Primary fluid systems ECO-25, Инструкция по эксплуатации

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Introduction
The following instructions are to provide information on the Installation, operation and maintenance
of ECO Valve, diaphragm style valves, manufactured by Primary Fluid Systems Inc. The valves are
designed to help improve the performance and safe operation of most positive displacement
pumps.
Various materials of construction are available dependent on the requirements of the application
and the type of fluids being transferred.
The valve(s) are factory set at 50 PSIG with a field adjustment range of 7-150 PSIG. Other factory
set pressure ranges (within the range of the valve) is available upon request.
Features of ECO Valve:
•
PVC, PP, CPVC (Corzan), PVDF and 316L S/S wetted construction
•
PTFE laminated to EPDM backed diaphragm standard
•
Optional Viton or EPDM wetted diaphragm materials
•
Only one elastomer is present in the wetted end
•
Turn down handle limits pressure to 150 PSIG
•
Locking adjustable pressure screw
•
Color-coded caps indicate size at a glance
•
Built-in gauge port on both sides of valve body (pre-drilled & threaded optional)
•
Specially designed spring provides consistent pressure adjustments through the range (7-
150 PSIG)
•
Eco valve is available in several configurations to meet your needs, such as threaded,
socket, flanged, union in DIN, BSPT and American Standard
•
Built-in downstream manual air release, for ease of pump priming
•
Built-in anti-siphon
Back Pressure Valve/Anti-siphon:
Diaphragm Back Pressure Valves serve two primary functions. The first is to provide a constant
discharge pressure on the pump, which improves the performance, efficiency and consistency of
the delivered volume. Secondly, the valve performs as an anti-siphon mechanism against positive
or negative pressures in the downstream line. The valve is designed to allow for the venting of air
into the downstream pipeline. This provides for easier priming of metering pumps that function
under a suction lift. This is accomplished by a simple adjustment of the handle.
The valve comes complete with a gauge port located on both sides of the valve body; the ports are
normally not drilled or tapped for a gauge connection.
(See gauge installation instructions on
page 5)
Caution:
The gauge port is solely for the installation of the gauge and must not be used for the
bleeding or venting of the system. Improper operation of the valve and/or hazardous
consequences could result
. (See gauge installation instructions)