What are the models of Wilden pneumatic diaphragm pump P series

P series complete model list

‌P025 (1/4 inch)‌

Diameter: 6 mm (media import/export)

Maximum flow rate: 16.7 LPM (4.4 GPM) under Teflon PTFE material

Applicable scenarios: small flow corrosive liquids, high viscosity media transmission, 

such as laboratory or fine chemical industry.

Material selection: polypropylene (PP), polyvinylidene fluoride (PVDF) shell ‌ .

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P1 (1/2 inch)‌

Flow range: Refer to P2/P4 to estimate approximately 150–250 LPM

Features: Food grade 316 stainless steel is optional and meets FDA certification ‌ .

‌P2 (1 inch)‌

Diameter: 25 mm

Maximum flow rate: 354 LPM (Teflon diaphragm)

Typical model example:

P2/KKPPP/TNU/TF/KTV/0040 (polypropylene shell)

P2/SSPPP/TSU/TF/STF/0070 (stainless steel housing)‌ 

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P4 (1-1/2 inches)‌

Diameter: 38 mm

Traffic: 354 LPM

Applicable fields: chemical industry, sewage treatment, can pass through a maximum 

particle diameter of 4.8 mm‌ .

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P8 (2 inches)‌

Diameter: 51 mm

Traffic: 591 LPM (156 GPM)

Material options: 316 stainless steel (food grade), polypropylene

Suction range: dry suction 7.0 m, wet suction 9.5 m‌ .

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P15 (4 inches)‌

Diameter: 102 mm

Traffic: Industry-leading 591 LPM (same as P8)

Pressure: Maximum operating pressure 8.6 Bar (125 PSI)‌ .