Special Globe Valve for Liquefied Gas

The durable special globe valve for liquefied gas manufactured by JQF Valve manufacturer is a forced-seal valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to prevent leakage at the sealing surface. When the medium enters the valve from below the valve disc, the operating force must overcome resistance including the friction between the valve stem and the packing, as well as the thrust generated by the medium pressure. The valve diameter should be large enough; otherwise, valve stem bending failure may occur.

1. Superior Sealing and Safety
The customized special globe valve for liquefied gas employs a double-seal design (e.g., bellows + packing). Even if the bellows fails, the packing provides a secondary seal to prevent media leakage.
The special globe valve for liquefied gas typically uses chemically resistant materials, such as polytetrafluoroethylene (PTFE), ensuring stable performance and reliable sealing in liquefied gas environments.
No external leakage, meeting international sealing standards, improving plant and equipment safety.
2. Wear and Corrosion Resistance
During opening and closing, the relative sliding between the valve disc and the sealing surface is minimal, resulting in less wear and abrasion, making it more wear-resistant than gate valves.
The selection of materials suitable for the characteristics of liquefied gas gives the advanced special globe valve for liquefied gas excellent corrosion resistance, extending its service life.
3. Long Service Life and Low Maintenance
The bellows seal design eliminates the disadvantages of rapid aging and leakage caused by ordinary valve packing seals, extending the service life of the special globe valve for liquefied gas.
Long service life reduces the frequency of maintenance, thereby lowering operating costs and maintenance expenses.

Installation Requirements

1. Thorough Cleaning
Before installation, clean the internal cavity of the LPG valve and remove any damage caused during transportation.
2. Sufficient Lubrication
Before commissioning, add sufficient lubricating oil to all moving parts of the LPG valve's transmission mechanism.
3. Correct Installation Angle
During installation, ensure the LPG valve's drive shaft is horizontal, or the piston valve is vertically upward.
4. Pre-Test Transmission
Before use, test the transmission mechanism to ensure it functions correctly and that the travel limit and overload protection are reliable.
5. Carefully Read the Instruction Manual
Before powering on, carefully read the operation manual for the accompanying electrical control device.

Product parts and materials

1. Regular Inspection: After using the LPG valve, regularly check its opening and closing status and address any problems promptly.
2. Frequent Lubrication: Regularly add lubricating oil to the moving parts to maintain smooth rotation.
3. Timely Replacement: If the piston is found to be not closing tightly, check and replace the rubber sealing gasket.

Product appearance and structure size