Electric Steam Generator

Arctic BMT Electric Clean Steam Generator


The Clean steam generator is extensively tested at our factory prior to shipment to ensure a trouble free startup of the generator once it arrives at the purchaser’s facility. Tests include mechanical check out, electrical check out, control system check out, input/output testing, alarm initiation testing, operational check out. A copy of our standard FAT document is provided to the customer for review 6 weeks prior to the start of testing.

Our package can include some or all of the following.


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Design Qualification Ensuring you know your requirements before making the purchase
Product Selection Ensuring we get you the right product at the best price
Installation and Debris Removal Ensuring the installation is complete to our standards and we recycle all packaging material
Calibration / Preventative Maintenance Ensuring the equipment is maintained and/or calibrated as per ISO17025 standards or equivalent (certificate provided after installation)
Installation Qualification Ensuring compliance is met during the installation
Operational Qualification Ensuring the equipment meets all acceptance critera when challenged against the manufacture’s specifications or the Design Qualification
Customized Performance Qualification Ensuring the equipment meets all acceptance criteria when challenged agaist your requirements
Extended Warranty with Preventative Maintenance Ensuring you are always covered no matter what and when equipment failures may occur
Scheduled Qualification Package Ensuring your equipment is continuously monitored and in compliance throughout the life cycle of the equipment
Qualification after Repair (if applicable) Ensuring the equipment stays in compliance after equipment maintenance or failures occur

The BMT Electric Clean Steam Generator is designed to produce up to 250 lbs/hr of Clean steam at up to 45 psig output pressure utilizing approximately 0.5 gpm of feed water at minimum 10 psig higher than the desired output pressure. The Clean Steam Generator is electrically powered using 208V or 480V/3ph/60hz power.

Construction meets or exceeds the requirements or recommendations of:
IMHS – Industrial Moist Heat Sterilization: International Standard 11134:1994
ASME – American Society of Mechanical Engineers
CRN – Canadian Registration Number
UL/CUL – Underwriters Laboratory
CETL – Canadian Testing Laboratories (for conformance to CSA)
NFPA – National Fire Prevention Association
OSHA – Occupational Safety and Health Administration
NPC – National Plumbing Code
NEC – National Electrical Code
NEMA – National Electrical Manufacturers Association

The Clean steam pressure is monitored by a pressure sensor that responds to steam demands by controlling contactors for the steam generator heating element(s). A level switch, simultaneously controlling the feed water supply valve will control the feed water flow. Clean steam pressure will be maintained at ±2 psig of the set point.

At a minimum the feed water should be carbon filtered, chorine free, reverse osmosis or deionized water, with a minimum resistivity of 1 megohm. The generator will produce steam that is equal to or better in quality as the feed water provided to it. If fed with WFI water then the steam quality will be Pure Steam. Please refer to option 2.5 if pyrogen free steam is required.

The Siemens LOGO PLC Controller automatically controls all the Clean steam generator functions. The controller is mounted in a UL508, NEMA 4 panel. Solid state relays are used to energize the heating elements.

The steam generator is built in accordance to ASME pressure vessel codes. The pressure vessel bears the ASME code stamp. Material of construction: 316L stainless steel with a 25 Ra µinch finish.

Feed water piping and valves are constructed with 316L stainless steel, with a 25 Ra µinch finish with sanitary connections. Piping and valves in contact with the product piping are constructed with 316L stainless steel with a 25 Ra µinch finish and constructed in sanitary design.

An automatic valve periodically opens to allow a percentage of the feed water to blow down carrying the impurities out of the steam generator. The percentage of water and the number of times the valve opens is programmable on the steam generator control system.

The exterior of the electric boiler chamber and all hot pipes are covered with chloride-free insulation. The insulation on the heat exchanger is encased within sturdy stainless steel. Exposed hot pipes are insulated to protect maintenance personnel.

The Clean steam generator vessel, piping and control cabinet is secured to a welded 304 stainless steel structural frame.

A safety relief valve is equipped to protect the electric boiler chamber from over-pressure. Safety relief devices are factory preset for the vessel design pressure and are ASME approved and stamped.

CONNECTIONS (to be confirmed on approval drawings)

  • Feed water – ½” Tri-Clamp
  • Clean steam outlet – 2” Tri-Clamp (depending on customer requirements, to be determined during approval drawing process)
  • Electrical – 120V/1ph required for controls; 208V or 480V/3ph power required for heating
  • elements
  • Cooling Water 1/2” NPT
  • Drain Line – 1” Tri-Clamp
  • Safety Relief – 1 ¼” Tri-Clamp (to be piped to a safe location by others
  • Compressed Air – ½” NPT

Estimated Dimensions Each: 60”w x 39”d x 75.5”h
Approximate Weight: 800 lbs


  • Piping and Instrumentation Diagram
  • Installation Drawings
  • Electrical Diagrams
  • Control System Documentation
  • Software Source Code Listing
  • Installation Manual
  • Operational Manual
  • Mechanical Component Parts List
  • Electrical Component Parts List
Accessory Part Number
Allen Bradley Micrologix PLC Control System
Allen Bradley Compact Logix PLC Control System
Feed Water Booster Pump System
Feed Water Degassing System
Steam Separator
Clean steam Conductivity Monitor and Sample System
Feed Water Conductivity Monitoring
Feed water Loop Block and Bleed Assembly
Automatic Drain Valve
2-Pen Recorder
Paperless Video Graphic Recorder
Seismic Restraint Kit
Seismic Calculations