Loren Cook Laboratory Exhaust Systems

CAVP

Laboratory Exhaust Systems

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Loren Cook CAVP

Centrifugal blower, belt or direct drive with an airfoil wheel, paired with a high dilution, high plume, induced flow Vari-Plume (VP) nozzle.

Its side intake connection arrangement allows for direct ductwork connection or for use in conjunction with a mixing box or energy recovery plenums. Unit arrangement 10 (belt drive) or arrangement 4 (direct drive) design allows for installation with a vibration isolation base for more sound- and vibration-sensitive applications.

Features
  • Full welded airfoil wheel and housing
  • Lifting lugs
  • Cast regreasable bearings
  • VP-induced flow nozzle
  • Standard construction meets AMCA Type ‘C’ spark-resistant construction
  • Available with optional mixing box or energy recovery plenum

CPSLE Series

Laboratory Exhaust Systems

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Loren Cook CPSLE Series Laboratory Exhaust Fans

Centrifugal unit with either a welded backward inclined or airfoil wheel. Fully welded housing with curb cap and low-loss inlet box. Discharge nozzle optimized for specific outlet velocity requirements. Economical choice for laboratories or light industrial applications where odors and contaminants must be discharged away from intakes. Available with an optional 10-foot effective stack.

Features
  • Full welded housing
  • Fully welded wheel available in either airfoil or backward incline design
  • Lifting lugs
  • Cast regreasable bearings
  • Curb mounted with low-loss inlet box with access
  • Nozzle field adjustable to outlet velocity requirements
  • Optional discharge extension rated for 125 mph without guy-wires

Power-Plume®

Laboratory Exhaust Systems

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Loren Cook Power-Plume® Laboratory Exhaust Systems

Powered dilution exhaust fan. The unit’s axial design creates high dilution rates while maintaining a high plume. The Power-Plume design eliminates the need for a mixing box and is superior to any adjustable nozzle design.

The unit can be mounted to curbs, stacked, or directly paired to a primary laboratory exhaust fan. Typical applications include any laboratory project that requires energy savings without compromising safety and projects where the wind study findings show the need for the highest available plume.

Features
  • Powered induction nozzle
  • Dilution rates between 200–1000%
  • Lifting lugs
  • Unit can mount to a stack, curb or directly to the primary exhaust fan

QMXLE

Laboratory Exhaust Systems

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Loren Cook QMXLE Laboratory Exhaust Systems

Mixed flow, contour wheel, in-line, curb mount, laboratory exhaust unit. The unit has a minimum height of 10 feet with a discharge nozzle optimized for specific outlet velocity requirements.

It is the most efficient choice for high school or community college laboratories or light industrial applications where intakes must be free of odors and contaminants. Available with mixing box arrangements for single fan or multiple fan and (N + 1) operation.

Features
  • Full welded wheel and housing
  • Lifting lugs
  • Cast regreasable bearings
  • Nozzle with integral damper selected to meet specified outlet velocity requirements
  • Standard construction meets AMCA Type ’C’ spark-resistant construction
  • 10-foot unit design rated for 125 mph without guy-wires
  • Available with isolation mixing box for damper installation
  • Mixing boxes are available for multiple-unit installation
  • Stainless steel shaft and hardware

QMXVP

Laboratory Exhaust Systems

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Loren Cook QMXVP Laboratory Exhaust Systems

Mixed flow, contour wheel, in-line, curb mount, laboratory exhaust unit with a minimum height of 10 feet. Unit is paired with a high dilution, high plume, induced flow Vari-Plume (VP) nozzle.

The premier choice for hospitals, research laboratories, and the pharmaceutical industry. Available with mixing box arrangements for single fan or multiple fan and (N + 1) operation. Also available with optional seismic (OSHPD) certification.

