Do you know what are the common problems that can occur with Solenoid Valves?

Learn the common problems that can occur with Solenoid Valves:-

1. Valves don’t open

Sometimes, Solenoid valves may not open due to power failure, uneven pressure, and wrong voltage, dirt under the diaphragm, missing components, corrosion or a coil burn out. Nevertheless, since there are so many causes, you must attempt to slim down the problem in order to fix it. The most vital parts that you must assess in this process are the diaphragm spring, valve diaphragm, flow control adjustment, coil power, valve inlet port, solenoid outlet port, and the valve bleed port.

2. Valves are Partly Close

Valves can also fail to close at times. This can be due to residual coil power, a manual override, damaged armature tube, pressure difference, inverted or damaged valve seats, and some absent components. Be sure you methodically check your wiring, lead connections, components and diaphragm to see what the precise issue is. You can also try to lift the coil slightly to check if an electromagnetic field is present. If ever you have an inverted diaphragm, it would be wise to refit the item correctly before substituting it with a new one.

3. Erratic Valve Sounds

Every time a valve closes or opens up, you might hear a troubling hammering sound, or there can be a buzzing sound heard upon the operation of solenoid valves. These errant valve sounds can be due to the variance in the inlet or outlet pressure inside the system. Water hammering upon valve opening can be due to high liquid pressure roaming through a small pipe bore. Installation of a T-piece pipe before the air can help dampen the noise and reduce the impact. You may also rise the dimensions of your pipe to reduce the speed of your liquid components. Increasing pipe size would be a good way to decrease inlet pressure on the valves as well.

4. Coil Problems

The coil may be burned, melted or can stay cold even with power on. These coil problems can be formed by slow coil armature, wrong voltage, short circuit and high media (gases, liquids, etc) temperatures.

To avoid erroneous voltage supply, be sure to check the compatibility of your coil with the power supply. Check for moisture within and replace if necessary. Replace any damaged or bent armatures as well, and check media compatibility with your valve. Do not forget to move solenoid valves into cooler areas or you may rise ventilation around valves and coil.

Do you require pneumatic products for your production line or factory?

EC Pneumatic & Hardware has over 16+ years’ experience in the industry, enabling us to source the right mechanisms for your pneumatic components in Malaysia based on respective requirements. As a primer pneumatic component supplier in Malaysia, our products are of first-class quality & performance, which makes it easy to fit in your desired workflow. We also carry a collection of leading brands and manufacturers in the industry such as SWISH, CKD, Parker, SMC, ASCO, JISAN and heaps more. Check out our offerings of pneumatic products.

If you’re interested in working with EC Pneumatic & Hardware, contact us today.

To place an order or request for a quote, do contact us & our team of experts will get back to you with their professional advice. 

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related articles & products

Selecting the right pneumatic component or material to suit any pneumatic application is important to ensure a long service life. Read the articles below to know more about it’s specification & features.

Solenoid Valve

An electromechanical controlled valve

Pilot Valve

The driving force on process valves 

Auxiliary Valve

An essential supporting tool for air preparation

Mechanical Valve

A wide variety of valves are available for all types of air systems.

Fluid Control Valve

Transfer of fluid and/or solids in a pipe around a system. 

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