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Dayton 4JMW6 centrifugal pump in 304 stainless steel, 1/3 hp, 1/2 inch discharge

Dayton

Dayton 4JMW6 Centrifugal Pump 304 Stainless 1/2in 1/3hp 21gpm

SKU CH-4PZZ-B2TE2 MPN 4JMW6

A centrifugal pump with a 304 stainless-steel housing and closed impeller delivers up to 21 gpm at 50 ft of head using a 1/3 hp single-phase motor

  • TypeDrain Components
  • 304 stainless housing resists corrosion for long service life
  • 1/3 hp motor delivers up to 21 gpm for strong flow
  • 50 ft maximum head handles tall vertical lifts
  • 22 gpm at 10 ft head shows efficient low-pressure output
  • 200 °F media temperature suits hot liquid transfer

Centrifugal pump in 304 stainless steel

This centrifugal pump uses a closed impeller made from 304 stainless steel and a matching 304 stainless steel housing. It runs on single-phase power with a 1/3 hp motor and has a 1/2 inch NPT discharge and a 3/4 inch NPT intake. The unit is rated for a maximum media temperature of 200 Degrees F and a maximum viscosity of 31 SUS.

Applications and limitations

The pump suits installations that require corrosion-resistant wetted parts and a flow rate up to 22 gpm at 10 ft of head or 21 gpm at maximum head. It is not suited for systems needing higher shut-off pressure than 150 psi or for fluids exceeding the stated temperature and viscosity limits.

Key sizing specification

The maximum flow rate of 21 gpm at 50 ft of head determines whether this pump matches the system curve. Verify that the required duty point falls at or below this head-flow combination before selecting the unit.

Highlights

  • 304 stainless housing resists corrosion for long service life
  • 1/3 hp motor delivers up to 21 gpm for strong flow
  • 50 ft maximum head handles tall vertical lifts
  • 22 gpm at 10 ft head shows efficient low-pressure output
  • 200 °F media temperature suits hot liquid transfer

Specifications

TypeDrain Components
BrandDayton
Model4JMW6

Questions about this item

What size NPT discharge piping must already be in place for the 1/2-inch outlet?

The pump has a 1/2-inch NPT discharge connection, so existing piping must match that thread size and type.

Can the closed 304 stainless impeller handle the same 31 SUS viscosity limit as the rest of the pump?

Yes, the impeller and housing are both 304 stainless steel and the pump's maximum viscosity rating is 31 SUS.

How do I confirm the pump is delivering its rated 21 gpm at 10 feet of head?

Measure flow at the discharge; the pump should produce up to 22 gpm at 10 feet of head under normal conditions.

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