D Series Pump 5HP 1-Phase 230V Medium Head - DMJ-172

$1,439.99

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Model # DMJ-172

By Sta-Rite


Details

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Model # DMJ-172

Product Description

Cast Iron Self-Priming Centrifugal Commercial Pool Pump

Especially designed for commercial and public swimming pools and spas, aquatic facilities, water parks and fountain applications where high performance and self-priming characteristics are desired. These self-priming, high performance pumps are available in high head and medium head models, providing a complete range of performance characteristics. Motors are open drip-proof, continuous duty rated 3450 RPM.

A self-priming, high performance pump for semi-commercial and commercial swimming pools and spas. D Series pumps are especially designed for commercial and public swimming pools and spas, aquatic facilities, water parks and fountain applications where high performance and selfpriming characteristics are desired. These centrifugal pumps are available in high head and medium head models with motors from 3-5 HP
to provide a complete range of performance characteristics. Motors are open drip-proof, continuous duty rated at 3450 RPM.

Standard Features:

  • Back pull-out design allows entire motor to be
    removed for servicing impeller, seal or motor
    without disturbing plumbing.
  • Suitable for outdoor installation.
  • Precision cast and machined bronze impeller is
    dynamically balanced for long seal life and quiet
    operation. Non-overloading.
  • 200 Volt models available.
  • 2", 21⁄2" or 3" suction port and 11⁄2", 2" or 21⁄2"
    discharge port.

Materials and Design:

Pump Body = Volute type, back pull-out design.

  • Port Size:
    • Single suction port: 2", 2.5" or 3" NPT on centerline
    • Discharge port: 1.5", 2" or 2.5" NPT on centerline
    • Winterizing drain port: 1/4" NPT
  • Material
    • Close-grained grey iron
  • Impeller
    • Silicon brass material; closed, non-overloading desing
  • Shaft Seal
    • Self-flushing, mechanical John Crane Type 2. Ceramic and carbon seal faces. Stainless steel, brass and Buna N spring bellows.

Hair and Lint Strainer

  • Material
    • Separate bolt-on Noryl body with plastic basket, Lexan lid, and stainless steel bolts.
  • Size
    • 6" ANSI 150 bolted flange suction and discharge ports.

Pump Maximum Limits

Liquid Temperature: 104º F
Ambient Air Temperature: 104º F

Motor

  • Frame Size
    • NEMA Series, JM construction
  • Shaft
    • Carbon steel inside a 300 Series stainless steel sealed removable shaft sleeve
  • Design
    • 3 or 5 HP, 3450 RPM, open drip-proof(unless other-wise specified), continuous duty rated. 40°C ambient
      maximum
  • Bearings
    • Permanently sealed ball type, pre-lubricated
  • Thermal Overload Protection
    • Single-phase motors: Automatic reset Three-phase motors: External thermal protection required

Maximum Limits

  • Liquid temperature: 200°F
  • Ambient air temperature: 104°F
  • Pressure: 75 psi
  • pH Range: 4.0-9.0

Product Specifications

Model:
DMJ-172
HP:
5 HP
Amps:
28 amp
Volts:
230 V
Phase:
Single
Head:
Medium Head
Port Size:
2-1/2 in.
Speed:
Single
Weight:
178 lbs.
Strainer:
Not Included
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?     Asked on 4/11/2016 by Douglas Owen

What is the difference between a high head or medium head pump? My data plate is missing and I do not know what I have.

A     Answered on 4/11/2016 by InyoPools Product Specialist Lennox H.

Hi Douglas, High head pump are design to push less water higher using more pressure verses medium head pumps are designed to push more water using less pressure so the water flow will not be pushed as high. If you can get us the impeller info we can find out which pump you have.

?     Asked on 6/5/2015 by alan

DMJ-172 pump Does this need pump to be greased or lubricated periodically?

A     Answered on 6/5/2015 by InyoPools Product Specialist Patrick P.

Hi Alan, The best thing you could do is every 3-5 years replace your DMJ-172 Shaft Seal this shown as key #10 in the Sta-Rite DMJ-172 Exploded Parts Breakdown.

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