Plei-Tech® check valve balls are used in pumps to improve pump performance and help pumps operate quietly. Polyurethane is ideally suited for ball check valves because of its outstanding abrasion and chemical resistance. The dynamic performance of Plei-Tech® polyurethanes allow for check valve operation at higher pressure and speeds.
Precision plastic balls from .75″ to 10″ are molded with or without metal inserts, and other polyurethane plastic ball sizes can also be custom molded. Both the urethane and the insert are selected to match performance demands with specific gravity needs. Standard durometers range from 80A to 75D, but softer compounds can be used. Pleiger Plastics Company can either furnish plastic balls “as cast” or “precision ground” for more exacting ball type check valve requirements.
In addition to check valve balls, Pleiger also manufactures and recovers polyurethane check valve ball seats. The use of a polyurethane check valve ball and seat forms a seal that prevents backflow. The pump’s noise output is also greatly reduced.
Below is a list of common plastic balls and their weight:
Ball Size Chart
|Standard Core Size
Without Core (Grams )
With Core (Grams)
|Standard||Other Hardnesses (80A – 75D)|
|Surface Finish||128 RMS||140 RMS|
|No Core||25 Pieces||1 – 10 add 50%; 11 – 24 add 25%|
|With Core||See Above||See Above|
All Weights In Grams
.75″ and 1.00″ balls are natural in color, all others as shown above
All Balls are Centerless Ground except 7.88″ and 9.75″ which are cast to size
Other Metric and English Sizes Available, Call For Pricing
All Prices F.O.B. Washington, PA
Contact Pleiger Plastics today for more information on our polyurethane balls.