Who We Are

Located in the heart of Boston's high tech community, MarcWorks first earned a reputation for designing and building the best quality, ultra-high purity bellows gas valves for semiconductor applications. MarcWorks then pioneered a unique diaphragm valve specifically engineered to improve the equality and efficiency of sanitary processing systems used in the biopharmaceutical industry. Today, MarcWorks is meeting the performance requirements of many users of high-purity engineered components and fabricated assemblies.

What We Do

MarcWorks is a proven innovator and reliable source for sanitary valves. All major components are manufactured in MarcWorks' own facliity using precision CNC 4-axis milling equipment. Valve bodies are mechanically polished and electropolished. Pharmaceutical and biotech valves are assembled, cleaned, and tested in an isolated clean room. MarcWorks can provide a large variety of flow paths and up to six or more ports to meet all mixing and diverting applications.


MarcWorks sanitary valves meet ASME BPE-2005 standards for bioprocessing equipment and are FDA compliant for the most extreme application in a variety of industries.


MarcWorks warranties each engineered sanitary diaphragm valve to operate within its design specification and to be free of manufacturing defects. A noncomforming valve will be repaired or replaced by MarcWorks when returned within one year of original delivery.