Q41F-16 flange ball valve for cast iron material soft seal ball valve, cast iron ball valve is used in the working temperature ≤ 150 ℃ water, steam and other non-corrosive media pipeline, for opening and closing; its advantages for the opening and closing quickly, is the normal temperature of the water medium pipeline application of a more common valve products.
Product Characteristics
- Fluid resistance is small, full bore ball valves have basically no flow resistance.
- Simple structure, small size and light weight.
- Tight and reliable, the current ball valve sealing surface materials are widely used PTFE, good sealing.
- Easy to operate, quick to open and close, from fully open to fully closed with a 90° rotation.
- Convenient maintenance, the ball valve structure is simple, the seal ring is generally movable, disassembly and replacement are more convenient.
- When fully open or fully closed, the sealing surfaces of the ball and seat are separated from the medium, and when the medium passes through, it will not cause erosion of the sealing surfaces of the ball valve.
- Because of their wiping properties during opening and closing, ball valves can be used in media with suspended solid particles.
Product Parameters
Product Model | Q41F-16 |
Valve Body Material | Grey Cast Iron |
Nominal Pressure | ≤1.6Mpa |
Applicable Media | Water, Steam, Oil, etc. |
Operating Temperature | ≤150°C |
Product Size Reference

Nominal Diameter | L | D | D1 | D2 | f | b | Z-d | H | Do |
DN15 | 130 | 95 | 65 | 45 | 2 | 14 | 4-14 | 78 | 160 |
DN20 | 145 | 105 | 75 | 55 | 2 | 16 | 4-14 | 110 | 160 |
DN25 | 155 | 115 | 85 | 65 | 2 | 16 | 4-14 | 110 | 160 |
DN32 | 160 | 135 | 100 | 78 | 2 | 18 | 4-18 | 115 | 160 |
DN40 | 175 | 145 | 110 | 85 | 3 | 18 | 4-18 | 150 | 250 |
DN50 | 200 | 160 | 125 | 100 | 3 | 20 | 4-18 | 150 | 250 |
DN65 | 220 | 180 | 145 | 120 | 3 | 20 | 4-18 | 180 | 350 |
DN80 | 250 | 195 | 160 | 135 | 3 | 22 | 8-18 | 185 | 350 |
DN100 | 280 | 215 | 180 | 155 | 3 | 24 | 8-18 | 225 | 400 |
DN125 | 350 | 245 | 210 | 185 | 3 | 26 | 8-18 | 265 | 600 |
DN150 | 400 | 280 | 240 | 210 | 3 | 26 | 8-23 | 275 | 600 |
DN200 | 455 | 335 | 295 | 265 | 3 | 30 | 12-23 | 310 | 800 |


















