P4 Features
Featuring the original air-operated double-diaphragm pump design by Jim Wilden, clamped metal pumps offer a simple, rugged design for general industrial applications. Designed with ease of maintenance in mind, clamped 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 pumps have pumped billions of gallons of fluid on an annual basis.
- NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
- Decades of proven performance
- Clamped connections for faster maintenance
- Low cost
- Simple installation
- Ease of operation and maintenance
Dimensions
Note: Dimensions vary by material and connection. For additional information, please refer to the P4 Metal Manual.
Flow Curve – TPE-Fitted
Note: Additional performance curves can be found in the P4 Metal Manual.
Specifications
Air Inlet
1/2" FNPT
Liquid Inlet
38 mm (1-1/2")
Liquid Discharge
32 mm (1-1/4")
Connection Type
NPT/BSPT (Threaded)Max Pressure
8.60 bar
(125.00 psi)
Max Diameter Solids
4.80 mm
(3/16")
Max Suction Lift Capability
Rubber:
5.80m
(19.00') Dry,
8.00m
(26.00') Wet
TPE:
5.20m
(17.00') Dry,
8.80m
(29.00') Wet
Full-Stroke PTFE:
6.40m
(21.00') Dry,
9.30m
(30.60') Wet
Reduced-Stroke PTFE:
3.70m
(12.00') Dry,
8.50m
(28.00') Wet
Ultra-Flex™:
5.20m
(17.00') Dry,
8.50m
(28.00') Wet
Max Flow Rate
Rubber:
288.00 lpm
(76.00 gpm)
TPE:
307.00 lpm
(81.00 gpm)
Full-Stroke PTFE:
330.00 lpm
(87.20 gpm)
Reduced-Stroke PTFE:
295.00 lpm
(78.00 gpm)
Ultra-Flex™:
269.00 lpm
(71.00 gpm)
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
(0.2 gal)
Wetted Housings
| Material | Ship Wt |
|---|---|
| Aluminum | 13.00 kg (29.00 lb) |
| Stainless Steel | 20.00 kg (45.00 lb) |
| Cast Iron | 22.00 kg (49.00 lb) |
| Alloy C | 23.00 kg (51.00 lb) |
Non-Wetted Housings
| Description | Material |
|---|---|
| Center Section | Polypropylene, Acetal, Nickel-Plated |
| Air Valve | Polypropylene, Acetal |
| Air Chamber | Aluminum, PFA-Coated, Acetal, Nickel-Plated, Stainless Steel, Halar-Coated |
Elastomer Options
| Material | Temperature Limits |
|---|---|
| Buna-N | -12.00°C to 82.00°C (10.00°F to 180.00°F) |
| EPDM | -51.00°C to 138.00°C (-60.00°F to 280.00°F) |
| FKM | -40.00°C to 177.00°C (-41.00°F to 350.00°F) |
| Neoprene | -18.00°C to 93.00°C (0.00°F to 200.00°F) |
| PTFE* | 4.00°C to 104.00°C (40.00°F to 220.00°F) |
| Polyurethane | -12.00°C to 66.00°C (10.00°F to 150.00°F) |
| Saniflex™ | -29.00°C to 104.00°C (-20.00°F to 220.00°F) |
| Wil-Flex™ | -40.00°C to 107.00°C (-40.00°F to 225.00°F) |
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only
Downloads
Brochures
Dimensional Drawings
Spec Sheets