buse scientific, industrial and specialty gases and mixtures

Regulators – Ultra High Purity

ultra high purity regulators

The 400 series of regulators can be used in several different areas of application depending upon your requirements, with both single and dual stage regulator options, brass, chrome plated brass or stainless steel bar stock bodies, brass or chrome plated bonnets; but all with stainless steel diaphragms.

Below you can find links to the various specification sheets, with key attributes listed:

402 Regulator as an Example

Features:

  • Metal-to-Metal Diaphragm Seal – No possibility of gas contamination
  • Capsule® Seat – Increased serviceability and life
  • Brass Barstock Body – Smooth surface finish
  • Front Panel-Mountable – Easy installation
  • 10 Micron Filtration in Both Stages – Fail-safe seat performance
  • Pressure Ranges 0-15 to 0-250 PSIG – Broad range of applications

402 Regulator as an Example

  • Pressure Ranges 0-15 to 0-250 PSIG – Broad range of applications
  • Pipe Away Relief Valve – Safely vents exhaust gases
  • Material:
  • Body – Brass barstock
  • Bonnet – Brass barstock
  • Seat – PTFE, PCTFE with 4500 PSIG inlet option
  • Filter – 10 micron sintered bronze
  • Diaphragm – 316L stainless steel
  • Internal Seals – PTFE
  • Specification:
  • Maximum Inlet Pressure – 3000 PSIG (210 BAR), 4500 PSIG (310 BAR) optional
  • Temperature Range – -40°F to 140°F (-40°C to 60°C)
  • Gauges – 2″ diameter brass
  • Ports – 1/4” FPT
  • Helium Leak Integrity – 1 x 10-9 scc/sec
  • Cv – 0.1 Weight (402 2331-580) – 3.99 lbs. (1.81 kg)

Key Features – Single Stage, Chrome Plated Brass Barstock Body, Six Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control, control of cryogenic gases and EPA protocol standards.

401 Series Regulator with Flow Curve

Key Features – Single Stage, Brass Barstock Body, Six Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control, control of cryogenic gases and EPA protocol standards.

402 Series Regulator with Flow Curve

Key Features – Single Stage, Brass Barstock Body, Four Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control and control of cryogenic gases.

405 Series Regulator with Flow Curve

Key Features – Dual Stage, Chrome Plated Brass Barstock Body, Six Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – EPA protocol standards, gas and liquid chromatography, high purity carrier gases, zero / span / calibration gases and high purity chamber pressurisation.

411 Series Regulator with Flow Curve

Key Features – Dual Stage, Brass Barstock Body, Six Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – EPA protocol standards, gas and liquid chromatography, high purity carrier gases, zero / span / calibration gases and high purity chamber pressurisation.

412 Series Regulator with Flow Curve

Key Features – Single Stage, 316L Stainless Steel Barstock Body, Six Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Gas and liquid chromatography, Ultra-high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control, control of cryogenic gases and corrosive gases.

422 Series Regulator with Flow Curve

Key Features – Single Stage, 316L Stainless Steel Barstock Body, Four Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, Ultra-high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control, control of cryogenic gases and corrosive gases.

425 Series Regulator with Flow Curve

Key Features – Low dead volume, 316L Stainless Steel Barstock Body, Two Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, Ultra-high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control, control of cryogenic gases and corrosive gases.

426 Series Regulator with Flow Curve

Key Features – Dual Stage, 316L Stainless Steel Barstock Body, Six Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – EPA protocol standards, gas and liquid chromatography, high purity chamber pressurisation, Zero / span / calibration gases, Ultra-high purity chamber pressurisation and corrosive gases.

432 Series Regulator with Flow Curve

Key Features – Single Stage, Rear Entry, Brass Barstock Body, Five Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control and control of cryogenic gases.

435 Series Regulator with Flow Curve

Key Features – Single Stage, Rear Entry, 316L Stainless Steel Barstock Body, Five Port Configuration and 316L Stainless Steel Diaphragm.

Typical Applications – Bulk gas distribution systems, gas and liquid chromatography, Ultra-high purity carrier gases, zero / span / calibration gases, high purity chamber pressurisation, liquefied hydrocarbon gas control, control of cryogenic gases and Corrosive service.

445 Series Regulator with Flow Curve

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