Features
  • Full welded wheel and housing
  • Lifting lugs
  • Cast regreasable bearings
  • VP-induced flow nozzle
  • Standard construction meets AMCA Type ‘C’ spark-resistant construction
  • 10-foot unit design rated for 125 MPH without guy-wires
  • Bifurcated unit with easy-out motor available
  • Available with isolation mixing box for damper installation
  • Mixing boxes are available for multiple-unit installation

TCNHBLE

Laboratory Exhaust Systems

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Loren Cook TCNHBLE Laboratory Exhaust Fan

Centrifugal, in-line, curb mount, backward-inclined wheel, laboratory exhaust unit.

The unit has a minimum height of 10 feet with a discharge nozzle optimized for specific outlet velocity requirements. It is an economical choice for high school or community college laboratories or light industrial applications where intakes must be free of odors and contaminants.

Can be installed with mixing box arrangements for single fan or multiple fan and (N + 1) operation. Available with optional hurricane (NOA) certification.

Features
  • Full welded wheel and housing
  • Lifting lugs
  • Cast regreasable bearings
  • Nozzle design to meet specified outlet velocity requirements
  • Standard construction meets AMCA Type ‘B’ & ‘C’ spark-resistant construction
  • 10-foot unit design rated for 125 mph without guy-wires
  • Available with isolation mixing box for damper installation
  • Mixing boxes are available for multiple-unit installation
  • Stainless steel shaft and hardware

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                      Jim Lubratt

                      President & Chief Executive Officer

                      Jim Lubratt has been president of SVL since 2006. He first joined the company as a sales engineer in 1992 and was made a partner in 2000. He holds a Bachelor of Science in mechanical engineering from Southern Methodist University and first entered the HVAC industry as a marketing engineer for a heat pump manufacturer in Texas.

                      In addition to his role at SVL, Jim is vice president of AQC Industries, LLC, a manufacturer of specialized underground ductwork systems. He is also an investor and board member for Hydromx, Inc., a manufacturer of heat transfer nanofluids, and Crotega, Inc., creators of personal and building security solutions.

                      Jim and his wife, Tracy, met in college and married in 1993. They have three children, two of whom have graduated college in Texas, while their youngest is attending Grand Canyon University in Arizona.

                      Outside of work, Jim places a priority on his faith, family, friends, and fitness. He enjoys helping people-supporting charities, time with his wife and kids, road-biking with friends and efforts to stay physically fit.

                      A message from Jim on the achievements of SVL

                      SVL started in February 1967 by Charlie Schwab and Craig Vollhaber. Schwab-Vollhaber, Inc. (as it was named at the time) steadily grew and, in 1985, welcomed Paul Lubratt as another partner, becoming Schwab-Vollhaber-Lubratt, Inc. SVL’s founders had the determination to build the most talented, customer-focused HVAC representative in the Midwest. Our original drive and passion still shape the company and culture to this day. The achievements of an organization are the results of the combined efforts of every individual. From humble beginnings, SVL founders paved the way to industry success with hard work and determination. “Today, SVL is strongly organized with great people to lead our industry forward as we are challenged with fast-paced changes to reduce our environmental impact,” says Jim. Now, 55+ years later, SVL is under the leadership of two new principals who share the same vision and drive that has propelled SVL throughout the years. Built on a foundation of integrity, Jim Lubratt, and Charlie Vollhaber strive to ensure opportunities for personal growth, improved work environment, and shared life enrichment. The achievements of our organization are the results of the combined efforts of every individual.

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                      Charlie Vollhaber

                      Executive Vice President & Officer

                      Charlie Vollhaber is a third-generation employee at SVL, as a grandson of company co-founder Craig Vollhaber and son of former CEO Todd Vollhaber. Charlie holds a Bachelor of Science in mechanical engineering and an MBA, both from the University of Minnesota. He became an outside salesman for SVL in 2013, was made a partner in 2019, and then executive vice president and officer in 2022.

                      He grew up playing sports, including football, basketball, golf, and track, and enjoys the competitive nature of the HVAC industry. “I like that no two days are ever the same as there are always questions to answer and problems to solve,” he says. “Most of all, I enjoy working with great people and coordinating together on challenging projects to achieve positive results together.”

