Category Archive: Uncategorized
Watch Our New Company Video: DFT® World-Class Manufacturer of Check Valves and Control Valves
For more than 75 years, DFT® has been in the business of manufacturing check valves and control valves in the United States. What sets DFT® apart from our competitors is that we are an engineered valve company. Our objectives are to solve check and control valve problems and prevent issues like water hammer and check valve failure.
Using the latest design and manufacturing technology, DFT® makes reliable products in accordance with our ISO 9001:2015 quality management system.
Our new company video, DFT® World-Class Manufacturer of Check Valves and Control Valves, provides details on our full line of check valves and control valves. Constructed from carbon steel, stainless steel, exotic alloys, and other materials, our valves can meet customer requirements regardless of their industry, size, pressure, or piping configuration. Additionally, our top-of-the-line severe service control valves feature a straight-thru design that is cavitation resistant.
We’re proud to manufacture world-class severe service control valves and silent check valves, including spring-assisted, in-line, nozzle style, and axial flow varieties. To learn more about DFT®, contact our team of experts or request a quote today.
LSV-100® (General Service Globe Style Control Valve)
The LSV-100® control valve is a cost-effective valve used to control the flow of liquid, gas, and steam in a variety of systems. Designed for use on flanged pipes and fixtures, the LSV-100® control valve is a globe-style valve that can be used for both on/off applications and flow modulation. The trims can be replaced through the bonnet right in the field for minimal downtime and optimal operational efficiency.
Features of LSV-100®
The LSV-100® control valve is valued for its low cost and exceptional durability. Standard designs are composed of carbon steel or stainless steel, with internal components of stainless steel. Standard component features include:
- Sizes from 3/4″ to 6″ in inside diameter
- Carbon steel and stainless steel
- ANSI 150 and 300
- ANSI RF ends
- Characterized trim, including linear, equal percentage, and quick opening
- Pneumatic actuation
- Top entry
- Globe design
Application specifications are used to determine the proper trim options and valve configuration for optimal performance. Valve trim is interchangeable, offering full port, standard port, and reduced port options in the same valve body.
Benefits, Applications, and Industries
The versatility and cost-effective design of LSV-100® valves make them a favorite choice for a wide range of industries and applications.
Benefits
DFT’s LSV-100® control valve is a highly economical globe-style modulating control valve with trim that is easy to change in the field. LSV-100® valves are designed to provide optimal control of fluid flow in a variety of flanged applications. Available in a wide range of sizes and configurations, our LSV-100® valves can be engineered with materials and designs that meet the particular needs of your application.
Applications
The LSV-100® can be used for both flow modulation and on/off applications for flanged components in highly demanding liquid, gas, and steam applications. The durable design, interchangeable trim, and corrosion-resistant materials help to ensure reliable valve operation in even the most extreme conditions.
Industries
LSV-100® valves are highly versatile, low-cost, and durable. This makes them the valve of choice for liquid, gas, and steam control applications in virtually every industry, including:
- Power Plants
- Refining
- Gas Processing
- Food and Beverage
- Pharmaceutical Manufacturing
- Chemical and Petrochemical
- Pulp and Paper Processing
- Commercial Heating and Cooling
Quality LSV-100® Control Valves by DFT
For more than 20 years, DFT has been a leading supplier of highly engineered Severe Service Control Valves for customers in nearly every industry. We have the knowledge and experience necessary to ensure that you have the perfect valve for your operation. To learn more about our LSV-100® valve and other valve solutions, contact us today or request a quote.
DFT Achieves Safety Excellence: 365 Days and Still Counting!
Article written by JP Hanson, a Research Specialist from the Walter Cronkite School of Journalism.
When it comes to manufacturing, safety is critical to DFT’s employees, and the company as a whole. DFT has a Safety Program in place that is overseen by company Vice President Arie Bregman and has an eight-person safety committee headed by Dennis Petrucci and Vinnie Corsi.
In 2020, DFT achieved a record of 365 days without an OSHA recordable accident. Without the frontline leadership of Dennis Petrucci and Vinnie Corsi, the goal would have been a mere target in the distance. Petrucci and Corsi have professional and academic backgrounds in safety practices, specializing in the manufacturing industry. Their knowledge and experience aided in reimagining DFT’s safety focus and implementing the programs that accomplished this achievement.
With immense pride in his team, General Manager Arie Bregman states, “While we can reassure and educate in the workplace, we trust that our people take home what we teach and ultimately engrain these aspects into everyday habits.”
Whether on the production floor or at home, integrating safety into the whole team’s daily routine is essential. For example, DFT invests in fire extinguisher training for its employees, which benefits their awareness on and off the clock. “Each person that walks through the door is reminded of their family, and how happy they would be to see them pull in the driveway for dinner” said Arie Bregman.
Building on this progressive approach to accident prevention, safety leaders are directly encouraged to leverage non-workplace exposures in their training sessions, thereby better cultivating an atmosphere of hazard avoidance. For example, Mr. Bregman enjoys working on automobiles and ties his safety tricks and tips within their meeting content to allow some room for risk management parallels outside of work. These parallels remind employees that their supervisors are practicing what they preach, both inside and outside the walls of DFT.
DFT has a lot to be proud of: Their customers are exceptional. Their products and services are world-renowned. Their team is cohesive, focused, and committed. And their latest safety accomplishment of 365 days without an OSHA recordable accident is an ideal result, and something for their competition to aspire to.
As of the date of this article, the DFT Safety Scoreboard is still adding days to the full year of safety excellence.
