New P1730C, P1727C, P1722C, and P1716C Pumps

The new P1730C, P1727C, P1722C, and P1716C pumps replace the P1730, P1730F, P1730X, P1730A, P1727, P1727FB, P1727X, P1727A, P1722, P1722B, P1722X, P1722A, P1716, P1716B, P1716X, and P1716A pumps respectively. The pumps are equipped with a pressed-on silicon carbide seal seat and a new shaft and bearing assembly. Previous pump designs can be upgraded to this new design by utilizing the 25120-SHW shaft bearing assembly and the 25115-SHW seal kit. This seal kit includes a seal pusher that sets the proper height of the seal seat on the shaft.


For further information about this option and how to identify whether or not you have the seal upgrade, please click on the P1730C, P1727C, P1722C, or P1716C pump links and download the technical guide.

Warning: The new 25120 shaft and bearing assembly can only be used with the 25115 mechanical seal kit which utilizes a pressed on seal seat. This seal is an upgrade over the standard mechanical seal. Attempting to use the 15955 or 23799 mechanical seal with the 25120 shaft bearing assembly or in a standard P1700 pump will damage the seal and cause a shaft leak. The 25115 mechanical seal kit CANNOT be used on the standard P1700 shaft due to the design. The 25115 mechanical seal kit can only be used in either a P1716C, P1722C, P1727C, P1730C, or P17XX-04 pump or with a P1700 series pump that has been upgraded with the 25120 shaft and bearing assembly. Attempting to use the 25115 mechanical seal on an older shaft design will damage the shaft and mechanical seal which will cause a seal leak.

Note: The 25120 shaft and bearing assemblies can be identified by the indentation machined into the shaft on the impeller end, the slightly undercut shaft in the key area which allows the seal seat to slide down the shaft to within 3/8” of the mechanical seal, or the lack of a snap ring groove between the impeller and the bearing closest to the impeller. These features are all absent on older shaft bearing versions of the shaft.

Pump Assistance

Post questions about the identification, use, and maintenance of your Sherwood pumps and we will do our best to answer your questions.

27000 Seal Change

The new P2708X pump replaces the P2701, P2702, P2703, P2704, P2805, P2706, P2708, P2709, and P2710 pumps. The pump is equipped with a pressed on silicon carbide seal seat and a new shaft and bearing assembly is used with this change. Older pumps can be upgraded to this new design by utilizing the 25100-SHW shaft bearing assembly and the 25115-SHW seal kit. This seal kit includes a seal pusher that sets the proper height of the seal seat on the shaft.


For further information about this option and how to identify whether or not you have the seal upgrade, please follow the P2708X pump link and download the technical guide.

Warning: The new water seal kit 25115-SHW is designed to be used with newer pump designs P2708-01, P2708X, P2709-01, and P2710-01) or upgraded older pump designs using the new 25100-SHW shaft/bearing assembly that facilitates the new metal sleeve water seal. The 25115-SHW metal sleeve water seal cannot be used with the previous shaft and bearing assemblies. Doing so will cause damage to the shaft and the seal.

Identifying the proper shaft for use with the 25115-SHW mechanical seal kit: 25100-SHW shaft/bearing assemblies do NOT have a retaining ring groove on the shaft in the area between the impeller and the first bearing (the bearing on the impeller end of the pump). These shaft and bearing assemblies can be used with the 25115-SHW. If a retaining ring exists between the impeller and the first bearing, do not use the 25115-SHW mechanical seal kit.

New 29000 and 30000 Impellers

Sherwood has added two more impellers to the product line: 29000 and 30000. The 29000 is the same as the 18000 impeller except that the spline is a 45 degree 10 tooth version for longer life. The 30000 is the same as the 22000 impeller except that the spline is a 45 degree 10 tooth version used for longer life. Both impellers can be identified by the difference in number of teeth from the previous 30 degree 14 tooth spline, as well as the part number being molded into the impeller on the one end.

2009 IBEX

Sherwood and Shurflo have a combined booth at this year's IBEX. Come visit us at booth 2202!

Inspection and Preventative Maintenance

Recommended inspection to be performed at any service interval:

Impeller - Inspect for cracks or tears. Also, inspect for excessive abrasion of vane ends, pitting, and a bowed set. Replace annually, or if any of the conditions exist.

Wear Plate - Inspect for wear, flatness, and pin for fatigue. Replace at major (minor and
major for 17000 series) pump rebuild or if wear is evident to maintain pump flow and suction performance.

Cam - Replace at major pump rebuild or if pitting/wear is evident.

Cover - Replace at major pump rebuild or if wear exists to maintainpump flow and suction performance.

Mechanical Seal - Replace at minor and major pump rebuild or if leaking.

Lip Seal - Replace at major (minor and major for 17000 and G series) pump rebuild or if leaking.

Shaft - Inspect for wear in area of lip seal and rubber impeller. Grooving of lip seal area or heavy fretting of the impeller end shaft will require shaft replacement.

Bearing - Inspect for loss of grease, corrosion or rough rotation. Replace at major pump rebuild or if these conditions exsist.

View the appropriate OIPM or Marine Catalog for assembly, disassembly, and recommended Maintenance Schedule. The recommended Maintenance Schedule can be found on page 39 of the Marine Catalog.

Impeller Tips

Inspect Impellers at every service interval.
Inspect impeller blades for indicated signs of wear (shown in the picture to the left) and replace the impeller annually or if any of these conditions exsist.
For extended shutdowns or winterizations, remove the impeller from the pump to prevent it from taking a set.
Store impellers in a dark and cool place.
Use non-petroleum lubricant to help install the impeller.
Do NOT use a petroleum lubricant at any time, as it will swell the impeller.