Pump-solutions-group Neptune Pulsation Dampeners PD36PV,PD36SS,PD85SS Manuale Utente Scaricare il pdf

Pulsation Dampeners

BULLETIN PD-08

Pulsation Dampeners

Purpose

Neptune dampeners are installed on the

discharge side of positive displacement pumps

to remove the pulsating flow caused by the start

and stop action of the pump. Dampeners ensure

a smooth and continuous flow, eliminate pipe

vibration and protect in-line instrumentation.

Dampeners may also be installed at the pump inlet

as an inlet stabilizer to improve the NPSH condition

of the pump by reducing the acceleration pressure

losses due to the opening and closing of the inlet

ball valve.

Features

• Lightweight, compact design

• Equipped with pressure gauge

and charging valve

• Easy in-line maintenance

• Pressure ratings to 1000 psi

with 4:1 safety margin

• Extensive range of plastics,

metals and elastomers

How They Work

A pressure chamber is divided by an elastomeric bladder. The lower portion of the

chamber is filled with the pumped liquid, the upper portion of the chamber contains

an air cushion. The air cushion is pre-charged to a pressure appropriate for the

operating condition. The energy from each pump discharge stroke displaces the

bladder into the air cushion allowing the dampener to absorb the energy. The air

cushion and bladder force liquid out of the bladder during the pump suction stroke.

MODEL

PD36SS

MODEL

PD85SS

MODEL

PD36PV

1 2

Sommario

Pagina 1 - Pulsation Dampeners

Pulsation DampenersBULLETIN PD-08Pulsation DampenersPurposeNeptune dampeners are installed on thedischarge side of positive displacement pumpsto remov

Pagina 2 - Pulsation Dampener Selection

DEGREE OF DAMPENINGNEPTUNE PUMP MODEL 95% 90%481 / 500 / 501 / 510 / 515 / 517 4 cu. inch 4 cu. inch520 / 522 / 525 / 527 / 7000 / 7001 10 cu. inch 4

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Pump-solutions-group Neptune Pulsation Dampeners PD36PV,PD36SS,PD85SS Manuale Utente

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