Images are representations only.

LBS4 Series Regulator

Brand: Swagelok Company
The BS series back-pressure regulators are suitable for most gases and liquids.

The BS series regulators feature a choice of sensing types (diaphragm or piston), and seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions.

The LBS series are low-pressure, high-accuracy versions of the BS series regulators.
Features
  • Diaphragm Sensing
  • Bottom Mounting and panel mounting
  • Maximum Inlet Pressure: psig: 507 (bar: 35, kPa: 3,496)
  • Maximum Control Inlet Pressure: psig: 290 (bar: 20, kPa: 1,999)
  • Sensing Type: Diaphragm
  • Temperature Range: -20 to 80°C (-4 to 176°F)
  • Flow Coefficient: 1.3 Cv
  • Connections:
    • Inlet/Outlet: 1/2" NPT
    • Gauge: 1/4" NPT 
  • Materials of Construction:
    • Poppet: 431 Stainless Steel
    • Body: 316L Stainless Steel
    • Diaphragm: PTFE, 316L Stainless Steel
    • O-Ring: PTFE
    • Seat Seal Material: FKM, FFKM, EPDM, Nitrile
The BS series back-pressure regulators are suitable for most gases and liquids.

The BS series regulators feature a choice of sensing types (diaphragm or piston), and seat and seal materials to accommodate a variety of pressure, temperature, and flow conditions.

The LBS series are low-pressure, high-accuracy versions of the BS series regulators.
Features
  • Diaphragm Sensing
  • Bottom Mounting and panel mounting
  • Maximum Inlet Pressure: psig: 507 (bar: 35, kPa: 3,496)
  • Maximum Control Inlet Pressure: psig: 290 (bar: 20, kPa: 1,999)
  • Sensing Type: Diaphragm
  • Temperature Range: -20 to 80°C (-4 to 176°F)
  • Flow Coefficient: 1.3 Cv
  • Connections:
    • Inlet/Outlet: 1/2" NPT
    • Gauge: 1/4" NPT 
  • Materials of Construction:
    • Poppet: 431 Stainless Steel
    • Body: 316L Stainless Steel
    • Diaphragm: PTFE, 316L Stainless Steel
    • O-Ring: PTFE
    • Seat Seal Material: FKM, FFKM, EPDM, Nitrile
Close

Displaying prices & availability for Ohio, United States in USD. Change location.

Models matching criteria: 96
LBSN4-02-2-TMN-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Nitrile
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TME-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - EPDM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TMV-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TTV-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TV
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TE
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - EPDM
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-2-TTN-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-1-TTF
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - FFKM
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-2-TMF
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - FFKM
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-2-TMF-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - FFKM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TN-N-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TTF-N-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - FFKM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TTN-N
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-2-TMV-N
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TTE
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - EPDM
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TTF-N
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - FFKM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-1-TTF-N-G93
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - FFKM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-1-TMV-G93
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TTF-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - FFKM
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TV-N-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-1-TTN-N
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TE-N
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - EPDM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TF-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - FFKM
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TN-N
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TN
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - Nitrile
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-1-TMV-N-G93
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TTE-N
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - EPDM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-1-TTE-G93
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - EPDM
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TTV-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TV-N
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-3-TTN-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Nitrile
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-1-TMV
view description
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
LBSN4-02-2-TTE-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - EPDM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TTV-N-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Fluorocarbon (FKM)
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TTN-N-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TTE-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - EPDM
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TMN-N-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - Nitrile
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TMF-G93
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - 316L Stainless Steel
  • Seat Seal Material - FFKM
  • Agency Approvals - None
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-3-TF-N-G93
view description
  • Pressure Range - psig: 0 to 290 (bar: 0 to 20, kPa: 0 to 2,000)
  • Seat Seal Material - FFKM
  • Agency Approvals - NACE MR017, ISO 15156
  • Special Cleaning - ASTM G93 Level C-Cleaned
Out of Stock
LBSN4-02-2-TTN
view description
  • Pressure Range - psig: 0 to 130 (bar: 0 to 9, kPa: 0 to 896)
  • Diaphragm - PTFE (Polytetrafluoroethylene)
  • Seat Seal Material - Nitrile
  • Agency Approvals - None
  • Special Cleaning - Not Required
Out of Stock
Show More Models (56)
Close
Close

Specifications

Brand

Actuator Type

  • Knob

Ambient Temperature Range

  • -20° to 80° C (-4° to 176° F)

Diaphragm Material

  • 316L Stainless Steel
  • PTFE

Enclosure, Body Material

  • 316L Stainless Steel

Flow Rate

  • 1.3 Cv

Media

  • Gas
  • Liquids & Gases

Mounting

  • Bottom Mounting
  • Panel Mount

NACE & NIST

  • NACE MR-0175, ISO 15156

NPT Connection

  • 1/2" NPT Female
  • 1/4" NPT Female

O-Ring Material

  • PTFE

Poppet Material

  • 431 Stainless Steel

Pressure Range

  • bar: 0 to 20.0
  • kPa: 0 to 1,999
  • psig: 0 to 290

Seat / Seal Material

  • 316L Stainless Steel
  • EPDM
  • FFKM
  • Fluorocarbon (FKM)
  • Nitrile
  • PTFE

Special Cleaning & Packaging

  • ASTM G93 Level C-Cleaned
  • Not Required

Supply Pressure - Maximum

  • bar: 35
  • kPa: 3,495
  • psig: 507
Close