Installation guide

e1mdlCsmFDA-rev0512
www.versamatic.com
5 • Model E1 Metallic Bolted
Air Line
Discharged
Fluid
Discharge
Stroke
Suction
Stroke
Primed
Fluid
Air-OperatedDoubleDiaphragm(AODD)pumpsarepowered
by compressed air, nitrogen or natural gas.
The main directional (air) control valve
①
distributes
compressedairtoanairchamber,exertinguniformpressure
over the inner surface of the diaphragm
②
. At the same time,
theexhaustingair
③
from behind the opposite diaphragm
isdirectedthroughtheairvalveassembly(s)toanexhaust
port
④
.
As inner chamber pressure
(P1)exceedsliquidchamber
pressure
(P2), the rod
⑤
connected diaphragms shift
together creating discharge on one side and suction on the
opposite side. The discharged and primed liquid’s directions
arecontrolledbythecheckvalves(ballorap)
⑥
orientation.
The pump primes as a result of the suction stroke. The
suctionstrokelowersthechamberpressure
(P3) increasing
the chamber volume. This results in a pressure differential
necessary for atmospheric pressure
(P4)topushtheuid
through the suction piping and across the suction side check
valveandintotheouteruidchamber
⑦
.
Suction (side) stroking also initiates the reciprocating
(shifting, stroking or cycling) action of the pump. The suction
diaphragm’s movement is mechanically pulled through its
stroke.Thediaphragm’sinnerplatemakescontactwithan
actuator plunger aligned to shift the pilot signaling valve.
Once actuated, the pilot valve sends a pressure signal to the
opposite end of the main directional air valve, redirecting the
compressed air to the opposite inner chamber.
Principle of Pump Operation
SAFE AIR
EXHAUST
DISPOSAL
AREA
PUMP INSTALLATION AREA
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
MUFFLER
LIQUID
LEVEL
SUCTION
LINE
LIQUID
LEVEL
SUCTION
LINE
MUFFLER
MUFFLER
SUBMERGED ILLUSTRATION
Pumpcanbesubmergedifthepumpmaterialsofconstruction
arecompatiblewiththeliquidbeingpumped.Theairexhaust
must be piped above the liquid level. When the pumped product
sourceisatahigherlevelthanthepump(oodedsuction
condition),pipetheexhausthigherthantheproductsourceto
prevent siphoning spills.
MODEL SPECIFIC
2: INSTAL & OP