Product Features

※ High pressure differential stable operation, with a pressure drop ratio of up to 120:1

※ Small size, can be installed in any position, easy to maintain

※ Spring direct acting, safe and reliable, durable and long-lasting

※ Can be used as either a monitoring valve or a working valve for two functional options

※ Simple pressure setting, high adjustment accuracy, and wide flow range

Product parameters

Standard execution	EN 334
nominal pressure	CLass150 ～ CLass900 （ 2MPa - 15MPa）
Nominal size	DN25 ～ DN50 （NPS 1〞 ～ NPS 2〞）
Connection method	Flange ANSI B16.5 RF, RTJ
Design Temperature	-29℃ ～ 60℃ ； - 46℃ ～ 60℃
Maximum inlet pressure	15MPa (can be lower than this value according to the flange grade)
Export pressure range	0.07MPa～4MPa
Accuracy level AC	≤± 1~15% (AC1~AC15) depends on the operating pressure range
Close pressure level SG	≤ 5~20% (SG5~SG20) depending on the operating pressure range
Flow range	≤ 4300m3/h
protection grade	IP65
Main materials	Main valve body cast steel A 216 WCB A 352 LCC Commander shell cast steel Internal components made of stainless steel, steel, and copper Close the spring steel (X750, A276316) Sealing material reinforced polytetrafluoroethylene, nitrile rubber, synthetic rubber

Working principle

As shown in the figure below, when downstream demand decreases, the pressure on the lower side of the diaphragm increases. This pressure overcomes the set pressure of the pressure regulating valve (set by the set spring). By linking the push rod assembly, rotating rod, and small shaft, the valve gasket is brought closer to the valve seat and the gas flow is reduced. On the contrary, when downstream demand increases, the pressure on the underside of the diaphragm decreases. The spring forces the push rod assembly to pull the valve gasket downwards, away from the valve seat, and increase the gas flow rate.

Product Structure Diagram

Product dimension diagram

Product Connection

Note: When using S100H/S100HM type pressure regulating valves, the B dimension in the table needs to be increased by 10mm.

Comparison Table of Pressure and Flow of Pressure Regulating Valve

Product ordering and selection

Selection of pressure regulating valve

Product Model Description

Other special configuration instructions

The external pressure connection size of S100M and S100HM is 1/4'FNPT thread, and it is recommended to use a φ 10 sleeve and stainless steel pipe.