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译文：
　呼吸阀的检查和保养： 　　为了确保新型全天候呼吸阀的性能达到xx使用的目的。呼吸阀在半年进行检查和保养。 　　1、检查压力阀盘和真空阀盘动作是否灵活，导杆阀环接触有无损伤。 　　2、重新安装压力阀盘时，就保证接触面要严密，导杆升降灵活。 　　3、启用新的呼吸阀时，必须xx阀盘间的防震物。 　　操作压力： 　　A级正压：355Pa(36亳米水柱)负压：295Pa(30亳米水柱) 　　B级正压：980Pa(100亳米水柱)负压：295Pa(30亳米水柱) 　　C级正压：1765Pa(180亳米水柱)负压：295Pa(30亳米水柱) 　　* GFQ全天候呼吸阀 　　* GZW-I阻爆燃管道阻火器 　　* QZF-89型铝合金全天候防火呼吸阀 　　* QHXF-89防爆呼吸阀

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原文：
Breathing valve inspection and maintenance: In order to ensure the performance of the new all-weather breathing valve to full use purposes. Breathing valve inspection and maintenance in half. 1, check the pressure valve and vacuum valve plate movement plate is flexible, guide ring contact with or without valve damage. 2, re-installed on the valve disc, the contact surface to ensure tight, flexible lead shot down. 3, opened the new respiratory valve, the valve plate must be removed between the shock thing. Operating pressure: A-level positive airway pressure: 355Pa (36 mm water column) negative pressure: 295Pa (30 mm water column) B-level positive airway pressure: 980Pa (100 mm water column) negative pressure: 295Pa (30 mm water column) C-level positive airway pressure: 1765Pa (180 mm water column) negative pressure: 295Pa (30 mm water column) * GFQ weather breathing valve * GZW-I resistance deflagration flame arrester pipe * QZF-89 all-weather fire breathing valve aluminum alloy * QHXF-89 explosion-proof breathing valve