiler Blowdown Tanks

– Blowdown Separators

– Chemical Feed System

– Chemical Mixers

– Diaprhragm Metering Pumps

– Various Industrial Metering Pumps

Boiler Blowdown Heat Recovery

https://jcgregsolutions.wordpress.com/2017/07/11/blowdown-heat-recovery-systems-for-boilers/

See related posted information.

https://jcgregsolutions.wordpress.com/category/heat-exchange/

For inquiry and RFQ (Request for Quotation), 

email gregoriojess@yahoo.com

Life Hacks. Techno Sites.

https://jcgregsolutions.wordpress.com/2017/07/10/treasure-chest-of-ideas-and-solutions/

Applied Technology to Make Things Better.

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