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500X Pressure Relief Or Sustaining Valve


500X PRESSURE RELIEF OR SUSTAINING valve

Product Simple Specification

The valve instantly opens when the pressure in the pipeline exceeds the preset safe level, thus relieving excessive pressure from the pipeline. When the pressure returns to normal, the valve closes slowly, at an adjustable speed.The valve also can be used to sustain upstream pressure to a preset pressure value.

Product Specification

The 500X pressure release/maintenance valve is mainly used in fire fighting or other water supply systems to prevent the occurrence of overpressureor maintain the pressure of a fire fighting water supplysystem. After the fire pump is shut down, the valve can also serve to reduce the impact caused by water hammer. It can also be used as the water hammer eliminating device in large water supply systems.The valve utilizes a self-cleaning screen installed at the inlet of the valve control system, so suspended particles of relatively big specific gravities and diameters can not enter the control system.This guarantees the smooth and unobstructed circulation of the system, thereby ensuring the safe and reliable operation of the valve. With the help of the valve, the system, suitable for 600 caliber or below pipes, is able to operate smoothly, high in strength and offer a long service life.

The Main Appearance Connects Size ~units~mm

DN
L
D
D1
D2
Z-~d
A1
A
H1
H
PN10
PN16
PN25
PN10
PN16
PN25
PN10
PN16
PN25
PN10
PN16
PN25
50
203
165
165
165
125
125
125
102
102
99
4-~18
4-~18
4-~18
134
343
516
88
65
216
185
185
185
145
145
145
122
122
118
4-~18
4-~18
8-~18
141
355
520
97
80
241
200
200
200
160
160
160
133
133
132
8-~18
8-~18
8-~18
146
360
537
105
100
292
220
220
235
180
180
190
158
158
156
8-~18
8-~18
8-~18
156
400
596
120
125
330
250
250
270
210
210
220
184
184
184
8-~18
8-~18
8-~18
170
420
653
135
150
356
285
285
300
240
240
250
212
212
211
8-~18
8-~18
8-~18
186
435
709
160
200
495
340
340
360
295
295
310
268
268
274
8-~22
12-~26
12-~26
206
480
805
190
250
622
395
405
425
350
355
370
320
320
330
12-~22
12-~26
12-~26
226
530
855
240
300
698
445
460
485
400
410
430
370
370
389
12-~2
12-~26
12-~26
246
575
953
270
350
787
505
520
555
460
470
490
430
430
448
16-~22
16-~26
16-~26
275
620
990
300
400
960
565
580
620
515
525
550
482
482
503
16-~26
16-~30
16-~30
286
668
1030
335
450
1000
615
640
670
565
585
600
532
545
548
20-~26
20-~30
20-~30
286
668
1055
360
 · Related Products
 100X Diaphragm Control Ball Valve
 200X Pressure Reducing Valve
 300X Flow Control Check Valve
 500X Pressure Relief Or Sustaining Valve
 600X Motorized Valve
 700X Pump Control Valve
 800X Pressure Difference Balance Valve
 900X Emergency Shut-off Valve
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