Our Reverse Engineering Process

From Failed Component to Precision Replacement—How We Engineer Spare Parts for PFA-Lined Equipment

Reverse engineering isn't copying—it's understanding why a part works, why it fails, and how to make it better. At GFT9, our engineering team combines decades of PFA manufacturing experience with modern metrology and analysis tools to deliver spare parts that fit your equipment and address your specific operating challenges.

This page explains our process from initial consultation through delivery, so you know exactly what to expect when working with GFT9.

The Six-Step Process

Step 1: Initial Consultation

Every project starts with a conversation. We need to understand:

• What equipment requires spare parts?
• What problem are you trying to solve? (Cost? Lead time? Reliability?)
• What documentation do you have? (Part numbers, drawings, maintenance records?)
• What are your operating conditions? (Chemical, temperature, pressure?)

Contact us by phone, email, or through our inquiry form. For straightforward parts, we can often provide preliminary guidance immediately. Complex requirements may warrant a technical call with our engineers.

Timeline: Same day to 48 hours for initial response

Step 2: Sample Analysis

Physical samples tell us things drawings cannot. When you send us a worn or failed component, we:

• Document the part's condition with detailed photography
• Measure critical dimensions using CMM (coordinate measuring machine)
• Analyze wear patterns to identify failure modes
• Assess material condition and degradation

We return your sample after analysis unless otherwise requested.

For parts where samples aren't available, we work from OEM drawings, part numbers, or your field measurements.

What to send us:
• The actual part (we'll return it)
• OEM part number and pump/valve model if known
• Photos if shipping isn't practical
• Any dimensional data you've collected

Timeline: Analysis typically completed within 3-5 business days of receiving sample

Step 3: Engineering & Design

Based on our analysis, we develop manufacturing specifications. This phase includes:

Dimensional Design:
Creating precise 3D models and 2D manufacturing drawings that capture all critical features—bore diameters, seal surfaces, magnetic gaps, hydraulic passages.

Material Selection:
Recommending the optimal PFA grade, PTFE compound, or composite material for your specific chemical and temperature conditions. Options include:
• Virgin PFA (standard chemical resistance)
• PFA-L (enhanced permeation resistance)
• PTFE/carbon (improved wear properties)
• PFA with modified filler (application-specific)

Enhancement Opportunities:
If your parts are failing prematurely, we identify potential improvements:
• Wall thickness optimization
• Surface finish specification
• Tolerance tightening
• Material upgrades

Timeline: 3-7 days depending on complexity

Step 4: Tooling & Production

PFA components require specialized tooling—typically transfer or injection molds for lined parts, and precision CNC setups for machined components.

New Parts (First Order):
• Mold design and manufacture (2-4 weeks)
• First article production (1-2 weeks)
• Inspection and approval
• Series production

Established Parts (Repeat Orders, known Products):

• Production scheduling (immediate)
• Manufacturing (3-5 days typical)
• Inspection and packaging

Timeline: First order 6-8 weeks total; repeat orders 3-5 weeks standard, 3-14 days emergency

Step 5: Quality Verification

Every part we ship undergoes inspection:

Dimensional Verification:
• Critical dimensions checked against specifications
• CMM measurement reports available on request

Material Verification:
• PFA/PTFE material certification
• Lot traceability to raw material supplier

Functional Testing (where applicable):
• Pressure testing for containment components
• Fit verification using check fixtures

Documentation:
• Certificate of Conformance (standard)
• Material certificates EN 10204 3.1 (on request)
• Dimensional inspection reports (on request)

Timeline: 1-2 days added to production schedule

Step 6: Delivery & Follow-Up

Shipping:
• Professional packaging for component protection
• Express delivery options available
• International shipping to most destinations

Ongoing Relationship:

• Tooling retained for repeat orders
• Technical support for installation questions
• Feedback loop for continuous improvement
• Integration with your MRO procurement systems

Success Story

The Challenge

A pharmaceutical manufacturer in Germany operated multiple PFA-lined magnetic drive pumps from a major European supplier. The containment shells—the most expensive wear component—required replacement every 18-24 months, with OEM lead times of 14-16 weeks and pricing that consumed a significant portion of their maintenance budget.

The GFT9 Solution

The plant sent GFT9 a failed containment shell for analysis. Our engineers identified that the original wall thickness was optimized for general-purpose use, not the specific chemical mixture in this application. We designed a replacement with adjusted wall distribution—maintaining the original magnetic gap while improving permeation resistance in the highest-stress areas.

The Result

The reverse-engineered containment shells have now been in service for over 30 months—exceeding the OEM part life by more than 50%. The plant has since standardized on GFT9 spare parts for their entire pump fleet, with safety stock maintained at our facility for rapid deployment.

Customer details anonymized per confidentiality agreement