Product Description
The Q41F-16 Cast Iron Flanged Ball Valve is a cast iron soft-sealed ball valve. Cast iron ball valves are used in pipelines carrying non-corrosive media such as water, steam, etc. at operating temperatures of ≤150℃ for opening and closing purposes. Their advantages include rapid opening and closing, making them a widely used valve product in pipelines carrying water at ambient temperatures.
Product Features
- With low fluid resistance, full-nominal-diameter ball valves have virtually no flow resistance.
- Simple structure, compact size, and lightweight.
- Tight and reliable; currently, PTFE is widely used as the sealing surface material for ball valves, providing excellent sealing performance.
- It is easy to operate and opens and closes quickly; it takes only a 90° rotation to go from fully open to fully closed.
- Ball valves are easy to maintain; they have a simple design, and the seals are typically removable, making them easy to disassemble and replace.
- When the valve is fully open or fully closed, the sealing surfaces of the ball and the seat are isolated from the medium; therefore, the flow of the medium does not cause erosion of the ball valve’s sealing surfaces.
- Because ball valves have a wiping action during the opening and closing process, they can be used with media containing suspended solid particles.
Product Specifications
Product Model | Q41F-16 |
Valve Body Material | Cast Iron(HT200) |
Nominal Pressure | ≤1.6 MPa |
Applicable Media | Water, steam, oil, etc. |
Operating Temperature | ≤150℃ |
Product Size Guide

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 |




















