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WILDEN XPS420 or XPS430? Threaded vs Flanged 1-1/2″ Pumps — Genuine Wilden AODD Diaphragm Pumps & Spare Parts
Genuine Wilden AODD Diaphragm Pumps & Spare Parts

WILDEN XPS420 or XPS430? Threaded vs Flanged 1-1/2″ Pumps

Model: WILDEN XPS420 (NPT threaded) / XPS430 (ANSI flanged), Pro-Flo SHIFT FIT Series

Genuine WILDEN XPS420 (NPT) and XPS430 (ANSI flanged): the same 1-1/2″ bolted Pro-Flo SHIFT FIT aluminum pump, up to 132 gpm (500 L/min). Which one to order.

Specifications
Flow RateUp to 132 gpm / 500 L/min (30.0 m³/h)
HeadMax operating pressure 125 psi / 8.6 bar
PowerCompressed air, max 8.6 bar (125 psi)
Inlet / Outlet Diameter1-1/2" inlet / 1-1/2" outlet; XPS420 NPT, XPS430 ANSI flanged
MaterialAluminum wetted path and air side; Santoprene, PTFE, Bunalast, Buna-N, Hytrel, FKM, EPDM, Neoprene or Polyurethane elastomers

Product Overview

Short answer: order the one that matches your pipework. The XPS420 has NPT threads and the XPS430 has ANSI flanges, and that is the only real difference. Same bolted body, same Pro-Flo SHIFT FIT air system, same performance.

Wilden rates both at 132 gpm (500 L/min) and 125 psi (8.6 bar), with solids up to 1/4 inch and 19.5 ft (5.9 m) dry suction lift on the Buna-N builds. The flanged pump is a little heavier, about 62 lb (28 kg) against 56 lb (25 kg).

If you are comparing with the clamped XPS4, the flow difference is large for the same port size: 132 gpm against 82. That is often the reason people move to the bolted frame.

One practical note: many XPS420 codes end in /0651, a factory option package. Quote the whole code when you reorder. PSG lists 39 aluminum XPS420 builds and 26 XPS430 builds, with Santoprene the most common elastomer across both.

Example builds

Part No.Build codeElastomerConnection
04-13798-RXPS430/AZAAA/WWL/WF/WFSantopreneFlanged
04-13561-RXPS430/AAAAA/TWS/TF/ATFPTFEFlanged
04-14491-RXPS430/AZAAA/BLL/BN/BNBunalastFlanged
04-13560XPS430/AAAAA/BNS/BN/BNBuna-NFlanged
04-14413XPS430/AAAAA/ZSS/FS/FSHytrelFlanged
04-13940XPS430/AAAAA/VTS/VT/VTFKMFlanged
04-13664XPS430/AAAAA/EPS/EP/EPEPDMFlanged
04-13577XPS430/AAAAA/NES/NE/NENeopreneFlanged

Search the 65 aluminum XPS420 and XPS430 builds: https://www.haquanpump.com/wilden-aodd-pumps/part-numbers?q=XPS420  |  https://www.haquanpump.com/wilden-aodd-pumps/part-numbers?q=XPS430

Typical Applications

  • bulk solvent and fuel transfer
  • paint circulation
  • tanker unloading
  • high-flow process transfer

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