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HD Process Pump Numbering System
1
2
3
4
5
6
7
8
9
10
11
12
13
DIGITS 1 & 2
O1-INDUSTRIAL DUTY
(ID)
O5 – INDUSTRIAL DUTY
(ID) Only Models with
**
O2-STANDARD DUTY
(SD) Ductile Iron Only
O4-STANDARD DUTY
(SD) Stainless Steel Only
DIGITS 3 & 4
05 – Model 30
01 – Model 5A
14 – Model 2A
02 – Model 10
16 – Model 70A**
03 – Model 16
29 – Model 3A
05 – Model 25A
31 – Model 120A**
14 – Model 65
75 – Model 330**
26 – Model 125A
91 – Model 600**
DIGITS 5 & 6
04 – 316 Stainless Steel (O1, O4 & O5 Models)
09 – Ductile Iron (O1, O2 & O5 Models)
DIGIT 7
0 – Internal NPT (Std. on ID models)
1 – External NPT (Standard on SD models)
DIGIT 8
0 – No Relief Valve
1 – Relief Valve (Available on all SD models & ID models 30, 2A, 3A, 70A, 120A)
DIGITS 9 & 10
01 – Hot Clearance
02 – Special Shaft Material
05 – Special Packing
06 – Special Packing Configuration
08 – Mechanical Seals
09 – Special Bushings
10 – Special Clearances
13 – Steam Jacket/Tracing
19 – Special Ports (Flanged, etc.)
21 – Tutriding
26 – Interference Fit Gears
27 – Special U-Cup/Lip Seals
28 - Miscellaneous
DIGITS 11 & 12
01, 02, Etc. (Serialized at the factory)
DIGIT 13 (If Required)
D – Double Lobe (Available on ID models only)
T – PTFE housing and faceplate bushings (SD Models)
