Our Pumps | Model Explanation
Explanation of Pump Model Number's
LobePro rotary pumps are modelled and identified according to its intended application or use. The nomenclature below
describes the standard pump frame size, capacity, pressure capability, drive shaft arrangement, application and the serial
number as the pump materials of construction include standard wear parts and casing material. Standard and other
common options are listed below. Other options available upon request.
1 – Certification / Service:
S – General Use, Sludge, Mud & Slurries
C – Chemical & Corrosive
D – Duplex Steel-Oil & Gas
API – API 676 Compliant (Available in each Service)
2 – Pump Frame:
S – Small
M – Medium
L – Large
3 – Rate Capacity/Size:
Gallons per 100 revolutions
4 – Shaft Support or Arrangement:
. – Overhanging shafts
h – Fully supported shafts
p – Proform pump casing
c – Component/adjustable housings
5- Driver Shaft Configuration:
T – Top Drive
B – Bottom Drive
H – Top Hydraulic
6 – Shaft Material:
-A – A4140 Steel
-S – 440A Stainless Steel
-X – Custom
7 – Pump Cover:
G – Grey Iron
C – Carbon Steel
S – 316 Stainless Steel
T – Grey Iron – CIT coated
D – Duplex 2205
H – Grey Iron HP Door
U – Grey Iron – CIT coated HP Door
8 – Flange Ring:
C – Carbon Steel
S – 316 Stainless Steel
D – Duplex 2205
_ – None
9 – Housing Segment / Casing:
A – AGI-600 Grey Iron
D – CD3mn Duplex Steel
S – 316 Stainless Steel
G – Class 30 Grey Iron
C – Carbon Steel
10 – Housing Segment Gasket
V – Vegetable Fiber
K – C7400 Aramid Fiber
E – EDPM
F – FKM
11 – Seal Quench Chamber:
G – Grey Iron
T – Grey Iron – CIT coated
C – Carbon Steel
S – 316 Stainless Steel
12 – Oil Drain Connections:
D – Standard Plugs
Q – Brass/Steel Quick Drain Hoses
S – Stainless Steel Quick Drain Hoses
13 – Transition Fittings:
A – Standard Steel Transition Fitting
S – Standard SS Transition Fitting
X – Special Transition Fitting
_ – No Transition Fitting
14 – Transition Fitting Gaskets:
M – Multi-Swell
F – FKM E – EDPM
15 – Pressure Disc:
S – 316 Stainless Steel
D – Duplex Stainless Steel
L – High Pressure Door SpacLh.SS
16 – Mechanical Seal Assembly:
N – LARS.D.EN.F R – LARS.D.SS.F
S – LARS.SC.SS.F E – LARS.SC.DS.F
V – LARS.TC.DS.F Q – LARS.TC.SS.F
M – LARS.SC.EN.F U – LARS.TC.EN.F
17 – Strain Bolts:
E – Geomet-coated Steel
S – 316 Stainless Steel
D – Duplex Stainless Steel
N – HP Door Lh Steel Nut
18 – Orings:
F – FKM E – EPDM
H – HNBR N – NBR
19 – Wear Plates:
A – AR500
S – 316 Stainless Steel
D – Duplex 2205
20 – Lobe Coating / Core Material
N – NBR Steel Core
G – NBR GI Core
H – HNBR
E – EDPM
F – FKM
21 – Lobe Shape:
4h – 4 Wing Helix
6h – 6 Wing Helix
6s – 6 Wing Straight
2s – 2 Wing Straight
22 – Serial Number