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Spring piston pressure reducing valve

Technical Parameters

Product model: Y42X
Nominal diameter: DN20~400mm
Nominal pressure: PN1.6~2.5Mpa
Applicable temperature: 0-80 ℃
Applicable medium: water, air

Product Details

Product Overview
This series of pressure reducing valves belongs to the pilot piston type pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of parts such as the valve seat, main valve disc, piston, cylinder liner, spring, etc. The pilot valve is mainly composed of parts such as valve seat, valve disc, diaphragm, spring, adjustment spring, etc. By adjusting the spring pressure to set the outlet pressure, using a diaphragm to sense the change in outlet pressure, and adjusting the size of the flow area at the throttle position of the main valve through the opening and closing of the pilot valve to drive the piston, the pressure reducing and stabilizing function is achieved.


Main overall connection dimensions

DN Main overall connection dimensions
L H Hl
1.6/2.5MPa 4.0MPa
15 160 180 295 90
20 160 180 330 98
25 180 200 330 110
32 200 220 330 110
40 220 240 345 125
50 250 270 345 125
65 280 300 350 130
80 310 330 385 160
100 350 380 385 170
125 400 450 400 200
150 450 500 415 210
200 500 550 475 240
250 650 525 290
300 800 580 335
350 850 620 375
400 900 660 405
450 900 730 455
500 950 750 465

Main overall connection dimensions(PN6.4-16.0):

DN Main overall connection dimensions
L H Hl
6.4MPa 10.0/16.0MPa
15 180 180 305 105
20 180 200 340 105
25 200 220 340 120
32 220 230 340 120
40 240 240 355 135
50 270 300 355 135
65 300 340 360 140
80 330 360 395 17
100 380 400 185
125 450 415 215
150 500 430 225
200 550 495 260
250 650 545 310
300 800 600 355
350 850 640 395
400 900 690 435
500             950 780 495



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