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Cat Pumps SF Plunger Pump Superflow Design

The SF plunger pumps are a combination of the UNIFLOW piston and direct flow plunger pump designs. In the SF pumps, both the inlet and discharge valves are spring-loaded closed and hydraulically opened, just like the plunger pumps, however, they have a flow- through ceramic plunger design.

The continuous forward flow characteristic of the piston pumps is utilized in conjunction with the spring-reinforced, preset packing design of the plunger pumps. These features give the SF pumps strong suction capabilities and higher pressure performances.

At the beginning of the stroke, the inlet valve is closed against the ceramic plungers and the flow is forced out through the discharge valves.

As the plunger rod begins its backward stroke, the inlet valve opens [moves away from the ceramic plunger] and allows the inlet flow to enter the manifold chamber through the holes in the ceramic plunger.

Note: The spring tension on the discharge valves requires a minimum of 100 PSI discharge pressure to properly activate the valves. (www.catpumps.com)

CALL FOR PRICING!
1 800 519-9279