TG (BB5) - multi-stage, radially split barrel pump as back-to-back version for high pressures

TG02
TG01
TG03

Multistage, horizontal high-pressure pump in barrel design, as back-to-back version. The process pump is particularly suitable for big volumetric flow rates and has a modular design for the best possible adaptation to customers’ requirements and low operating costs.

Operation limits TG

Q (m³/h)	1 800
H (m)	4 200
P (bar)	450
T (° C)	+ 420

Application Industries

Range of application

Based on the excellent hydraulic characteristics and the high reliability in critical applications, the pumps are suitable for applications such as:

applications in the oil and gas industry
offshore applications
booster applications in all industrial branches
water injection onshore and offshore
boiler feed water applications

Operating data, Characteristic Curves

TG: BB5 pump - characteristic curve field visualizes delivery head and efficiency. — TG - characteristic curve

Design features and properties

the “pull-out” version ensures maximum serviceability. Barrel remains in the piping. The pump as an insert unit can be dismantled and serviced.
very short standstill time during maintenance work thanks to cartridge design
1st stage designed as NPSH stage
sealing area designed according to API 610 / 682
centerline-supported
single impeller support depending on design
API 610 requires stable rotor dynamics even on double clearance - a „back-to-back“ arrangement with bearing in the middle fulfills this requirement
suitable for high number of stages and high speeds even on small viscosity
small bearing loads by compensation of axial thrust
wear of casing wear rings has just very small influence upon axial thrust
pump is especially suitable for critical application cases and high speeds

Materials

grey cast iron
ductile cast iron, ADI materials
cast steel
12 % chromium steel
austenitic steel
special alloys

TGDX

Q= 700 m³/h
H= 4200 m
P= 450 bar
T= +360 °C
version for speeds up to 6000 r.p.m.
as a result of speed increase reduction of number of stages and investment cost
special rotor design for high speeds
exact analysis of critical speeds ensures stable runability in the whole operating range
radial-axial slide bearings with forced oil lubrication

Bearing configurations

Standard Version
Radial bearings: antifriction bearings
Axial bearings: antifriction bearings
Ring oil lubrication

Variant
Radial bearings: slide bearings
Axial bearings: antifriction bearings
Ring oil lubrication
Variant
Radial bearings: slide bearings
Axial bearings: slide bearings
Pressure oil lubrication
Type series: TL / TG