Dixon Bayco 3020 Series Instruções de instalação e funcionamento - Página 3
Procurar online ou descarregar pdf Instruções de instalação e funcionamento para Unidade de controlo Dixon Bayco 3020 Series. Dixon Bayco 3020 Series 4 páginas. 2 inch swing check valves
Imprimir páginaSwing check valves are designed to operate to a maximum of 350°F
(176°C) temperature.
DO NOT OPEN INSPECTION CAP WHEN VALVE IS UNDER
PRESSURE!
Swing Check valves need routine inspections.
Swing check valves can fail to operate if not properly maintained.
Frequently check for damage, loose or missing parts.
Swing check valves assure one-way airflow during the off loading or
unloading of product. Swing check valves prevent back flow of
product into the blower or piping system. These safety devices
consist of a simple flapper valve that swings clear of the air stream
during the normal off-loading operation, but will immediately close
when there is an air stoppage or airline pressure reversal. Once
installed, the valves are often ignored. However, they are a crucial
element in the proper operation of the dry bulk air transfer systems
and the protection of expensive blower equipment.
Swing check valve simplicity and historical durability are probably the
reason for inspection complacency. But, swing checks are subject to
temperature extremes and vibration fatigue that can affect wear and
longevity. Wear in particular can result as flapper and hinge
mechanisms vibrate constantly during road travel. Also remember
that blowers raise intake air temperatures by as much as 200°F. That
means if the outside is 100°F, then airline plumbing (including swing
checks) can reach 300°F. High temperatures combined with pulsation
stress from the blower and road travel vibration creates a hostile
working environment that warrants performance inspections on a
regular basis.
There are two basic ways to inspect swing checks: (a) visual/manual,
on the tanker and (b) removed from tanker, on a test stand.
Do not attempt to inspect the valve while in use; this may
result in severe damage or injury.
2" SCV
2" Swing Check Valves
Temperature
Inspection and Maintenance
877.582.3569
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