Z41H American Standard flange gate valve is suitable for ANSI Class 150LB, the working temperature is less than 250 ℃ of the various pipeline, used to cut off or connect the medium in the pipeline. Through the selection of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing media and urea and other media.
Working Principle
Z41H American Standard flange gate valve opening and closing member is the gate, the movement direction of the gate is perpendicular to the direction of the fluid, the gate valve can only be used for full open and full closed, can not be used for regulation and throttling. Gate has two sealing surfaces, the most commonly used mode gate valve two sealing surfaces form a wedge, wedge angle with the valve parameters and different. Wedge gate valve gate can be made into a whole, called the rigid gate; can also be made to produce a small amount of deformation of the gate, in order to improve its craftsmanship, to make up for the angle of the sealing surface in the processing of the deviation, this gate is called the elastic gate.
Product Features
- Adopting wedge-type elastic gate structure, medium and large caliber set rolling bearings, opening and closing easily.
- The valve stem is tempered and surface nitrided for corrosion and scuff resistance.
- The gate and seat are wear-resistant, high-temperature-resistant, corrosion-resistant, with good anti-scratch performance and long service life.
- Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.
- Valve body material varieties, packing, gaskets according to the actual working conditions or user requirements reasonable selection, can be applied to a variety of temperatures and media conditions.
Product Parameters
Product Model | Z41H-150LBC |
Valve body material | Cast Steel |
Nominal pressure | Class 150LB |
Applicable medium | Water, Steam, Oil, etc. |
Applicable temperature | ≤250°C |
Product Size Reference

Inch | DN | L | H | D | Weight (kg) |
1/2" | 15 | 108 | 188 | 90 | 8 |
3/4" | 20 | 117 | 202 | 90 | 8.5 |
1" | 25 | 127 | 225 | 100 | 9 |
1-1/4" | 32 | 140 | 252 | 100 | 12 |
1-1/2" | 40 | 165 | 277 | 140 | 17 |
2" | 50 | 178 | 323 | 200 | 23 |
2-1/2" | 65 | 190 | 347 | 250 | 32 |
3" | 80 | 203 | 383 | 250 | 40 |
4" | 100 | 229 | 457 | 300 | 63 |
5" | 125 | 254 | 632 | 300 | 66 |
6" | 150 | 267 | 762 | 350 | 108 |
8" | 200 | 292 | 895 | 350 | 171 |
10" | 250 | 330 | 895 | 400 | 263 |
12" | 300 | 356 | 1080 | 500 | 346 |
14" | 350 | 381 | 1295 | 600 | 488 |
16" | 400 | 406 | 1435 | 600 | 621 |
18" | 450 | 432 | 1626 | 650 | 814 |
20" | 500 | 457 | 1829 | 650 | 992 |
24" | 600 | 508 | 2175 | 700 | 1492 |
















