moyno 2000 CC, Service Manual

Page: 3 / 18

Section:
MOYNO

2000 PUMPS
Page: 1
-1. INTRODUCTION
lume. The result is a
positive displacement flow.
bly and assembly procedures
ion of rotation
al numbers must be used when
ps is clockwise,
iven end of the pump.
65CDQ3SA1AAAC, as shown on the nameplate in Figure
-1.
PROGRESSING
SERVICE MANUAL
Moyno

2000 CC Pumps
1
1-2. General
The Moyno 2000 pump is a progressing cavity pump. A single
helical rotor rolling eccentrically in the double-threaded helix of
the stator creates the pumping action. In its revolution, the rotor
forms, in conjunction with the stator, a series of sealed cavities
180 degrees apart. As the rotor turns, the cavities progress
from the suction to the discharge. As one cavity diminishes, the
opposing cavity increases at exactly the same rate. Thus, the
um of the two discharges is a constant vo s
pulsationless,
1-3. Scope
This service manual covers the installation and maintenance
requirements for standard, close-coupled configuration of the
oyno 2000 pump line. Disassem M
are also covered in this manual.
1-4. Nameplate Data
The pump nameplate, located on the drive adapter, contains
important information relative to the operation and servicing of
he pump. This information includes the direct t
arrow and the pump model and serial numbers.
he model and seri T
ordering spare parts.
1-5. Pump Rotation
A rotation arrow on the nameplate indicates the direction of
otation. Standard rotation of Moyno 2000 pum r
when viewed from the dr
1-6. Model Number
The pump model number is a series of numbers and letters,
which identifies the pump’s basic design and materials of
construction. A typical model number, for example, might be
BB0 1
1
MOYNO

CAVITY PUMPS
ROTATION
→→→
MODEL NO. 1BB065CDQ3SA1AAAC
MFG. SERIAL AS1234504
DO NOT START OR RUN PUMP WHEN DRY
U.S.A.
Figure 1-1. Typical nameplate showing rotation arrow,
odel, and ma m nufacturing serial numbers.
ill generally be a 1 or 2.
In the thir (con
rod/gear j
y)
revolutions.
component groups of parts.
art, is always alloy steel.
The s
would
eter hardness)
sealing system of the pump. The
a double seal
l
r pac
typical trim code is SA1, designating the follow
The first six numbers and letters identify the pump’s basic design
haracteristics. c
In the first space, a number identifies the number of stages in the
umping elements. This w p
The second position, the letter “B”, designates the pump type as
eing close-coupled. b
d position, a letter designates the pump’s drive train
oint/drive shaft):
A – One size smaller than element (175/220 onl
B – Same size as element
C – Same size as element, but larger gearbox drive
flange and drive shaft size (175/220/345 only)
The next three positions, always numbers, identify the pumping
ement in terms of theoretical gallons per 100 el
The next 3 positions, always letters, describe the pump’s “materials
f construction” in o
The first letter in this group identifies the material of the suction
housing casting.
The second letter indicates the material used in the rotating parts,
i.e., the drive shaft, con rod, rotor, and other metallic parts in
contact with the material being pumped.
The third letter indicates the material of the stator. It identifies only
the stator material and not that of the tube in which the stator is
aced. The tube, a non-wetted p pl
tandard designation such as the CDQ used in our example
result in the following:
C = Cast iron suction chamber
D = Hardened alloy steel internals including drive shaft, con
rod, gear joint, and rotor
Q = Nitrile (NBR) stator (70 durom
The next position is a number identifying the current pump revision.
This manual corresponds to Revision 3.
he next three letters indicate the T
first letter identifies whether packing, a single seal, or
being used. The second and third positions indicate specific sea is
o
king model and type used.
A ing:
S = Single mechanical seal
A1 = John Crane type 2100 SiC/SiC/Viton/316
Date: March 2010
1