Generally, a chemical proportional flow control valve is specifically designed to make sure the safety of the chemical industry. Digital pressure valves are used in different industries for chemical and production precision in the medium. These include large printing companies, electroplating, or commercial disinfection. The most important aspect of the proportional needle valve is that they are resistant actually to forceful chemicals including acids, bases, or solvents. Only then the required protection can be ensured.

Pneumatic needle valves for adjusting the flow rate:

A needle valve usually has a little opening and a needle-shaped, threaded valve piston in the system. These pressure regulator valves can be used to specifically adjust the flow rate which must be larger or smaller that depends on the process and can be controlled between 0 and 12 liters per minute in the medium. The needle fluid control valve is designed to stop bubbles that are formed when slightly dense liquids are used.

Working of proportional flow control valve water:

In a digital control valve, the restrictor is required by a signal from a regulator which is called an actuator. A proportional solenoid valve flow control operates a solenoid as an actuator for variable valve positioning in the system.

The special function of these pressure regulator allows to keeping work to be taken out safely. With this safety characteristic, a needle valve is closed manually and fixed in this position. Accidental opening of proportional needle valve during maintenance work can thereby be avoided.

Areas of application in the chemical industry: 

A proportional needle valve is used in the application of assertive chemicals such as acids and alkalis, as well as solvents for industrial disinfection or dissolving printing ink, which can attack seals. Pneumatic proportional flow control valve is designed for the chemical industry that are especially appropriate for use in the following industries:

• Fertilizer
• Plant protection
• Varnishes, paints, and printing inks
• Professional cleaning and hygiene
• Textile, leather, and paper auxiliaries such as special chemicals like auxiliaries or finishing materials help the manufacture, processing, finishing, or care of textiles, leather products and paper
• Adhesives

Features of chemical proportional control water flow valve:

• A new kind of principle ring on the piston rod to make sure a steady sealing surface by stoping the lateral play of the valve seat. This raises the service life of the seals of pneumatic proportional flow control valve and decreases particle formation thanks to a regular working surface.
• The special membrane strategy ensures soft opening and closing of the proportional needle valve, which stops the formation of microbubbles.
• The housing fluid control valve is designed for evenly flowing with tiniest internal dead spaces. Combined fittings stop residual liquid from gathering in the pipe lines.
• A damping disk fascinates the force of the piston in the proportional control water flow valve and thus minimizes the appearance of particles because of friction.
• The membrane in the needle valve is contained by a shock absorber so that it bends as small as possible, which provides high back pressure resistance and durability.