Precise process monitoring through innovative sight glass fittings

Your certified partner for safe and precise process observation.
Developed to the highest standards since 2008 – when quality and reliability matter most.

Sight glass fittings in a row Sight glass fittings in a row

Highest quality for your systems – with ACI Industriearmaturen, you’ll always find what you need.

ACI Industriearmaturen GmbH has stood for German engineering in process observation since 2008. As a certified manufacturer according to the Pressure Equipment Directive 2014/68/EU and DIN EN ISO 9001:2015, we specialize in the development and production of vessel sight glass and flow sight glass fittings. From the chemical industry to energy supply – our tailored solutions ensure the highest quality and safety for your demanding applications. Benefit from our expertise and comprehensive service.

Customized complete solutions for your process plants - your requirements drive us. As a manufacturer, we not only develop and produce first-class valves for process observation, but also provide well-thought-out complete solutions for your plant. Our manufacturing expertise includes sight glasses, flow indicators, and dirt separators. Furthermore, we supply shut-off and control valves, check valves, as well as high-quality sealing systems. In addition, we manufacture fittings and flanges in custom designs and threaded connections to the highest quality standards. For maximum flexibility in your application, we integrate pneumatic, electric, and hydraulic drive solutions into our systems.

Quality is not an option but our standard: We manufacture all components exclusively from certified premium materials that have been specifically developed for pressure-retaining systems. This uncompromising quality strategy, combined with our certifications according to the Pressure equipment directive 2014/68/EU and DIN EN ISO 9001:2015, guarantees you the highest operational safety - even under the most demanding conditions. Let us find the optimal solution for your application together.

Satisfied customers of ACI Industriearmaturen

basf logo
ebora logo
borsig logo
clean ostalb logo
esm logo
Logo of Al Khaleej Sugar in blue with Arabic script.
Logo of Atomic in gray color scheme.
A stylized representation of a tree with roots and branches.
Logo of the Jülich Research Center.
Logo of IFINKOR with a gear motif in blue and yellow.
Logo of INEOS, a chemicals company, with the slogan 'THE WORD FOR CHEMICALS'.
Logo of KSB AG in blue and gray colors.
Logo of Kværner in turquoise lettering.
Logo of LANXESS with the slogan 'Energizing Chemistry'.
Logo of Linde on a blue background.
Logo of MAN Diesel & Turbo SE.
Logo with the text "mein becker's bester" and the slogan "natürlich für mich", in colorful letters and a water droplet.
Logo of miRO with blue letters and a red dot.
Logo of the company mts prozesstechnik in blue and red.
Logo of the Nordic Odenwerke with red dot and lettering.
Logo of the Rexroth Bosch Group in red and blue.
Logo of RheinEnergie, red with black text.
Logo of RWE with simple blue letters.
A blue, stylized pyramid made of hexagons above a symbol that looks like a face.
A simple, stylized dollar sign in black.
Logo of Siemens in blue font.
Logo of the SMS group, consisting of the lettering 'SMS group' and a red and blue symbol.
Logo of the Technical University of Dresden.
Warsteiner logo with the inscription "Since 1753" and the slogan "The only Warsteiner".
Logo of the company EHRFELD Mikrotechnik in blue and gray.
Logo of Equinor in red and black.
Logo of ERA International in gray, orange, and black.
Logo of the Zittau/Görlitz University with a stylized person and the inscription “Zittau/Görlitz University.”
Logo of Canal Sugar with Arabic and English script.
Logo of Polymetrix, a Sanlian Bühler Company, featuring a green geometric symbol.
Logo of "jord" with green, organically shaped elements.
Logo of the company Harald Liebers, specialized in container and apparatus construction.
Logo of Spirax Sarco in blue text.

Our Customers

Success through quality – That's what our customers say

Frank Langohr

Piping Engineer - European Manual Valve Specialist - Ball Valve

I would like to give you positive feedback and thank you for the successful collaboration. As a reliable business partner, you have supported us in the past in the implementation of some special projects in the field of sight glasses…

I would like to give you positive feedback and thank you for the successful collaboration. As a reliable business partner, you have supported us in the past in the implementation of some special projects in the field of sight glasses and filter technology. We were particularly impressed by your competence and efficiency in the realization of individual solutions, especially in the area of special materials and custom constructions. Your expertise and commitment have contributed to our ability to complete our projects on time and with high quality. We appreciate your reliability and the always professional cooperation. It is reassuring to know that we can rely on ACI Industriearmaturen as a partner. We look forward to further successful projects with you and are happy to recommend your services.

Frank Schiere

Founders of Ebora Process Automation

As Ebora BV, we would like to share our extraordinarily positive experience with ACI valves. Recently, we faced the challenge of manufacturing two special tubular sight glasses that must withstand extreme conditions – a working pressure…

As Ebora BV, we would like to share our extraordinarily positive experience with ACI valves. Recently, we faced the challenge of manufacturing two special tubular sight glasses that must withstand extreme conditions – a working pressure of 25... and working temperatures of -101°C to +100°C. These specific requirements far exceeded the usual specifications and necessitated a customized solution that could only be realized through exceptional expertise and technical competence. ACI valves not only accepted this challenge but excelled in it. Thanks to their dedicated team and extensive experience in designing and manufacturing custom solutions, they were able to fully meet our special requirements. Their ability to develop their own design and obtain certification according to PED 2014/68/EU Module H significantly contributed to the success of this project. The collaboration with ACI valves was consistently positive. From the initial conception to the final acceptance by our customer, ACI valves needed only 8 weeks – an impressive timeframe that underscores the efficiency and commitment of their team. Their transparent communication and customer-oriented approach have simplified and improved the entire process for us as partners. We at Ebora BV are proud to have ACI valves as our supplier. Their outstanding performance and reliability have made them a valuable partner we can rely on in the future. We look forward to further successful projects with ACI valves and recommend their services and products to anyone seeking high-quality, customized solutions.