                      Outside of work, Charlie enjoys spending time with his wife, Lesley, and their three boys. He’s also fond of golfing, traveling, and attending concerts and sporting events. One of his favorite quotes is from the book of Philippians: “Do nothing from selfish ambition or conceit, but in humility count other more significant than yourselves. Let each of you look not only to his own interests, but also to the interests of others.” Because HVAC and construction is such a team effort, he says, “this mindset helps to create positive results in a vast majority of situations.”

                      A message from Charlie on the culture of SVL

                      “At SVL, we strive to cultivate a unique culture that revolves around finding and empowering exceptional individuals. We believe in equipping our team members with the right tools and resources to succeed.

                      As we’ve grown the business, we have deliberately maintained a small firm culture, fostering an environment where collaboration thrives. We encourage open dialogue and promote a sense of comfort among our employees, allowing anyone to ask questions and seek guidance from anyone else, regardless of their level within the organization.

                      We foster a workshop-like atmosphere where everyone’s contribution is valued. Presenting your work to another individual or a group of teammates provides a platform for collaboration, where ideas are shared, dissected, and improved collectively. We firmly believe in the power of mentoring and provide various avenues for both formal and informal guidance. Whether it’s through structured training programs or casual conversations, we encourage team members to discuss a wide range of topics, from work-related successes or issues to everyday personal life topics.

                      In summary, our culture is built on the foundation of attracting exceptional individuals, empowering them with the necessary tools, and fostering a collaborative environment where mentorship and growth thrive. We are committed to creating an atmosphere where every team member feels supported, valued, and encouraged to reach their fullest potential.”

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                      Al Gramse

                      Vice President of SVL Service Corporation

                      Al Gramse has been in the HVAC industry for over 30 years. He began as a service technician.  Then over his career worked in technical support, building automation, then service manager prior to his current role.

                      How did Al end up in the HVAC industry?  “After high school, I took a couple years to figure out what I wanted to do.   Where I was working at the time, a grumpy old coworker, who I didn’t get along with, walked up to me and said ‘What are you doing here?  Go back to school.’”  I said, “For what?”  He said “There’s a tech school down the street.  Go down there and pick something that interests you”. Then he walked away.  That weird interaction, with someone I didn’t get along with, sent me down a 30-year path in the HVAC industry.   Never underestimate the potential of a little encouragement.   Even if it is from a strange source.

                      Al has been with SVL for 15 years and is the head of our SVL Service division. “The people here are some of the best in the industry,” Al says. “A bunch of team-oriented, knowledgeable, go-getters.” His personal mantra is “figure it out,” “Do a little fact-finding on your own. Use your own brain before you use someone else’s. But know when to ask for help.” he prescribes. “It’s amazing what you can accomplish on your own if you dig in a little bit.”

                      Outside of work, Al has lots of outdoor hobbies, including hunting, fishing, and motorcycling, though his favorite pastime is simply hanging out with family.

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                      Jennifer Roach

                      Director of Marketing, Events & Administration

                      More than just a creative director, Jen brings 30 years of marketing and leadership magic to SVL. Her journey began in the trenches of graphic design, quickly evolving into crafting eye-catching campaigns for iconic brands like Target, Gabberts, Gander Mountain and Camping World. As a seasoned director and agency veteran, she honed her skills with recreational vehicle giant Parts Unlimited before leading creative teams at HOM Furniture and, ultimately, landing at SVL during a crucial growth phase.

                      Jen thrives on "servant-leadership," empowering her team and fostering a culture of trust and mutual respect. "It unlocks their potential, fuels creativity, and leads to work we're all proud of," she says. "I want my team to care, collaborate, and push boundaries together."

                      When not shaping impactful campaigns, Jen enjoys weekend adventures with her husband, Scott, and son, Crew. Their lives are a tapestry of shared passions, from bike rides and baking experiments to cheering on Simley High School wrestlers. And with her recently built forever home in Cottage Grove, her free time now includes a new, thrilling chapter: weekend renovation warrior!

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