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A.0500.751 – IM-TGBLOC/01.00 EN (10/2020)
2.0 Pump description
TopGear BLOC pumps are rotary positive displacement pumps with internal gear. They are made of
cast iron or stainless steel. TG BLOC pumps are assembled from modular elements, which allows
a variety of constructions: heating / cooling jackets (steam), several sleeve bearings, gear and shaft
materials and mounted relief valve.
2.1 Type designation
The pump properties are encoded in the following type indication, which is to be found on the
nameplate.
Example:
TG BLOC 58-80 G2 S SG 2 G1 AV
1 2 3 4 5 6 7 8 9 10
1. Pump family name
TG = TopGear
2. Pump range name
BLOC = Close-coupled pump with single mechanical seal
3. Hydraulics indicated with displacement volume per 100 revolution (in dm
3
) and
nominal port diameter (in mm)
TG BLOC15-50
TG BLOC23-65
TG BLOC58-80
TG BLOC86-100
4. Application
Non-food
FD Food
5. Pump material & port connection type
G2 Pump in cast iron with PN16 flanges to DIN2533
G3 Pump in cast iron with PN20 flanges to ANSI 150 lbs
R2 Pump in stainless steel with PN25/PN40
R3 Pump in stainless steel with PN20 flanges to ANSI 150 lbs
R4 Pump in stainless steel with PN50 flanges to ANSI 300 lbs
R5 Pump in stainless steel with PN16 flanges to DIN2533
6. Jacket options for pump cover
O
Pump cover without jackets
S
Pump cover with jacket and thread connection
7. Idler bush and idler materials
SG Idler bush in hardened steel with idler in iron
CG Idler bush in carbon with idler in iron
BG Idler bush in bronze with idler in iron
BR Idler bush in bronze with idler in stainless steel
CR Idler bush in carbon with idler in stainless steel
