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Standard Features:
  • Built by an ASME Certificate holder in accordance with ASME BPVC Section I - Rules for Construction of Power Boilers ("ASME BPVC Section I"). They also comply with the requirements outlined in The National Board Synopsis of Boiler and Pressure Vessel Laws, Rules and Regulations (NB-370) RULES FOR CONSTRUCTION AND STAMPING section, which for many jurisdictions include but are not limited to ASME BPVC Section I, ASME CSD-1, ASME B31.1, and REGISTRATION WITH THE NATIONAL BOARD.
  • High Pressure Safety Reset
  • UL Listed and labeled under UL 834
  • Dual Pressure Controls (UL 353)
  • Low Level Cut-Off (LLCO) (UL 353)
  • Safety Relief Valve possessing the ASME V Mark (these valves are built by a manufacturer holding a valid ASME Certificate of Authorization)
  • Motorized Automatic Flush and Drain (MAFD)
  • Single Service Transformer
Recommended Options (Non-Standard):
  • Spare Parts Package
  • 5-Micron Water Filter
Click here to read the NB-370 synopsis.

Unit of Measure

Specifications

Brands

 N/A Electro-Steam™

Electrical Power Rating

 N/A 150 kW (75 kW per Box) (2 Boxes)
Alternating Current (AC) Voltage1 N/A 208 V230 V360 V400 V480 V600 V

Phase

 N/A 3

Frequency

 N/A 50 Hz60 Hz

Boiler Horse Power

 N/A 15 bhp (7.5 bhp per Boiler)
Steam Capacity2 N/A 517.5 lb/hr234.0 kg/hr
Average Water Consumption3 N/A 62.01 gal/hr234.0 L/hr
Gross British Thermal Units (BTU) Output4 N/A 502,080 Btu/hr

Maximum Boiler Pressure

 N/A 100 psi

Operating Pressure

 N/A 0 to 80 psi

Note for Operating Pressure

 N/A Factory Set at 80 psi

Maximum Boiler Capacity

 N/A 53 gal

Note for Maximum Boiler Capacity

 N/A 26.5 Gallons per Boiler

Boiler Fill Capacity

 N/A 44 gal

Note for Boiler Fill Capacity

 N/A 22.0 Gallons per Boiler
Boiler Material 5 N/A Carbon Steel

Cabinet Material

 N/A 304 Stainless Steel
Plumbing Material6 N/A Brass (Schedule 40) Carbon Steel (Schedule 40)

Industry Standards

 N/A American Society of Mechanical Engineers (ASME) - Boiler and Pressure Vessel Code American Society of Mechanical Engineers (ASME) - CSD-1 Canadian Underwriters Laboratories (cUL) Underwriters Laboratories (UL)

Amperage

Amperage at 208 Volt (V) Alternating Current (AC) Voltage (3Ø Phase)

 N/A 416.4 A (208.2 A per Box) (2 Boxes)

Amperage at 230 Volt (V) Alternating Current (AC) Voltage (3Ø Phase)

 N/A 392.9 A (196.5 A per Box) (2 Boxes)

Amperage at 360 Volt (V) Alternating Current (AC) Voltage (3Ø Phase)

 N/A 253.6 A (126.8 A per Box) (2 Boxes)

Amperage at 400 Volt (V) Alternating Current (AC) Voltage (3Ø Phase)

 N/A 226.5 A (113.2 A per Box) (2 Boxes)

Amperage at 480 Volt (V) Alternating Current (AC) Voltage (3Ø Phase)

 N/A 180.4 A (90.21 A per Box) (2 Boxes)

Amperage at 600 Volt (V) Alternating Current (AC) Voltage (3Ø Phase)

 N/A 144.3 A (72.17 A per Box) (2 Boxes)

Dimensions

Length

 N/A 64 in

Width

 N/A 38 in

Height

 N/A 63 in

Minimum Clearance

Total Length

 N/A 125 in

Total Width

 N/A 60 in

Total Height

 N/A 70 in

Plumbing Connection Sizes

Water Inlet (Shared)

 N/A 1/2" NPT (Female) - Y-Strainer, Brass

Steam Outlet (Shared)

 N/A 6" Flange (150 psi, 4-Hole) - 2-1/2" pipe connection

Safety Valves (x2)(Separate)

 N/A 1-1/4" NPT (Male) (x2) - Two Black Pipes routed to the floor; one from each Safety Valve.

Drain + MAFD Option (Shared)

 N/A 1" NPT (Female) - Elbow, Brass

Steam Trap (Not Included)

 N/A 3/4" NPT (Female) - Threaded connection on the bottom of the 2-1/2" shared Steam Outlet pipe.

Included Options

Motorized Automatic Flush and Drain (MAFD)

 N/A Two of these options are supplied standard in all double stack steam generators; the motorized drain valve opens for three (3) minutes during every start-up. As old water is drained out, fresh water is cycled in. This drain valve will not open if the pressure in the steam generator exceeds 5 psi. The electric heaters are locked out during flush cycle.
Single Service Transformer7 N/A Two of these options are supplied standard in all double stack steam generators; the Transformer steps down the primary high voltage supplied for the heaters, in order to provide 120VAC 1Ø for the controls; with this option, only the two (2) primary high voltage supplies are required.
Manual Low Water Reset8 N/A Manual Low Water Reset trips if the electric heaters shut-off because of a low water condition. Reset must be manually pressed to resume steam production.

Water Feed Booster Pump

 N/A Two Water Feed Booster Pumps are supplied standard in all high-pressure double stack steam generators. Each Water Feed Booster Pump increases the incoming water pressure to overcome the operating pressure of each steam generator. Each Booster Pump requires a 5-150 psi water supply with a minimum flow rate of 3 gpm (At least 6 gpm is required for both)

Options

Spare Parts Package Includes

 N/A
  • 18-Month Warranty (12-Month Standard)
  • (2) Electric Heaters & (2) Heater Gaskets
  • (2) Sight Glass Tubes & (4) Washers
  • (1) Pressure Control
  • (1) Contactor

5-Micron Water Filter

 N/A 2-stage, 5-micron water filter installed into incoming water line to reduce sediment, dirt, rust, chlorine, and even odor from incoming water supply.
  • 1 Electro-Steam™ Double Stack electric steam generators are two (2) electric steam boilers stacked inside one (1) cabinet. They are plumbed together, but not wired together. Double Stack steam generators require two (2) or four (4) customer specific high voltage feeds, one (1) per Electrical Box - 150 kW models have two (2) Electrical Boxes to feed and 200 to 480 kW models have four (4).
  • 2 Calculated values are based off of a 212ºF boiler feed-water temperature. However, it must not exceed 140ºF. Temperatures that range between 60ºF and 140ºF, are approximately 80% to 90% of the calculated values shown.
  • 3 Calculated values are based off of a 212ºF boiler feed-water temperature. However, it must not exceed 140ºF. Temperatures that range between 60ºF and 140ºF, are approximately 80% to 90% of the calculated values shown.
  • 4 Calculated values are based off of a 212ºF boiler feed-water temperature. However, it must not exceed 140ºF. Temperatures that range between 60ºF and 140ºF, are approximately 80% to 90% of the calculated values shown.
  • 5 Wetted Surfaces.
  • 6 Wetted Surfaces.
  • 7 Two (2) Single Service Transformer options are included with each double stack electric steam generator. These options provide 120 VAC 1Ø, 50/60 Hz for each boiler's controls.
  • 8 A Manual Low Water Reset Button is supplied standard with every steam generator, but it is disabled. If this Reset Button is required as per your local boiler codes, simply plug the two attached wires into the PC-Board terminals labeled "Reset"