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PR Model
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Variable Excentric Drive Metering Pump
Primeroyal PR Model

The PRIMEROYAL metering pumps are versatile, reliable pumps that consistently and accurately inject chemicals. The pumps’ field-proven design enables precise control of the pump delivery rate with a +/-1% steady state accuracy, over a range from 10 to 100% of the nominal flow rate. They feature a compact, variable eccentric drive that changes the stroke length by repositioning the center of the shaft in the eccentric.

Model PR provides accurate dosing of a broad spectrum of fluids used in many industrial processes due to its modular design which offers several types of liquid ends, capacity control options and other configuration options enabling it to meet the specific requirements of your process application.

DESCRIPTION

Variable Excentric Drive Metering Pump
Primeroyal PR Model

The PRIMEROYAL metering pumps are versatile, reliable pumps that consistently and accurately inject chemicals. The pumps’ field-proven design enables precise control of the pump delivery rate with a +/-1% steady state accuracy, over a range from 10 to 100% of the nominal flow rate. They feature a compact, variable eccentric drive that changes the stroke length by repositioning the center of the shaft in the eccentric.

Model PR provides accurate dosing of a broad spectrum of fluids used in many industrial processes due to its modular design which offers several types of liquid ends, capacity control options and other configuration options enabling it to meet the specific requirements of your process application.

Benefits:

  • Compliant with API 675 standards
  • Adaptability and accuracy: capacity adjustable while running or stopped (stroke micrometric adjustment, 10 turns only from 0 to 100%, graduation scale in %)
  • Space constraints: available in vertical or horizontal motor configurations
  • Suitable for the majority of fluids in all industrial processes: many stroke speeds for accurate dosing
  • Modular design to precisely fit your needs: multiple options for liquid ends, check valves, connection types, and control
  • Multiplexing capability: providing cost savings in the power consumption and asset footprint while reducing pulsation and required NPSH and, giving the capability to inject several different products or meet a specific flow rate
  • Long life: ensured by using high quality materials engineered to a robust and proven construction, oil bath lubrication for reliability during continuous operation
  • Safety: diaphragm liquid ends guaranteed leak-proof with service life in excess of 20,000 hours
  • Operations even in the most extreme conditions: specific configurations to operate in saline/offshore conditions, desert, or low temperature environment
  • Global design: can comply with the main worldwide certifications and systems: ATEX, NACE, SASO, Customs Union, etc.
  • Over-pressure protection: integrated safety valve to protect the pump on diaphragm liquid ends
  • Maintenance easy and fast: the patented Mechanically Actuated Refill System (MARS) on PTFE diaphragm liquid ends avoids the need to delicately adjust the refill valve

Technical:

Packed plunger, PTFE or metallic diaphragm liquid ends available

  • Liquid end body in 316L S.S. or 17.4 PH. Other materials such as Alloy 20, Hastelloy, super Duplex available upon request
  • Diaphragms in PTFE or 301 stainless steel; plunger in ceramic (Al203) or chromium oxide coated
  • 6 stroke speeds/gear ratios available with 50 Hzmotor: 48, 73, 93, 117, 146 and 175 spm. 5 stroke speeds/gear ratios with 60 Hz-motor: 58, 88, 112, 140 and 175 spm
  • Manual, electrical or pneumatic stroke length adjustment
  • Fixed stroke version. A variable speed motor can allow to instantly vary the flow rate
  • IEC or NEMA mounting, motor for frequency variation
  • Electric equipment for non-hazardous or hazardous area, large variety of protections and insulations
  • Conforms to ATEX CE EX II 2G/D c T4/T3 with ATEX motors
  • Optimum protection for critical processes or pumped fluids: double or triple diaphragm, diaphragm failure detection, temperature probes
  • Special valves for any type of fluid (including concentrated sulphuric acid and slurries)
  • Remote head, cooling/heating jacket to operate into processes requiring low/extreme fluid temperatures
  • Full set of connections: screwed or flanged connectors(ANSI, DIN or ISO)
  • Wide range of accessories available to complete your dosing installation

Applications:

Refinery/Petrochemi cal/Chemical: pumping of hydrocarbons/LP steam condensate, transfer of ammonia water in fertilizer plant, manufacturing of DME (dimethyl ether) from methanol

  • General industry: high pressure cleaning of mechanical parts for industry
  • Oil & Gas: Chemical Injection
    • Flow assurance on onshore and offshore sites: hydrate prevention by injection of thermodynamic inhibitors (methanol, MEG and glycol), prevention and removal of scale/asphaltene deposits, microbial pollution control by biocide injection, injection of corrosion inhibitors
    • Gas dehydration by MEG, TEG, DEG injection
    • Water treatment: closed drain pump for hydrocarbon condensate transfer

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