Amat Amat Aptech 98 98105305 2Pw Fv4 Fv4 Diaphragm Valve 145 Psig — [SHORT_DESCRIPTION] (AMAT)

How Much Does AMAT APTech 98-98105305 2PW FV4 FV4 Diaphragm Valve 145 Psig NEW SEALED Cost in 2026?

As of June 2026, the AMAT APTech 98-98105305 2PW FV4 FV4 Diaphragm Valve 145 Psig is priced in the $800 range for a used, sealed unit in condition grade B. If you're looking for a refurbished version, expect to pay between $900–$1,000 from vendors like Ferrotec or Axus Technology, who often handle AMAT valve rework. A brand-new OEM unit from Applied Materials is typically unavailable and would cost between $1,500–$2,000 if sourced directly from a gray market or through a third-party supplier.

This part is commonly used in AMAT’s older process tools, and a failure can lead to downtime costs of $5,000–$10,000 per hour, depending on the fab. That’s why sourcing a used or refurbished unit is often the most cost-effective route. However, be cautious—units with more than 10,000 operating cycles or over 10 years old may not hold pressure and could fail in the field, leading to costly rework or process contamination.

AMAT APTech 98-98105305 2PW FV4 FV4 Diaphragm Valve 145 Psig NEW SEALED Specifications and Compatible Tools

The AMAT APTech 98-98105305 2PW FV4 FV4 Diaphragm Valve is a 2-port, normally closed valve rated for up to 145 psig. It typically operates with a 24VDC solenoid and is commonly used in gas delivery systems for semiconductor deposition and etch tools. These valves are often found in AMAT’s Centura, Reflexion, and P5000 platforms from the early to mid-2000s.

The valve is typically rated for 10,000–15,000 operating cycles before requiring inspection or replacement. Units over 15 years old may show signs of diaphragm fatigue, especially if they were used in high-cycle applications. This part is not compatible with newer AMAT platforms like the Endura or Producer series, which use different valve architectures such as the 98-98105306. Using an incompatible valve in these systems can lead to improper gas flow and process instability, potentially resulting in $10,000+ in lost wafers.

What to Check Before Buying a Used AMAT APTech 98-98105305 2PW FV4 FV4 Diaphragm Valve 145 Psig NEW SEALED in 2026

1. Verify the production year – Units made before 2010 may have thinner diaphragm materials and are more prone to failure. Reject if the unit is over 15 years old.

2. Check operating cycles – Use a valve cycle counter or ask the seller for maintenance logs. Reject if the unit has exceeded 12,000 cycles.

3. Perform a pressure test – Use a bench test with a regulated 145 psig gas source and a vacuum gauge. The valve should hold pressure for at least 10 minutes without a drop.

4. Inspect the solenoid coil – Measure resistance with a multimeter. A reading outside 1.5–2.5 ohms may indicate a failed or failing coil.

5. Look for signs of diaphragm wear – Visually inspect the diaphragm for cracks or discoloration. Reject if any are found.

Buying a bad unit can lead to immediate failure in the field, causing $5,000–$7,000 in downtime and rework costs. Always request a full test report and maintenance history before finalizing a purchase.

FAQ

Q: Can I use the 98-98105305 in a newer AMAT tool like the Producer series?
A: No. The 98-98105305 is not compatible with newer AMAT platforms. The Producer series uses the 98-98105306, which has a different solenoid interface and pressure rating. Using the wrong part can lead to process instability and $10,000+ in lost wafers.

Q: Should I replace this valve every 5 years?
A: Not necessarily. Most units last 8–12 years if maintained and used under 10,000 cycles. However, if the unit is over 15 years old or has exceeded 12,000 cycles, replacement is strongly recommended to avoid failure.

Q: How much can I save by buying used vs. new?
A: You can save 40–60% by sourcing a used or refurbished unit. For example, a used unit at $800 vs. a new OEM unit at $1,500 is a 47% savings.

Q: What’s the difference between the 98-98105305 and the 98-98105306?
A: The 98-98105306 is used in newer AMAT tools and has a higher pressure rating (175 psig vs. 145 psig). It also uses a different solenoid coil and mounting bracket. They are not interchangeable.

Q: How long does a used 98-98105305 last after installation?
A: Typically 3–5 years, depending on cycle count and process conditions. Units with under 10,000 cycles and less than 12 years old can last up to 7 years before needing inspection.