ENERPAC P391 Hydraulic Hand Pump, Single Speed, 4.75 Inch Overall Width

Item: AD6MRA
Model: P391
Cross Ref: 46C558
10 In Stock.

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$1,161.81
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$1,045.63 /unit (ex. VAT)
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Specifications

Item Hydraulic Hand Pump
Connection Size 3/8"
Connection Type NPT
Cylinder Compatibility Single Acting
Dimension A 13 14/25"
Dimension B 21"
Dimension C 1 11/25"
Dimension D 3.93"
Dimension E 1.31"
Dimension H 20 14/25"
Dimension J 1.19"
Dimension L 7"
Dimension M 0.63"
Dimension N 4 3/4"
Displacement Per Stroke 1st Stage 0.151 cu. in.
Displacement Per Stroke 2nd Stage 0.15 cu. in.
Handle Material Fiberglass
Housing Material Steel
Includes Oil
Max. Flow Rate 0.151 cu. in./min.
Max. Handle Effort 85 lbs.
Max. Operating Pressure 10000 psi
Max. Pressure 1st Stage 10000 psi
Max. Pressure 2nd Stage 10000 psi
Number Of Stages 2
Oil Included Yes
Overall Height 7"
Overall Length 21"
Overall Width 4 4/5"
Piston Stroke 1"
Power Source Manual
Pressure Rating 1st Stage 10000 psi
Pump Material Steel
Reservoir Capacity 55 cu. in.
Reservoir Material Glass Filled Nylon
Speed Type Single Speed
Type Manual
Valve Operation Manual

Product Details

Enerpac P391 hydraulic hand pump is ideal for holding, lifting, bending, pulling and pushing heavy loads. It is used to apply pressure on objects in construction, manufacturing, maintenance & repair works by pressurising and moving hydraulic fluid.

Shipping Information

Height (cm) 17.78
Length (cm) 53.34
Width (cm) 12.7
HS Code 8413200000
Country Of Origin CN
Weight (kg) 4.365

Working Mechanism

  • Enerpac P391 hydraulic hand pump is operated manually by pumping a lever for generating hydraulic pressure. As the lever is pumped, a piston inside the pump cylinder compresses the hydraulic fluid, building up pressure.
  • This pressurised fluid is then directed to the connected hydraulic system or tool, providing the necessary force for various hydraulic applications.

Features

  • Enerpac P391 hydraulic hand pump has a non-conductive fibreglass handle with a handle lock facility for user safety.
  • This P391 Enerpac single-speed hydraulic hand pump requires minimal effort to move the handle and comes with a 3/8 inch NPT port for user convenience.
  • It features lightweight construction with a durable glass-filled nylon reservoir and nylon-encapsulated aluminium pump base for corrosion resistance and portability.
  • This Enerpac P-391 hydraulic pump is equipped with an internal pressure relief valve to provide overload protection.
  • It has oil capacities up to 55 cubic inches for powering a broad range of tools or cylinders.

Compatible Accessories

  • Enerpac GA45GC Gauge Adapter: This adapter is used with this Enerpac P391 hydraulic hand pump to enable easy connection of pressure gauges to the pump, allowing for accurate monitoring of hydraulic pressure during operations.
  • Enerpac HC9206: This 6 feet hose assembly is used with this Enerpac P391 hydraulic hand pump to provide a flexible and reliable connection between the pump and hydraulic tools or systems, allowing for efficient fluid transfer and operation.

Documentation

Frequently Asked Questions

What is the maximum operating pressure of this hand pump?

It offers a maximum operating pressure of 10000 psi.

What is the difference between NPT and UNF port sizes?

The NPT connection is based on thread deformation and have a metal-to-metal sealing design where the threads of the connectors themselves form together. Whereas, the UNF (Unified National Fine) threads on ports have fine spacing that makes them less prone to loosen when vibrating.

How do you fill Enerpac hand pump oil?

  • Remove the fill plug from the reservoir.
  • Fill the reservoir only to the level marked on the pump.
  • Make sure to use only an approved hydraulic fluid.

What will happen if there is air trapped in the hydraulic system?

When air contaminates a hydraulic fluid, the pump's inlet cavitation, aeration or foaming can happen. Aeration degrades the hydraulic fluid, resulting in damage to the components of the system (due to loss of lubrication), thereby causing burning and overheating of the seals.

Which variant of the hydraulic hand pumps offers the lowest pressure rating?

The brand's P18 hydraulic pump has the lowest pressure rating of 2850 psi and is available on Raptor Supplies.

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