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DAYANG PRODUCTS

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Our advantage

Enterprise culture

Committed to global energy conservation and security, striving for sustainable human development

Solution

We use our expertise to provide our customers with complete solutions for industrial valves

OUR SERVICES

Professional service team, to provide you with full service, fast problem response mechanism, let your business worry!

DAYANG

Zhejiang Dayang Valve Co., Ltd

Began in 2007 is a set design, manufacturing, sales, service in one of the professional valve manufacturers, we have nea design and development experience. The company has a CNC machining center, and has a casting, machining, welding heat treatment, assembly pressure test, and other production, inspection center. Processing equipment, advanced testing equipment.

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Workshop

Clean office environment, so that Dayang employees have a good working condition, to create more benefits for the company.

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Application

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Chemical Industry

Chemical Industry

Products are widely used in petrochemical, natural gas, petroleum, metallurgy, construction, hydropower, pharmaceutical and other industries

Oil industry

Oil industry

Products are widely used in petrochemical, natural gas, petroleum, metallurgy, construction, hydropower, pharmaceutical and other industries

Hydropower industry

Hydropower industry

Products are widely used in petrochemical, natural gas, petroleum, metallurgy, construction, hydropower, pharmaceutical and other industries

Metallurgical industry

Metallurgical industry

Products are widely used in petrochemical, natural gas, petroleum, metallurgy, construction, hydropower, pharmaceutical and other industries

Pharmaceutical Industry

Pharmaceutical Industry

Products are widely used in petrochemical, natural gas, petroleum, metallurgy, construction, hydropower, pharmaceutical and other industries

News

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There are many business opportunities in the valve market. Chinese enterprises are still the role of migrant workers.

There are many business opportunities in the valve market. Chinese enterprises are still the role of migrant workers.

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2024-04

Gate valve installation and use

1. gate valve is a block valve, the sealing performance is not as good as the stop valve. The main "duty" of the gate valve is to "cut off the flow", as well as to a small resistance: "freewheeling". It should not be used to adjust the flow and pressure of the medium, such as long-term adjustment, the sealing surface is easy to be washed and worn by the medium, affecting the sealing performance. The temperature and pressure of the medium of the gate valve should be paid attention to the reliability of the use. At high temperature and high pressure, the gate may die due to temperature changes, and the non-sealing phenomenon is easy to occur due to uneven temperature of the medium. Wedge type but the gate valve is particularly obvious.

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2024-04

What is the difference between cast iron valves and cast steel valves

The main difference between cast iron and iron steel valves is that the carbon content is different, and the carbon content directly affects the strength and plasticity of steel. Carbon steel is also called carbon steel, iron-carbon alloy with carbon content less than 2% WC. In addition to carbon, carbon steel generally contains a small amount of silicon, manganese, sulfur and phosphorus. According to the purpose, carbon steel can be divided into three types: carbon structural steel, carbon tool steel and easy-cutting structural steel. Carbon structural steel is divided into building structural steel and machine manufacturing structural steel. According to the carbon content, carbon steel can be divided into low carbon steel (WC≤ 0.25%), medium carbon steel (WC0.25%-0.6%) and high carbon steel (WC 0.6%) According to the content of phosphorus and sulfur, carbon steel can be divided into ordinary carbon steel (high phosphorus and sulfur), carbon steel (low phosphorus and sulfur) and steel (low phosphorus and sulfur). Generally, the higher the carbon content in carbon steel, the higher the hardness, the higher the strength, but the lower the plasticity.

22

2024-04

Working principle and characteristics of butterfly valve

The butterfly valve is based on the rotary valve to open and close the valve, driving the disc plate to rotate. In the cylindrical channel of the butterfly body, the disc rotates around the axis, mainly rotating the plate 90 degrees. When the flow control panel reaches 90 degrees, the valve is fully opened, and the medium flow can be adjusted by changing the angle of the valve. Usually installed in the diameter direction of the pipe. The butterfly valve and the stem itself have no locking function. In order to effectively control the flow, a worm gear reducer is required. The butterfly valve with worm gear reducer can not only automatically lock the butterfly valve, but also change the working performance of the butterfly valve and adjust the medium flow more accurately.

A set design, manufacturing, sales and service in one of the professional valve

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Address: 109 Zhangbao Industrial Street, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province
Tel: 86-577-67976555

Fax: 86-577-67973367
Mobile: 86-13806834630  86-15105776969
E-mail：zjdy@dayang-valve.com

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