Control valves 25Ch37Nzh, 25Ch38Nzh
(设备/材料)
状态: New
位置或存放国家: Russia
服务工程支持: Yes
保证: Yes
价钱: 要求价格
描述:
Control valves 25ч37нж, 25ч38нж are used for automatic control of technological processes. They are used at central and individual heating points (ЦТП and ИТП), ventilation systems of greenhouses and in other areas of the national economy. Valves 25ч37нж and 25ч38нж contain 2 seats, which guarantees stable and reliable operation when regulating the flow of the medium.
概观:
Part materials
| Part name | Material brand |
| Body, cover | SCH20 GOST1412 |
| Plunger, seat | Steel 20X13 GOST5632 |
| Sealing in the shutter | "metal on metal" |
| Oil seal seal | Graflex |
Dimensions
| D.N. | D1 | D2 | D3 | L | n | d | D | H | H1 | |
| min | max | |||||||||
| 25 | 68 | 85 | 115 | 160 | 4 | 14 | 260 | 510 | 595 | 625 |
| 40 | 88 | 110 | 145 | 200 | 18 | 320 | 600 | 690 | 710 | |
| 50 | 102 | 125 | 160 | 230 | 620 | 710 | 730 | |||
| 80 | 133 | 160 | 195 | 310 | 382 | 835 | 995 | 1045 | ||
Technical specifications
| Nomenclature name | 25h37nzh, 25h38nzh | |||
| Nominal diameter DN, mm | 25 | 40 | 50 | 80 |
| Nominal pressure PN, MPa (kgf/ cm2 ) | 1.6 (16) | |||
| Bandwidth characteristic | linear, equal percentage | |||
| Plunger working stroke, mm | 16 | 25 | 40 | |
| Conditional capacity Kvy, m3 /h | 3.2 4.0 6.3 8 10 12.5 16 | 10 16 25 40 | 16 25 40 63 | 40 63 100 160 |
| Permissible pressure difference ΔP, MPa (kgf/ cm2 ) | 1.5 (15) | |||
| Relative leakage in the shutter, % of Kvy | 0.05 at ΔRisp = 0.4 MPa (4 kgf/ cm2 ) | |||
| Nominal pressure of control air, MPa (kgf/ cm2 ) | 0.25 (2.5) | |||
| Working environment | Water, steam, air and other liquid and gaseous media that are neutral to the materials of the parts in contact with the medium | |||
| Temperature of the working environment T, o C | from minus 15 to 300 | |||
| Ambient temperature, o C | from minus 15 to 50 | |||
| Connection dimensions and dimensions of sealing surfaces | execution 1 row 2 according to GOST 12815 | |||
| MIM type | MIM 200 | MIM 250 | MIM 320 | |
| Valve weight, kg | 24 | 40 | 45 | 70 |
OOO "Uralkomlektenergomash"
主要产品/服务: Oilfield equipment