Seal Type |
Buna (Nitrile) |
Buna (Nitrile) |
Buna (Nitrile) |
Buna (Nitrile) |
OEM Replacement |
Bell & Gossett 118681LF |
Bell & Gossett 186499LF |
Bell & Gossett 186862LF |
Bell & Gossett 186543LF |
Inner Diameter |
1/2" |
3/4" |
1-1/4" |
1-5/8" |
Pump Series Compatibility |
B&G 100, HV, LD, HD, PD, Bearing Assemblies, Obsolete series; Armstrong S, H, 1050 Series |
1535 / 355S, 355T, 356T, 358S, 358T, 359T, 3510T, 3511T; Series 90 inline pumps; MF Series 60 pumps |
1510 Series small bearings |
1510 & 1531 Series close-coupled pumps |
Common Uses |
Hydronic, HVAC, plumbing systems |
Inline and MF pumps, 1.5β5HP, 115β460V |
Small bearing pumps, bronze fitted |
Large bearing pumps, bronze fitted |
Replacement For |
B&G 118681, Armstrong 816706-001 / -021, Hydro-Valve RM-880W |
B&G 186499, 186499LF |
B&G 186862, 186862-LF, 186680 |
B&G 186543, 186543LF, P-63340 |
Material |
Buna / Nitrile |
Buna / Nitrile |
Buna / Nitrile |
Buna / Nitrile |
Key Symptoms of Replacement |
Shaft leaks, bearing noise, reduced flow, corrosion |
Shaft leaks, unusual noise, pressure loss |
Shaft leaks, bearing wear, performance issues |
Shaft leaks, bearing wear, flow issues |
Lead-Free |
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