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RD2 Series Regulator

Brand: Swagelok Company
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.
Features
  • Piston sensing
  • Integral 25 μm filter
  • Cartridge poppet assembly for ease of service
  • Bottom mounting 
  • Maximum Inlet Pressure: psig: 5,800 (bar: 400, kPa: 39,989)
  • Maximum Outlet Pressure: psig: 5,800 (bar: 400, kPa: 39,989)
  • Sensing Type: Piston
  • Temperature Range: -20 to 80°C (-4 to 176°F)
  • Flow Coefficient: 0.05 Cv
  • Connections:
    • Inlet/Outlet: 1/4" Female NPT
    • Gauge: 1/4" Female NPT
    • Dome: 1/8" Female NPT
  • Construction Material:
    • Piston: 316L Stainless Steel
    • Body Material: 316L Stainless Steel
    • O-Ring: FKM, Nitrile, EPDM, FFKM
    • Dome: 316L Stainless Steel
    • Poppet: 431 Stainless Steel
    • Seat: PEEK, PCFTE
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.
Features
  • Piston sensing
  • Integral 25 μm filter
  • Cartridge poppet assembly for ease of service
  • Bottom mounting 
  • Maximum Inlet Pressure: psig: 5,800 (bar: 400, kPa: 39,989)
  • Maximum Outlet Pressure: psig: 5,800 (bar: 400, kPa: 39,989)
  • Sensing Type: Piston
  • Temperature Range: -20 to 80°C (-4 to 176°F)
  • Flow Coefficient: 0.05 Cv
  • Connections:
    • Inlet/Outlet: 1/4" Female NPT
    • Gauge: 1/4" Female NPT
    • Dome: 1/8" Female NPT
  • Construction Material:
    • Piston: 316L Stainless Steel
    • Body Material: 316L Stainless Steel
    • O-Ring: FKM, Nitrile, EPDM, FFKM
    • Dome: 316L Stainless Steel
    • Poppet: 431 Stainless Steel
    • Seat: PEEK, PCFTE
Models matching criteria: 256
  • Seal Material - Nitrile
  • Piston Seal Material - FFKM
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - FFKM
  • Seat Material - PEEK
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - EPDM
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - Nitrile
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - EPDM
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PEEK
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - EPDM
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - FFKM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - EPDM
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - EPDM
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - FFKM
  • Seat Material - PEEK
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - FFKM
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PEEK
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - EPDM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - EPDM
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - FFKM
  • Seat Material - PEEK
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Nitrile
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Nitrile
  • Piston Seal Material - FFKM
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - FFKM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - EPDM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PEEK
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - FFKM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - Fluorocarbon (FKM)
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - EPDM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - EPDM
  • Piston Seal Material - FFKM
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - EPDM
  • Seat Material - PCTFE
  • Filter - Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - Fluorocarbon (FKM)
  • Piston Seal Material - EPDM
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
  • Seal Material - FFKM
  • Piston Seal Material - Nitrile
  • Seat Material - PCTFE
  • Filter - No Filter
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock

Specifications

Ambient Temperature Range

  • -20° to 80° C (-4° to 176° F)

Enclosure, Body Material

  • 316L Stainless Steel

Filter

  • 316 Stainless Steel
  • Filter, 25 μm

Flow Rate

  • 0.05 Cv

Media

  • Gas
  • Liquids & Gases

Mounting

  • Bottom Mounting
  • Panel Mount

NACE & NIST

  • NACE MR-0175, ISO 15156

NPT Connection

  • 1/4” NPT Female
  • 1/8” NPT Female

O-Ring Material

  • Ethylene Propylene (EPR)
  • FKM
  • Nitrile
  • Perfluorocarbon - FFKM

Piston Material

  • 316L Stainless Steel

Piston O-Ring

  • EPDM
  • Fluorocarbon (FKM)
  • Nitrile

Piston Seal Material

  • EPDM
  • FFKM
  • Fluorocarbon (FKM)
  • Nitrile

Poppet Material

  • 431 Stainless Steel

Pressure Range

  • bar: 0 to 400
  • kPa: 0 to 39,999
  • psi: 0 to 5,800

Seat / Seal Material

  • EPDM
  • FFKM
  • Fluorocarbon (FKM)
  • Nitrile
  • PCTFE
  • PEEK

Special Cleaning & Packaging

  • ASTM G93 Level C-Cleaned
  • Not Required

Supply Pressure - Maximum

  • bar: 400
  • kPa: 39,989
  • psig: 5,800