Views:0 Author:Site Editor Publish Time: 2021-07-13 Origin:Site
Compressed natural gas, which could be shortened as CNG, is a type of fuel that can be used in a variety of industries, apart from applying it for domestic use. CNG can also be used as fuel for vehicle engines and industrial productions after multi-stage pressurization to about 20MPa. The CNG valve as the name replies is the key equipment to control the use and storage of compressed natural gas. It is invented for safer and better use of CNG. So, now what is a CNG valve exactly? Please allow me to introduce them to you in the following contents.
Here is the content list:
A general description of the CNG valve.
What are the different types of CNG valves?
Characteristics of the CNG valve.
CNG valve is dedicated to natural gas, liquid petroleum gas, oil, etc. It has a unique design, novel structure. The high-quality CNG vale generally could bring out good sealing performance to completely solve the valve's lack of tightness caused by gas coking, unable to open, and other problems, effectively improve the sealing performance and service life, and truly achieve zero leakage. On most occasions, the CNG valves are made up of high-quality brass.
At present, the use of CNG valves has been wide and broad, with a wide variety of types and more classification methods. The general differentiation of them has two categories. The first one is the automatic CNG valve: a valve that relies on the ability of the gas to act on its own. Such as check valve, regulating valve, pressure reducing valve, etc. The second one is a power-driving CNG valve: a CNG valve that is operated manually, electrically, or pneumatically. Such as gate valve, globe valve, throttle valve, butterfly valve, ball valve, plug valve, etc.
Although CNG valves have lots of different types, the CNG gate valve is the one that is used most often, therefore, in this passage, I will mainly talk about the characteristics of the CNG gate valve. The CNG gate valve body adopts a casting structure. The valve seat adopts an O-ring seal and a floating seat structure with pre-tightening force applied to make the valve inlet and outlet two-way sealed; and the opening and closing torque of this structure are only 1/2 of that of ordinary valves, which can easily open and close the valve. The valve seat adopts the sealing surface inlaid with PTFE, which has a double seal of PTFE to metal and metal to metal, and the PTFE sealing surface simultaneously removes dirt on the gate. The gate of the valve, whether it is fully open or fully closed, is always consistent with the sealing surface, and the sealing surface is protected from direct erosion by the medium, thereby prolonging the service life. When the valve is fully opened, the passage is smooth and straight, the flow resistance coefficient is extremely small, and there is no pressure loss, and the pipeline can be cleaned with a hairball. When the valve is closed, the high pressure in the inner cavity can be automatically removed to ensure safe use.
If you are looking for more information concerning CNG valves or are interested in finding a professional CNG valve manufacturer to buy wonderful types of them. Then, you have turned on the right passage, please make sure you check out the web of Ningbo Fuhua Valve Co., Ltd., this professional CNG valve manufacturer will definitely satisfy any orders and needs of you with their reliable and professional knowledge and their amazing production speed.