YB Series Pressure-Reducing-Aad-Maintaining Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
YB series pressure-reducing-and-maintaining valve reducing valves
Pressure Reducing and Maintaining Valve Products
YB410, YB416, YB425 pressure reducing and maintaining valve, is a kind of piston pressure control valve. Diameter is less than DN50, the proposal chooses (Y110 and Y116 (threaded connections) diaphragm-type pressure-reducing valve, Diameter is not less than DN50, the proposal chooses (Y410 and Y416 (flange-connection) piston valve. These valves are adjustable pressure-reducing valve, the pressure can be adjusted to the requirement before use, back-pressure always reduce to and maintain the setting value after using, can not change with the front-pressure and flow fluctuation. Select high quality material(diaphragm is nylon enhanced rubber diaphragm), with reliable performance and long service life.
Technical parameter of pressure reducing and maintaining valve
Nominal pressure：1.0～2.5MPa
Nominal diameter：15～400mm
Applicable medium： Gas or non-corrosion liquid
Applicable temperature：0～90℃
Flange standard：GB/T 1724.6 GB/T 9113
Test standard：GB/T 13927 AP1598
Material of main parts of pressure-reducing-and-maintaining valve
| name of part | spring cap,body,bonnet | rubber diaphragm | sealing gasket | adjustable spring | piston,cylinder sleeve | valve rod |
| material | cast iron,ball iron,cast steel | nylon strengthen rubber | NBR | Si-Mn Steel | stainless steel | copper,stainless steel |
Main external connecting dimensions of pressure reducing and maintaining valve
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
| L | 108 | 117 | 127 | 140 | 165 | 203 | 216 | 241 | 292 | 330 | 356 | 495 | 622 | 698 | 787 | 914 |
| H | 105 | 105 | 115 | 120 | 165 | 165 | 190 | 250 | 274 | 350 | 368 | 395 | 433 | 475 | 520 | 570 |
