Month: October 2019

Pressure Reducing Valves in Hydraulic system

Valves are considered to be the essential components in the hydraulic system. A valve that maintains lower pressures in the hydraulic system is called a pressure-reducing valve. Valves are considered to be the crucial components in the hydraulic system. A valve that maintains lower pressures in the hydraulic system is called a pressure-reducing valve. It determines the upstream main system pressures. A pressure-reducing valve is an open, two-way valve that allows system pressure fluid to flow it until a set pressure is achieved downstream. Pressure reducing valves then shifts to throttle flow into the branch. SKG Pneumatics is the best pneumatic company that is the largest suppliers of industrial valves in Delhi.

Basic components of Pressure reducing valves

The main components of pressure reducing valves include Adjusting screw, Adjusting spring, Diaphragm, Inlet port, Valve Disk, Valve stem and Outlet port.

Difference between pressure safety valve and pressure relief valve

Sometimes people confuse with similar terms pressure safety valves and pressure relief valves. Even though pressure safety valve or pressure relief valve sounds identical but they are different altogether. The difference is that pressure safety valves have a manual lever to activate the valve in case of emergency. However, most Pressure relief valves are spring operated.

Hydraulic pressure control using Pressure release valve

The pressure at which the valve begins to open is called crackling pressure of the valve. However, the pressure at which the relief valve is completely open is full flow pressure. The difference between the crackling pressure and flow pressure is called pressure override.

There is always a risk to life, property and environment while using a hydraulic system. That is why the safety relief valve is required to protect the hydraulic system against overpressure so that the system does not fail.

Classification of the safety relief valve

A type of valve which opens and closes through valve disc due to increase and decrease of pressure, thereby controlling the discharge is called safety valve. They are classified into

  • Low Lift Safety Relief Valve
  • Full Lift Safety Relief Valve
  • Full Bore Safety Relief Valve

SKG Pneumatics is the leading pressure control valve suppliers in India. The company manufactures different types of valves that are used for several purposes. It is also the largest suppliers of industrial valves in Delhi. The company has been manufacturing valves of various types for decades. The company has its office in New Delhi, but it supplies valves in all states of India.

Importance of Check Valves in Hydraulic Systems


A check valve is a mechanical device that is used to prevent backflow in a piping system. In other words, check valves obstruct the fluid flow in one direction and enables unobstructed flow in the opposite direction. The check valve is also commonly known as a non-return valve (NRV) or a one-way valve. 

Check valves have two openings in the body, one for the entry of the fluid and another for an exit. Check valves are largely used in household items, however, they also serve a great purpose in controlling the direction of fluid flow in hydraulic systems. Since there are too many check valve suppliers in India, you need to find the one who provides industrial quality check valves. 

What is a Hydraulic System?

Most industries require a controlled application of force and these operations are usually carried out using electrical or fuel-based machines as a prime mover. However, specially designed enclosed fluid systems can also provide controlled motion and force to the substances. These systems are capable of providing both linear as well as rotary motion and it also allows us to apply high magnitude controlled force. This kind of enclosed fluid-based system that uses pressurized incompressible liquids as transmission media is known as a hydraulic system.

What are Hydraulic Control Valves?

A hydraulic control valve is a device that has the capability to change the opening degree of the fluid flow path. Additionally, control valves are also used to regulate the speed of the fluid flow to the motors and cylinders.

Most common Hydraulic control valves types

  • Directional control valves
  • Pressure control valves
  • Flow control valves

These hydraulic valves can be controlled by manual, mechanical, hydraulic, electric, electro-hydraulic, pneumatic, and input control, on or off fluid flow channels. 

What is the importance of check valves in Hydraulic Systems?

Check valves serve a variety of purposes in hydraulic systems. It is important because: 

  • It blocks pressure spikes
  • Prevents oil lines from draining
  • Blocks oil flow from the accumulator
  • Prevents oil flow from the online pump to the offline pump

Check valves help you prevent backflow in a hydraulic system while control valves help you regulate the speed of the fluid flow in the hydraulic system. With all the different types of hydraulic valves, you need to choose the right one in order to get the job done. 

SKG Pneumatics INC is the top industrial valve suppliers in India. They not only supply check valves, but they also supply other types of industrial valves including control valves. If you’re looking for high resistant valves, then you’re at the right place. Contact us for more information.

Hydraulic Valves – Types and Components

A mechanical device that controls the flow of the liquid, usually by opening and closing is referred to as a valve. The primary purpose of a hydraulic valve is to direct the flow of a liquid medium that will move actuators and loads through the hydraulic system. There are various types of hydraulic valves and it is important to choose the right one to get the best results. 

What are the different types of hydraulic valves?

Hydraulic valves come in a variety of sizes and with different mounting styles. There are three major categories of hydraulic valves namely directional control valves, pressure control valves and flow control valves. 

Directional Control Valves

The primary purpose of a directional control valve is to control the direction of the fluid flow. The three functions performed by directional control valves include stopping the fluid flow, allowing the fluid flow, and changing the direction of the fluid flow. 

There are five types of directional control valves:

  • Check valves
  • Shuttle valves
  • Two-way valves
  • Threeway valves
  • Fourway valves

Pressure Control Valves

A pressure control valve helps in maintaining a set pressure in the hydraulic system. Pressure control valves are used mainly in industries where keeping system pressure below a desired upper limit is crucial such as oil and gas industries. 

There are types of pressure control valves:

  • Relief valves
  • Constant pressure reducing valves
  • Sequence valves
  • Counterbalance valves
  • Over center valves
  • Unloading valves

Flow Control Valves

Flow control valves regulate the flow rate at the throttling point by increasing or decreasing the opening of a hydraulic circuit. The flow rate helps in determining the rate of energy transfer at any given pressure. 

There are five most common types of flow control valves:

Reliable Partner for all types of Industrial Products

SKG Pneumatics INC has been supplying a wide range of industrial products including all types of industrial valves. With the aim of providing the best products to our customers, we test all our products for reliability and durability even in the harshest conditions before delivering it.