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RD (H) 30, 40 Series Regulator
Brand: Swagelok CompanyThese 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, and a choice of seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions.
The RDH series regulators are high-pressure versions of the RD series regulators.
Features- Balanced poppet design
- Diaphragm sensing
- Integral pilot regulator with dynamic regulation
- Dome-to-outlet pressure ratio approximately 1:1
- Large dome for improved stability
- Pilot regulator for improved performance
- External feedback (EF) for improved performance
- EF to main regulator limited by standard outlet pressure range
- EF to pilot regulator limited to 290 psig (20.0 bar)
- Maximum Inlet Pressure:
- RD - psig: 1,015 psig (bar: 70, kPa: 6,998); psig: 507 (bar: 35, kPa: 3,496) with LRS4 pilot regulator
- RDH - psig: 4,060 (bar: 280, kPa: 27,990)
- Maximum Outlet Pressure:
- RD - psig: 1,015 (bar: 70, kPa: 6,998)
- RDH - psig: 2,900 (bar: 200, kPa: 19,990)
- Sensing Type: Diaphragm
- Temperature Range: -20 to 80° C (-4 to 176° F)
- Flow Coefficient: 36, 73 Cv
- Connections:
- Inlet/Outlet: 3, 4" EN or ASME Flange
- Gauge: Use P1 gauge connection of pilot regulator
- Dome: 1/4 in. ISO/BSP Parallel Thread
- Materials of Construction:
- Body: 316L Stainless Steel
- O-Ring: Fluorocarbon FKM, Nitrile, EPDM
- Poppet: 316L Stainless Steel
- Dome: 316L Stainless Steel
- Diaphragm: EPDM, FKM, Nitrile
- Seat: 316L Stainless Steel
- Seat Seal:
- RD: Fluorocarbon FKM, Nitrile, EPDM
- RDH: Polyurethane
Specifications
Brand
Ambient Temperature Range
- -20° to 80° C (-4° to 176° F)
Diaphragm Material
- EPDM
- FKM
- Nitrile
Dome
- 316L Stainless Steel
Enclosure, Body Material
- 316L Stainless Steel
Feedback
- External Feedback to Main Regulator
- External Feedback to Pilot Regulator
- No Feedback
Flange Size - 3” (DN 80)
- 3" (DN 80) - 150#
- 3" (DN 80) - 1500#
- 3" (DN 80) - 2500#
- 3" (DN 80) - 300#
- 3" (DN 80) - 600#
- 3" (DN 80) - PN 16
- 3" (DN 80) - PN 40
Flange Size - 4” (DN 100)
- 4" (DN 100) - 150#
- 4" (DN 100) - 1500#
- 4" (DN 100) - 2500#
- 4" (DN 100) - 300#
- 4" (DN 100) - 600#
- 4" (DN 100) - PN 16
- 4" (DN 100) - PN 40
Flange Type
- Raised Face Smooth
- RTJ - Ring Typical Joint
Flow Rate
- 36 Cv
- 73 Cv
Media
- Gas
- Liquids & Gases
NACE & NIST
- NACE MR-0175, ISO 15156
O-Ring Material
- Ethylene Propylene (EPR)
- FKM
- Nitrile
Poppet Material
- 316L Stainless Steel
Pressure Range
- bar: 0 to 200
- kPa: 0 to 19,990
- psig: 0 to 2,900
Seat / Seal Material
- 316L Stainless Steel
- EPDM
- Fluorocarbon (FKM)
- Nitrile
- Polyurethane
Special Cleaning & Packaging
- ASTM G93 Level C-Cleaned
- Not Required
Supply Pressure - Maximum
- bar: 35 to 280
- kPa: 3,496 to 27,990
- psig: 507 to 4,060
