Friday 18 May 2018

Know Your Valve Properly Before Purchase to Get the Best Results


Valves are the automated devices that control or regulate the flow of liquids and pressure inside a framework. They are used in the oil and gas industry, hydraulic machinery and for irrigation and residential uses to ensure a steady and regulated supply of liquid upstream for the efficient functioning of the fluid transport framework or the machine. For this, a double block and bleed valve are used for pressured systems or hazardous fluid processes.


However, it is important to know the type and benefits of the block and bleed valves when undertaking a commercial or industrial project. There are different types of valves, which can be used for various applications and purposes. When it comes to valves, the float valve is considered as one of the most effective as one does not need to monitor/control the inflow of water.

How do block and bleed valves function?

The double block and bleed valve can be operated to control liquid from flowing into a specific component and restrict letting it vent out of the compartment. They comprise a single valve that has two seating surfaces. If the valve is closed, it provides an efficient seal from both parts that enable the liquid to flow out from the cavity between the seating surfaces. This type of single isolation takes place when one of the sides faces extreme pressure.

Different types of block and bleed valves

Different types of block and bleed valves provide various features. In addition, they are known as isolation manifolds or isolation valves. A manifold that features a wide range of valves is helpful for using it in gas trains and several other industrial contexts.

Other kinds of block and bleed valves are:
  •        Single unit DBB
  •         Block and Bleed Needle Valves
  •        Three Piece Non-Standard Length DBB
  •         Cartridge Type Length DBB
From the above-mentioned list, the standard double block and bleed valves are used for chemical injections under excessive pressure setting or for controlling toxic fluid processes. On the other hand, needle valves are used in hydraulic and pneumatic systems.

In contrast, the float valve in the optimal working condition provides the most accurate and reliable results. It is widely used in the toilet, inside the flush tank on the back of the seat.

Major benefits of block and bleed valves

Block and bleed valves are advantageous for averting leakages or mixing of liquids with crucial components. This makes it perfect for use in petrochemical settings wherein there is a requirement of handling and managing harmful waste and other toxic chemicals.

The high-quality interlocking provided in the valve enables the easy flow of the liquid and offers maximum safety in a high-risk environment.

In an industrial setting, valves are regarded as the most effective for bringing operation and production expenses to a minimum. The effectiveness of the valves prevents the requirement of multivalve systems and ensures better operational efficiency.