Products
RWH - SSP - Download PDF
Rail Web Heaters
Application: Switch Rail Snow and Ice Melting
RWH heaters are an integral part of RHPS’s
transportation snow and ice melting systems. Designed
specifically for rail switch heating, RWH heaters
withstand the abuse encountered during installation and
operation.
The RWH 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. . .
RWH 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.
PRODUCT SPECIFICATIONS
Installation. . .
RWH heaters are rugged, yet flexible enough to adapt to
the requirements of rail switch installations. RWH’s are
fastened firmly to the rail with easy to install spring
clips. The standard electrical connections are made with
simple crimp connectors, isolated and sealed with heat
shrink materials 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 RWH 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 and 24 inch long
models.
Rail Heating Products & Services 108 Linda Dr., San Marcos TX 78666 Telephone (512) 396-4328