Month: November 2019

Solenoid Valve – Working process of solenoid valve

A solenoid valve is an electro-mechanical valve that can be used to control the flow of liquid or gas. The main components of the solenoid valves consist of a valve stem, valve disc, valve body, valve boot, valve seat, stop washer, centring washer, plunger, coil, and a cover nut. It is commonly used in hydraulics & pneumatics to shift two way and 3-way directional control valves and some pressure control valves. The basic function of the solenoid valve is to shut off, distribute, and release fluid.

Working process of the solenoid valves

The main functional components of solenoid valves are the coil, plunger, and sleeve assembly. When the orifice in the solenoid valve is open, then it allows the flow of fluid. However when it is closed, then it prevents the flow through the valve. To open the orifice of a solenoid valve plunger is used, which raises or lowers within the sleeve tube by energizing the coil. Once the solenoid coil is energized, the resultant magnetic field raises the plunger, enabling the flow. When the solenoid coil is energized in a normally open valve, the plunger seals off the orifice, which in turn prevents flow.

Application of Solenoid valves

  • Hydraulic action:- Solenoid valves are designed specifically for controlling hydraulic operations effectively.
  • Controlling air pressure:- Solenoid valves are used for mixing and distributing the air effectively and hence, effectively control the air pressure.
  • Treatment of water:- As it can purify the smallest particles and dust, they can be used effectively in the RO purifier as well.
  • Fuel supply: – A solenoid valve is used in fuel valves to control the oil in vehicles. Highly efficient solenoid valves are leak-proof and can control the flow of oil effectively.
  • Blood analysis instrument:- Solenoid valves are also used in blood analysis instruments. These instruments need to control the flow of the blood properly, and solenoid valves are designed specifically for this purpose.
  • Machines and plant engineering:- Solenoid valves are commonly employed in manufacturing companies or oil refineries. They are often used to control the temperature of heater or furnace, firing systems, etc.

Highly Durable and Reliable Solenoid Valves

Features of Solenoid valves

It consists of a movable armature made of an iron alloy and attached to the valve needle, all sealed into the valve body. The coil is wound around the valve housing that contains the armature. The solenoid valve can be activated by a thermostat as well. Sare used to control the temperature of a refrigerator or a room.

  • Full interchangeability of solenoid from AC to DC.
  • Valves with Zero leaks.
  • Valves with more than 20 million cycles.
  • Clear flow paths give high Kv/Cv ratings.
  • High efficient solenoid valves require less power to operate.

Benefits of using Solenoid valves

  • Solenoid valve has high flexibility due to modular design
  • With SKG you have a wide range of solenoid valves to choose
  • Our solenoid valve has high reliability and a long service life.
  • Solenoid valve has a low environmental impact.

Any requirement for the solenoid valve, feel free to contact us. We as SKG Pneumatics – distributor and suppliers of industrial valves provide a wide range of valves and fire fighting equipment from the best makers of the industry.

 

Difference between Pressure Relief Valves and Pressure Safety Valves

A pressure relief valve is one that is used to limit the pressure in a system within a specific set level. However, a pressure safety valve actuates automatically to release excessive pressure. Relief valve opens only when the pressure reaches the specific set pressure limit and is usually operated by an operator. It does not require operator assistance to release excessive pressure.

The similarity between the pressure relief valve and the safety valve is that they both are spring-loaded valves. Usually, the valve is forced shut by the spring. When the pressure increases, the force of the spring has overcome that forces the valve to open.

Classification of the Pressure Relief Valves

Pressure Relief Valves are essential for controlling the flow rate of fluid, thereby facilitating the practical use of the system and providing additional safety to pressurized vessels or systems. There are three types of Pressure relief Valves.

  • Safety valves: – A pressure valve that is used with compressible gases, steam, and air services.
  • Relief valve: –  A valve that is used in a hydraulic system as pressure over sill devices. They can further be into adjustable relief valves and safety relief valves. They are usually used in naval ships for generating thermal electricity.
  • Safety Relief valve: – A valve that is used either for liquid or compressible fluids in a pressurized vessel is called a safety relief valve. These are generally used in boilers.

Classification of Safety Relief Valves

  • Conventional(spring-loaded):- The main components of traditional spring-loaded safety relief valve are the nozzle, seat disc, disc holder, bonnet, spring, set pressure adjusting screw, body, and blowdown adjustment ring.
  • Pilot operated:-  The main component of pilot-operated hydraulic valve is inlet from the system, orifice, main spool spring, dart, pilot spring, adjustment screw, pilot drain, the skirt of the spool, and
  • Balanced bellows:-  The essential components of Balanced bellows relief valve are nozzle, body, adjusting ring, disk, seating surface, bellows, balanced piston, bonnet, spring, adjusting screw, stem, and cap.

SKG Pneumatics is the best supplier of industrial valves in Delhi. The company has been into pneumatic industries for several years. The company manufactures different types of relief and safety valves that can be used in the industrial production unit. The pressure safety relief valve can prevent damage to property, life, and environment to a great extent and shall be used in every industry for additional safety. The pressure relief valves can be used in pressurized vessels, boiler, and other pressurized systems.