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Instantly add the LRS (H) 4 Pressure-Reducing Regulator and 50,000+ more product series to your store or catalog  
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Swagelok, High-Sensitivity Spring-Loaded Pressure-Reducing Regulator, LRS(H)4

LRS (H) 4 Pressure-Reducing Regulator

Brand: Swagelok Company
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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 RSH series regulators are a high-pressure version of the RS series regulators, and the LRS and LPRS series are low pressure, high-accuracy versions of the RS series regulators.
Features
  • Diaphragm sensing
  • Large diaphragm for higher accuracy
  • Diaphragm materials: PTFE and 316L SS for most pressure control ranges
  • Bottom mounting
  • Low torque minimizes stem wear
  • Nonventing
  • Cartridge poppet assembly in LRSH4 for ease of service Panel mounting - no disassembly required 
  • Maximum Inlet Pressure:
    • LRS - psig: 507 (bar: 35, kPa: 3,496)
    • LRSH - psig: 5,800 (bar: 400, kPa: 39,990) 
  • Maximum Outlet Pressure: psig: 290 (bar: 20, kPa: 1,999)
  • Sensing Type: Diaphragm
  • Temperature Range: -20 to 80°C (-4 to 176°F)
  • Flow Coefficient: 0.10 - 0.73 Cv
  • Connections:
    • Inlet/Outlet: 1/2" NPT
    • Gauge: 1/4" NPT
    • Vent: 1/8" NPT 
  • Materials of Construction:
    • Poppet: 316L Stainless Steel
    • Body: 316L Stainless Steel
    • Seal: Fluorocarbon FKM, Nitrile, EPDM
    • Diaphragm: PTFE, 316L Stainless Steel
    • O-Ring: EPDM, FKM, FFKM
    • Seat: 316L Stainless Steel, PCTFE, PEEK

1 - 12 of 4,032 Part Numbers
LRSHN4-02-1-EM
LRSHN4-02-1-EM
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - Standard
  • Filter - Standard
  • Agency Approvals - No NACE Approval
  • Vent - Non-Venting
  • Special Cleaning - Not Required
LRSHN4-02-1-EM-EF
LRSHN4-02-1-EM-EF
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Standard
  • Agency Approvals - No NACE Approval
  • Vent - Non-Venting
  • Special Cleaning - Not Required
LRSHN4-02-1-EM-EF-F
LRSHN4-02-1-EM-EF-F
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - No NACE Approval
  • Vent - Non-Venting
  • Special Cleaning - Not Required
LRSHN4-02-1-EM-EF-F-G93
LRSHN4-02-1-EM-EF-F-G93
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - No NACE Approval
  • Vent - Non-Venting
  • Special Cleaning - ASTM G93 Level C-Cleaned
LRSHN4-02-1-EM-EF-F-N
LRSHN4-02-1-EM-EF-F-N
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - NACE MR017, ISO 15156
  • Vent - Non-Venting
  • Special Cleaning - Not Required
LRSHN4-02-1-EM-EF-F-N-G93
LRSHN4-02-1-EM-EF-F-N-G93
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - NACE MR017, ISO 15156
  • Vent - Non-Venting
  • Special Cleaning - ASTM G93 Level C-Cleaned
LRSHN4-02-1-EM-EF-F-N-S
LRSHN4-02-1-EM-EF-F-N-S
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - NACE MR017, ISO 15156
  • Vent - Self-Venting
  • Special Cleaning - Not Required
LRSHN4-02-1-EM-EF-F-N-S-G93
LRSHN4-02-1-EM-EF-F-N-S-G93
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - NACE MR017, ISO 15156
  • Vent - Self-Venting
  • Special Cleaning - ASTM G93 Level C-Cleaned
LRSHN4-02-1-EM-EF-F-S
LRSHN4-02-1-EM-EF-F-S
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - No NACE Approval
  • Vent - Self-Venting
  • Special Cleaning - Not Required
LRSHN4-02-1-EM-EF-F-S-G93
LRSHN4-02-1-EM-EF-F-S-G93
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Filter, 25 µm
  • Agency Approvals - No NACE Approval
  • Vent - Self-Venting
  • Special Cleaning - ASTM G93 Level C-Cleaned
LRSHN4-02-1-EM-EF-G93
LRSHN4-02-1-EM-EF-G93
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Standard
  • Agency Approvals - No NACE Approval
  • Vent - Non-Venting
  • Special Cleaning - ASTM G93 Level C-Cleaned
LRSHN4-02-1-EM-EF-N
LRSHN4-02-1-EM-EF-N
  • Base Model - LRSH
  • Pressure Range - psig: 0 to 43 (bar: 0 to 3, kPa: 0 to 296.5)
  • Seal Material - EPDM
  • Diaphragm - 316L Stainless Steel
  • Feedback - External Feedback
  • Filter - Standard
  • Agency Approvals - NACE MR017, ISO 15156
  • Vent - Non-Venting
  • Special Cleaning - Not Required
1 - 12 of 4,032 Part Numbers

View_Details

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

Feedback

  • External Feedback
  • None

Filter

  • Filter, 25 μm
  • No Filter

Flow Rate

  • 0.10 Cv
  • 0.73 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
  • 1/8” NPT Female

O-Ring Material

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

Poppet Material

  • 316L 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
  • PCTFE
  • PEEK

Special Cleaning & Packaging

  • ASTM G93 Level C-Cleaned
  • Not Required

Supply Pressure - Maximum

  • bar: 35 to 400
  • kPa: 3,495 to 39,989
  • psig: 507 to 5,800

Vent

  • None
  • Self-Venting

Documentation

Data Sheets

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