500X Pressure Relief or Sustaining Valve, 500X Pressure Relief or Sustaining Valve Manufacturer,500X Pressure Relief or Sustaining Valve Manufacturer, 500X Pressure Relief or Sustaining Valve Supplier,Products,Export,Facotry.

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.
The 500X pressure release/maintenance valve is mainly used in fire fighting or other water supply systems to prevent the occurrence of overpressure or maintain the pressure of a fire fighting water supply system. 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.

Dimensions( mm):

DN	L	D			D1			D2			Z-~d			A1	A	H1	H
DN	L	PN10	PN16	PN25	PN10	PN16	PN25	PN10	PN16	PN25	PN10	PN16	PN25	A1	A	H1	H
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

Main Technical Features:

PN	1.0MPa	1.6MPa	2.5MPa
Shell Test	1.5MPa	2.4MPa	3.75MPa
Seal Test	1.1MPa	1.76MPa	2.75MPa
Suitable Temperature	«80ºC
Suitable Medium	Water