... suppliers, Chuangrui is always at your service.DC brushless peristaltic pumps: maintenance-free DC brushless drives.* Applicable pump heads: YZ1515x, ... YZ2515x, KZ25, BZ series, etc.* With both-way large torque, DC brushless drives. It can be ... knob, the drive revolving speed can be continuously adjusted by hand, easy to operate, high control precision.* FULL SPEED button ...