The Mini type lockable manual diaphragm valve is a precision fluid control device operated manually, featuring an integrated locking mechanism to secure the valve position. Designed with a compact structure and excellent sealing performance, this valve is widely utilized across various industries, particularly in applications requiring high reliability and space efficiency.
Technical Parameters
Size Range: 0.25"–0.75" / DN6–DN15
Pressure Rating: Full vacuum up to 10 bar
Operating Temperature: –10 °C to 120 °C (optional up to 150 °C)
Compatible Media: Water, oil, gas, and other general fluids
Connection Types: Clamp , weld
Body and Internal Materials: AISI 304 / 1.4301, 316L / 1.4404
External Surface Finish: Matte, sandblasted
Internal Surface Finish: Bright polished, Ra < 0.8 μm
Diaphragm Seal Materials: EPDM, FPM, or EPDM + PTFE
Key Features
Locking Function : A dedicated locking system is incorporated at the stem assembly. After adjusting the valve position via the handwheel, which actuates the disc through stem movement, the setting can be securely locked. This prevents unintended displacement caused by pressure fluctuations, mechanical vibrations, or accidental contact, thereby ensuring stable flow control and enhancing operational safety and accuracy.
Miniaturized Design: The valve adopts a highly compact configuration with low volume and lightweight construction, making it ideal for installation in confined spaces such as laboratory analytical instruments, microfluidic systems, and similar equipment.
Superior Sealing Performance: The sealing interface between the diaphragm and seat employs full-face contact, eliminating the need for packing or O-rings. This design minimizes particle entrapment risks and ensures complete isolation of the actuation components from the process medium, preventing cross-contamination and achieving reliable leak-tight operation.
Corrosion Resistance: Both the valve body and diaphragm are available in a range of corrosion-resistant materials, enabling compatibility with aggressive media such as strong acids, alkalis, and organic solvents. This makes the valve suitable for demanding chemical environments.
Ease of Operation: Featuring precision screw-thread actuation, the valve offers smooth and precise control over opening and closing positions. Additionally, its modular design facilitates straightforward disassembly, cleaning, and maintenance, contributing to reduced downtime and improved serviceability.
