The RS series pressure-reducing regulators are suitable for most gases and liquids. The RS series regulators feature various poppet designs, a choice of sensing types (diaphragm or piston), and seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions.
The Spring-Loaded Regulators are available in sizes from 1/4 to 2 in. with a choice of threaded or flange end connections. Along with a variety of gauge connection configurations, self venting, internal filter, external feedback, antitamper, special cleaning to ASTM G93 Level C, and NACE MR0175/ ISO 15156-compliant models.
RS(H)2 Series
Compact, General-Purpose, Spring-Loaded Pressure-Reducing Regulators
Features
- Bottom mounting
- Sealed spring housing
- Low-friction piston for better control
- Cartridge poppet assembly with 25 μm filter for ease of service
- Self-venting
- Threaded vent below panel for safety
RS(H)4, RS(H)6, and RS(H)8 Series
General-Purpose, Spring-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm or piston sensing
- Threaded vent to monitor sensing seal integrity
- Gauge connections—choice of 4 configurations
- NACE MR0175/ISO 15156-compliant models
- Self-venting
- Special cleaning to ASTM G93 Level C
RS(H)10, RS(H)15, and RS(H)20 Series
General-Purpose, Spring-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- RS(H)10 and RS(H)15—diaphragm or piston sensing RS(H)20—diaphragm sensing only
- NACE MR0175/ISO 15156-compliant models
- Special cleaning to ASTM G93 Level C
High Sensitivity Regulators
LRS(H)4 Series
High-Sensitivity, Spring-Loaded Pressure-Reducing Regulators
Features
- Diaphragm sensing
- Large diaphragm for higher accuracy
- Diaphragm materials: PTFE or 316L SS for most pressure control ranges
- Bottom mounting
- Low torque minimizes stem wear
- Nonventing
- Cartridge poppet assembly in LRSH4 for ease of service
LPRS4, LPRS6, and LPRS8 Series
High Sensitivity, Spring-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm sensing
- Large diaphragm for higher accuracy
- Suction tube for reduced droop
- Self-venting
- Ideal as second-stage regulator
LPRS10 and LPRS15 Series
High-Sensitivity, Spring-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm or piston sensing
- High flow and high accuracy
- Suction tube for reduced droop
- Ideal as second-stage regulator
Dome Loaded Regulators
These pressure-reducing, dome-loaded and air-loaded regulators are suitable for most gases and liquids, including acids and oils. These regulators feature various poppet designs, a pressure-sensing diaphragm (piston in RD2 series), and a choice of seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions.
RD2 Seriess
Compact, General-Purpose Dome-Loaded Pressure-Reducing Regulators
Features
- Piston sensing
- Integral 25 μm filter
- Cartridge poppet assembly for ease of service
- Cartridge poppet assembly with 25 μm filter for ease of service
- Bottom mounting
Options
- NACE MR0175/ISA 15156-compliant models special cleaning to ASTM G93 Level
- No filter
- Panel mounting kit (no disassembly required)
RD(H)6 and RD(H)8 Series
General-Purpose, Dome-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm sensing
- Ports - 1/4 in. female NPT outlet gauge port
Options
- NACE MR0175/ISA 15156-compliant models
- Special cleaning to ASTM G93 Level C
- Pilot regulator
- Gauge connections - choice of 4 configurations
RD(H)10 and RD(H)15 Series
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm sensing
- Integral pilot regulator with dynamic regulation
- Large dome for improved stability
- Pilot regulator for improved performance
Options
- Pilot regulator for improved performance
-
External feedback (EF) for improved performance
- EF to main regulator limited by standard outlet pressure range
- NACE MR0175/ISO 15156-compliant models
- Special cleaning to ASTM G93 Level C
- Gauge connections
RD(H)20 and RD(H)25 Series
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm sensing
- Integral pilot regulator with dynamic regulation
- Large dome for improved stability
- Special cleaning to ASTM G93 Level C
RD(H)30 and RD(H)40 Series
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators
Features
- Balanced poppet design
- Diaphragm sensing
- Integral pilot regulator with dynamic regulation
- Large dome for improved stability
LPRD20, LPRD25, LPRD30, LPRD40 Series
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators, High Sensitivity
Features
- Balanced poppet design
- Diaphragm sensing
- Integral pilot regulator (LPRS4 series) with dynamic regulation
- High flow
- Large diaphragm for high accuracy
- Integral feedback line
- Inlet and outlet gauges
- Special cleaning to ASTM G93 Level C
Learn more about our regulators and services
Technical Assistance
Our regulator expert can help you choose one that will maintain pressure and minimize droop over a wide range of pressures and flows.
Training
Enhance your team’s critical skills for developing, building, and maintaining high-performance fluid systems with Swagelok's virtual training courses.
Technical Articles
Swagelok Reference Point provides industrial professionals with insights and analysis intended to help decrease downtime, increase efficiencies, troubleshoot issues, and maintain a safe workplace staffed by effective associates.