Humphrey is a professional American manufacturer of pneumatic components, founded in 1901 and headquartered in Kalamazoo, Michigan. With over 120 years of expertise in pneumatic control technology, its products are certified to ISO 9001/13485 standards, with 96% of the supply chain originating from the United States. Renowned for high reliability, precise flow control, and corrosion-resistant designs, Humphrey's components are widely used in industrial automation, medical equipment, and advanced manufacturing sectors.
Core Design Innovations
Direct-Acting Poppet Valve Structure
Electromagnetic force directly drives the valve core, eliminating the pilot chamber structure to prevent jamming caused by media impurities, extending maintenance intervals by 50%.
Multi-Functional Port Configuration
Three ports (normally closed/normally open/common port) support flow diversion, selection, or bidirectional filtration functions. Conversion to a two-way valve is achievable by inserting plugs.
Silent and Durable Design
The electromagnetic coil features Class B insulation encapsulation, eliminating AC humming. Fluororubber seals deliver over 1 million cycles of lifespan under operating conditions from -20°C to +60°C.
Typical Application Scenarios
Industrial Automation
Controls reciprocating motion of pneumatic cylinders (e.g., gripper positioning in packaging machinery), compatible with SMC/Festo standard pneumatic systems.
Medical Equipment
Facilitates gas pathway switching in ventilators, certified to ISO 13485 medical standards and meeting sterile environment requirements.
Environmental Protection & Energy
Used in acid pickling line chemical delivery (PTFE valve body optional) and hydrogen regulation valves for fuel cells, with corrosion resistance rated at C4.