5700 Serisi

Lutz-Jesco America Series 5700 metering pumps are of hydraulically actuated, non-lost motion (amplitude modulated) diaphragm design. The unique method of actuation by means of a rotating plunger provides smoother, quieter operation, and the design characteristics minimize back lash and shock loads to the process system. The series is among the longest lasting pumps in the industry and provides reliability in the heaviest workload environments such as mining, nuclear plants, power plants and refineries/petroleum applications. All models meet API 675 standards.

Four models — 5701, 5710, 5720 and 5730 — cover capacities from 0.65 gph (5701) to 350 gph (5730) and pressures up to 4000 psig. While the pump is running or stopped, the stroke length may be manually adjusted from 0 to 100% using the micrometer control, which moves an internal shift ring. The unique spring-loaded rotating plunger is always extending or compressing; it displaces hydraulic fluid through the hollow centre of the drive shaft and flexes the diaphragm for smooth, reliable performance. Repetitive accuracy is ±1%. Oversized main bearings support the drive shaft across a very short span, maximizing mechanical efficiency. The plunger, submersed in an oil reservoir, is the only reciprocating part in the entire hydraulic drive mechanism.

Key features

• Four models: 5701, 5710, 5720, 5730 — simplex or duplex
• Micrometer stroke length adjustment for accurate capacity control of 0-100%
• Power supply: 120 VAC single phase or 230/460 VAC 3-phase TE or XP motor
• Built-in pressure relief valve
• Compact design offers high capacity per square foot of space
• High mechanical efficiency reduces power requirements
• Options: double diaphragm system, electronic or pneumatic capacity control, high suction lift head for up to 16 ft suction lift
• Meets API 675 standards