Gas Chromatography Solutions for Replacement Parts

We help you get the right valve for your GC application, quickly


Easily selecting the correct valve or replacement part shouldn’t be hard

When you need a replacement part, getting the right GC valve quickly can be challenging.

At AFP, we understand that time is of the essence and no one wants to waste time on searching for Gas Chromatography valves and parts online or on long lead times.

  • You need an easy solution to quickly find and order Gas Chromatography replacement parts and valves.
  • Valves and other replacement parts for your Gas Chromatography system should be available immediately for shipping.
  • Competitive pricing and cost effectiveness for valves for gc instruments is essential .

At AFP, we make it easy to shop replacement parts online. All valves, fittings, ferrules, and tubes are ready to ship directly to you with competitive prices.

If you need additional help finding the correct valve or replacement part, our sales representatives are ready to assist you.

Industry Leading High Performance Gas Chromatography Valves

Browse our complete family of Gas Chromatography Valves, including Diaphragm Valves, Rotary Valves, and Sample Stream Selection Valves, all engineered for today’s most demanding applications.


Gas Chromatography Injection & Switching Diaphragm Valves

AFP's GC Injection & Switching Diaphragm Valves are compact and performant with three different temperature grades, ambient to 100°C, 180°C, and 250°C.

Each Injection & Switching Diaphragm Valve is engineered with sealing integrity and optional purged valve features to ensure sample purity. Our patented GC diaphragm valves are designed with precise machined components, all made in-house with strict quality control. This creates a GC diaphragm valve with minimal opportunity for cross-port leaks for confident trace analysis.

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Gas Chromatography Sampling & Switching Rotary Valve

AFP’s GC Sampling & Switching Rotary Valves are engineered to maximize efficiency. The rotary valve’s double stopper design increases the reliability and lifespan of the valve, which reduces maintenance and downtime. Rotor options allow the valve to be used in any GC system with varying temperatures, covering applications from room temperature to maximum temperatures ranging from 225°C to 350°C. Coating options include advanced materials to combat corrosion and sulfur compounds absorption. Optional purged rotary valves ensure sample integrity for trace analysis.

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Sample Stream Selection Diaphragm Valve

AFP’s GC Sample Stream Selection Diaphragm Valves offer individual port control, continuous flow path, and no dead volume effects for efficient, reliable sample stream selection in your GC analysis. Purge features for the Sample Stream Selection Diaphragm Valves prevent any inboard contamination and ensure sample integrity. Other options include an electrical actuator, good for some portable GC or when actuation gas is not available, while keeping the same reliability.

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We make finding the right Gas Chromatography valve easy

Finding the right Gas Chromatography valve, fittings, or accessories that the end user is requesting should not be difficult; products also need to be available with a reasonable lead time and competitive pricing.

AFP makes searching online to procure replacement valves, fittings, or accessories for your GC system simple.

We have a variety of valves and other Gas Chromatography replacement parts such as fittings, ferrules, and tubing, all online and ready to ship directly to you.

Our knowledgeable sales representatives are readily available by phone or email if there are questions about which AFP Gas Chromatography product will best meet your requirements.

Our solutions include Gas Chromatography valves with the highest quality materials to improve functionality, increase reliability, and ensure longevity.

AFP has also integrated innovative features into its Gas Chromatography Rotary Valves and gas chromatography Diaphragm Valves and each valve option is clearly listed in our online store for ease and convenience.

Features include optional valve coatings such as Dursan® and SilcoNert 2000® to combat corrosion and sulfur compounds absorption.

Each of our coated valves are manufactured and tested with the coating before shipping to guarantee coating integrity and maximum performance.

Other options include a purge feature embedded directly into the valve to prevent impurities from getting inside the system, removing the need for an additional purge box or other purging processes.

Contact our experts today

to explore how our industry leading valves can elevate your Gas Chromatography performance and support your critical manufacturing processes.

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