First, D973H electric clamp-type hard seal butterfly valve Product introduction The introduction of advanced foreign technology can be based on the use of sophisticated J-shaped elastic ring and three eccentric multi-level metal hard seal structure, is widely used in the medium temperature ≤ 425 ℃ Gold, electricity, petrochemicals, as well as industrial pipelines for water supply and drainage and municipal construction, for regulating flow and breaking fluid use. The valve adopts three eccentric structure, the valve seat and the disc sealing surface are made of different hardness and stainless steel, has good corrosion resistance, long service life, the valve Jun mail two-way sealing function, the product complies with national GB / T13927-92 valve pressure Test Standard. Second, D973H electric clamp-type hard seal butterfly valve features 1, the valve uses three eccentric seal structure, the valve seat and disc almost no wear and tear, with more and more tight sealing function. 2, the ring made of stainless steel, with the advantages of both metal seal and flexible seal, both in the case of low temperature and high temperature, have excellent sealing performance, with corrosion resistance, long service life and so on. 3, the sealing surface of the plate is cladded with cobalt-based hard alloy, the sealing surface is resistant to abrasion and long service life. 4, Large-format butterfly plate frame structure, high strength, large flow area, small flow resistance. 5, the valve has a two-way sealing function, the installation is not subject to restrictions on the flow of media, but also the location of space, can be installed in any direction. 6, the drive can be multi-station (rotated 90 ° or 180 °) installation, user-friendly. Third, the D973H electric clamping hardware seal butterfly valve main technical parameters Nominal through DN (mm) 50 ~ 2000 Nominal pharmacological PN (MPa) 0.6 1.0 1.6 2.5 Sealing test (MPa) 0.66 1.1 1.76 2.75 Strength test (MPa) 0.9 1.5 2.4 3.75 Applicable temperature Carbon steel: -29 ℃ ~ 425 ℃ Stainless steel: -40 ℃ ~ 650 ℃ Applicable medium Water, air, natural gas, oil and weak corrosive fluid Leakage rate Comply with GB / T13927-92 standard Drive Worm gear, electric , Pneumatic, hydraulic four, D973H electric clamping hardware seal butterfly valve main components of the main parts of the material name of the material body WCB, alloy steel, stainless steel, QT450-10 disc WCB, alloy steel, stainless steel, QT450-10 valve shaft 2Cr13 stainless steel , Alloy steel ring Stainless steel ring packing flexible graphite Five, D973H electric clamp-type hard sealing butterfly valve using standard manufacturing standards JB / T 8527-97 flange standard GB9113-2000 structure length standard GB12221-89 test standard GB / T 13927-92
High Speed Door
High speed shutter door is a rapid operating, anti-crash shutter door for indoor application . The most advantage of this door is that the opening/closing speed can reach to 0.6-1.8m/s, really fast action a lot than tranditional rollling shutter door. short opening and closing times reduce cooling loss, avoid airflow and enable a smooth operating procedure. They can also be designed in larger dimensions for the mining and aircraft industries.
High speed door can be easily installed, economical,quiet and efficient with electromechanical drive.
This door quickly though in/out open gate, ideal for warehouses,factories, hangars use, widths can be from 2m to 20 meters.
The material of this door are variety: PVC curtain to keep the insdie clean, heavy duty aluminum door with wind-resisitant function can wrok in heavy windy weather, and also the freezer door can be used in cold warehouse or somewhere like that.
Including models are:PVC High Speed Door, Aluminum Spiral High Speed Door, Self-Recovery repair door, Cold Storage Room Fast Door.
High Speed Door,PVC High Speed Door,Aluminum High Speed Door,Spiral High Speed Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfrollershutterdoor.com