Internal Thread Pressure Reducing and Maintaining Valve For Water

Product Drawing

Internal thread pressure reducing and maintaining valve for water reducing valves
Internal Thread Pressure Reducing and Maintaining Valve for Water Reducing Valves

Summary

The production YW110. YW116. YW125. YFW110 type pressure-reducing-and-maintaining valve, has been developed to the second generation, the main characteristics of the second generation product: 1,the diameter more than DN65 is piston-type, and improve more than 3 times service life replacing diaphragm, 2 the diameter less than DN50, a nylon reinforced the flat diaphragm rubber instead of the original diaphragm, also improve life more than 3 times. Applicable medium: water, air. Medium temperature: 0 ~90 ° C.

Material of Main Parts

Name of Parts Materials
spring cap,body,bonnet GG-20#, WCB
rubber diaphragm Nylon Reinforced Buna "N"
sealing gasket NBR
adjustable spring Si-Mn Steel
piston,cylinder sleeve 304 S.S.
valve rod Copper

Main extrenal dimensions（Flange dimension PN1.0MPa abide BY GB4216.4-84 STANDARD,PN1.6MPa ABIDE BY GB4216.5-84 Standard,PN2.5MPa abide BY GB9113.4-88 STANDARD）

type dimensions (mm)
YW410-10 YW416-16 TW425-25 DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400
L 108 117 127 140 165 203 216 241 292 330 356 495 622 398 787 914
H 105 105 115 120 165 165 190 250 274 350 368 395 433 475 520 570
YW110-10 YW116-16 pipe thread 1/2 3/4 1 1 1/4 1/2 2                    
L 100 100 120 150 150 180                    
H1 135 135 152 180 196 201                    
H2 41 41 45 53 56 58