Q&A: Superior Protection for Pumps and Compressors – Why Axial Flow Check Valves Are Your Best Choice
Axial Flow Check Valves are used in a wide range of pumps and compressors in a vast array of industries. DFT® hosted a webinar on this subject which outlines the differences between check valves used in their applications, as well as the advantages or disadvantages that each one presents.
Here at DFT®, we frequently field questions regarding this topic. So we are sharing a few common questions that came in from the webinar and were answered by host Arie Bregman.
Q: What are the typical installed cost differentials between swing check valves and axial check valves?
A: Swing check valves are usually less expensive when you initially buy them, but the lifetime cost to own an Axial Flow design valve that is properly sized for the application will always cost you a lot less money over the lifetime of the valve. Swing check valves cannot be sized for low flow applications, so they will wear out and fail causing additional maintenance costs and system shutdowns. The cost to take a prematurely failed valve out and either service or replace it far exceeds the cost differential to get the right valve up front.
Q: What type of check would you use in gas service with intermittent liquids? After compressor?
A: DFT®’s model GLC® or Excalibur® would be best suited for this kind of intermittent gas/liquid service.
Q: Can Axial Flow check valves be used in very viscous flow?
A: Yes, however depending on the viscosity and the min/normal/max flow conditions, other internal modifications may have to be considered like higher cracking pressure springs.
Q: How would you compare CV of a swing, dual plate, and Axial Flow check valves?
A: The differences in head loss between Axial Flow and Swing checks is a function of the Cv of the specific valves you are looking at – head loss must be calculated on a case by case basis. There will usually be a slightly higher head loss for the Axial Flow versus a Swing check, but in many cases, this is not consequential. In cases where pressure loss is a very important piping design consideration, the Axial Flow check valve can be engineered with lower cracking pressure springs and low friction coatings to reduce the amount of energy required to open the valve.
Q: Do you offer a sizing calculator for check valve selection?
A: DFT® does offer sizing services through our Regional Sales Managers or our Inside Sales team. We will be rolling out a new version of our sizing and configurator program very shortly to our Tier 1 distributors. For more information please use the following link to contact someone in your area: https://www.dft-valves.com/check-valves-territory-map/
To learn more on why Axial Flow check valves are your best choice when it comes to pump and compressor protection, you can reference our webinar or contact us today!
Other relevant resources include:
Axial Flow Check Valves: The Best Choice for Pumps & Compressors
Pumps and compressors are used in a wide range of industries such as pharmaceutical, food & beverage, petrochemical, natural gas, power generation, chemical industries, and building maintenance. Pumps and compressors transport fluids and compressible gases, respectively, from one location to another.
Axial flow check valves are an important protection for pumps and compressors as they induce flow in one direction and prevent backflow in the opposite direction. Backward flow can result in extensive damage to equipment, and axial flow check valves are crucial to protecting your investment.
If you missed our webinar, Superior Protection for Pumps and Compressors – Why Axial Flow Check Valves Are Your Best Choice, check it out today for more information about how axial flow check valves are the best choice:
Common Problems & Solutions of Pump and Compressor Check Valves
There are some frequent problems pump and compressor valves face: double door, swing check, and tilting disc check valves often fail, water hammer and pressure pulsation can cause damage to valves and other system parts, and the limited spatial requirements faced by pumps can often lead to less room for traditional check valves. These problems can be solved by installing DFT® axial flow check valves to protect your pumps and compressors.
Double Door Check Valve Failure
Double door check valves are commonly used in air compressors. However, these valves can fail due to poor design, particularly during varying flow conditions. As a solution, DFT® axial flow check valves can be used in place of double door check valves. The design of the axial flow check valve allows pulse-dampening chambers to keep the discs of the valve open during flow reductions.
Pressure Pulsations
Pressure pulsations are caused by the intermittent reduction in pressure due to the reciprocating motion of a reciprocating compressor. The pressure fluctuation causes pulsation shock waves in the system, which increases wear on system components. However, axial check valves consist of no swinging parts and therefore reduce wear on system components, contributing to a longer lifetime in comparison to other valve types. The DFT® model PDC® axial flow check valve was designed for the discharge side of a reciprocating compressor in air and gas applications.
Water Hammer
Water hammer is the phenomenon that occurs when a liquid comes to a sudden stop and generates shock waves inside the pipe. The resulting high pressure can cause significant damage to pipe lines, gaskets, gauges, pipe hangars, and other components. Swing check valves, tilting disc check valves, and double door check valves contribute significantly to water hammer. Replacing these valves with an axial flow, spring-assisted, silent check valve, such as DFT® ALC® axial flow check valve, can reduce the effects of water hammer.
Spatial Requirements
A common problem faced when using a pump, is limited space for valves and pipes. Pumps are extremely loud when in operation and therefore are usually put in special rooms. This leaves less room for valves and piping. Axial flow valves can handle turbulence better than conventional check valves. This makes them an excellent option when space is limited. Additionally, axial flow check valves can be installed on both vertical and horizontal pipes.
Advantages of Using Axial Flow Check Valves
Axial flow check valves offer several advantages over other types of check valves, such as:
- Rapid closing action (prevents water hammering)
- The ability to be properly sized for each application
- Durability
- Increased valve longevity
- The ability to accommodate low-pressure drops and high flow
- Non-slamming opening and closing action
- Tight shut-off leading to zero leakage
- Various end-to-end options
- The ability to be installed in both horizontal and vertical orientation
Axial flow check valves offer many advantages over other types of check valves. DFT® axial flow check valves can save down time and money by preventing damage and increasing the lifetime of your pumps, valves, pipes, and other system parts. Check out our online technical catalog for more specific information about our axial flow check valves. To discuss your needs with a valve expert at DFT® contact us, or request a quote today!
You may also find interest in the online technical catalog and our webinar Q&A.
