Blue-White - Chemical metering and fluid measurement solutions; chemical metering pumps, peristaltic pumps, diaphragm pumps, multi-diaphragm pumps, flow meters, flowmeters, variable area flow meters, paddlewheel flow meters, ultrasonic flow meters, engineered skid systems, single skid system, duplex skid system, triplex skid system, water analyzers...
Oswald

Municipal

MD3

Product Specifications

Performance for MD3S 

Maximum Flow/Pressure:

  • 34.6 gph at 140 PSI 
  • 37.9 gph at 90 PSI 
  • 48.2 gph at 40 PSI 
  • 52.6 gph at 0 PSI 
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Maximum speed 100% = 190 Strokes/Min 

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Fitting connections for MD3S pump 

“M” = 1/2” Male NPT (Straight and 90-degree elbow) 

“B” = 1/2” Hose Barb (Straight and 90-degree elbow) 

Maximum Viscosity: 1,000 Centipoise 

Maximum Suction Lift: 20 ft at sea level (14.7 atm psi) 

Electrical and Controls 

Electrical Power Requirement:  100 to 240VAC, 50/60Hz 

Motor: Brushless DC, 2,000:1 Turndown, Continuous Duty 

Power cord options available (6 feet in length): 

  • 115VAC 50/60HZ, NEMA 5/15 plug  (U.S.) 
  • 220VAC 50/60HZ ,CEE 7/V11 plug (EU) 
  • 230VAC 50/60HZ, NEMA 6/15 (U.S.) (ordered separately) 
  • 240VAC 50/60HZ, AS 3112 plug (Australia / New Zealand) (ordered separately) 
  • 230VAC 50/60HZ, BS 1363/A plug (UK) (ordered separately) 

Inputs: 

  • 4-20 mA – fully configurable  
  • Frequency / Pulse input – fully configurable 
  • Stop/Start Dry Contact Closure (Configurable for N.O. or N.C.) 
  • Auto Prime or Auto Stop – Secondary Contact Closure 
  • FVS (Flow Verification System) (Flow sensor provided by others) 

Outputs: 

  • 4-20 mA output – fully configurable  
  • Frequency output (Open collector)  
  • Four (4) Alarm Outputs – Programmable.  

Materials of Construction 

Non-wetted Components: 

  • Enclosure: Valox / 413 Aluminum (Polyester powder coated) – NEMA 4X (IP 66) 
  • Drive Enclosure: Valox (PBT) thermoplastic 
  • Permanently lubricated sealed motor shaft support ball bearing. 
  • Drive Enclosure Cover: Polycarbonate 
  • Cover Screws: 300 Series stainless steel 
  • Pump Head Cover: 316 Stainless Steel 
  • Motor Shaft: Chrome-plated steel 
  • DFD System Sensor pins: Hastelloy C-276 
  • Power Cord: 3 conductor, SJTW-A water-resistant 
  • Mounting Brackets and Hardware: 316 Stainless steel 

Wetted Components: 

  • Pump Head: PVDF 
  • Adapter Connections: PVDF 
  • Valve Cartridges: PVDF 
  • Valve Balls: Ceramic (optional PTFE) 
  • Elastomers: TFE/P (optional EP) 
  • Static Seals: TFE/P (optional EP) 
  • Diaphragm: DiaFlex® (optional Flex-A-Prene®) 

Diaphragm  Options 

DiaFlex® Diaphragm – This material consists of a natural PVDF flexible single-layer design that is compatible with most acids and bases.  DiaFlex® is not compatible with sodium hydroxide or ammonia. 

Flex-A-Prene® Diaphragm – An excellent material for most water treatment applications. Chemically resistant to 50% sodium hydroxide and many others. 

Dimensions and Weights 

  • Maximum Overall Dimensions: 16.125”W x 16.3”H x 14.1”D (40.9W x 41.4H x 35.9D cm) 
  • Product Weight: 40 lb. (18 Kg) 
  • Shipping Weight : 48 lb. (22 Kg) 

Agency Listings 

  • CE  
  • cETLus 
  • RoHS Compliant 
  • NSF 61 Listed 
  • NEMA 4X 

FAQs

Frequently Asked Questions

MD3S Specifications

  • What is maximum fluid viscosity this pump can handle?

    1,000 Centipoise

  • What display languages are available?

    English, Spanish, French or German.

  • What is max suction lift?

    23 ft. Water, 0 psig (7 m, 0 bar)

  • What are the Agency Listings for this pump?

    NSF/ANSI 61, CE, cETLus, RoHS

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