Social responsibility
Contact Us
Hotline:
After-sales installation:
Product inquiry purchase:
After-sales maintenance:
Address: Social responsibility
Installation method for gas meters
Introducing the installation method for gas meters.
The gas meter must be placed horizontally on its bracket and shall not be tilted. The vertical deviation of the meter should not exceed 1 cm. The inlet and outlet pipelines of the gas meter should be made of steel or lead pipes, and the threaded connections must be tight. After bending, the lead pipe should form a smooth arc while maintaining its original diameter; it should not be dented or collapsed. The horizontal branch pipe upstream of the meter should slope toward the riser, while the horizontal branch pipe downstream of the meter should slope toward the cooking appliance. The flexible joint for the horizontal branch pipe connecting to the low-mounted meter must not be installed inside the cooktop surface. When connecting the gas meter’s inlet and outlet with single-pipe fittings, pay attention to the correct connection direction to avoid installation errors.
The single-tube connector has its side end connected to the inlet pipe and its top end connected to the outlet pipe. At the lower end, where it connects to the meter, a rubber sealing ring must be installed. The rubber ring of the device must not be twisted or deformed to prevent gas leakage. When the inlet and outlet pipes of the gas meter are located on opposite sides of the meter, pay attention to the correct connection direction. Generally speaking, when facing the meter’s dial, the left side is the inlet pipe, and the right side is the outlet pipe. During installation, follow the product instructions for the gas meter carefully to avoid incorrect installation.

After the gas meter has been installed, a tightness test shall be conducted. The test medium shall be compressed air at a pressure of 300 mm water column; the pressure drop within 5 minutes shall not exceed 20 mm water column to be considered qualified.
The above is the installation method for gas meters. We hope it will help everyone use them more effectively. Chengde Longzhida Smart Instruments & Meter Technology Co., Ltd. develops high-quality products that are easy to install and come with comprehensive after-sales service.
Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.
Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.
Today is a day that every Chinese person should solemnly remember—the 80th anniversary of the victory of the Chinese People’s War of Resistance Against Japanese Aggression and the World Anti-Fascist War.
On July 2, Chengde Longzhida Company held a meeting with the Sino-German Institute. After thorough discussions between the two sides, Mr. Bai, General Manager of Longzhida Company, and the faculty team from the Sino-German Institute reached a consensus: Longzhida Company officially entrusted the Sino-German Institute to carry out the design and R&D work for a new type of ultrasonic water meter.
On May 30, Longzhida Company successfully held an exceptionally meaningful event titled “Welcoming the Eighth ‘National Science and Technology Workers’ Day’: Promoting the Spirit of Scientists.”