FWS 4.5" PLUNGER
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FWS 4.5" PLUNGER

The FWS 4.5-Inch Plunger is a replacement component for compatible oilfield reciprocating pumps used in high-pressure fluid pumping operations. With a nominal plunger diameter of 4.5 inches (114.3 mm), it is designed to operate with the appropriate fluid-end packing and sealing assembly. Final dimensions, material, surface treatment, and pump compatibility must be verified against the required specification.

Application - Oilfield reciprocating pump maintenance - High-pressure fluid pumping - Compatible fracturing and well-service pump systems - Replacement of worn or damaged plungers - Pump overhaul and spare-parts inventory - Oilfield equipment maintenance and refurbishment

Compatible Models

For compatible FWS-designated pump configurations subject to confirmation of the exact equipment model and original part number. Before confirming compatibility verify the plunger's overall length diameter tolerance end connections surface treatment packing arrangement +5 more

Technical Specifications

ParameterSpecification
Product NameFWS 4.5-Inch Plunger
Product CategoryOilfield Pump Parts
Component TypeReciprocating Pump Plunger
Nominal Diameter4.5 in (114.3 mm)
Overall LengthTo be confirmed
Base MaterialTo be confirmed
Surface TreatmentTo be confirmed
Surface HardnessSubject to material and coating specification
Surface FinishAccording to approved drawing
Dimensional ToleranceTo be confirmed
Packing CompatibilityMust match the specified fluid-end assembly
Pump ModelFWS designation; exact model to be verified
Working PressureDependent on the pump and complete assembly
InspectionDimensional and material inspection as agreed
ApplicationCompatible oilfield reciprocating pumping systems

Note: Only the nominal diameter is indicated by the product name. The remaining specifications must be verified with the supplier or original technical documentation.

Application- Oilfield reciprocating pump maintenance - High-pressure fluid pumping - Compatible fracturing and well-service pump systems - Replacement of worn or damaged plungers - Pump overhaul and spare-parts inventory - Oilfield equipment maintenance and refurbishment

Compatible Models

This FWS 4.5" PLUNGER is designed as a direct replacement for the following machine models and series:

For compatible FWS-designated pump configurations subject to confirmation of the exact equipment model and original part number. Before confirming compatibility verify the plunger's overall length diameter tolerance end connections surface treatment packing arrangement and operating requirements. Do not assume compatibility with SPM QWS TWS or other pump series solely because the nominal diameter is 4.5 inches.

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Description

FWS 4.5-Inch Plunger for Fracturing Pumps

Product Overview

The FWS 4.5-Inch Plunger is an oilfield pump replacement component used in compatible reciprocating pumping equipment. The plunger moves back and forth within the fluid-end assembly to displace fluid during each pumping cycle.

Plunger performance depends on dimensional accuracy, surface condition, wear resistance, and compatibility with the packing system. Correct component selection helps maintain sealing performance and supports reliable operation in demanding oilfield environments.

Key Features

  • 4.5-inch nominal diameter: Equivalent to 114.3 mm.

  • Precision-machined working surface: Finished according to the applicable drawing and sealing requirements.

  • Replacement component: Available for evaluation against the original part number or sample.

  • Packing-system compatibility: Must match the specified packing, seals, and fluid-end arrangement.

  • Application-specific construction: Base material and surface treatment depend on the confirmed product specification.

Applications

The plunger is intended for compatible oilfield reciprocating pumps used in high-pressure fluid pumping, well servicing, and related operations. The exact application depends on the pump model and approved operating parameters.

Ordering Information

To confirm the correct replacement, please provide the original part number, pump manufacturer and model, plunger dimensions, material or coating requirements, and any available drawing or photograph.

The designation FWS 4.5-inch alone is insufficient to establish interchangeability with a specific pump. Confirm all critical dimensions and specifications before ordering.

Frequently Asked Questions

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