API 600 Frictionless Sealed Three Eccentric Butterfly Valve In Hydro Power Plant 4inch

DINKONDA GLOBAL Power Plants Special D63H Series Handle Manual Groove Butt Welding Connection Three Eccentric Frictionless Metal Hard Sealed Butterfly Valve

Product Overview
D63H handle manual butt welded three eccentric metal hard seal butterfly valve, with groove butt welding connection at both ends of the valve body. The handle is directly operated manually, relying on the principle of three eccentric frictionless metal sealing, which is resistant to high temperature, high pressure, and medium erosion. Valves and pipelines are welded as a whole without gaskets, effectively eliminating the risk of flange leakage. It is very suitable for high-temperature steam, flue gas, and pipelines with trace particle media, and can achieve medium cut-off and rough flow regulation. It is widely used in welding pipeline systems with high temperature and high pressure, strict sealing requirements, such as power plants, heating, metallurgy, and chemical industries.

Structural Composition
1. Valve body: made of WCB cast steel material, with standard welding grooves at both ends, and groove dimensions in accordance with GB/T12224 standard. The overall structural rigidity is high, with strong resistance to pipeline deformation and seismic performance. The outer surface is coated with anti-corrosion coating

2. Butterfly plate: Three eccentric structure, sealing surface welded with hard alloy, resistant to erosion and wear, capable of withstanding long-term erosion from media containing a small amount of solid particles

3. Valve seat: replaceable elastic metal hard sealing pair, achieving bi-directional pressure sealing

4. Valve stem: Made of 2Cr13 stainless steel material, high-strength, torsion resistant, and corrosion-resistant

5. Drive components: The handle is directly manually driven and can be equipped with a locking device to prevent the valve from rotating on its own due to the impact of the medium

6. Brackets and fasteners, easy to disassemble and maintain in the later stage

Product Features
1. Three eccentric frictionless seal
The triple eccentric geometric structure ensures no sliding or scratching between the sealing surfaces of the butterfly plate and valve seat during the opening and closing process, greatly reducing the wear of the sealing pair, extending the service life of the valve, and effectively avoiding faults such as valve jamming, biting, and internal leakage under high temperature conditions.

2. Metal hard seal with high temperature resistance
All metal sealing pair, with a maximum applicable temperature of 425 ℃, suitable for high-temperature media such as steam, thermal oil, high-temperature flue gas, and hot air, and can transport fluids containing small amounts of dust and solid particles.

3. Bidirectional high-pressure seal
Capable of withstanding bidirectional pressure difference in pipelines, bubble level sealing, and leakage level up to level VI.

4. Butt welding connection
The valve is directly welded to the pipeline groove to eliminate the risk of external leakage at the flange connection; The valve body has a compact shape, and the overall insulation construction of the pipeline is convenient. It is suitable for working conditions with high pressure, large vibration, and long-term continuous operation.

5. Handle manual drive
No external gas source or power supply is required, and the switch can be manually turned on and off on site. It is easy to operate, low-cost, and suitable for pipelines that do not require remote automatic control.

6. Excellent circulation performance
Low flow resistance and high flow capacity, it can completely shut off the medium to achieve cutting function, and can also achieve rough flow regulation.

Technical Parameters