Model NH-4 Fluid Heater High-pressure fluid heater for improved painting efficiency and quality. ■ Simple design — adjustable thermostat makes temperature setting simple and a read-out thermometer provides constant monitoring of fluid temperature. ■ Increased capacity — multiple heaters can be installed in series or parallel configuration for increased heating/ flow capacity. ■ Minimum pressure loss — twin passage NH-4 heater minimizes pressure loss in high-flow/high- viscosity applications. ■ Safe operation — NH-4 heater is explosion-proof and includes a high-temperature limiter for maximum operating safety. No external contactors are required. ■ Easy field repair — cartridge heater, adjustable thermostat and high-temperature limiter can be replaced in minutes without special tools. ■ Uniform, efficient heating — high-fluid velocity and the low-watt density of the heat transfer surface provide consistent, efficient heating. ■ Corrosion resistance — stainless-steel NH-4 heaters are available for corrosive or sanitary applications. ■ Safety agency approvals - FM, CSA, SEV, RMS, BAS E E FA, Nordson heated airless and air spray systems utilize the single-passage Nordson model NH-4 fluid heater to reduce the viscosity of coating materials and increase operating efficiency — without adding solvents. The NH-4 heater is also available in twin passage models for high-viscosity coatings, high-flow applications, or stainless-steel models for corrosive materials. It can be wall mounted or dolly mounted using the integral mounting bracket. Benefits of Heated Coatings ■ Increased film build per pass for improved part coverage. Improved finish quality by minimizing blushing, orange peel, pinholing and dry spray. ■ Reduced VOC emissions due to lower solvent usage. ■ Reduced component wear and maintenance costs due to lower operating air and fluid pressures.

Model NH-4 Fluid Heater The NH-4 heater is an electrically operated, explosion-proof, high-pressure fluid heater. It consists of an electrical enclosure and a high-pressure fluid passage body. External electrical contactors are not necessary with the NH-4 heater. A cartridge heater and adjustable thermostat provide accurate fluid temperature control, and a high-temperature limiter ensures maximum operating safety. Technical Specifications Twin Passage Model Designed for high-flow applications, high-solids coatings and other high-viscosity materials, the twin passage model combines the high-efficiency...