
Valves for petrochemical applications
Efficiency, value and cost optimization
Today’s petrochemical producers face ever-increasing regulatory, environmental and performance demands. Now, more than ever, you need more than just a valve supplier. You need a reliability partner who offers deep application knowledge with a complete offering of technologies, customer support and services.
Your partner in petrochemicals
With over 65 years of valve engineering experience behind us, our products are famous for their reliability. We offer you a single-source solution for efficient running of your plants, ensuring trouble-free operations. Every valve we sell is backed by our comprehensive service including technical training, experienced applications assistance, full maintenance and repair, and support. Valve installation is only the beginning. We understand the complex demands of petrochemical processing and are trusted for our expertise, built up over more than half a century of product development and successful partnerships.
Our valves help in the manufacture of petrochemical commodities including ethylene, propylene, polyolefins, aromatics, and associated by-products such as ethylene oxide (EO), ethylene glycol (EG), monoethylene glycol (MEG), purified terephthalic acid (PTA) and many more.

Ethylene and propylene processing
Steam cracking plants, which produce ethylene, are divided into three sections which together represent a very demanding environment. Propane dehydrogenation uses propane to produce high-quality propylene. Our valves offer the highest reliability throughout every step of the demanding process.

Polyolefins and polymers processing
Polyolefin technologies include gas-phase, slurry, high-pressure, mixed-phase, and solution processes. Our valves have been developed to operate in extreme conditions, dealing with an abrasive flow media at very demanding cycling requirements.
Aromatics: Benzene, toluene & xylenes (BTX)
Aromatics complexes are used to produce benzene, toluene and xylenes. These products are extremely dry and create surface friction. Our valves ensure protection against erosion by providing suitable coatings for trim materials.
P-Xylene separation valves
Our metal-seated rotary ball valves are hard-coated and low temperature compatible, minimising friction and wear. Furthermore, quick response and high cycle compatibility is ensured with the Neles SwitchGuard™ controller.
Benzene and toluene extraction valves
In this process, valves must be able to withstand half- or full vacuum conditions, as well as ensure accurate emission control due to the flow medium’s toxicity. Our triple-eccentric butterfly valves boast a robust design, resulting in extended service life while reducing material and piping costs.
Smooth petrochemical projects
- EPC FEED phase:
Close cooperation with end users, process licensors and FEED EPC’s to meet all project requirements and specifications. - EPC bidding phase:
Strong project knowledge supported by modern digital budgetary price estimation tools and global presence. - EPC awarded phase:
Full product coverage, engineering support and digital tools from single supplier. - EPC execution phase:
Fully documented engineering know-how. - EPC commissioning and start-up phase:
Field service support and consultancy to optimize operational spare part availability.
Technologies and services for better performance
- Reliable and accurate solutions for control, on-off and emergency shutdown applications from the industry’s widest valve portfolio.
- Easy, safe and reliable performance with solutions such as intelligent valve controllers, advanced diagnostics software and loop tuning.
- Comprehensive expert services available globally, from commissioning and start-up support to predictive maintenance planning.
Insights into petrochemical applications

Thriving in demanding petrochemical applications
The petrochemical industry presents valve solutions with demanding applications and operating environments. Reliable flow control solutions are vital in terms of both process quality and operational safety. Neles offers a full range of flow control solutions from valves and actuators to intelligent valve controllers for the wide range of petrochemical processes and applications.

Increase polymerization process efficiency with reliable valves
Petrochemicals have seen tremendous growth in the last decades and many studies suggest that there will be an increasing focus on petrochemicals in the future as well. While the Covid-19 pandemic impacted the demand in the industry, it also saw a surge in the usage of polymers for example in the medical and packaging industry. Demand for masks, personal protective equipment’s, etc. increased while demand in e-commerce and many people preferring packed foods increased demand in the packaging industry.

Selecting valves for an ethylene plant: what is the right choice?
Running a reliable and competitive ethylene plant in an ever-growing ethylene production market is a matter of overcoming many challenges. However, choosing valve solutions that offer maximum reliability, safety and performance for your application is the first step to success.

LNG processing and intelligent valves for a demanding service
The demand for natural gas is increasing globally due to its clean-burning characteristics, which is especially true for producing electricity and many industries are looking into LNG as an alternative, cleaner source of energy. For LNG producers the difference between running safe, profitable plants often comes down to choosing flow control partners with the experience and knowledge to get the job done right.