Perfect Scarf Joints for Better Pump Shaft and Valve Stem Sealing

Sulzer engineers custom boiler feed pumps with updated hydraulic design for 50% less than replacement cost. Power stations using steam turbines to drive generators are reliant on boiler feed pumps, among several other vital pieces of equipment, to ensure output to the grid matches demand from consumers.

Calgary is one of Canada’s fastest growing metropolitan cities and is the major urban centre for the southern half of the province of Alberta. Calgary is located in the foothills of the Canadian Rocky Mountains, at the confluence of the Bow and Elbow Rivers.

Greene Tweed, a global manufacturer of high-performance seals, thermoplastics, composites, and engineered components, highlights WR 650, a next-generation PFA composite with superior dry run characteristics designed to replace metallic wear parts in centrifugal pumps and other pump applications.

The optimum function of rotary shaft seals depends on many factors. One of them is the wettability of the sealing lip. This parameter plays a particularly important role with synthetic lubricants such as polyglycol. If wetting is too low, not only does wear on the sealing lip increase, but the contact with the rotating shaft can also damage the shaft itself.