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Plunger Metering Pump Sigma/ 2

Plunger Metering Pump Sigma/ 2

Sigma plunger pump - durable and high-performance
Capacity range 2 - 76 l/h, 320 - 12 bar

The plunger metering pump Sigma/ 2 (Basic Type) is an extremely robust plunger metering pump with high-performance plunger and the option to adjust the pump capacity in 0.2% increments. It offers a wide range of power end versions, such as three-phase or 1-phase AC motors, even for Exe and Exde areas with ATEX certification.

Benefits

Excellent process safety and reliability:

  • Metering reproducibility is better than ± 1 % within the 10 – 100 % stroke length range under defined conditions and with correct installation

Flexible adaptation to the process:

  • Wide range of power end versions, also for use in Exe and Exde areas and different flange designs for the use of customised motors
  • Customised designs are available on request

Technical details

  • Stroke length: 15 mm
  • Stroke length adjustment range: 0 – 100%
  • Stroke length adjustment: manually by self-locking rotary dial in 0.2% increments (optionally with electric actuator or control drive)
  • Metering reproducibility is better than ± 1 % within the 10-100% stroke length adjustment range under certain defined conditions and with proper installation
  • Wetted materials: Stainless steel 1.4571/1.4404, special materials are available on request
  • High-performance oxide ceramic plunger
  • A wide range of power end versions is available: Three-phase standard motor, 1-phase AC motor, motors for use in Exe and Exde areas and different flange designs for use in customer-specific motors
  • Degree of protection IP 55
  • Highly rigid fibreglass-reinforced plastic housing with excellent chemical resistance
  • Provide suitable overload protection in all plunger metering pumps during installation for safety reasons

Field of application

  • Volume-proportional metering of chemicals in the treatment of boiler feed water
  • Metering of reactants and catalysts in the chemical industry
  • Level-dependent metering of auxiliary agents in industrial production engineering, for instance hot wax metering in the production of adhesive strips

Technical Data

  at 50 Hz at 60 Hz
Pump type
Sigma/ 2 HK
bar l/h strokes/min. psi l/h / gph strokes/min. Suction lift

mWS
Connector size

Rp-DN
32002 320 1.9 71 4,627 2.3 /0.61 84 5 1/4
23004 230 4.0 129 3,335 4.8 /1.27 154 5 1/4
10006 100 6.4 195 1,450 7.6 /2.01 233 5 1/4
   
14006 140 6.1 71 2,030 7.1 /1.88 84 4 1/4
10011 100 11.0 129 1,450 13.1/3.46 153 4 1/4
05016 50 16.7 195 725 20.0 /5.28 233 4 1/4
   
07012 70 12.4 71 1,015 14.8 /3.91 85 4 1/4
04522 45 22.5 129 653 26.7/ 7.05 153 4 1/4
02534 25 34.1 195 363 40.8/10.78 233 4 1/4
   
04022 40 22.4 71 580 26.5/ 7.00 84 4 3/8
02541 25 41.5 129 363 49.2 / 13.0 153 4 3/8
01264 12 64.0 195 174 76.0/20.08 233 4 3/8

 

Materials in contact with the medium

Material Liquid end Suction//Discharge connection Seals Balls Ball seat
SST Stainless steel
 1.4404
Stainless steel 1.4404 PTFE or.
PTFE + 25% carbon
Ceramic Stainless steel
1.4404