Micro Solenoid Valves, Fluid Control Solenoid Valve For Medical Devices



Keyto is a leading manufacturer of micro solenoid valves. We handle everything in-house, from design and development to production and sales. With over decades of experience, we've perfected our craft and provide valves for a wide range of applications. Our miniature and micro solenoid valves include:

Valve Structures: rocker isolated, direct-acting isolated, and plunger isolated.

Diameters: 0.8mm, 1mm, 1.5mm, 1.6mm, 2mm, 2.5mm, 3mm, 4mm, 4.5mm.

Fluid Wetted Materials: EPDM, FKM, ETP, FFKM, POM, PPS, PEEK, PVDF, PTFE.

Installation Types: tubing, base mounted (manifold integration), threaded (1/4-28UNF, M6, G1/8).

Types of Micro Solenoid Valve

Diaphragm Type Solenoid Valves

The micro diaphragm solenoid valves are compatible with various fluids by using the different diaphragm and valve body materials. Such as cleaning solutions containing sodium hypochlorite and special medical reagents etc.

Pinch Valves

Pinch Valve is an economical part of the equipment that works like a tap. It has an on/off function, to shut off, allow or control the flow passing through it.

Miniature Proportional Valves

Keyto's solenoid proportional valves are widely used in ventilators, GC&MS Instrument, oxygen generators, pressure and flow control, mass flow control field. The orifice size is from 0.08mm to 5.8mm. We believe our proportional valves can meet your diverse requirements and applications.

Solenoid Valve Manifold

The valve manifold can be designed into a variety of shapes, T-shape, circular-shape, and rectangle-shape with one column, two columns and so on. The manifold material is also optional: POM, PTFE, PVDF, PEI, PMMA...

 Solenoid Manifold Collections

Factors Affect Solenoid Valve Operation





Electrical solenoid is acutated by elctrical magnetic

Driven from Cooper wire coil then the applied temperature and voltage are critical.



Solenoids can be compatible with both gas and liquid

Keyto solenoids can be compatible with both gas and liquid, therefore to provide the interface between liquid and gas will be very important for Keyto team to make recommendations.



Keyto have both on/off and proportional solutions

Keyto have both on/off and proportional solutions for customer application in life science, In Vitro Diagnostic and Industry field.

How Does a Micro Solenoid Valve Work?

Keyto micro solenoid valve is divided into three categories from the principle: direct-acting, rocker type, and diaphragm type. And from the difference in valve structure and material and the direction of the difference is divided into six sub-categories: direct-acting diaphragm structure, rocker type structure, and grouping diaphragm type structure. The application can be divided into a standard solenoid valve, a high-temperature and high-pressure solenoid valve, and a pinch valve.

Principle: When energized, the solenoid valve coil generates electromagnetic force to lift the closure from the valve seat, and the valve opens; when disconnected, the electromagnetic energy disappears, and the spring force presses the closure on the valve seat, and the valve closes.

Micro Solenoid Valve VS Miniature Diaphragm Pump

Micro Solenoid Valve

Valve is a control component in the fluid transfer system, with processes such as shutoff, regulation, infusion, backflow prevention, pressure stabilization, diversion, or overflow pressure relief. And the valve does not pump power source can only be furnished.
Miniature Diaphragm Pump

The pump is the power source. The valve is the control element. The power source generated by the pump needs to be controlled with the valve to produce the system pressure, flow, and direction of motion.