Pressure Reducing Valve Introduction

A Pressure Reducing Valve (PRV) is a type of control valve that reduces the input pressure of a fluid to a desired value at its output. PRVs are used in various applications to ensure a stable and safe pressure in systems. The valve operates using a spring-loaded diaphragm or piston mechanism. When the inlet pressure increases, it forces the diaphragm or piston to move, which in turn reduces the flow passage and lowers the outlet pressure. Conversely, if the inlet pressure decreases, the diaphragm or piston moves to increase the flow passage, raising the outlet pressure.

Pressure Reducing Valves are essential components in various fluid systems, providing critical pressure control to enhance safety, efficiency, and reliability. Whether in water supply, steam, gas, or industrial applications, PRVs play a vital role in maintaining optimal operating conditions. Regular maintenance and inspection are key to ensuring their long-term performance and effectiveness.

Pressure Reducing Valve Drawing

Standard of Implementation

Property	Details
Type:	Flange
Flange:	DIN, BS, UNI, ISO, ANSI, AS, JIS
Working Pressure:	PN16 (200 PSI)
Application:	HVAC, Water Supply & Sewage, Food & Beverage, Chemical/Petrochemical Processing, Power and Utilities, Paper and Pulp, Ship Building

Standard Materials Of Main Parts

NO	PART NAME	MATERIAL
1	Body	CI
2	Seat	Brass
3	Platen	Carbon Steel
4	Seat	EPDM
5	Disc	DI
6	Diaphragm	EPDM
7	Platen	Carbon Steel
8	Nut	Stainless Steel
9	Stem	Stainless Steel
10	Spring	Stainless Steel
11	Eye Bolt	Carbon Steel
12	Bonnet	DI
13	Bolts	Stainless Steel
14	Needle Valve	Brass
15	Pressure Gauge
16	Pressure Gauge
17	Pilot Valve	Brass
18	Ball Valve	Brass

Dimensions:(mm)

SIZE		L	PN10				PN16
in	DN		D1	n-d	D2	D	D1	n-d	D2	D
2	50	215	125	4-19	99	160	125	4-19	99	160
2.5	65	235	145	4-19	118	180	145	4-19	118	180
3	80	250	160	8-19	132	195	160	8-19	132	195
4	100	290	180	8-19	156	215	180	8-19	156	215
5	125	325	210	8-19	184	245	210	8-19	184	245
6	150	360	240	8-23	211	280	240	8-23	211	280
8	200	420	295	8-23	266	335	295	12-23	266	335
10	250	510	350	12-23	319	395	355	12-28	319	405
12	300	600	400	12-23	370	445	410	12-28	370	460
14	350	670	460	16-23	429	505	470	16-28	429	520
16	400	730	515	16-27	480	565	525	16-31	480	580
18	450	730	565	20-28	530	615	585	20-31	548	640
20	500	800	620	20-28	582	670	650	20-34	609	715
24	600	970	725	20-31	682	780	770	20-37	720	840
28	700	1110	840	24-31	794	895	840	24-37	794	910
32	800	1200	950	24-34	901	1015	950	24-40	901	1025