In the food industry, eccentric hemispherical valves have many applicable scenarios. In terms of sewage treatment in food factories, it can be used for sewage pipeline treatment, which is effective for mixed flow transportation that is prone to scaling and solid precipitation, such as controlling the discharge of sewage generated during food processing. In addition, in the food production process, eccentric hemispherical valves are suitable for conveying related media, such as the transportation, cutting, and adjustment of some fluid raw materials involved in food production.

1. Structural and performance advantages

Flow channel design: Adopting a straight through structure, the flow channel is unobstructed and there will be no dust accumulation or blockage, which can ensure the smooth transportation process of the food industry and avoid the accumulation of impurities that affect transportation efficiency and food quality.

Sealing performance: The sealing pair is made of Co-Cr-W alloy material and has undergone special heat treatment, making the valve resistant to erosion and wear. Its eccentric spherical surface has automatic compensation performance. By adjusting the bolts on the worm gear, the sealing pair can still achieve resealing even under certain wear, ensuring that there will be no medium leakage during the transportation process and guaranteeing the hygiene and safety of food production.

Bimetallic design: The hemisphere of the valve is made of bimetallic material, with different alloys welded onto the base metal. The valve seat is also welded with corresponding special treatment, and the sealing surface is composed of various types such as anti-corrosion, wear-resistant, and high-strength to meet the needs of different occasions in the food industry. And the valve core of the sealing pair has a compensation amount. When the valve seat wears out and is closed, it can still be reliably sealed by rotating slightly, which extends the service life

Automatic cleaning: It can automatically remove the scale on the valve surface, remove the obstacle of scale when closing, and achieve smooth closing, reducing the trouble of manual cleaning, while also ensuring the normal operation and use time of the valve. It is suitable for the transportation of solutions and other media that are prone to sedimentation and crystallization in the food industry.

2. Corrosion resistance advantage

Material and treatment: The sealing surface is treated with different alloys through welding, combined into a corrosion-resistant type, which can adapt to the transportation environment of weak acids, weak bases and other corrosive media that may exist in the food industry. It has strong corrosion resistance, ensuring the stability and reliability of the valve during food transportation.

3. Working principle

The working principle of eccentric hemispherical valve is the same as that of ordinary ball valve, which relies on rotating the valve stem to make the valve unobstructed or blocked. It adopts the principle of eccentric clamping to achieve the purpose of locking, adjusting, and closing through the transmission mechanism, and the sealing pair is a metal surface ring belt hard surface contact seal. Using an eccentric valve stem, eccentric ball core, and valve seat, the valve stem automatically centers on a common trajectory during rotational motion, and becomes tighter as it closes. Taking the electric eccentric hemispherical valve for food wastewater treatment as an example, the electric actuator receives control signals, drives the valve stem to rotate the ball, and realizes the opening and closing of the valve to control the flow of medium in the pipeline.

4. Examples of related products

316 eccentric hemispherical valve for food factory wastewater treatment: provided by Zhejiang Kezhong Valve Co., Ltd., suitable for scenarios such as food factory wastewater treatment. It is also widely used in various industries such as petroleum, chemical, power, metallurgy, shipbuilding, etc., mainly for controlling, cutting off, and regulating fluids.

Electric eccentric hemispherical valve for food wastewater treatment: with a small flow resistance coefficient, when the sphere is opened, the flow resistance of the medium channel is small, which can save energy and improve pipeline transportation efficiency; The usage time is relatively long, and the ball and valve seat are made of wear-resistant and corrosion-resistant materials. The eccentric design reduces the friction between the ball and valve seat; High control accuracy, the electric actuator can precisely control the opening of the valve, meeting the precise requirements for flow control under different working conditions.