Model TWBS.EW.H

Model TWBS.EW.H

Model TWBS.EW.H, prepackaged instantaneous electrical water heater, 480 VAC/3 phase/20 KW, fully engineered and tested system with fail-safe features to produce up to 4 gpm (15.1 L) tempered water for eye washes.


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Model TWBS.EW.H Description

Model TWBS.EW.H An on-demand, prepackaged, fully engineered and tested tempering system to provide tempered water instantaneously. System is designed to increase cold water temperature by a minimum of 34° F (19° C) at 4 gpm (15.1 L) flow and 68° F (38° C) at 2.0 gpm (7.5 L); thus it is suitable for single eyewash application. Outlet water temperature is factory set at 80° F (26° C).

  • It is ideal for areas where supply water temperatures fall below 60° F (15° C) while hot water is not present.
  • System consists of an 20 KW electrical instantaneous water heater, a hot shutoff valve, a bypass valve, an in-line 50-micron filter, and an outlet temperature gauge.
  • Maximum inlet pressure: 125 psi. (8.6 bar) Inlet and Outlet: 1/2" IPS.
  • Electrical Supply: 480 VAC, 3-phase, 3 wire and ground. 25 amp electrical supply.
  • For indoor use only.


IAPMO certified to Standards for Electric Heating Appliances (UL 499) and Industrial heating Equipment (CSA C22.2 No. 88-1958 (R2008)).

Buy America Act Information

The vast majority of Haws products qualify under the terms of the act. However, since different purchases often require subtly different responses, Haws recommends that the specific document requesting certification be sent to customer service for a specific answer.

Industry Standards Compliant

Model TWBS.EW.H Components

SP170

Test This Week Tag
SP170 is a green waterproof test card with space for date and initials of inspector. Used to record weekly testing of emergency equipment.
SP502

In-Line Strainer
Model SP502 brass in-line Y water strainer. 1/2" IPS.

Model TWBS.EW.H Options & Accessories

Pricing Info

U.S. List Price: $4900.00  Pricing Terms

Model TWBS.EW.H Downloads

Cleaning & Maintenance

There are no cleaning and maintenance instructions for this model. Please contact Haws' Technical Department at 800-766-5612 for instructions.

Model TWBS.EW.H Sample Specifications

Model TWBS.EW.H on-demand, prepackaged, fully engineered and tested tempering system to provide tempered water instantaneously. System is designed to increase cold water temperature by a minimum of 34° F (19° C) at 4 gpm (15.1 L) flow and 68° F (38° C) at 2.0 gpm (7.5 L); thus it is suitable for single eyewash application. Outlet water temperature is factory set at 80° F (26° C). System consists of a 20 KW electrical instantaneous water heater, a hot shutoff valve, a bypass valve, an in-line 50-micron filter, and an outlet temperature gauge. Maximum inlet pressure: 125 psi (8.6 bar). Inlet and Outlet: 1/2" IPS. Electrical Supply: 480 VAC, 3-phase, 3 wire and ground. 24 Amp per Phase. FOR INDOOR USE ONLY.

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