小巧灵活的设计使这款气体驱动泵与 464 型电子控制装置相结合,成为输送高质量样品的理想之选。 电子控制装置. Flow rates of 20 to 150 mL/min make the 408M suitable for low flow sampling applications. Constructed of stainless steel and PTFE tubing for any depths up to 73 m (240 ft.) applications. This is the only viable option in wells with depth to water over 45m (150 ft.).