Design of major parts, Performance and operating limits – Flowserve TB-MAG INNOMAG User Manual

Page 14

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INNOMAG® TB-

MAG™ ASME and ISO SEALLESS ENGLISH 26999988 06-14

Page 14 of 44

Process Liquid Specific Gravity and
Temperature (°F or °C)

Pump RPM / Pump power (HP or kW) @
Duty Point

Design Pressure (psig or barg) @ 38°C
(100 °F)

Customer Pump Tag #

Process Liquid Being Pumped

CE Marking: Flowserve Innomag® pumps
are certified to European Directive
2014/34/EU (previously 94/9/EC which
remains valid until April 20

th

2016 during

the transition). The certification level is:
Group II, Category 2, Gas, T4 121 ° C


The typical nomenclature above is the general
guide to the TB-

MAG™ configuration description.

Identify the actual pump size and serial number
from the pump nameplate. Check that this agrees
with the applicable certification provided.

3.4 Design of major parts


3.4.1 Pump casing
Ductile iron armor with bonded ETFE lining.

The horizontal version of the TB-

MAG™ pump

casing is designed with a horizontal centerline end
inlet and a vertical centerline top outlet that makes
it self-venting.

For ease of maintenance, the pump is constructed
so that pipe connectors do not have to be disturbed
when internal maintenance is required (back pull
out).

3.4.2 Impeller
Integrally molded one-piece impeller / inner rotor.
The impeller is fully shrouded (closed) with fully open
suction, and the inner rotor is fitted with Neodymium
Iron Boron (NdFeB) magnets.

3.4.3 Wetted Bearings System
The standard material for the bearings and shaft is
alpha sintered silicon carbide (SiC). The system is
comprised of a shaft which is cantilever mounted
into the containment shell and rotating bushing(s)
mounted in the impeller. Thrust bearings are not
required due to thrust balance design.

3.4.4 Containment Ring
One-piece ductile iron part aligns and supports the
containment shell to establish the pressure
boundary of the pump. Allows servicing of the
motor without opening the liquid end of the pump.

3.4.5 Outer Magnet Assembly
One-piece ductile iron housing fitted with
Neodymium Iron Boron (NdFeB) magnets. One
common outer rotor for each motor frame and a
visual alignment groove allows for ease of axial
alignment.

3.4.6 Containment Shell and O-Ring
The containment shell is comprised of an aramid
fiber composite outer housing and an ETFE liner.
The shell includes a fully confined O-ring groove
which establishes the gasket interface with the
casing.

3.4.7 Adapter
Mates pump to motor in close-coupled
arrangements. Design allows the use of multiple
motor sizes with one adapter.

3.4.8 Driver
The driver is normally an electric motor. Different
drive configurations may be fitted such as internal
combustion engines, turbines, hydraulic motors, and
driving via couplings, belts, gearboxes, drive shafts,
etc.

3.4.9 Accessories
Accessories may be fitted when specified by the
customer

3.5 Performance and operating limits

This product has been selected to meet the
specifications of the purchase order. See Section
1.5.

The following data is included as additional
information to help with your installation. It is
typical, and factors such as temperature and
materials may influence this data. If required, a
definitive statement for your particular application
can be obtained from Flowserve.

3.5.1 Operating limits
Normal maximum ambient temperature:

+40 ºC (104 ºF).

Normal minimum ambient temperature:

-20 ºC (-4 ºF).

Maximum pump speed: refer to the nameplate.

3.5.2 Pressure-Temperature Rating
The pump pressure and temperature limits are
included in the Figure 3-1. PN 16 flanges are
standard for ISO models while Class 150 flanges
are standard for ASME models. Find the maximum
allowable pressure for the supplied pump, given the
flange drilling pattern and operating temperature.

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