Home > Products Categories > Gas Control Equipment > Pressure Regulators > Pressure-Reducing Regulators

Pressure Reducing Regulator Diaphragm Type

Pressure Reducing Regulator Basic Knowledge

The function of a pressure reducing regulator is to precisely reduce a high upstream pressure of a gas or liquid (from a cylinder, compressor, pump, etc.) to a lower, stable pressure for the user’s application.
The regulator will attempt to maintain and control the outlet pressure within limits as other conditions vary but the regulator will not control flow, only the delivery pressure. A regulator is also not to be used as a shut-off device as there is always a small amount of leakage across the seat. A shut-off valve
must be used downstream of the regulator if isolation is required.

Pressure-reducing regulators reduce inlet pressure to a desired outlet pressure and maintain stability even with fluctuations in inlet pressure. These regulators are widely used in various piping systems. The key characteristic of pressure-reducing regulators is their ability to reduce inlet pressure to a lower outlet pressure during medium flow. Diaphragm type pressure-reducing regulators use a metal diaphragm, offering excellent sensitivity and stable set point pressures. Their diaphragm-sealed construction makes them ideal for high purity applications, while tied-diaphragm designs provide positive shutoff for enhanced safety. Some models come with a captured vent port to safely release the medium in the event of accidental diaphragm sealing failure.

Single Stage Type Regulator Diaphragms RDSC-RDGH-RDGN Series

RDSC-RDGH-RDGN Series Sensitive, Medium Flow, High Flow Diaphragm Regulators feature a single-stage pressure reduction design diaphragm Regulator
pressure reducing regulators

General Diaphragm Regulators RDGC Series

RDGC Series General Diaphragm Valves feature a single stage pressure reduction design with a combination of metal diaphragm and free poppet.

RTGC Series General Tied Diaphragm Springless Regulator

RTGC Series General Tied Diaphragm Regulators feature a single-stage pressure reduction design

Diaphragm Regulators Medium Flow RDGH Series

RDGH Series Medium Flow Diaphragm Regulators feature a single-stage pressure reduction design with a combination of metal diaphragm and free poppet
Two Stage Regulators

Two-Stage Diaphragm Regulators RDDC Series

RDDC Series Two-Stage Diaphragm Regulators feature a two-stage Pressure Reducing Regulators
pressure reducing regulators

Sensitive Diaphragm Regulators RDSC Series

RDSC Series Sensitive Diaphragm Regulators feature a single-stage pressure reduction design and a large-diameter diaphragm

RSGC Series General Tied Diaphragm Regulators

RSGC Series General Tied Diaphragm Regulators feature a single-stage pressure reduction design

Diaphragm Regulators High Flow RDGN Series

RDGN Series High Flow Diaphragm Regulators feature a single-stage pressure reduction design with a combination of metal diaphragm and free poppet for sensitivity and stable outlet pressure
Steam Regulators

Heated Steam Regulators RDVC Series

RDVC Series Steam Heated Regulators are designed to heat fluids for analyzer systems, primarily to preheat fluids and prevent gas condensation or liquid evaporation.
Miniature Diaphragm Regulators RDCC

RDCC Series Miniature Diaphragm Regulators

RDCC Series Miniature Diaphragm Regulators feature a single-stage pressure reduction design with a combination of metal diaphragm and free poppet

RTCC Series Compact Tied Diaphragm Springless Regulators

RTCC Series Compact Tied Diaphragm Springless Regulators feature a single-stage pressure reduction design and a compact form, making them ideal for low flow ultra high purity applications.

RSGG Series Medium Flow Tied Diaphragm Regulators

RSGG Series Medium Flow Tied Diaphragm Regulators feature a single-stage pressure reduction design. The tied diaphragm construction provides positive shutoff.