5701 Serisi

The Model 5701 metering pump is a 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 sine wave characteristics minimize back lash and shock loads to the process system. One of the longest lasting pumps in the industry, the 5701 provides reliability in mining, nuclear plants, power plants and refineries/petroleum applications, and meets API 675 standards.

The Model 5701 offers maximum capacities from 0.65 to 13.8 gph at pressures of 150 to 2000 psig and is available in four stroking speeds. 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 rugged cast aluminum housing contains a high performance rotating plunger submersed in an oil reservoir. H2SO4 compatible materials are available.

Key features

• Operating pressure up to 2000 psig
• Double ball check valves
• Cast aluminum housing
• 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