Tony Knothe

Purchase / Procurement - Pipes / Tubes & Fittings

We have always been satisfied with the customer service and technical advice provided by ACI in the past. Regarding the quality of the delivered products, there have been no complaints at any time, and I think the recently challenging…

We have always been satisfied with the customer service and technical advice provided by ACI in the past. Regarding the quality of the delivered products, there have been no complaints at any time, and I think the recently challenging scheduling situation was ultimately handled well.

Anke Börner-Schneidereit

e.s.m. Edelstahl- Schwimmbad- und Metallbau GmbH

Clear view, strong quality! The sight glass fittings from ACI Industriearmaturen GmbH perfectly meet our industrial requirements. Their robust material and clear glass enable precise monitoring and inspection of the water flow. Unreservedly…

Clear view, strong quality! The sight glass fittings from ACI Industriearmaturen GmbH perfectly meet our industrial requirements. Their robust material and clear glass enable precise monitoring and inspection of the water flow. Unreservedly recommended for anyone seeking quality!

George Joseph

Business Development Associate

It’s our great pleasure and privilege to work with ACI Industriearmaturen GmbH for the sight glass requirement for our esteemed clients who are renowned globally for the fertilizer manufacturing and mining. For the last couple of…

It’s our great pleasure and privilege to work with ACI Industriearmaturen GmbH for the sight glass requirement for our esteemed clients who are renowned globally for the fertilizer manufacturing and mining. For the last couple of years ACI supplied sight glasses are highly recommended for their plants and the clients are extremely satisfied with its usage.

Thomas Musch

Plant maintenance seepage water treatment

We first ordered a sight glass for our biology containers, the sight glass was installed and has proven itself, the cleaning of the glass with the wiper blade works well. Now, 4 more sight glasses have been reordered, the ordering…

We first ordered a sight glass for our biology containers, the sight glass was installed and has proven itself, the cleaning of the glass with the wiper blade works well. Now, 4 more sight glasses have been reordered, the ordering process has always worked well.

Marco D'Angelo

Head of Procurement

The tubular sight glasses from ACI impress us with their outstanding quality. Particularly noteworthy are the timely deliveries and the always professional and reliable cooperation, which significantly supports our projects.

The tubular sight glasses from ACI impress us with their outstanding quality. Particularly noteworthy are the timely deliveries and the always professional and reliable cooperation, which significantly supports our projects.

Paul Curado

Project Manager

We have been consistently impressed with ACI's professionalism and dedication. Their proactive approach, attention to detail, and responsiveness to every aspect of the orders placed by JORD Energy have truly set them apart as an exceptional…

We have been consistently impressed with ACI's professionalism and dedication. Their proactive approach, attention to detail, and responsiveness to every aspect of the orders placed by JORD Energy have truly set them apart as an exceptional supplier. The entire ACI team has demonstrated remarkable flexibility, always adapting to our needs and ensuring smooth collaboration throughout the project process. We highly value the partnership we have with ACI and look forward to continuing our successful cooperation.

Matthias Viertel

We would like to highlight the excellent collaboration with ACI Industriearmaturen GmbH. Their team is characterized by high expertise, reliable delivery, and a very professional approach. The products always meet our expectations…

We would like to highlight the excellent collaboration with ACI Industriearmaturen GmbH. Their team is characterized by high expertise, reliable delivery, and a very professional approach. The products always meet our expectations regarding quality and functionality. We particularly appreciate the quick response time and the flexible adaptation to our needs. We look forward to continued collaboration and are happy to recommend ACI Industriearmaturen GmbH.

Audrey Malbrant

Buyer / Acheteuse - Customs Referent / Référente Douane

This is my second urgent order with ACI24 and I can attest to the seriousness and responsiveness of the teams. Thank you again for your very efficient handling and shipping. The parts arrived quickly, perfectly packaged and the quality…

This is my second urgent order with ACI24 and I can attest to the seriousness and responsiveness of the teams. Thank you again for your very efficient handling and shipping. The parts arrived quickly, perfectly packaged and the quality is exceptional.

About us

Since 2008, ACI Industriearmaturen GmbH has been synonymous with customized solutions in process monitoring. As a certified manufacturer, we combine German engineering with personal service.

0
Years of experience
0
happy customers
Main entrance of ACI Industriearmaturen

Have a project in mind?
Speak with our specialists!

Take advantage of our free professional consultation. Our team of experts in Jülich is happy to assist you during business hours.

Require now
Search... Your entries are invalid! Please contact us! Possible working pressure: Required thickness: Maximum temperature: This is a standard sight glass that we would be happy to manufacture for you. This is a sight glass according to DIN This is a sight glass according to DIN , which we would be happy to manufacture for you.