WILDEN XPS1 vs P1: 1/2″ Aluminum AODD Pumps Compared

On paper the XPS1 and the P1 look almost the same: both are 1/2 inch clamped aluminum pumps with center ports and about 15 gpm of flow. The differences are in the air side, and they show up in the temperature range.

	P1 (Santoprene, 01-2677)	XPS1 (Santoprene, 01-11225-R)
Air system	Pro-Flo	Pro-Flo SHIFT
Air side material	Polypropylene	Aluminum
Max flow	15.4 gpm (58 L/min)	15.9 gpm (60 L/min)
Dry suction lift	17 ft (5.2 m)	18.7 ft (5.7 m)
Temperature range	32 to 175 °F (0 to 79 °C)	-40 to 225 °F (-40 to 107 °C)
Shipping weight	13 lb (5.9 kg)	13 lb (5.9 kg)

The wider temperature range is the main reason to choose the XPS1. With a Santoprene diaphragm, Wilden lists it from -40 to 225 °F, which covers outdoor sites in cold climates and warmer process liquids that a polypropylene air side cannot take. The PTFE build (01-11229-R) is rated 40 to 200 °F (4 to 93 °C), with 15.8 gpm and a dry lift of 14.2 ft (4.3 m).

Pro-Flo SHIFT is Wilden’s air distribution system designed to reduce air consumption. If air costs matter on your site, ask us for the curves of both pumps at your duty point and compare the air consumption directly.

There are 16 aluminum XPS1 builds, half of them with PTFE diaphragms.

Example builds

Part No.	Build code	Elastomer	Connection
01-11229-R	XPS1/AAAAA/TNU/TF/ATF	PTFE	Threaded
01-11225-R	XPS1/AAAAA/WFS/WF/AWF	Santoprene	Threaded
01-11341	XPS1/AAAAA/FSS/TF/AFS	Hytrel	Threaded
01-11285	XPS1/AAAAA/BNS/BN/SBN	Buna-N	Threaded
01-11221	XPS1/AAAAA/EPS/EP/AEP	EPDM	Threaded
01-11223	XPS1/AAAAA/VTS/VT/ATF	FKM	Threaded

All 16 aluminum XPS1 builds are in our part number lookup: https://www.haquanpump.com/wilden-aodd-pumps/part-numbers?q=XPS1