Sonnax Check Balls 10000-12（.218“）采用坚韧，耐磨的酰亚胺化塑料制成。Sonnax酰亚胺化塑料球密封比钢球更好，因为它们符合分离板球座椅。钢检查球很难和重那and wear separator plate ball seats from the repeated high impact of the ball on the seats. Elastomer or rubber check balls seal well. However, the elastomer material wears, reducing the size of the ball. Similar imidized plastic balls have been used on some original equipment late model valve bodies with excellent results. These imidized plastic check balls are not available through the original manufacturer.

• 更好的检查球密封
• 消除钢球的分离板磨损
• 消除弹性体橡胶检查球磨损