Unlike the smaller sizes, the 2 inch clamped Wilden plastic pumps are built in polypropylene only; PSG lists no PVDF P8 or PS8. There are 29 P8 builds and 12 PS8 builds, all with ANSI flanges, plus a single polypropylene T8 (Turbo-Flo).
A higher flow than the bolted pump
The figure that stands out is the P8’s flow. Build 08-14399 is listed at 218 gpm (825 L/min), more than the bolted P800 at 162 gpm (613 L/min) and more than the aluminum P8. The PS8 (08-14981) is listed at 170 gpm (644 L/min).
P8 (08-14399)
PS8 (08-14981)
Max flow
218 gpm (825 L/min)
170 gpm (644 L/min)
Dry suction lift
18.2 ft (5.5 m)
20.2 ft (6.2 m)
Max solids
0.25 in (6.4 mm)
0.25 in (6.4 mm)
Max air pressure
125 psi (8.6 bar)
125 psi (8.6 bar)
Temperature
40 to 175 °F (4 to 79 °C)
32 to 175 °F (0 to 79 °C)
Shipping weight
79 lb (36 kg)
79 lb (36 kg)
For the P8 the most common diaphragms are Santoprene, Buna-N, FKM and Neoprene. PSG lists no PTFE P8 builds in polypropylene; if your chemical needs PTFE at 2 inch, the PS8 (four PTFE builds) or the bolted P800 is the place to look.
Maximum flow is measured on water at full air pressure. Check the curve at your real discharge pressure before deciding between the two.
Example builds
Part No.
Build code
Elastomer
Material
08-14399
P8/PKAPP/FWS/TF/PTV
Santoprene
Polypropylene
08-11480
P8/PKAPP/BNS/BN/PBN
Buna-N
Polypropylene
08-0132
P8/PKAPP/NES/NE/PBN
Neoprene
Polypropylene
08-11634
P8/PKAPP/VTS/TF/PTV
FKM
Polypropylene
08-6984
P8/PKAPP/EPS/EP/PTV
EPDM
Polypropylene
08-15697
PS8/PKAPP/TSS/TF/PTV
PTFE
Polypropylene
08-15370
P8/PKAPP/ZSS/FS/PTV
Hytrel
Polypropylene
08-14980
PS8/PKAPP/ZGS/BN/PBN
Bunalast
Polypropylene
All 42 plastic builds are listed in our part number lookup. Polypropylene builds: P8 | PS8 | T8.
Genuine WILDEN P1500 and PS1500, the largest plastic Wilden diaphragm pumps: 3″ ANSI flanged, polypropylene or PVDF, up to 271 gpm (1026 L/min), 47 builds.
P1500: up to 195 gpm / 738 L/min. PS1500: up to 271 gpm / 1026 L/min (61.6 m³/h)
Flow Rate (m³/h)
P1500: max air 100 psi / 6.9 bar. PS1500: max air 125 psi / 8.6 bar
Head (m)
Compressed air; max 6.9 bar (100 psi) for P1500, 8.6 bar (125 psi) for PS1500
Genuine WILDEN P400 and PS400 1-1/2″ bolted plastic diaphragm pumps in polypropylene or PVDF: up to 120 gpm (454 L/min), solids 0.25 in (6.4 mm), 78 builds.
Genuine Wilden AODD Diaphragm Pumps & Spare Parts