Air intake filters can protect the hydraulic system from contaminants in the intaking air, which are generated by factors like oil level change. In order to assure the system’s cleanliness, the air intake filter need to be replaced too when replacing other filter elements.
| Filter Type | D | D1 | D2 | D3 | d | H1 | H2 | H3 | S | M |
| PQA47 | 47 | 31 | 29 | 52 | 41 | 48 | 64 | 3-M4 | ||
| PQA80A | 80 | 52 | 50 | 83 | 73 | 57 | 78 | 6-M4 | ||
| PQA80B | 100 | |||||||||
| PQA80C | 150 | |||||||||
| PQA92 | 92 | 70 | 80 | 140 | 120 | 53 | 180 | |||
| PQA150 | 150 | 91 | 89 | 160 | 145 | 125 | 195 | 6-M4 |
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Hebei Huilong Hydraulic Machinery Co., Ltd.
