Global leader in
design & manufacturing of
ejectors, vacuum systems, & thermal solutions
Designing & Manufacturing Process & Steam powered Ejector Vacuum Systems Since 1917
Croll Reynolds technology has powered industrial advancement for over 100 years. Our legacy and continued mission: Engineer the best process & steam jet vacuum system and Hybrid system solutions for the world’s most ambitious industrial projects.
We deliver complete life-cycle support — from expert installation supervision to system revamps, troubleshooting assistance, and reliable spare-parts supply — strengthened by specialized on site & remote training programs that empower our clients to operate with confidence and efficiency.
Explore the INDUSTRIES where we are making an impact.
Our Products
The Croll Reynolds name is synonymous with customized vacuum systems, ejectors, surface condensers and heat transfer products around the world. Learn more about the science behind our technology and applications:
- Single & multi-stage steam ejector vacuum systems
- Liquid & Gas-powered Ejector Vacuum Systems
- Hybrid Vacuum Systems (Ejector & Liquid Ring Pump Combination)
- Vacuum Pump Systems (Liquid Ring Pump & Air Ejector & Rotary Lube Blower Combination) *
- Steam Recompression Systems (Multi Nozzle Steam Ejector/Thermocompressor/Booster)
- Power Plant Vacuum Systems
- Process-powered Vacuum Systems
- Refiner Vacuum Systems *
- Flare Gas Recompression Systems *
- Desuperheaters
- Jet Mixer & Circulators
- Heat Exchanger (Surface types & Direct Contact types) *
- Fatty Acid Deodorizer & Bleacher Vacuum System
Designed, built, and tested according to the highest quality standards
By maintaining our time-honored operations in the USA, we ensure that every product benefits directly from our professional insights and unparalleled expertise. Whether you’re establishing a new system or looking to optimize existing process performance, our engineers are ready to realize a reliable, efficient, and cost-effective solution to suit your unique requirements.
Dedicated Design & Development
In-house Testing and R&D Facility
Quality Commitment
Service and Product Support
Global Pioneers
Croll Reynolds’ first strategic sales and service centers in Asia, the Middle East, Europe, and South America were established in the 1970s to grow our presence in rapidly developing industrial markets.
The success of our international expansion can be attributed to an early, conscious effort to promote greater awareness of our sustainable, cost and energy-efficient technology. Our business continues to evolve through the network of relationships that we’ve forged with service providers and clients abroad; best of all, we’ve cultivated a worldwide team of professionals that are knowledgeable and conversant in the markets that we serve.
Learn more about Croll Reynolds’ sales and support offices
Frequently Asked Questions
Croll Reynolds designs and manufactures engineered vacuum systems and heat-transfer equipment — steam jet ejectors, multi-stage and hybrid vacuum systems, surface and direct-contact (barometric) condensers, TEMA and non-TEMA shell-and-tube heat exchangers, desuperheaters, Thermocompressor, two- and three-phase separators, and industrial silencers. Founded in 1917, the company engineers each system from process first principles for refining, chemical and petrochemical, power generation, geothermal, pharmaceutical, food, and pulp & paper facilities on six continents.
Delivering an extensive array of high-performance vacuum and heat transfer systems that are specially designed to satisfy the requirements of various industrial applications is our area of expertise at Croll Reynolds. Our range of products consists of:
- Steam jet ejectors (complete systems, assembled with valves & instruments can be offered)
- Single & multi-stage steam ejector vacuum system (up to 6 stages complete system, assembled with any level of automation, valves, instrumentation can be offered)
- Liquid jet ejectors (liquid motivated & suction could be solids, slush, liquid, or gases)
- Gas jet ejectors (gas motivated & suction could be any gases)
- Hybrid ejector vacuum systems (ejector-mechanical vacuum pump or ejector-liquid ring combinations)
- Desuperheaters with precise engineering (steam atomizing, double venturi, full venturi, fixed nozzle, & venturi types can be offered)
- Process-powered vacuum system for all processes (This system prevents any steam or water contamination)
- Refinery vacuum systems (complete system design, sizing and selection of valves & instrument, full or partial assembly, with design of 3-phase separator)
- Vacuum systems for power plants (ejector systems or hybrid systems, assembled with valves & instruments to achieve any level of automation)
- Flare gas recompression jet ejector system (loose gas ejectors or complete system with pump, separator, valves & instruments can be offered)
- Systems for steam recompression, Thermocompressor or steam jet Boosters
- Heat Exchangers (surface type, direct contact type, hairpin, coil type, etc.)
- Jet mixers & Circulators (aeration, tank mixing, agitation, etc.)
