Programmable 7-day Timer Metering Pump - 25BDF1HP-7 BDF SERIES From Stenner

Programmable 7-day Timer Metering Pump

  • 100 psi (6.9 bar)

  • max 1.3 oz (39 mL)/event

How It Works

Stenner’s adjustable programmable 7-day metering pump is built with a low rpm motor and a detachable pump head, universal to all Stenner pumps. The BDF pump has a fixed rpm motor which is activated by dip switches to inject scheduled daily doses of chemical. The pump can be programmed to activate daily from 1 to 7 days per week. All Stenner metering pumps have a 3-point roller design in the pump head, which acts as a check valve to prevent back flow, siphoning, overdosing and loss of prime.

The motor’s output shaft rotates at a fixed rpm which drives the roller assembly within the pump head. The chemical solution in the pump tube is captured between the rollers as they rotate and compress the tube. As the rollers advance, the squeezed tube section regains its original form and generates a vacuum, creating the self-priming feature that delivers a constant flow unaffected by the outlet pressure.


  • Self-priming up to 25 feet and does not lose prime

  • Can pump off-gassing solutions

  • Solutions contained in tube, not exposed to pump components or air

  • Subassemblies fit together without tools; easy service or conversion to another model

  • Pump head universal to all Stenner pumps

  • Can run dry without damage

  • Will not clog from dirt or debris

  • Reproducible outputs within 2%

  • Pump tubes accept a variety of chemicals

  • 7-day event timer

  • Customize dosages with simple switches

  • Programmable up to 24 events per day

  • Manual priming switch

  • Battery back up for event times

25BDF1HP-7 BDF Series



A rotating assembly of rollers compresses a flexible tube within a housing to create a vacuum to lift a chemical solution. The self-priming peristaltic pump is also referred to a hose, tube or dosing pump.

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        - Installation
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        - FAQ's
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        - Spec Sheet

25BDF1HP-7 BDF Series Specifications Summary

Outputs @ 60Hz
Gallons per day: 0.3
Liters per day: 1.1
Ounces per hour: 0.06 to 1.26
Milliliter per hour: 2 to 39

Discharge Pressure
26-100 psi (1.7-6.9 bar)

120V 60Hz

12 rpm; 1/30 HP

Suction Lift
25' (7.6 m)

Maximum Operating Temperature
125° F (52° C)

Amp Draw

Dimensions (l x w x h)
10.1 x 7.0 x 6.1 in
(25.7 x 17.8 x 15.5 cm)

Shipping Weight
9 lbs (4 kg)

Materials of Construction
All Housings: Lexan® polycarbonate plastic
Pump tube & check valve duckbill: Santoprene® FDA approved
Suction/discharge tubing & ferrules (1/4"): LDPE polyethylene,
NSF/FDA approved
Tube fittings, connecting nuts, check valve fitting,
weighted strainer: Type 1 Rigid PVC-NSF listed
All fasteners: Stainless Steel
Lexan® is a registered trademark of General Electric.
Santoprene® is a registered trademark of Advanced Elastomer system

Agency listings

Accessories shipped with each pump
3 connecting nuts 1/4"
3 ferrules 1/4"
1 injection check valve
1 weighted strainer
1 20' roll of suction/discharge tubing 1/4"
1 installation manual