Which control valve best suitable for slurries?

Pinch valve: ideal for abrasive slurry The reason pinch valves are ideal is that they are one of the only self-cleaning valves. The rubber sleeve inside the valve body is simply an extension of the pipeline when the valve is in the open position.

What valve is best for lime slurry?

Pinch valves
Pinch valves are a good solution for lime slurry service because they have a straight-through design with no crevices or cavities for material collection. A pinch valve is a very effective device that has a self-cleaning effect on scaling materials.

Which hydraulic valve is used for slurry application?

For example, for low temperature and low pressure slurries, diaphragm or pinch valves are typically used. For heavier duty slurries with high temperatures and pressure, the valves become more specialized.

What is a full port valve?

A full port or sometimes called full bore, ball valve has a straight flow path where there is not a reduction of flow as it travels through the valve. In other words, the internal diameter of the pipe or tubing at the inlet and outlet of the valve has the same diameter as the interior of the ball valve.

What is a sluice gate valve?

The gate that controls a sluice is a valve known as a “sluice gate.” These valves are designed to seal in one direction and commonly are used to control water levels and flow rates in rivers and canals. They also are used in wastewater treatment plants. The most common type is a vertical rising sluice gate valve.

Is milk of lime abrasive?

Pumping considerations Lime chemical is strongly alkaline and very abrasive as the powder chemical format is insoluble in water and the particles will have a wearing effect on moving parts where there is friction and velocity.

How does a pinch valve work?

A pinch valve is a 2/2-way valve designed to shut-off or control the flow of corrosive, abrasive or granular media. It utilizes pressurized air to open or close the valve. The flexible internal rubber sleeve in the valve keeps the media isolated preventing the risk of contamination.

Which is better ball valve or needle valve?

When a high degree of accuracy and control are important, it’s better to stick with the needle valve. Two prime examples of areas where precise flow regulation is necessary and needle valves are the better option, are vacuum systems and metering systems.

What is a V ball valve?

V-ball valves feature a quarter turn (90°) ball rotation, allowing them to operate and shut off at much higher working pressures. Because of this, smaller lower torque actuators can be used, which results in cost savings and higher efficiency in the user’s application.

What type of slurry valve should I Choose?

The particular type of slurry service has a significant effect on the type of valve selected; therefore cost should NOT be the deciding factor. For example, for low temperature and low pressure slurries, diaphragm or pinch valves are typically used.

Are scaling slurries harmful to valves?

Certain types of valves can be harmed by either abrasive or scaling slurries. The reason lies in pockets or cavities in the valve structure that allow for material accumulation and hardening in these areas. Another factor that has a negative impact on valves is the use of reduced port valves which restrict flow and increase velocity.

What are the forces that impact slurry valve performance?

Slurry applications require valve manufacturers and engineers to carefully consider three primary forces that impact how the valve will function overtime: Valve gates and seats must be made of materials that can withstand the process conditions. Is it metal-to-metal or metal-to-rubber contact?

What are abrasive slurries and how do they affect processes?

Abrasive slurries are determined by their properties, and cause significant wear on process equipment. Slurry applications require valve manufacturers and engineers to carefully consider three primary forces that impact how the valve will function overtime: Valve gates and seats must be made of materials that can withstand the process conditions.