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微孔曝气管应为圆管式，有DH65-500、DH65-750、DH65-1000和DH90-1000J几个型号，并且可以根据客户的需要进行定制。由膜片厚度不小于0.8mm的聚氨酯（PU）膜或者不小于1mm的EPDM、硅橡胶膜片附着在PVC套管上,两端由SS304卡箍套环固定。
曝气膜展开宽度大于220mm，长度为1000mm，其中you效打孔区域长度大于920mm，整张曝气膜由两条无孔区域。整个曝气膜开孔面积需大于0.23m2，气泡直径维持在1～3mm。
膜片采用聚氨酯（PU）材质、三元乙丙橡胶（EPDM）、或者硅橡胶（SI），同时添加添加剂以增加物理性质。
进入曝气器的空气应毋需做空气净化，并应满足在长期连续使用或停用后再投入使用，均不会产生微孔的堵塞和混合液的回流。
微孔曝气管通过整根支撑管进气，进气孔分布在支撑管两段，对应曝气膜两段无孔区域。
空气分配管采用特定可调节支架固定于池底，该支架能够满足上下调节以弥补土建池底不平带来的误差，同时还能够前后调节以防止热胀冷缩所带来的对管道的损坏。
微孔曝气器、输气竖管及输气支管应适用于工作温度90℃。
每根竖管bi须安置一套冷凝水排放装置，用于排出管道内积水。该装置由一根DN20的细管插入空气支管底部，应用气提原理将湿气排除。细管沿竖管通至水面上部，由手动阀门控制排除冷凝水。
空气分配管道
在空气输送管及其连接件的制造过程中，原材料bi须采用UPVC颗粒，应掺入yi定比例的添加剂，防止紫外线等的强氧化作用，延长管道使用寿命。
当单根管道长度大于20m时，应备有膨胀接头，允许管道系统yi定程度的膨胀收缩，以防止温差变化大和池子沉降原因引起的管道损坏。
空气布气管压力等级1.0Mpa。
总空气分布管的支架在垂直方向±50mm范围内应可调。空气分配支管的支撑导架应允许空气分配支管纵向移动，具有足够的锚固力，并在垂直方向±50mm范围内应可调。池底干管需设排空装置。
进入管式曝气器的空气应不需作除尘净化，并应满足在长期连续使用和停用后再使用，均不会产生堵塞情况。
支架系统
供气管支架系统具有引导式和固定式两种，并由AISI304不锈钢所制成。支架安装简单，上下可调，在倾斜或高低不平的池底时也可进行方便的安装和调节。支架固定采用高强度化学锚栓；固定部件有足够的锚固力，以防止空气管道在浮力的作用下上浮。管道支架间距应小于2.0m。
冷凝水排放管
合理地选择配备凝结水排放系统。以保证在任何情况下都能将空气管路中的冷凝水排出，确保an全供气。
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