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Hanna Instruments BL20-1 Blackstone Chemical Feed Dosing Pump, 18.3 LPH, 115V

2.0 out of 5 stars 1 customer review

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Specifications for this item
Brand Name Hanna Instruments
Part Number BL20-1
Number of Items 1
Item Weight 6.6 pounds
Pressure 7.4  PSI
Pressure Flow Rate 18.3  LPH
UNSPSC Code 40151505

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Product Features

  • Positive displacement solenoid-driven chemical dosing pump for use in industrial processes and manufacturing applications
  • Maximum flow rate of 18.3 liters per hour (LPH) and pressure of 0.5 bar
  • Polytetrafluoroethylene (PTFE), polyvinylidene difluoride (PVDF), and fluoroelastomer (FKM), and glass components for corrosion resistance
  • Adjustable knob for control of fluid rate from 0 to 100 percent
  • Accepts 115V, 50/60Hz input power

Product Description

The Hanna Instruments BL20-1 chemical feed dosing pump has a 18.3 liters per hour (LPH) output at a pressure of 0.5 bar and is suitable for use in industrial processes and manufacturing applications. The Blackstone-series pump is positive displacement and solenoid-driven for consistent flow with polytetrafluoroethylene (PTFE), polyvinylidene difluoride (PVDF), and fluoroelastomer (FKM), and glass components for corrosion resistance. A single knob adjusts fluid output from 0 to 100 percent. This pump accepts 115V, 60Hz input power and meets the Ingress Protection (IP65) standard for resistance to dirt and water.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.


Product Details

  • Product Dimensions: 50 x 50 x 50 inches ; 6.6 pounds
  • Shipping Weight: 7.8 pounds
  • ASIN: B0085WX72I
  • Item model number: BL20-1
  • Average Customer Review: 2.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Best Sellers Rank: #283,540 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

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We use these for irrigation injection. We have had five of them. One failed outright, one only pumps about 40% of of the others, and they all have issues with their one-way valves. These pumps MUST pump into an ambient pressure environment. Any back pressure will feed the target fluid into your source tanks, and any vacuum will suck the source fluid out. It took us many tries to figure out the right injection plumbing for these pumps (requires a siphon and a one-way air admittance valve)

on the positive side these are a lot cheaper than other injection pumps and have capacitors built in so they work well with solid state relay controllers.

Also On the positive side, Hanna tech support is pretty good.
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