First of all,we will do the inspection after each process.For the finished products,we will do 100% inspection according to the customers’ requirements and the international standard.

A solenoid valve is an electromechanically operated valve controlled by an electric current passing through a solenoid coil. When energized, the magnetic field moves a plunger to open or close the orifice, thereby allowing or stopping fluid flow.

Alahot products use special customized chips for reliable control. Contact our sales team to learn more and get coupons.

Consider the following factors:

Fluid type (water, oil, gas, aggressive chemicals)

Working duty cycle (for long-time continuous operation, ask our sales team about 0.5-watt low-power versions)

Pressure range

Temperature and viscosity

Required flow rate (Cv/Kv values)

Voltage and electrical specifications

Valve body and seal materials (brass, stainless steel, plastics, etc.)

Direct-acting valves: The solenoid force directly opens or closes the valve. Suitable for low flow or zero pressure differential.

Pilot-operated valves: Use line pressure to assist movement, ideal for higher flow and higher pressure differentials.

Alahot’s direct-acting valves can also be configured as ultra-low-power (0.5 watt), offering significantly longer coil life than typical brands.

NC (Normally Closed): Valve is closed when power is off, and opens when powered.

NO (Normally Open): Valve is open when power is off, and closes when powered.

The Ingress Protection (IP) rating indicates resistance to dust and water.

For example, IP65 means dust-tight and protected against water jets.

Alahot also provides IP68 underwater versions.

Cv (US) and Kv (metric) represent the valve’s flow capacity. Higher values indicate higher flow under specified conditions.

Most solenoid valves can be installed in any direction unless otherwise specified. For pilot-operated valves, follow manufacturer instructions (often coil upright).

When installing horizontally, position the valve before a pipe bend to reduce water hammer.

Yes. Special designs such as plunger-guided mechanisms or high-temperature coils are available.

Provide your medium characteristics for a customized recommendation.

Possible reasons include:

Undervoltage or unstable power

Debris inside the valve

AC coil vibration

Excessive duty cycle

High ambient temperatures

Alahot’s low-power coil versions do not heat up. Contact sales to learn more.

It depends on operating conditions. Clean fluid systems require minimal maintenance. For dirty or corrosive media, inspect seals and moving parts periodically.

Coil burnout (incorrect voltage)

Clogged orifice

Worn seals

Incorrect pressure differential

Water hammer

Using Alahot’s 0.5-watt low-power coil helps prevent overheating or burnout.

Yes, as long as the replacement coil matches the electrical specifications and housing design.

Yes, we offer food-grade solenoid valves suitable for drinking water systems.

Yes, we provide explosion-proof coils certified by CE or UL for flammable atmospheres.

Yes. Choose chemically compatible materials such as Viton, PTFE, stainless steel, PVDF, UPVC, or CPVC.

Provide your chemical details for verification.