Frequently Asked Questions
Products
THEOBORN supplies pneumatic actuators, electric actuators, and the accessories used to automate valves. Pneumatic models include rack and pinion, scotch yoke, stainless steel, and spring-return actuators. Electric models and matching accessories — solenoid valves, limit switches, manual overrides, and positioners — are listed in the catalogs on the Download page.
Selection depends on the valve type and size, the torque the valve needs, the air supply or voltage available, and whether the actuator should fail open, fail close, or stay in place. Send those details with the working medium and we will recommend a model. Torque and dimensions are in the selection manuals on the Download page.
Common accessories are solenoid valves, limit switch boxes, manual overrides, and positioners. Tell us the actuator model and the signal you need (on/off or modulating) so the accessory matches the mounting and the supply.
Ordering
Yes. OEM and ODM builds are available. Share the mounting standard, torque, travel, air or power supply, and any branding or housing requirements. We confirm the build before production.
Send the actuator type (pneumatic or electric), required torque, quantity, and destination. For accessories, include the actuator they will be mounted on. You can reach the sales team from the contact page, including the regional manager for your area.
Shipping and support
Production is at the Wenzhou factory: NO.119, 4th Road, 3rd Avenue, Binhai Industrial Zone, Economic and Technical, Wenzhou City, China. THEOBORN also has an office in Houston, Texas. The quotation states the shipping point and when the goods can be ready.
Open the Download page. Each card is a catalog or selection manual published for customers.