- Sophisticated vacuum chillers (powered by steam ejectors and propriety chiller tank & inline direct contact condensers)
Regardless of your industry—power generation, refinery, chemical processing, or food production, our products are made to provide dependable performance, effective use of energy, and long-term value. For more information about our products you can refer to Ejector & Vacuum System Products page (https://croll.com/products/).
Croll Reynolds serves chemical and petrochemical processing, oil & gas, refining, power generation, geothermal, pharmaceutical, edible-oil and food processing, pulp & paper, metallurgy, fertilizer, and wastewater and environmental treatment. The company has supplied engineered vacuum and heat-transfer equipment to industrial facilities on six continents since 1917, with proven installations across refining, geothermal, chemical, pharmaceutical, and power service. (See Industries & Applications.)
Croll Reynolds engineers, designs, and tests its equipment in the United States from its New Jersey headquarters, with U.S. fabrication through long-standing partner shops. The company also operates manufacturing and partner facilities in India and China for projects requiring faster regional delivery or more competitive commercial terms, all built to the same engineering and quality standards. (See Contact / Global Operations.)
Yes. Our specialty at Croll Reynolds is providing completely customized solutions that are suited to your unique performance, size, and process needs. Precision modeling, cutting-edge simulation technologies, and ideas from our own research and development team are used to build each system from the bottom up. This guarantees that, regardless of the complexity of your application, every unit not only meets but is beyond expectations in terms of efficiency, durability, and dependability. By going to our website’s contact page, “Request a Quote” area (https://croll.com/contact-us/request-a-quote/), you can quickly get a quote for your customized solution.
Of course! By going to our website’s contact page, “Request a Quote” area (https://croll.com/contact-us/request-a-quote/), you can quickly get a quote. Simply include the most important information about your project, equipment requirements, or application in the form. Following submission, your information will be thoroughly examined by our skilled engineering team, which will then swiftly provide you with a proposal that is specific to your needs. It’s a quick and effective approach to begin using Croll.
Yes. Croll Reynolds provides full life-cycle support — installation supervision, troubleshooting, system audits and revamps, performance optimization, spare parts, and warranty assistance — plus on-site and remote operator training. Submit a service request or reach an engineer through the Technical Support / Ask-an-Engineer page.
Yes. Every Croll Reynolds system is engineered to your specific process conditions, capacities, materials, pressure ratings, and site constraints — not selected from a catalog. The company pairs full in-house thermal and mechanical design with rigorous simulation (HTRI, Aspen EDR, HYSYS, PV Elite) and proprietary sizing programs refined over decades, then builds to global code (ASME, PED/CE, CRN, API 660/661, and more). Start a tailored solution through the Request-a-Quote page.
Of course. To identify inefficiencies as well as gaps, our skilled professionals at Croll Reynolds are skilled in auditing and evaluating existing vacuum systems. We provide customized optimization solutions, such as component improvements, retrofitting, and system upgrades. We can change your present configuration to provide long-term value and improved outcomes, regardless of your objectives—whether they are to improve energy efficiency, increase dependability, or conform to revised industry requirements. For submitting your inquiry or if you have any technical questions, you can submit your request to (https://croll.com/contact-us/request-a-quote/)
Yes. Croll Reynolds designs and fabricates TEMA C, B, and R class shell-and-tube heat exchangers — including fixed-tubesheet, floating-head, U-tube, and kettle reboiler types — plus non-TEMA and specialty exchangers such as hairpin/double-pipe, helical coil, falling-film, and HEI-rated feedwater heaters. Units are built to ASME Section VIII Div. 1 & 2 with U-Stamp and National Board registration, in materials ranging from carbon steel through duplex stainless, Hastelloy, titanium, and graphite. (Request a Quote.)
Croll Reynolds is unique because it combines more than a century of technical experience with a science based back by continuous testing of our equipment approach to our vacuum system design and performance. In contrast to many manufacturers, we have full-house R&D and quality control skills, which enable us to provide dependable, tailored solutions for even the most demanding industrial settings.
Some of the main benefits are:
- A global network of sales, support, and service facilities for quick response and customer service
- A track record of success in crucial sectors
- Strict internal procedures for simulation, testing, and validation
- Systems that are entirely customized to meet the most challenging operational needs
- Over 105 years of expertise and testing data
Our extensive industry experience and commitment to innovation guarantee that every Croll Reynolds system, wherever it operates, satisfies the highest requirements for performance, efficiency, and dependability. For more information about history of our company please visit (https://croll.com/about-us/)
Croll Reynolds is headquartered at Six Campus Drive, Floor 1, Suite 101, Parsippany, New Jersey 07054, USA (908-232-4200), with sales and service offices across Asia, the Middle East, Europe, and South America. To reach the engineers directly, use the Ask-an-Engineer form on the Technical Support page or call the number above; the team typically responds within 24 hours.
