Features:
1. The key parts of the metal bellows, the lower end and the valve stem assembly adopt automatic rolling welding, the upper end and the connecting plate are automatically rolling welding, forming a metal barrier between the fluid medium and the atmosphere to ensure zero leakage of the valve stem;
2. Valve disc adopts conical design, sealing surface and medium flow line, better sealing performance, longer service life;
3. Dual seal design (bellows and packing) prevents stem packing from leaking if bellows fail and meets international sealing standards;
4. The valve cover is provided with grease connector, which can lubricate the stem, nut and shaft sleeve directly, unlike the traditional lubricating oil only for the thread;
5. Ergonomically designed handwheel, longer service life, easy and convenient operation, more safe and reliable.
Structural diagram:Dimensions and Standards:
Pressure: 1.6mpa, 2.5mpa, 4.0mpa, 300LB, 600LB, 900LB, etc.
Caliber: DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, etc.
Design specification: BS1873 GB/T 12235 DIN 3356
Structural length: ASME B16.10 GB/T12221 DIN 3202
Flange connection: ASME B16.5 GB/T 9113 DIN 2543-2545
Test and inspection: API 598 GB/T 13927 DIN3230