Data SZWT 300 600 1000 digital microcomputer governor A.Main parameters SZWT-300 600 1000 1).Relay device piston diameter Ã?130 Ã?170 Ã?215 2)Relay piston rod diameter Ã?30 Ã?50 Ã?50 3)Relay piston stroke 150 170 170 4)Relay device volume 1.8L 3.52L 5.84L 5)Pressure tank volume 60L 100L 180L 6)Normal pressure tank storage capacity 20L 35L 65L 7)Rated pressure 2.5MPA 4.0MPA 8)Oil pump capacity (2.54.0Mpa.T=30-35)0 .5/S 9)Maximum speed shaft angle 45 degree