Yes. Croll Reynolds operates under an ISO 9001 quality management system, and its equipment is built to international pressure and exchanger codes — ASME Section VIII Div. 1 & 2 (U-Stamp with National Board registration), TEMA C/B/R, API 660/661, PED/CE marking, CRN (all Canadian provinces), plus KOSHA, MIGAS, DOSH, MOM, AS1210, GB (China), and IBR (India) for global compliance. This breadth lets CR ship code-compliant equipment to virtually any jurisdiction.
A single-stage ejector compresses suction gas in one step and is used for moderate vacuum (typically to around 75 mmHg). A multi-stage system places ejectors in series — usually 2 to 6 stages — with inter- and after-condensers between stages to condense motive steam and reduce the load carried forward, reaching deep vacuum well into the sub-millimeter-mercury range. Croll Reynolds designs complete 1- to 6-stage systems assembled with any level of automation, valving, and instrumentation.
A hybrid vacuum system combines steam jet ejectors with a mechanical vacuum pump — usually a liquid-ring pump or rotary-lobe blower — so the final stages of compression are handled mechanically rather than with steam. This sharply reduces motive-steam and cooling-water consumption while holding stable deep vacuum across varying process loads, lowering operating cost. Croll Reynolds engineers hybrid ejector–liquid ring systems for refineries, power plants, and chemical processes. (See Hybrid Ejector Vacuum System.)
A surface condenser keeps cooling water and process vapor separated by tube walls, so the condensate stays uncontaminated and recoverable; a direct-contact (barometric) condenser mixes vapor and cooling water directly, giving lower pressure drop, higher heat-transfer rates, and lower cost where mixing is acceptable. The right choice depends on whether condensate must stay clean and on the absolute vacuum the process requires. Croll Reynolds engineers both — including its proprietary X-Type vacuum surface condenser — and selects the configuration against your pressure-drop budget.
Yes, Croll Reynolds offers variety of Circulators and jet-mixers that are submerged in a tank fluid to perform blending, aeration, tank mixing, agitation actions in open or closed tanks. For more information you can refer to our “Circulator & Jet Mixer” page (https://croll.com/circulators/)
Yes, Croll Reynolds offers variety of Circulators and jet-mixers that are submerged in a tank fluid to perform blending, aeration, tank mixing, agitation actions in open or closed tanks. For more information you can refer to our “Circulator & Jet Mixer” page (https://croll.com/circulators/)
Yes, Croll Reynolds offers Jet Heaters that is not an ejector at all, even though it may resemble one externally. Jet heaters provide no pressure increase across the unit and are used to heat a variety of liquids using steam. For more information you can refer to our “Jet Heater” page (https://croll.com/jet-heater/)
Toggle ContentOur team of engineers may be readily contacted by completing the “Ask an Engineer” form found on our Contact page and Technical Support page (https://croll.com/contact-us/technical-support/). Another option is to give us a call at the number provided on the website (https://croll.com/contact-us/). For technical inquiries, whether you’re planning a new project, need assistance for an existing system, or need specific advice, our skilled experts are available and quick to answer.
Toggle ContentTo be informed about the most recent advancements, product releases, and engineering updates from Croll Reynolds, just sign up for our newsletter, which can be found at the bottom of our website. You will receive industry-specific technical articles, real-world case studies, and exclusive insights delivered directly to your mailbox. Croll Reynolds can help you stay informed and on top of trends. You can also visit our News & Articles page (https://croll.com/news-and-articles/)
A shell and tube heat exchanger transfers heat between two fluids using a bundle of tubes inside a cylindrical pressure-vessel shell: one fluid flows through the tubes while the other flows across them on the shell side. It is the most widely used industrial exchanger type, serving as condensers, reboilers, coolers, heaters, and heat-recovery units across virtually every process industry. Croll Reynolds designs TEMA C, B, and R shell-and-tube exchangers — fixed-tubesheet, floating-head, U-tube, kettle reboiler, and specialty configurations — sized rigorously in HTRI from first principles, not catalog tables.
A barometric condenser is a direct-contact condenser that condenses vapor by mixing it with cooling water inside a vertical vessel, while a tall barometric leg drains the condensate and maintains vacuum through a liquid seal. It delivers very low pressure drop and high heat-transfer rates, making it ideal for steam jet ejector systems, vacuum evaporators, geothermal flash condensing, and vacuum distillation. Croll Reynolds invented and refined many of the direct-contact condenser configurations used in vacuum systems worldwide — its barometric condenser is regarded as the reference design in the vacuum ejector industry.
