P4 Clamped Plastic Pump

The Wilden P4 Clamped Plastic Pump is a 38 mm (1½-inch) air-operated double-diaphragm pump for chemical transfer and demanding industrial duties across India. Moreover, its polypropylene or PVDF wetted construction, rotatable flanged connections and easily serviced clamp-band assembly support reliable operation, flexible installation and reduced maintenance time.

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Product Description

Wilden P4 Clamped Plastic Pump for Chemical Transfer

The Wilden P4 Clamped Plastic Pump is a 38 mm (1½-inch) air-operated double-diaphragm pump designed for chemical transfer and demanding industrial applications. Its polypropylene or PVDF wetted housing provides corrosion resistance for many compatible process liquids.

Moreover, the clamp-band construction gives technicians rapid access to internal components. Consequently, this plastic AODD pump combines dependable fluid handling with straightforward inspection and maintenance.

Wilden P4 Pump Flow and Pressure

Maximum published flow varies according to the selected diaphragm:

  • Rubber: Up to 348 lpm
  • TPE: Up to 354 lpm
  • Full-Stroke PTFE: Up to 352 lpm
  • Reduced-Stroke PTFE: Up to 261 lpm

Maximum discharge pressure reaches 8.6 bar or 125 psi.

However, actual output depends on compressed-air volume, discharge pressure, liquid viscosity, suction conditions and system resistance. Therefore, users should select the P4 diaphragm pump from its performance curve rather than relying only on the maximum flow figure.

Key Features and Benefits

The Wilden Pro-Flo plastic pump provides:

  • 38 mm or 1½-inch liquid connections
  • ½-inch FNPT compressed-air inlet
  • Maximum flow up to 354 lpm
  • Maximum pressure of 8.6 bar
  • Solids passage up to 4.8 mm
  • DIN or ANSI flanged connections
  • Polypropylene or PVDF wetted housings
  • Rotatable inlet and discharge manifolds
  • Rubber, TPE and PTFE diaphragm options
  • Clamp bands for faster servicing
  • Lube-free pneumatic operation
  • Simple installation and maintenance

Together, these features make the Wilden P4 Clamped Plastic Pump suitable for chemical transfer, unloading, circulation and compatible liquids containing suspended particles.

Pro-Flo Clamped Plastic Pump Design

The P4 chemical pump uses clamp bands to secure the liquid chambers, manifolds and centre section. Consequently, technicians can dismantle and reassemble the pump using a single tool.

Moreover, rapid access to diaphragms, valve balls and valve seats can reduce planned maintenance time. Therefore, the clamped plastic pump suits facilities where regular inspection, cleaning and quick servicing are important.

However, the suitability of clamped construction should be assessed according to the chemical risk, containment requirements and maintenance frequency.

Polypropylene and PVDF Construction

The Wilden P4 Clamped Plastic Pump is available with polypropylene or PVDF wetted housings.

Polypropylene suits many compatible acids, alkalis, treatment chemicals and industrial cleaning liquids. Alternatively, PVDF provides different chemical and temperature resistance for selected aggressive fluids.

However, neither material is suitable for every chemical. Therefore, users must verify the precise concentration, operating temperature and complete liquid composition before selecting the P4 pump.

Diaphragm and Elastomer Options

The P4 plastic diaphragm pump supports:

  • Rubber diaphragms
  • TPE diaphragms
  • Full-Stroke PTFE diaphragms
  • Reduced-Stroke PTFE diaphragms

Available elastomer materials may include:

  • Buna-N
  • EPDM
  • FKM
  • Neoprene
  • PTFE
  • Polyurethane
  • Saniflex
  • Wil-Flex

Each material provides different chemical, temperature, flexibility and abrasion resistance. Consequently, the diaphragms, valve balls, valve seats and seals should all match the transferred liquid and operating conditions.

Flanged P4 Pump Connections

The Wilden P4 Clamped Plastic Pump uses 1½-inch DIN or ANSI flanged inlet and discharge connections.

Moreover, both manifolds are rotatable. Therefore, installers can adjust their positions to match the available process pipework and installation layout.

Flanged connections also support secure integration with industrial pipelines. However, users should confirm the flange standard, pressure rating, gasket material and piping arrangement before ordering.

Solids Handling and Suction Performance

The P4 AODD pump can pass compatible solids up to 4.8 mm or 3/16 inch. As a result, it may handle selected liquids containing suspended particles.

Maximum published dry suction lift reaches:

  • Rubber: Up to 4.88 metres
  • TPE: Up to 3.96 metres
  • Full-Stroke PTFE: Up to 4.7 metres
  • Reduced-Stroke PTFE: Up to 3.05 metres

Meanwhile, wet suction lift reaches up to approximately 9.3 metres.

However, liquid viscosity, elevation, inlet-pipe resistance, air pressure and operating speed affect actual performance. Therefore, solids-heavy or difficult-suction applications require a detailed technical review.

