Armstrong 4382 Series Podręcznik - Strona 4

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Series 4382
Designed to incorporate two Armstrong standard Series 4380 close coupled Vertical In-Line pumps in a single casing. All existing 4380
series catalogue information and performance curves may be used, or doubled in the case of parallel operation, for the Series 4382
Vertical In-Line pump.
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1
Motor: Industry standard, designed for in-line service.
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Flush and vent connection: - Removes entrained air ensuring
lubricating liquid is at the seal faces at all times. Piped to pump
suction.
3
Mechanical seal: - Inside type with Silicon Carbide seat,
serviceable without disturbing the pipe connections.
4
Impeller: Dynamically balanced to ensure smooth vibration-free
operation.
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Volute: Radially split, with equal suction and discharge flange
sizes. Separate tapped openings for gauge, flush and drain
connections.
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Gasket: Confined casing gasket to meet stringent industrial
temperature and pressure applications.
7
Flapper valve: Hydraulically isolates casings preventing
recirculation when only one pump operates.
8
Isolation valves: Allow one unit to be isolated and removed for
service while the second unit remains in operation.
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