Visit and request live test run video and test report, Industrial Sol Pte Ltd Singapore, Jurong East - isolonline Industrial Sol Pte Ltd is not an authorized distributor for Puls products and parts. OSG150/AX7 TLF Stec Floline SEF-21 Mass Flow Controller Industrial Gas N2 O2 Flow The Stec Floline SEF-21 Mass Flow Controller is a precision instrument designed for accurate and repeatable gas flow control in industrial applications. While a dedicated datasheet is not publicly available, product listings and general documentation for similar Stec models reveal key features. The device automatically regulates the flow rate of gases like N2, O2, and Air, maintaining a stable flow regardless of pressure fluctuations. With a fast response time, this mass flow controller is suited for critical processes in manufacturing, heat treatment, and semiconductor industries. It is commonly found as a used or "new old stock" item. Stec Floline, SEF-21, Mass Flow Controller, MFC, Gas Flow Control, N2, O2, Air, Industrial Automation, Semiconductor Manufacturing, Flow Meter, Stec SEF-21 specifications ** 30 Days Free Return. Have some marks and scratches due to old stock. All the pictures are Organic, and this part is physically in our stock. **Revive Machines, Revitalize the Planet** *Our commitment to environmental responsibility.* We understand the significant environmental impact of industrial operations, particularly CO2 emissions. To mitigate this, we prioritize sustainable practices such as offering refurbished parts. By recovering and restoring used components to industry standards, we significantly reduce the carbon footprint compared to manufacturing new parts. We're actively working to minimize our environmental impact through responsible sourcing and sustainable repair techniques. Condition and Details: This is a Use item in good condition. Not In the Original Packing No Accessories / Cables or probe (only what showing in actually given pictures and in the description). Old Stock. Shipping: Usually, we ship same business day, subject to clear funds into our account Standard order processing time is 2 to 4 business days Item will be packed as per International Standard, International Orders: DHL / SingPost / EMS * International buyers pay all custom, duties, taxes brokerage fees at their end Warranty and Returns: Warranty: Free 30 Days Money Back or Replacement, Seller pays return shipping. Product Returns: Returns: Return to Base Warranty, Any type of power failure/burn / physical damage / tempered seal will void the warranty. Payment: Payment Methods: PayPal Credit Cards Wire-transfer: Kindly contact us for payment instructions International buyers without PayPal: Kindly contact us before bidding About Us: We deal in Semiconductor Wafer Handling Parts/Components/machinery and types of equipment. A Verity of Industrial Automation Equipment and Parts. Industrial PCs, PLCs, HMI, Controllers, and Sensors. Industrial robotics, Data Acquisition, and Test Measurement. Industrial Single Board Computers. Marine Parts / Equipments. Oil Gas and offshore station. Lab and Research Equipments. We Source, We Refurbish, We Service and We also Repair ?please contact for any further detailed inquiries.