Wilden P4 Applications in India

The Wilden P4 Clamped Plastic Pump may support applications across India such as:

  • Chemical processing
  • Acid and alkaline transfer
  • Water and wastewater treatment
  • Tank and container unloading
  • Paint and coating production
  • Industrial cleaning systems
  • Adhesives and sealants
  • Corrosive wastewater transfer
  • Filtration circulation
  • General industrial fluid transfer

For example, a polypropylene P4 pump may suit compatible general chemicals. Alternatively, a PVDF configuration may support selected aggressive fluids after a complete material-compatibility review.

Moreover, operators can regulate the transfer rate by adjusting the compressed-air supply.

Selecting the Correct Wilden P4 Pump

Correct selection depends on:

  • Required flow and discharge pressure
  • Chemical name and concentration
  • Operating temperature
  • Liquid viscosity
  • Solids size and concentration
  • Polypropylene or PVDF housing
  • Diaphragm and valve materials
  • DIN or ANSI flange standard
  • Suction conditions
  • Available compressed-air pressure and volume
  • Required maintenance frequency

Therefore, users should configure the Wilden P4 Clamped Plastic Pump around the complete hydraulic and chemical duty.

Otherwise, incompatible materials may cause premature wear. Similarly, insufficient compressed-air capacity or unsuitable suction conditions may reduce flow, efficiency and component life.

Why Choose the Wilden Pro-Flo P4?

The Wilden Pro-Flo P4 combines corrosion-resistant thermoplastic construction with quick clamp-band servicing and dependable lube-free pneumatic operation.

Moreover, its rotatable manifolds, strong flow and broad diaphragm selection support varied industrial requirements. Consequently, this 1½-inch plastic AODD pump provides a practical solution for facilities across India requiring reliable chemical transfer and simplified maintenance.

Product Enquiries in India

The Wilden P4 Clamped Plastic Pump is presented through Pumps Bharat for chemical processing, water treatment, coatings, industrial cleaning, filtration, container unloading and general fluid-transfer applications across India.

When submitting an enquiry, please provide the liquid, concentration, operating temperature, required flow, discharge pressure, solids content, flange standard and available compressed-air supply. With this information, the available P4 housing, diaphragm and valve configurations can be evaluated against the application requirements.

AIR INLET
  • 1/2″ FNPT
LIQUID INLET
  • 38 mm (1-1/2″)
LIQUID DISCHARGE
  • 38 mm (1-1/2″)
CONNECTION TYPE
  • DIN/ANSI (Flanged)
MAX SUCTION LIFT CAPABILITY
  • Rubber – 4.88 m (16′) Dry, 7.92 m (26′) Wet
  • TPE – 3.96 m (13′) Dry, 7.92 m (26′) Wet
  • Full-Stroke PTFE – 4.7 m (15.3′) Dry, 9.3 m (30.6′) Wet
  • Reduced-Stroke PTFE – 3.05 m (10′) Dry, 7.47 m (24.5′) Wet

MAX FLOW RATE
  • Rubber – 348 lpm (92 gpm)
  • TPE – 354 lpm (94 gpm)
  • Full-Stroke PTFE – 352 lpm (92.9 gpm)
  • Reduced-Stroke PTFE – 261 lpm (69 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 4.8 mm (3/16”)
DISPLACEMENT PER STROKE *
  • Rubber – 1.19 L (0.314 gal)
  • TPE – 1.18 L (0.311 gal)
  • Full-Stroke PTFE – 1.0 L (0.27 gal)
  • Reduced-Stroke PTFE – 0.53 L (0.139 gal)
  • * 1 cycle = 2 strokes

When Jim Wilden first added a plastic pump series to his product portfolio, he designed it with what he knew best: a clamped pump. Incorporating the same benefits as a clamped metal pump, these plastic versions offer a simple, rugged design that is ideally suited for chemical applications. Engineered with ease of maintenance in mind, clamped plastic pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden’s clamped plastic pumps have pumped billions of gallons of fluid on an annual basis.

  • DIN and ANSI flanged inlet/discharge liquid connections
  • Rotatable inlet and discharge for flexibility

  • Decades of proven performance
  • Clamped connections for faster maintenance
  • Low cost
  • Simple installation
  • Ease of operation and maintenance

CE Mark (Conformité Européene – European Conformity)

Wilden Pump & Engineering LLC has met the criteria for placing the CE mark on our product line. On December 3, 1999, Wilden fully self-certified its product line by meeting all the regulations of the Machinery and PED (Pressure Equipment) Directives. Every pump manufactured by Wilden will now receive the CE mark. Each pump box will also include a Safety Supplement manual in the eleven official languages of the European Community. This CE mark certification is indicative of Wilden’s pledge to providing our distributor network with all the sales tools necessary to excel in a global economy.