Introduction
A butterfly valve is a type of quarter-turn valve that is used to control the flow of fluids in a piping system. It consists of a disk that rotates within the valve body, allowing for quick shut-off. Unlike ball valves, butterfly valves are generally more cost-effective and lighter, making them ideal for a wide range of applications. The disk is positioned in the center of the pipe, and it can be rotated either parallel or perpendicular to the flow, which helps regulate or isolate the fluid passage. This design also ensures minimal pressure loss when fully open, while still providing reliable sealing when closed.
Specification

Main Components and Materials
No. | Part | Material |
1 | Body | Ductile Iron |
2 | Disc | DI / SS / Bronze |
3 | Stem | SS304 / 316 |
4 | O-ring | EPDM / NBR / VITON |
5 | Seat | EPDM / PTFE |
6 | Bushing | PTFE / Bronze |
7 | Hand Wheel | Cast Iron |
8 | Worm Gear | Cast Iron |
Dimensions (mm)
DN | L | L1 | Φ | H1 | H2 | H3 | N | Φ3 |
40 | 42 | 250 | 110 | 66.5 | 142 | 26 | 4 | 18 |
50 | 42.3 | 260 | 125 | 66.5 | 142 | 26 | 4 | 18 |
65 | 43.3 | 280 | 145 | 74.1 | 151 | 26 | 4 | 18 |
80 | 45.6 | 284 | 160 | 94 | 161 | 26 | 4 | 18 |
100 | 50.6 | 357 | 180 | 110.8 | 181 | 26 | 4 | 18 |
125 | 53.6 | 374 | 210 | 128.8 | 191 | 28 | 4 | 18 |
150 | 54.4 | 374 | 240 | 140.5 | 204 | 28 | 4 | 22 |
200 | 59.6 | 384 | 295 | 172.5 | 238 | 29 | 4 | 22 |
250 | 65.4 | 384 | 350 | 206.2 | 268 | 29 | 4 | 22/26 |
300 | 75 | 537 | 400 | 235.8 | 306 | 30 | 4 | 22/26 |

Other Fire Fighting Equipment

MH slurry pump is single stage, cantilevered, horizontal, centrifugal high pressure slurry pump. The MH High Head Slurry Pump is specifically designed to combat the need to run conventional design slurry pumps at excessive speeds to generate high heads and high efficiency often required in many modern slurry pumping applications used as the filter press feeding pump, SAG Mill Discharge Slurry Pump and Wet Crusher Slurry Pump etc.Single pump unit rather than series pumping can be adopted, at greatly reduced capital cost, while still offering optimum wear life and efficiency.
Pump Features
-High chrome alloy liners provide superior abrasion resistance & erosion resistance and maximum wear life
-Large diameter, high efficiency impellers designed to meet high head requirement, maximum wear life and low operating cost
-High head & high pressure
-Discharge branch can be positioned at intervals of 45 degrees
-The pump can be installed in multi-stage high pressure operation
-Easy to maintain
Application Range:
Discharge Size:1" to 6"
3 Capacity:16 to 1125 m /h
Head:12 to 95 m
Press Feeding Pump,Filter Press Slurry Pump,High Pressure Slurry Pump,Press Feeding Slurry Pumps
SHIJIAZHUANG MUYUAN INDUSTRY & TRADE CO., LTD. , https://www.cnmuyuan.com