Enter Zhongxin

Zhongxin Valve Co., Ltd. was established in 2015 and is located in Longwan Binhai Park, Wenzhou, China Valve City. It is a valve manufacturer that integrates research and development, sales, and service. The enterprise has a senior research team, advanced production equipment, and adopts advanced production processes and technologies, international quality assurance and control processes, as well as advanced production and operation management, to ensure that the products are qualified for delivery and have received unanimous praise from new and old customers!
2015
Established in(Year)
1000+
Specifications(Unit)
2000+
Maximum Valve Diameter(mm)

Explore our products

The main products of the enterprise include integrated fully welded ball valves, direct buried fully welded ball valves, double relief welded ball valves, natural gas ball valves, flange welded ball valves, welded filters, hydraulic control valves, locking valves, gate valves, globe valves, butterfly valves, check valves, etc.

WHY CHOOSE US

The company insists on survival through quality and reputation, development through technological products, inheritance and innovation, and striving for excellence

Quality Control

We conduct 100% internal testing and inspection on all products to ensure quality.

Provide OEM Services

Process according to customer drawings/samples or design according to working conditions.

Competitive Prices

We provide products of expected quality at competitive prices and win the recognition of many customers.

Fast Logistics

Mature delivery process and good logistics partners ensure that customers receive the products they need in the shortest possible time.

Provide one-stop valve solutions to meet your operational needs

The product is widely used in industries such as petroleum, chemical, natural gas, thermal, shipbuilding, electricity, pharmaceuticals, metallurgy, food, military, and construction engineering, and has received high praise from domestic and foreign users.

石油行业

Petroleum

The petroleum industry is an important component of the fuel industry, covering multiple links such as exploration, extraction, refining, storage and transportation of natural petroleum and oil shale, providing various fuel oils for various sectors of the national economy.

石油行业

Chemical industry

The chemical industry is a general term for enterprises and units engaged in the production and development of the chemical industry. This industry penetrates into various fields and is an indispensable and important component of the national economy.

石油行业

Metallurgy

The metallurgical industry refers to the industrial sector that explores, mines, selects, refines, and rolls metal minerals into materials, including two major categories: black metallurgical industry and non-ferrous metallurgical industry.

石油行业

Power station gate valve

A power station is a factory that converts various primary energy sources stored in nature into electrical energy. The development of motor manufacturing technology, the expansion of the application scope of electrical energy, and the increasing demand for electricity in production have led to the emergence of power plants.

石油行业

Shipbuilding industry

The shipbuilding industry refers to the industry of designing, constructing, and maintaining various types of ships and related equipment, covering shipyards, marine equipment manufacturing enterprises, and related service industries, including ship design, shipbuilding, ship repair, ship supporting equipment manufacturing, ship trade, shipping management, and other sub sectors.

石油行业

Water Treatment Industry

The water treatment industry is about purifying, softening, disinfecting, and removing iron and manganese from water that does not meet the requirements. Removing heavy metal ions and filtering a project. Important areas to meet different water needs.

石油行业

Natural gas industry

Natural gas is a clean and efficient fossil energy source, mainly composed of methane. It covers the entire industry chain from natural gas exploration, development, production, purification, storage, transportation to sales and utilization. It occupies an important position in the global energy structure.

石油行业

New energy industry

New energy refers to renewable energy that can be systematically developed and utilized based on new technologies, including solar energy, wind energy, hydro energy, biomass energy, geothermal energy, ocean energy, nuclear energy, etc.

news

What factors affect the practical application of fully welded ball valves?


