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RWHC - SSP - Download PDF Rail Web Heaters Application: Switch Rail Snow and Ice Melting RWHC heaters are an integral part of RHPS’s transportation snow and ice melting systems. Designed specifically for rail switch heating, RWHC heaters are designed for ease of installation and operation. The RWHC heaters have a flat, flexible heating surface that conforms to the web of the rail, to provide maximum heat transfer from the heater to the rail. This allows RWHC heaters to operate at a lower watt density then traditional calrods thus increasing the heater’s life span and lowering the operating costs. Design. . . RWHC heaters are manufactured to meet the specific user’s needs based on the available power supply. A typical design will include a review of the voltage available, rail profile and switch layout to determine the power requirements and mounting limitations for the specific application. The heaters are designed to operate at a nominal 9 watts per square inch of heater contact surface at the specified voltage. . Products sub1 2_files/RWHC%20cut%20sheet.pdfshapeimage_9_link_0
PRODUCT SPECIFICATIONS Installation. . . RWHC heaters are rugged, yet flexible enough to adapt to the requirements of rail switch installations. RWHC’s are fastened firmly to the rail with spring clips using a lever action clip tool. The electrical connections are simple AMP “quick-disconnect” connectors with metal lock ring, making heater-to-heater and heater-to-power connections fast, easy and watertight. A Non-Hardening Heat Transfer Compound is also used when installing RWHC heaters to enhance thermal conductivity between the rail and the heater providing optimum performance and heater life. Construction. . . The RWHC heater is manufactured to withstand the hostile atmosphere of railway switches. It is composed of a parallel path, heating element that is encapsulated between layers of high temperature fiberglass reinforced silicone rubber. A layer of high temperature silicone foam insulation to promote maximum rail heating efficiency backs the encapsulated heating element. These components are then housed in a durable 304 stainless steel assembly. These assemblies are available in 3” wide (tall) by 8, 10, 12, 18 & 24” inch long models.
Rail Heating Products & Services               108 Linda Dr., San Marcos TX 78666               Telephone (512) 396-4328