Stainless steel threaded valve Products: Stainless steel screw gate opening and closing parts are plug-shaped valve, leaving it flat or cone seal centerline, the valve in a straight line along the fluid. Stem form of exercise with lifting rod (stem down, the hand wheel does not lift), but also lift rotating rod (hand wheel and stem rotation movements, nut located in the body). Product Type: Z15W-16 / 25P major structural performance parameters: 1. Transmission: Manual, worm gear, bevel gear, pneumatic / electric (with manual) 2. Connection: internal thread, external thread, flange, welding, clip-on, clamp, ferrule 3. Structure: the next shot, dark bar, wedge gate, gate-parallel, flexible gate 4. Seal: soft seal, hard seals. 5. Pressure: 0.6Mpa≤64.0Mpa 6. Diameter: DN15≤DN50 7. Temperature 0 ℃ ≤550 ℃ 8. Body material: stainless steel, carbon steel, cast iron, etc. 9. Media: water, oil, steam and so on. Stainless steel screw gate standards: (i) Standard: ASME B16.34, AFI608 (ii) structural length standard: GB / T 12221-2005 (iii) pipe thread connection ends: ASME B1.20, BS21, DIN29999 / 259, BSP ISO7 / 1, ISO228 13927-2008 stainless steel screw gate within the structural characteristics of GB / T:: / 1, JISB02 (iv) temperature rating: GB / T 12224-2005 (v) test test ① dynamic resistance. Body internal media channel is straight, medium into a linear flow, small flow resistance. ② closed when more effort. In contrast with the shut-off valve, since either open or closed, the shutter movement direction are perpendicular to the flow direction of the medium. ③ degree, long opening and closing times. Gate opening and closing stroke of a larger drop is carried out by a screw. ④ hammer phenomenon difficult to produce. The reason is that long off time. ⑤ quality can flow in any direction to both sides for easy installation. Channel is symmetrical on both sides of the gate valve. ⑥ Frame length (the distance between two lines between the connecting end of the housing) is small. ⑦ cover easy to wear, affecting life. When opening and closing, the gate and the seat sliding friction between the two sealing surfaces to medium pressure prone to scratches and wear down, affecting the sealing performance and shorten life. ⑧ more touch the sealing surface, the processing is more complex, especially the sealing surfaces of the shutter seat difficult to process, and more parts. ⑨ simple body structure, length short, good manufacturing processes for a wide range. Applies to: air, steam, water, gas, petroleum and petrochemical products media.