Fully welded ball valves are affected by various factors in practical applications, which directly affect the performance, service life, and safety of the ball valve. Here are some of the main influencing factors: 1. Medium conditions • Medium temperature: The medium temperature for fully welded ball valves is generally between -20 ℃ and 150 ℃. Exceeding this range may affect the sealing performance and material stability of the ball valve. • Medium composition: If the medium contains hard particles, crystals, impurities, etc

09-30

Precautions for installation of large-diameter fully welded ball valves


When installing large-diameter fully welded ball valves, attention should be paid to key aspects such as pipeline pretreatment, lifting operations, welding specifications, and subsequent inspection and maintenance. The specific steps are as follows: 1. Pipeline inspection and pre-treatment: Before installation, it is necessary to ensure that the interior of the pipeline is clean, free of impurities, rust, etc., to prevent foreign objects from entering the valve. At the same time, it is necessary to check the size and positional errors of the pipeline to ensure that it matches the connection port of the ball valve. 2. Valve lifting: The lifting rope should be tied to the lifting ear (ring) or flange on the ball valve body, avoiding tying to the handwheel, valve stem or actuator to prevent damage. During the lifting process, the sealing covers at both ends of the ball valve should not be removed to prevent dust and foreign objects from entering the chamber. Soft straps should be used for lifting to avoid impact or collision with the ball valve, and corner protection measures should be taken at the edges of the valve.

09-30

How to distinguish and compile ball valve models?


The differentiation and compilation of ball valve models are mainly based on a series of standardized parameters, which together constitute the model identification of ball valves for easy identification, selection, and use. The following is a detailed explanation of the differentiation and compilation methods for ball valve models: 1、 Basic components of ball valve models Ball valve models typically consist of multiple parameters, including but not limited to: valve type, connection method, material, nominal diameter, nominal pressure, operating mode, etc. By combining these parameters, the model of a ball valve can be uniquely determined. 2、 Specific parameters of ball valve models

09-30

What are the characteristics of fixed ball valves


Fixed ball valves have the following significant characteristics, which make them widely advantageous in industrial applications: 1. Sturdy structure and strong pressure bearing capacity Spherical fixed design: The spherical body is supported and fixed by upper and lower valve stems, without displacement due to medium pressure, ensuring structural stability under high pressure conditions. High strength materials: Valve bodies and spheres are usually made of high-strength materials such as carbon steel, stainless steel, or alloy steel, which can withstand pressures of hundreds of megapascals (MPa) and are suitable for high-pressure, large-diameter pipeline systems. 2. Excellent sealing performance Bidirectional sealing: The sealing design of the fixed ball valve can achieve zero leakage in both directions, suitable for occasions with strict sealing requirements. There are various sealing materials available: depending on the characteristics of the medium, metal hard seals (such as Stellite alloy) or high-performance soft seals (such as PTFE, PEEK) can be selected to ensure reliable sealing in high temperature, high pressure, or corrosive media.

09-30

Installation environment and maintenance precautions for butterfly valves


The installation environment and maintenance precautions of butterfly valves are crucial for ensuring their normal operation and extending their service life. The following is a detailed explanation of these two aspects: Installation environment 1. Environmental adaptability: Butterfly valves are suitable for indoor and outdoor environments, but in situations with corrosive media and easy rusting, a combination of materials with corresponding corrosion resistance and rust prevention properties is required. 2. Installation location: Butterfly valves should be installed in a location that is safe to operate and easy to maintain, inspect, and repair. 3. Temperature and humidity: The working environment temperature of butterfly valves should be between -20 ℃~+70 ℃, and the humidity should be kept below 90% RH. Installation precautions 1. Inspection and verification: Before installation, the valve specifications, pressure, temperature, and corrosion resistance should be checked according to the nameplate markings on the valve to ensure that they meet the requirements for use,

09-30

Valve Casting Process Method


There are various methods for valve casting, each with its specific application scenarios and advantages and disadvantages. The following are some main valve casting process methods and their characteristics: 1. Sand casting Sand casting is one of the most commonly used methods in valve casting. It uses materials such as sand, aggregates, binders, and water to make molds. The specific steps include: Produce a template based on the external dimensions of the valve. Embed the template into the sand box and pour in the evenly mixed sand, aggregate, and binder. Tightly connect the sand through compaction and vibration, and fill the cavity. After the sand solidifies, take out the template and obtain the sand mold for the valve.

09-30

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