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Shanghai Tingyang Self Control Valve Manufacturing Co., Ltd

E-mail
2355324301@qq.com
Phone
13916504389
Address
Haiwan Industrial Zone, Fengxian District, Shanghai

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Manual flow and pressure regulating valve

NegotiableUpdate on 02/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

A manual flow and pressure regulating valve is a manual control device used to regulate the flow and pressure of fluids such as water, gas, or other liquids. It changes the valve opening through manual operation, thereby achieving precise control of fluid flow and pressure in the pipeline system.

Product Details

1、 Structure and Working Principle

1. Main components:

Valve body: As the main part of the fluid channel, it is usually made of metal or high-strength plastic.

Valve core: a key component used to control fluid flow, its shape and material can affect regulating performance.

Handwheel/handle: for the operator to manually rotate to adjust the valve opening.

Sealing element: Ensure that the valve can prevent fluid leakage when closed.

Spring or balance mechanism: Some designs include springs or balance devices to assist in adjusting pressure.

2. Working principle:

When the operator rotates the handwheel or handle on the valve, the valve core will move along the inner wall of the valve body, changing the cross-sectional area of the fluid channel.

The change in cross-sectional area of fluid channels directly affects the flow rate and pressure of fluids. For example, reducing the cross-sectional area of the channel will increase fluid resistance, decrease flow rate, and increase pressure; Conversely, the opposite is true.

2、 Application Fields

1. Industrial sector:

In industries such as chemical, petroleum, and power, it is used to regulate fluid parameters in process flows.

For example, in the cooling water system, a constant pressure is maintained through a pressure regulating valve to ensure the normal operation of the equipment.

2. Agricultural irrigation:

It is used in farmland irrigation system to regulate water flow and pressure to avoid pipe rupture or sprinkler damage due to high pressure.

3. Building water supply and drainage:

In high-rise buildings, it is used to regulate the water pressure on different floors to ensure even water usage on each floor.

It is also commonly used in households to regulate the inlet pressure of devices such as water heaters and washing machines.

4. Other uses:

In the fire protection system, it is used to regulate the pressure of fire water pipes to ensure sufficient water pressure during firefighting.

In the laboratory, it is used to precisely control the flow rate of gases or liquids.

3、 Advantages and disadvantages

1. Advantages:

Simple and reliable: The structure is simple, the operation is convenient, and there is no need for external power sources or complex control systems.

Low cost: Compared to automatic pressure regulators, manual pressure regulators are cheaper and suitable for applications with limited budgets.

Wide applicability: Suitable for various fluid media and pressure ranges.

2. Disadvantages:

Strong dependence on manual labor: requires manual operation and cannot achieve automated control.

Slow response speed: In situations where rapid adjustment is required, manual operation may not meet the requirements.

Limited accuracy: Compared to automatic control systems, manual adjustment has lower accuracy.

4、 Maintenance and upkeep

1. Regular inspection:

Check for any leaks in the valve and ensure that the seals are intact and undamaged.

Clean the possible impurities or deposits inside the valve body to prevent blockage.

2. Lubrication treatment:

Regularly lubricate moving parts such as handwheels and screws to reduce wear and extend their service life.

3. Replace parts:

If the seal is found to be aged or damaged, it should be replaced in a timely manner to ensure the normal operation of the valve.