Swagelok, General-Purpose Spring-Loaded Back-Pressure Regulators, BS(H)4, 6, 8
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BS (H) 4, 6, 8 Series Piston Sensing 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 BSH series regulators are high-pressure versions of the BS series regulators, and the LBS series are low-pressure, high-accuracy versions of the BS series regulators.
Features
  • Threaded vent to monitor seal integrity
  • Piston sensing
  • Maximum Intlet Pressure:
    • BS - psig: 1,015 (bar: 70, kPa: 6,998)
    • BSH - psig: 5,800 (bar: 400, kPa: 39,990)
  • Maximum Outlet Pressure: psig: 0 to 5,220 (bar: 0 to 360, kPa: 0 to 35,990)
  • Sensing: Piston
  • Temperature Range: -20 to 80°C (-4 to 176°F)
  • Flow Coefficient: 1.84, 1.94, 2.07, 0.49 Cv
  • Connections:
    • Intet/Outlet: 1/2, 3/4, 1" (DN15, 20, 25) NPT, ISO/BSP Parallel Thread, ASME or EN Flange
    • Gauge: 1/4" NPT
    • Vent: 1/8" ISO/BSP Parallel Thread
  • Materials of Construction:
    • Poppet: 431 Stainless Steel
    • Body: 316L Stainless Steel
    • Seal: Fluorocarbon FKM, Nitrile, EPDM
    • O-Rings: Fluorocarbon, Nitrile, EPDM
    • Piston: 316L Stainless Steel

Specifications

Brand

Actuator Type

  • Anti-Tamper Cover
  • Knob

Ambient Temperature Range

  • -20° to 80° C (-4° to 176° F)

BSP Connection

  • 1" BSPP Female (ISO)
  • 1/2" BSPP Female - ISO
  • 3/4" BSPP Female - ISO

Enclosure, Body Material

  • 316L Stainless Steel

Flange Size - 1” (DN 25)

  • 1" (DN 25) - 150#
  • 1" (DN 25) - 1500#
  • 1" (DN 25) - 2500#
  • 1" (DN 25) - 300#
  • 1" (DN 25) - 600#
  • 1" (DN 25) - PN 16
  • 1" (DN 25) - PN 40

Flange Size - 1/2” (DN 15)

  • 1/2" (DN 15) - 150#
  • 1/2" (DN 15) - 1500#
  • 1/2" (DN 15) - 2500#
  • 1/2" (DN 15) - 300#
  • 1/2" (DN 15) - 600#
  • 1/2" (DN 15) - PN 16
  • 1/2" (DN 15) - PN 40

Flange Size - 3/4” (DN 20)

  • 3/4" (DN 20) - 150#
  • 3/4" (DN 20) - 1500#
  • 3/4" (DN 20) - 2500#
  • 3/4" (DN 20) - 300#
  • 3/4" (DN 20) - 600#
  • 3/4" (DN 20) - PN 16
  • 3/4" (DN 20) - PN 40

Flange Type

  • Raised Face Smooth
  • RTJ - Ring Typical Joint

Flow Rate

  • 0.49 Cv
  • 1.84 Cv
  • 1.95 Cv
  • 2.07 Cv

Media

  • Gas
  • Liquids & Gases

Mounting

  • Panel Mount

NACE & NIST

  • NACE MR-0175, ISO 15156

NPT Connection

  • 1" NPT Female
  • 1/2" NPT Female
  • 3/4" NPT Female

O-Ring Material

  • Ethylene Propylene (EPR)
  • FKM
  • Nitrile

Piston Material

  • 316L Stainless Steel

Poppet Material

  • 431 Stainless Steel

Pressure Range

  • bar: 0 to 360
  • kPa: 0 to 35,990
  • psig: 0 to 5,220

Seat / Seal Material

  • 316 Stainless Steel
  • EPDM
  • Fluorocarbon (FKM)
  • Nitrile
  • PCTFE

Special Cleaning & Packaging

  • ASTM G93 Level C-Cleaned
  • Not Required

Supply Pressure - Maximum

  • bar: 70 to 400
  • kPa: 6,998 to 39,989
  • psig: 1,015 to 5,800

Vent

  • Threaded

Documentation

Data Sheets

Catalogs

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