Each Stiefel Solenoid Valve exemplifies the skill and mastery of Stiefel Optics. In our Guangzhou factory, automated assembly lines with vision inspection systems ensure ±0.02mm accuracy for arms guides and critical parts like valve seats. For customers who want white label products, we offer OEM services designed around custom branding and packaging. A partner from Europe designing burners for low-NOx boilers worked with us to design one new solenoid valve for their line, using our R&D specialists to save 20% of the time needed to design it. Precise control of product development cycles while maintaining innovation and quality keeps Stiefel Optics competitive in the solenoid valve industry.