Application:
The GD-S6H-6C-12 high-temperature and high-pressure valve developed by our company is mainly used in the water and steam analysis sampling device of subcritical, supercritical, and ultra supercritical power generation units in thermal power plants. It is mainly used for the primary valve, secondary valve, and drain valve of high-temperature and high-pressure sampling points (such as feedwater pressure of 34MPa, temperature of 310 ℃: main steam pressure of 27.5MPa, temperature of 620 ℃). After years of comparative experiments with internationally renowned similar products on multiple sampling racks, it has been proven that valves can completely replace imported well-known brands in terms of high temperature and high pressure resistance, wear resistance, creep resistance, and service life.

Main features:
Adopting a double sealed and double adjustable structure. (Patent number: ZL2013 2 0790392.7)
1. The valve body is fixed to the valve stem sleeve through a joint nut, and a sealing component - a double ball mechanism - is embedded in the lower end face of the valve stem lifting nut and the bottom chamber of the valve stem sleeve, which can achieve double adjustment of axial clearance, so that the sealing steel ball and the valve body sealing port are in a sealed state with low friction resistance;
2. Good sealing performance; Opening and closing valves is effortless; Long service life;
3. If the operating environment is poor, the mesons cannot contact the rotating part of the steel ball, resulting in impurities in the mesons not being able to enter the rotating shaft, and the copper ball rotating shaft will not be blocked. The steel ball will not produce friction with the sealing port of the valve body when closed. To ensure the normal use of the valve.

Technical indicators:
1. Temperature characteristics: When the working medium temperature is 620 ℃, its allowable working pressure is ≤ 28MPa; When the working medium temperature is 350 ℃, the allowable working pressure is ≤ 38MPa.
2. Valve diameter: DN6mm
3. Connection method: socket welding
4. Theme material: Valve body 316H Sealing part: Flexible graphite