ENCORE
®
700 METERING PUMP
Combination of a linear scale (0 to 100%) on the stroke control housing
and a circular scale (0 to 10) provides an accurate micrometer-type set-
ting of the stroke, with a resolution of 0.25%.
Liquid Ends
NOTE: Refer to the List of Contents for Section 5 - Illustrations to
identify the applicable drawings.
The Encore® 700 metering pump offers six different sizes of liquid ends to
provideawiderangeofcapacities andpressures. Thesimplexarrangement
has a capacity up to 317 gph and pressure up to 175 psi. Teflon-faced dia-
phragms are used as pumping diaphragms to provide metering accuracy
as well as chemical compatibility. Six sizes of Teflon-faced diaphragms are
available: 1-3/8", 2", 3", 4", 5", and 6-1/2". A variable eccentric mechanism
is mechanically connected to the Teflon-faced diaphragm by a crosshead.
A secondary seal mounted on the crosshead isolates the gearbox from the
liquid end. Table 1.3 (in Section 1) provides further details on capacity
and pressure capabilities for each liquid end. Cartridge valves are used
on all the liquid ends to provide ease of service and field maintenance.
Threaded valves are available on 1-3/8" and 2" heads only. Clear valve
housings assist
in checking the valve performance, providing built-in
sight flow indication (except for the 6-1/2" head).
WT.440.400.001.UA.IM.1012
30
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