Durapac’s high-flow manual pump range delivers exceptional performance in a portable two-speed design, making it ideal for operating high-tonnage cylinders in situations where traditional power sources are unavailable.Both models in this range provide an impressive first-stage flow rate of 113 cc per stroke, ensuring quick cylinder advancement and retraction. The high-pressure flow rate of 4 cc per stroke ensures reliable performance under heavy loads.These pumps are available with either a 2-way valve for single-acting applications or a 4-way valve for double-acting Operations. Known for their durable construction and industry-proven reliability, Durapac pumps are built to withstand demanding conditions while delivering consistent results.