The GEMÜ Group develops and manufactures components and systems for liquids, vapours and gases. 

GEMÜ offers a broad range of products for media control and regulation. The portfolio of metal and plastic measurement, control and regulation components developed in-house is unrivaled worldwide. In addition to this, GEMÜ offers engineering and manufacturing services for products such as multi-port valve blocks or medical industry products. They offer a wide range of applications covering numerous industries.  These applications range from sea water desalination, to drinking water treatment and the treatment of water for Injection water. The company also offers high-grade solutions for distribution and dosing applications in the fields of chemical process technology and microelectronics, as well as the beverage industry. Thanks to its expertise, GEMÜ is the world market leader for sterile applications in the pharmaceutical and biotechnology industries.


GEMÜ components and systems fulfill all statutory requirements. Depending on their area of application, they are approved, certified, or comply with a standard regulatory code. Examples of this include product versions with a type examination certificate from the DVGW (German Technical and Scientific Association for Gas and Water), as well as valves, measurement and control systems with 3A, ATEX or FDA Certificates of Conformity.


With just over 50,000 square feet of office, warehouse and manufacturing space, Gemü is committed to the pursuit of quality and excellence in the development, production and manufacturing of engineered diaphragm valves right here in the United States. They strive to consistently provide a level of service exceeding the expectations of there customers. Every inquiry and order is carefully considered so the customer can be offered the most suitable Gemü product to match their requirements. Gemü’s overriding philosophy is to ensure each and every customer contact is a quality experience.


The Williams-Carver Company has been a proud distributor of Gemu Valves for many years. Our services and relationship go far beyond the simple distribution of valves and other equipment. The Williams-Carver Company uses its knowledge of the products to help customers determine which equipment works most efficiently for their product and systems.   The Williams-Carver Company not only sells the products but uses that experience to engineer efficient and durable systems.

GEMU Diaphragm Valves | Manually Operated Sanitary




GEMU Diaphragm Valves | Pneumatically Operated Sanitary




GEMU Globe Valve | Pneumatically Operated Angle Seat


The GEMÜ 554 2/2-way angle seat globe valve has a plastic piston actuator and is pneumatically operated. The valve spindle is sealed by a self-adjusting gland packing or a compact seal cartridge, dependent on the size and version. A wiper ring or the wiper contour of the seal cartridge additionally protects the valve spindle against contamination and damage. This provides low maintenance and reliable spindle sealing even after a long service life.


  • Lightweight valve bodies, saves weight up to 50 % dependent on connection

  • Available as shut off or control valve

  • Standard gland packing suitable for vacuum up to 20 mbar (abs.)

  • Version according to ATEX, CRN, EAC, SIL on request

  • Extensive range of accessories



For more information on these and other GEMU Valves, visit the LITERATURE tab of our Website