Compressed
air is an important utility for any serious home or
commercial workshop. Prevost air couplers (both
standard and safety models) make it easy to connect
your hoses and tools to the air distribution system
in your shop.
Standard Couplers - these
"push-to-connect" couplers are ideal for
connecting your pneumatic tools to the air hose. A
simple push of the button on the side of the coupler
releases the tool making this an easy
"one-hand" operation.
Use
"standard couplers" for all impact tools
They
can also be used for coupling multiple hoses or
connecting your hose to the air source (compressor or
wall drop) but care must be taken when disconnecting
the hose...always hold the in the hose when
disconnecting to prevent hose-whip. Prevost safety
couplers are better suited for these
applications.
Safety Couplers - these are the couplers
that brought the Prevost line to my attention in 1999
after a slight mishap with an air hose and a BMW.
Prevost safety couplers are a part of the air
distribution systems of any shop I design as they
eliminate the chance of personal or property damage
due to "hose-whip" in air systems (up to
175psi).
This
is a simple but effective 2-stage coupler. The first
push of the button on the side of the coupler bleeds
the air from the load (the hose and air tool). The
second push releases the hose from the coupler.
Prevost safety couplers should be used at all wall
drops throughout the shop or at the compressor itself
if you do not have a plumbed distribution system (eg,
portable compressors).
Safety coupler (black) and
standard coupler (blue)
Technical Features
Non-Scratch - cylindrical
design of high impact composite material with
no prominent edges....minimizes the chance of
scratching finished surfaces.
Lightweight - single stage
connectors typically weigh less than 50gr
Fully Automatic - push
button release system for easy 1-hand
operation
Leakage Free - o-ring
design prevents air leakage when connected or
disconnected
Safety - cylindrical
design with integrated push button prevents
accidental disconnection. The circuit cannot
be opened without inserting the plug.
Flow - approx 29cfm @
90psi (1/4" flow body) and 71cfm @ 90psi
(3/8" flow body)
Nitrile seals for leak
free connections
Stainless Steel spring
Body Size - I stock Prevost
standard and safety couplers in both 1/4" and
3/8" flow body sizes. The 1/4" flow size is
recommended for the ends of your air hoses for
connection to your tools. The 3/8" flow sizes
should be used for all wall drops and connections to
your compressor. Larger air tools (media blast
cabinets, tire machines, irrigation system blowouts,
etc) should be connected through larger id hoses with
3/8" body couplers.
Profile - There are at least
half a dozen profiles of air fittings and couplers
but the most common for multi-purpose applications
are the Industrial Interchange, Truflate, ARO 210 and
the new Euro High flow profile.
Industrial
Interchange couplers are available in 1/4" and
3/8" flow body sizes with a variety thread sizes
(Male and female NPT, 1/4", 3/8" and
1/2"). I also stock the male and female plugs
that thread into your tools and onto your hoses for
connection to these couplers.
ARO
210 "long-nose" couplers are in both
standard and safety styles but only in 1/4" flow
body size. Truflate and High Flow profiles are also
stocked in 1/4" flow sizes with 1/4 or 3/8 NPT
male/female connections.
Appearance - the composite bodies
have a smooth attractive appearance. Standard bodies
are either blue (1/4" flow) or grey
(3/8" flow). All safety couplers have a black
composite body. There is a tendency for minor
cosmetic pitting of the base of these
couplers....this has absolutely no effect on function
or performance.
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