Check Valve
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China Check Valve

TJL indusry group is a professional China Check Valve manufacturer,Provide China Check Valve,Welcome to contact us by Email锛歩nfo@tjlindustry.com

Valve controls the flow of liquids and gases through pipes and tubes. It includes types of butterfly valve, gate valve, check valve, globe valve, ball valve, air vent valve, solenoid valve, pressure reducing valve and others. Here we are going to talk about the check valve. Check valves are employed in the pipeline systems. Workers hardly think twice of them. But a fault check valve in a plane, a machine, or a chemical plant could be no good. Valves must be precision-made and trouble-free. 


A check valve is a valve that normally allows two types of flow to flow through it. There are two kinds of flow in check valves: forward-flow and r everse-flow. When a check valve is open, forward-flow comes; when a check valve is closed, a r everse-flow leaves. A check valve does not run itself; The pressure of the fluid helps. It passes through a system, and opens the valve while any reversal of flow will close the valve. Manufacturers make them in a wide range of sizes and types. Most common types of check valves are swing check valve, lift check valves, and tilting-disk check valves. 


Check valves are available with different spring rates to give particular cracking pressures. The cracking pressure is that at which the check valve just opens. If a specific cracking pressure is essential to the functioning of a circuit, it is usual to show a spring on the check valve symbol. The pressure drop over the check valve depends upon the flow rate; the higher the flow rate, the further the ball or poppet has to move off its seat and so the higher the spring force.


Check valves from TJL Industry include dual plate check valve, swing check valve, lift check valve, and tilting disc check valve. You may click on our website to have a check about the check valves we have got. What's more, we sell them to the customer worldwide, including from Europe, America, Asia, Middle East and Africa. Our products can be used for Water supply and drainage, oil, gas, chemical industry and so on.


The advantages of a check valve:

1. Prevents backflow.

2. Maintains pressure.


The disadvantages of a check valve:

1. Can't be used with pulsating systems.

2. Causing damage and excessive wear.


There is considerable room for expansion in the check valve industry at the present. The main factors of the expansion include the growing energy demand, sustained increase in global population and urbanization in developing countries, the process of industrialization after the financial crisis. This trend has been growing steadily for years. Currently, the world's major economies have already entered the economic recovery cycle. The check valve industry was showing a steady upward growth therewith.

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