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Dayton stainless steel hand drum pump with spout and bung adapter

Dayton

Dayton 4HA31 Hand Drum Pump Stainless Steel 9/16"OD trap

SKU CH-3NEY-P8WF9 MPN 4HA31

Stainless steel hand drum pump with PVDF piston and PTFE seals for solvents and photographic chemicals, includes bung adapter and spout

  • TypeDrain Components
  • Self-priming design starts flow without manual effort
  • PVDF piston and PTFE seals resist harsh chemicals
  • Polypropylene bung adapter fits drums, pails and buckets
  • Suited for photographic chemicals and solvents
  • Includes a spout for controlled dispensing

Self-Priming Hand Drum Pump

The Dayton 4HA31 is a new hand-operated drum pump built from stainless steel with a 9/16 inch OD spout. It self-primes for immediate liquid transfer without external priming steps. A PVDF piston and PTFE seals provide chemical resistance for demanding fluids. The pump includes a polypropylene bung adapter and spout for secure container mounting.

Chemical Transfer for Buckets and Drums

This pump suits operators moving photographic chemicals or solvents from buckets, drums or pails. It is not suited for metered dispensing because the unit has no metering function. Buyers who need an included discharge hose or nozzle should look elsewhere as neither is supplied. Workers requiring powered operation must choose a different pump type.

PVDF Piston with PTFE Seals

The piston uses PVDF and the seals use PTFE to withstand aggressive chemical exposure during transfer. These materials determine whether the pump survives the specific fluids in your process. Verify compatibility with your exact chemical formulation before purchase.

Highlights

  • Self-priming design starts flow without manual effort
  • PVDF piston and PTFE seals resist harsh chemicals
  • Polypropylene bung adapter fits drums, pails and buckets
  • Suited for photographic chemicals and solvents
  • Includes a spout for controlled dispensing

Specifications

TypeDrain Components
BrandDayton
Model4HA31

Questions about this item

How do I install the 4HA31 pump on a drum and what step is often missed?

Screw the polypropylene bung adapter into the drum opening, insert the pump tube, and tighten the adapter — the step often missed is securing the adapter firmly so the pump seals and self-primes.

Which parts of the 4HA31 will need replacement after extended use?

The PVDF piston and PTFE seals wear with solvent exposure; replace them when pumping action weakens or fluid bypasses the piston.

What limit appears first during sustained pumping with the 4HA31?

Operator fatigue from continuous hand stroking limits output before the pump mechanism itself overheats or binds.

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