delta®

diaphragm metering pump

Energy efficient and NSF approved

 

The delta® is a solenoid driven, diaphragm metering pump. It covers a feed range from 2.0 gph at 363 psi (8 l/h at 25 bar) to 20 gph at 29 psi (75 l/h at 2 bar). Due to its wide adjustment range – both the stroke length and the stroke rate can be varied – this output range is covered by seven different pump sizes. This reduces the variety of replacement parts and therefore the operating costs. The pumps are just as easy to operate as the popular ProMinent® Gamma/ L and Sigma series.

 

ProMinent® offers the revolutionary new optoDrive® for the first time in the delta® series. The optoDrive® allows the suction & discharge stroke duration to be adjusted. This provides a turndown ratio of 36,000:1.

 

Benefits

 

  • Certified to NSF/ANSI 61 (acrylic or PVDF liquid ends)
  • Adjustable suction and discharge stroke duration delivers a more even flow
  • optoDrive® uses the pump energy profile to indicate over-pressure and loss of prime without the need for an external flow monitor
  • Auto-degassing design is ideal for off-gassing chemicals
  • Turndown ratio makes it possible to reduce the number of pump models required for standardization
  • HV liquid ends for higher viscosity media
  • pH, ORP or Chlorine control module
  • Interface for profibus or CANopen (optional)
  • Diaphragm rupture detection and signalling (optional)

 

Features

 

  • delta® built-in auto-degassing technology
  • Options to de-gas upon loss of pressure and/or periodically for prevention
  • Self detection and correction of airlock (loss of pressure)
  • Increased safety through the automatic detection of blocked or broken discharge lines
  • Eliminates the need to dilute hypochlorite for small water treatment systems.
  • Increased pump accuracy through automatic correction of flow over a wide variation of backpressure
  • PTFE-coated dosing diaphragm
  • Dosing repeatability ± 2% when used in accordance with the operating instructions
  • Permissible ambient temperature –10°C to +45°C
  • Average power consumption 78 W
  • Protection IP65, insulation class F

 

Applications

 

  • Emulsion polymer feed
  • Process applications requiring a large turndown
  • Water and Wastewater treatment
  • Cooling tower and Boilers

Capacity Data

Liquid end materials in contact with media

delta®
Pump
Version
Capacity at Maximum
Backpressure
strokes/
minute
Pre-primed
suct. lift
Suction/Discharge
connectors
Shipping weights
(higher weights are for SST)
gph (l/h) psig (bar) ft. (m) in. lbs. (kg)
2508 2 (7.5) 363 (25) 200 19.6 (5) 3/8” x 1/2”
(1/2” MNPT dis. only)
22-24 (10-11)
1608 2.1 (7.8) 232 (16) 200 16.4 (5) 3/8” x 1/4” 22-24 (10-11)
1612 3 (11.3) 232 (16) 200 19.6 (6) 3/8” x 1/4” 22-24 (10-11)
1020 4.8 (18) 145 (10) 200 16.4 (5) 1/2” x 3/8” 22-24 (10-11)
0703 7.7 (29.2) 102 (7) 200 16.4 (5) 1/2” x 3/8” 22-24 (10-11)
0450 12.9 (49) 58 (4) 200 9.8 (3) 5/8” ID hose
barb standard*
22-24 (10-11)
0280 19.8 (75) 29 (2) 200 6.7 (2) 5/8” ID hose
barb standard*
22-24 (10-11)
* (1/2” MNPT optional)
Version Liquid End Suction/Discharge valves Seals Valve balls Diaphragm*
PVT* PVDF* PVDF* PTFE Ceramic PTFE
SST 316 Stainless steel 316 Stainless steel PTFE Ceramic PTFE
NPE Acrylic PVC EPDM Ceramic PTFE
NPB Acrylic PVC Viton® Ceramic PTFE
*Highly compatible material suitable for most fluids.
Viton® is a registered trademark of DuPont Dow Elastomers.

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Hopkins Technical Products, Inc. • 2155 Elkins Way, Suite A • Brentwood, CA 94513

toll free: (800) 732-6704 • ph: (925) 240-2160 • fax: (925) 240-2166

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