split wedge meaning in English

开口楔形闸板
拼合楔

Wood splitting wedges - safety requirements
木材劈裂楔.安全要求
Wood - splitting wedges
木材劈裂楔
Consult factory for centerline to top dimensions ( open and closed ) for split wedge valves
对于拼合楔形闸板阀门的中心线至顶端(开启和关闭状态下)的尺寸，请咨询工厂。
Flexible or split wedges are recommended for service above 500 ? to avoid wedge binding due to thermal expansion
对于温度超过260的应用环境，建议采用柔性或拼合式楔形闸板，避免楔形闸板由于热膨胀而被卡住。