SAMSON manufactures control valves, butterfly valves, and modular automation units for use in all areas of process engineering as well as self-operated regulators for simple control systems with a constant reference variable. Sophisticated transmitters, controllers, and automated systems are also part of the SAMSON product range. Solutions from the SAM DIGITAL product line have been added for smart networking of components and systems in process automation to take on the challenges posed by the growing digitization. Together with the SAMSON subsidiaries AIR TORQUE, CERA SYSTEM, KT-ELEKTRONIK, LEUSCH, PFEIFFER, RINGO VÁLVULAS, SAMSOMATIC, SED, STARLINE, and VETEC, SAMSON offers a product portfolio to meet all industrial process requirements.

Company details

Weismüllerstraße 3 , Frankfurt am Main , 60314 Germany

Locations Served


Business Type:
Industry Type:
Chemical & Pharmaceuticals - Petrochemical
Market Focus:
Internationally (various countries)
Year Founded:
Over 1000
$100,000,000 US - $1,000,000,000 US

This company also provides solutions for other industrial applications.
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The history of SAMSON is filled with the spirit of invention. It started in 1907 when the company was founded by Hermann Sandvoss. His first patent marked the beginning of a development which still today represents one of the company's main product lines: self-operated regulators.

Since 1916, our manufacturing plant and head office have been located on the river Main in Frankfurt, Germany. Here, the product development and manufacturing take place as well as administration and warehousing.

The Frankfurt headquarters and the affiliated companies employ and train 4,000 highly skilled specialists with a genuine commitment to SAMSON.

The reason for this loyalty to SAMSON can be found in the sound working environment. There are still old ties between the descendants of the original owner and many of the employees, whose average length of service exceeds 30 years. The progressive, yet traditional management team is committed to the name SAMSON and the quality in technical competence and partnership it stands for.


SAMSON AG in Frankfurt serves as the headquarters for an international group of companies. The mission is to offer customers across the world the best service possible as well as to open up and develop new markets. Exporting SAMSON products and know-how plays a key role. Design flexibility and customer proximity are crucial factors in SAMSON's success around the world.

With over 50 mostly independent subsidiaries and more than 200 representatives or engineering and sales offices, SAMSON is on hand to provide local customer service all over the world. Highly trained personnel carry out assembly and service work on site. A well-tuned logistics system assures delivery on time. Production facilities, which develop and produce special products for regional markets, are located in several European countries as well as in Japan, China, India and the United States.

An example of SAMSON's international presence is the North American subsidiary located in the world's largest petrochemical center in Houston, Texas. On almost 5,000 square meters, SAMSON Controls Inc. stocks common products and assembles control valves and regulators for customers in the chemical, petrochemical, pulp and paper, HVAC, and food and beverage industries. For professional advice, two highly qualified teams and their representatives provide responsive support for North America.

Here, as anywhere in the world, SAMSON continues to prove that the cooperation between a central head office and a network of subsidiaries maximizes the efficiency and strengths of the entire group. This allows all innovative and ambitious developments to be combined into a successful unit to meet customer demands.


Any SAMSON product is developed in-house from the initial concept right through to the production stage. SAMSON's investment in R&D is considerably higher than the average for the industry, the objective behind it being to develop products that are tailored to the markets and offer extraordinary efficiency and value for money.

From the beginning of the design phase, we remain in constant contact with the customer to ensure that the products are best suited to the practical applications. Of similar importance is the cooperation with the production department and the field engineers outside the company.

SAMSON combines mechanical and electric components to ensure that the products are up to the control tasks of the future. SAMSON places prime importance on developing reliable, easily maintainable and environmentally friendly products.

CAD systems are used to design new products. They provide three-dimensional drawing and a working simulation that allows product testing while still in the design stage.

In everyday use, many SAMSON products, e.g. valve components, are exposed to the most stressful applications and highly aggressive media. As a result, laboratory testing for corrosion resistance and tight shut-off is of utmost importance to SAMSON.

For high testing efficiency, the laboratory uses NC machines linked to the CAD system at the design office.

The fluid-mechanical properties of all SAMSON products are optimized on modern test stands with automated test routines. The resulting data are used to develop mathematical modeling methods and optimize applicable standards.

These measures allow SAMSON to meet the highest expectations and customer demands.


The ideas from research and development are turned into products by the SAMSON manufacturing division to exceed customer requirements.

One of the design criteria is the modularity and interchangeability of standard SAMSON components. SAMSON offers a great variety of modular products. For example our standard valve series, available in seven basic nominal sizes offers 20,000 different combinations with individual characteristics.

Flexibility in accommodating specific customer requests and fast delivery give the customer an additional advantage that has its roots in the SAMSON marketing strategy. Due to detailed production planning and logistics, we have been able to reduce the production lead times to only a few weeks even for special product versions.

SAMSON has been continuously upgrading the manufacturing process to be more cost effective and environmentally friendly. In addition, product reliability continues to increase while the production time has been reduced.

The computerized galvanizing process has a capacity of 9,000 components passing through 40 stations. The automatic priming process handles up to 10,000 kg (14,000 lbs) per day. The resulting effluent passes through our own treatment plant that meets the most stringent government standards.

Equally high environmental standards are reached in the paint shop with its automatic powder coating line. This process uses environmentally friendly epoxy and powder coatings.

It is now standard practice at SAMSON that machining centers are used in the production of valve bodies. Even valves with a nominal size of DN 400 (NPS 16) can be handled completely in this type of production center.

All procedures and equipment, including the newest types of welding robots, are integrated into a computer-driven system that ensures constant high quality of all SAMSON products.


Recognizing that investment in quality is the best investment possible, SAMSON's primary objective is to maintain the highest quality standards. Quality, as a symbol of excellence in products and services, is the most important element of the SAMSON company policy.

Of primary importance is the total quality management system, which focuses all efforts solely on the customer. In order to fulfill their expectations, a system of continuous quality control has been established. It greatly exceeds checking the product specifications listed, which is due to the individual competence, commitment and feeling of responsibility of each employee. This system includes such diverse fields of operation as practical design, incoming inspection, preventative maintenance, workplace safety and environmental protection.

SAMSON's quality management system is modeled according to the international standards ISO 9000 to 9004 and was certified already in 1990. This certification is constantly monitored, both internally and externally, by auditing the entire process from beginning to end. During these audits, the most modern measuring and testing methods are used to ensure the constant accuracy of results.

SAMSON employs, for example, CNC-driven three-dimensional coordinate measuring systems in its quality control of materials and products.

In the material testing stage, state-of-the-art methods e.g. as spectral analysis, ultrasonic testing or surface crack detection are used. At the final testing stage of control valves, computer-driven test rigs are employed, which have been specially developed for this application by SAMSON and SAMSOMATIC.

The primary objective of an efficient business process in a manufacturing plant is to ensure constant product quality assurance. This will be reflected by fewer nonconformances, a better product and higher quality of workmanship performed by a more knowledgeable employee, which subsequently means satisfied customers. SAMSON considers its total quality assurance management system the essential philosophy in ensuring a safe and sound future.