In
addition to a full product-line of Spra-Gard®, Econo-Gard®
and Metal Safety Shields, RAMCO® produces shields that provide
protection under special plant conditions:
Expando-Gard®
Shields
Metal
Drain-Gard® Shields
Lined
Drain-Gard® Shields
Vue-Drain-Gard®
Shields
PPL
(Vue) Drain-Gard® Shields
Vue-Gard®
Shields for Flow Indicators
PPL
(Vue)-Gard® Shields for Flow Indicators
Expando-Gard®
Safety Shields
The most frequently
ordered Expando-Gard® Shield is fabricated of TFE, followed
by the “See-Thru” Vue-Gard®, the PPL (Vue)-Gard®,
and then, PPL. These are the only materials in which Expando-Gard®
Shields are manufactured.
Expansion joints
are important integral parts of piping systems but they have a tendency
to leak and to create sprayouts with disquieting frequency. These
joints may have convolutions of rubber, plastic or stainless steel,
and Expando-Gard® Shields are suitable for all three types,
regardless of manufacturer.
Effective shielding
of an expansion joint must envelop the piping connection and must,
at the same time, have the ability to retain its position firmly,
even when exposed to intense pressure, as in the case of a surging
leak.
A flange has
a fixed configuration and accordingly, to design a shield with a
tight fit is relatively simple. In contrast, an expansion joint
expands, contracts and misaligns. The RAMCO® Expando-Gard®
Shield provides for these dimensional changes without inhibiting
the motion of this device. This innovative shield wraps around and
fits snuggly over the joint, providing the needed protection in
the event of a hazardous chemical leak.
An early leak
can be detected by the indicating patch on the Expando-Gard®
Shield (except for the “see-thru” Shields). This patch
changes color immediately on exposure to an acid or base. As with
all RAMCO® Shields, the materials that are used in the manufacture
of the Expando-Gard® Shields are non-flammable and non-combustible,
including the tie-cords.
Expando-Gard®
Shields may be produced for any pipe size or may be customized to
any non-standard specification. To fabricate Expando-Gard® Shields
of any RAMCO® material, the following information is required:
Face-to-Face
of the expansion joint (nominal length) Pipe size Number
of convolutions Number
of limit bolts (control rods)
These unique,
specialized shields are installed with ease, and just as with flange
safety shields, no tools are required.
This RAMCO®
Safety Shield has been recognized as contributing significantly
to the advancement of safety in chemical processing. It was given
the National John C. Vaaler Award as “a major contribution
toward more efficient and effective operation of plants in the chemical
processing industries”.