力士乐节流阀常见问题Z2FS6A7-4X/2QV
锅炉或换热器阻力大，所有锅炉或换热器厂商标称阻力都远小于实际阻力。实际上总循环水量的加大必然导致辞锅炉换热器等阻力加大。水流量增大40%，阻力增加锅炉出力不足,实际上流量加大后供回水温差不可能更大。当然煤质和风系统不正常也可能造成锅炉出力问题。
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Z2FS6B5-4X/2QV力士乐节流阀常见问题Z2FS6A7-4X/2QV
