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Not only are Wilden pumps the most cost-effective, reliable and energy-efficient solutions available, but our state-of-the-art air distribution systems (ADS) significantly increase positive displacement pump productivity by reducing air consumption and maintenance for the most energy-efficient AODD pump operation possible.

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Wilden® positive displacement air-operated double-diaphragm (AODD) pump solutions are leading the way in a host of industries and applications.

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P4 Pro-Flo 1.5 SS 28950

38 mm (1-1/2") Pro-Flo® Saniflo™ FDA Series Clamped Metal Pump P4

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 51 mm (2")
LIQUID DISCHARGE
  • 51 mm (2")
CONNECTION TYPE
  • Tri-Clamp®
MAX SUCTION LIFT CAPABILITY
  • Rubber – 5.8 m (19.0') Dry, 8.0 (26.0') Wet
  • TPE – 5.2 m (17.0') Dry, 8.8 m (29.0') Wet
  • Full-Stroke PTFE – 6.4 m (21.0') Dry, 9.3 m (30.6') Wet
  • Reduced-Stroke PTFE – 3.7 m (12') Dry, 8.5 m (28') Wet
  • Ultra-Flex™ – 5.2 m (17.0') Dry, 8.5 m (28.0') Wet
MAX FLOW RATE
  • Rubber – 288 lpm (76 gpm)
  • TPE – 307 lpm (81 gpm)
  • Full-Stroke PTFE – 330 lpm (87.2 gpm)
  • Reduced-Stroke PTFE – 295 lpm (78 gpm)
  • Ultra-Flex™ – 269 lpm (71 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 4.8 mm (3/16'')
DISPLACEMENT PER STROKE *
  • Rubber – 0.98 L (0.26 gal)
  • TPE – 1.1 L (0.29 gal)
  • Full-Stroke PTFE – 1.1 L (0.29 gal)
  • Reduced-Stroke PTFE – 0.53 L (0.14 gal)
  • Ultra-Flex™ – 0.76 L (0.20 gal)
  • * 1 cycle = 2 strokes
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  • EC-1935-LOGO
  • ce_logo
  • atex_logo

Features and Benefits

Saniflo™ FDA Series pumps are designed for standard food applications that don’t require the Hygienic™ Series (HS) design or clean-in-place (CIP) capability. They are well suited for sanitary applications moving high-acid, high-sugar and high-fat media. With simple installation and robust design, FDA pumps comply with FDA, CE, EC 1935/2004 and ATEX requirements.
  • Tri-Clamp® connections with wingnut clamped design
  • Quick breakdown/reassembly for cleaning
  • Shear sensitive
  • Robust durability
  • Straight flow-through design

Downloads

Spec Sheets

Model: P4 | Code: WIL-10183-T-02

Performance and Specifications

Dimensions

Dim-P4-38mm1.5-PFSF-FDA-MP

Note: Dimensions vary by material and connection. For additional information, please refer to the P4 Metal Manual.

Flow Curves – TPE-Fitted

Flo-P4-38mm1.5-PFSF-FDA-MP

Note: Additional performance curves can be found in the P4 Metal Manual.

AIR INLET
  • 13 mm (1/2")
LIQUID INLET
  • 51 mm (2")
LIQUID DISCHARGE
  • 51 mm (2")
CONNECTION TYPE
  • Tri-Clamp®
MAX FLOW RATE
  • Rubber – 288 lpm (76 gpm)
  • TPE – 307 lpm (81 gpm)
  • Full-Stroke PTFE – 330 lpm (87.2 gpm)
  • Reduced-Stroke PTFE – 295 lpm (78 gpm)
  • Ultra-Flex™ – 269 lpm (71 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 4.8 mm (3/16'')
MAX SUCTION LIFT CAPABILITY
  • Rubber – 5.8 m (19.0') Dry, 8.0 (26.0') Wet
  • TPE – 5.2 m (17.0') Dry, 8.8 m (29.0') Wet
  • Full-Stroke PTFE – 6.4 m (21.0') Dry, 9.3 m (30.6') Wet
  • Reduced-Stroke PTFE – 3.7 m (12') Dry, 8.5 m (28') Wet
  • Ultra-Flex™ – 5.2 m (17.0') Dry, 8.5 m (28.0') Wet
DISPLACEMENT PER STROKE *
  • Rubber – 0.98 L (0.26 gal)
  • TPE – 1.1 L (0.29 gal)
  • Full-Stroke PTFE – 1.1 L (0.29 gal)
  • Reduced-Stroke PTFE – 0.53 L (0.14 gal)
  • Ultra-Flex™ – 0.76 L (0.20 gal)
  • * 1 cycle = 2 strokes

Wetted Housings 

Material Ship Weight
Stainless Steel 20 kg (45 lb)

Non-Wetted Housings

Description Material
Center Block Polypropylene
Air Valve Polypropylene
Air Chamber Aluminum, PFA-Coated, Stainless Steel, Halar-Coated

Elastomer Options

Material Temperature Limits
Buna-N -12.2°C to 82.2°C (10°F to 180°F)
EPDM -51.1°C to 137.8°C (-60°F to 280°F)
FKM -40°C to 177°C (-40°F to 350°F)
PTFE* 4.4°C to 104.4°C (40°F to 220°F)
Saniflex™ -28.9°C to 104.4°C (20°F to 220°F)
Wil-Flex™ -40°C to 107.2°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only