Fire Protection Pressure Reducing Valve

• Customization: Available
• Size: 2"-24"
• Pressure: Low Pressure
• Model NO.: 200X
• Pressure Rate: Pn10/16/25
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Diaphragm
• Material: Cast Iron/Ductile Iron/Stainless Steel
• Coating: Epoxy Resin Coated to 300 Microns Inside & Outside
• Transport Package: Wooden Case
• Specification: DN50-DN600
• Trademark: Blank
• Origin: Fujian
• HS Code: 8481804090
• Production Capacity: 3000 Sets Per Month

Product Description

Fire Protection Pressure Reducing Valve

Introduction
The pressure-reducing valve is adjusted to reduce the inlet pressure to a desired outlet pressure and rely on the energy of the medium itself to keep the outlet pressure automatically stable. From fluid mechanics point of view, pressure reducing valve is a throttling element, local resistance to change that by changing the throttling area, change the kinetic energy of the flow velocity and fluid, different pressure loss, so as to achieve the goal of decompression. Then the control and adjustment system can be adjusted to balance the pressure fluctuation of the valve and the spring force, so that the pressure of the valve remains constant within a certain margin of error. It is widely used in high rise buildings, water pressure of the city water supply pipe, and other occasions, so as to ensure the proper service water pressure and flow of water points in the water supply system.

Specification
  

 

 

No..	Part	Material
1	Body	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
2	Seat	410 S.S. / SS 304 / SS 316
3	Stem	410 S.S. / SS 304 / SS 316
4	O-ring washer	Cast Iron
5	O-ring	NBR
6	O-ring	NBR
7	Disc	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
8	Diaphragm	Rubber
9	Diaphragm Washer	Cast Iron
10	Screw	Bronze
11	Spring	Spring steel
12	Cover	Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT)
13	Ball Valve	Bronze
14	Ball valve	Bronze
15	Pressure show
16	Pilot valve	Bronze
17	Hang ring	Steel
18	Pilot socket	Bronze
19	Needle valve	Bronze
20	Ball valve	Bronze
21	Pressure show
22	Stud	Steel
23	Screw	Steel

 

DN(mm)		50	65	80	100	125	150	200	250	300	350	400	450	500	600
L		203	235	285	360	400	455	585	650	800	860	915	980	1075	1230
PN10	D	160	180	195	215	245	280	335	390	440	500	565	615	670	780
	D1	125	145	160	180	210	240	295	350	400	460	515	565	620	725
PN16	D	160	180	195	215	245	280	335	405	460	520	580	640	705	840
	D1	125	145	160	180	210	240	295	355	410	470	525	585	650	770
PN25	D	160	180	195	230	270	300	360	425	485	550	610	660	730	840
	D1	125	145	160	190	220	250	310	370	430	490	550	600	660	770
H		395	405	430	510	560	585	675	730	760	840	910	1030	1135	1270

 
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