AM - Universal type (-92kPa) | 25L 50L 75L 100L 125L 150L | D B AD E (Refer to table 1) | N - NBR E - EPDM F - Fluorine rubber | Nil - Standard, without non-return valve A - With non-return valve | Nil - Standard,without control device PD - Electric control air supply PQ - Pneumatic control air supply VD - Eletric control vacuum breaking VQ - Pneumatic control vacuum breaking PVD - Electic control(air supply+ vacuum breaking) Combination PVQ - Pneumatic control(air supply+ vacuum breaking) Combination ES - Energy-saving system |