Valve should be tighten with o ring rubber with Max. 25% compression.

阀门的密封需通过“O”型密封圈实现，密封圈最大压缩量不允许超过25%。

youdao

The results indicate that increasing the compression of O-ring can improve the sealing performance, simultaneously, can make it prone to crack ;

结果表明：增加压缩量可以提高O形圈的密封性，同时也使其容易出现裂纹；

youdao

The results indicate that increasing the compression of O-ring can improve the sealing performance, simultaneously, can make it prone to crack ;

结果表明：增加压缩量可以提高O形圈的密封性，同时也使其容易出现裂纹；

youdao