1PCS USED AMAT 3870-03651 CTI 8039145G002 () #U1055D YGApplied Materials 3870-03651 VALVE CHECK RETURN ADPTR HE FL1PCS USED AMAT 3870-03651 CTI 8039145G002 () #U1055D YG1PCS USED AMAT 3870-03651 CTI 8039145G002 (by DHL or Fedex) #U1055D YGApplied Materials Manifold Chk Valve AMAT 3870-03651Applied Materials Manifold Chk Valve AMAT 3870-03651Applied Materials Manifold Chk Valve AMAT 3870-03651Applied Materials Manifold Chk Valve AMAT 3870-03651APPLIED MATERIALS CHECK VALVE RETURN ADAPTER HE AMAT 3870-03651APPLIED MATERIALS CHECK VALVE RETURN ADAPTER HE AMAT 3870-03651APPLIED MATERIALS CHECK VALVE RETURN ADAPTER HE AMAT 3870-03651APPLIED MATERIALS CHECK VALVE RETURN ADAPTER HE AMAT 3870-036517661 APPLIED MATERIALS VLV CHECK RETURN ADAPTER HE FLOW 1 WAY 3870-036517661 APPLIED MATERIALS VLV CHECK RETURN ADAPTER HE FLOW 1 WAY 3870-036517661 APPLIED MATERIAL VALVE CHECK RETURN ADAPTER HE FLOW 1 WAY, CTI 8 3870-03651AMAT 3870-03651 Valve Check Return Adapter HE Flow 1 Way, CTI 8039145G002 416576Applied Materials AMAT Valve 3870-03651 220 PSIGApplied Materials AMAT Valve 3870-03651 220 PSIGApplied Materials AMAT Valve 3870-03651 220 PSIGApplied Materials AMAT Valve 3870-03651 220 PSIGApplied Materials AMAT Valve 3870-03651 220 PSIG
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APPLIED MATERIALS 3870-03651

Helium Flow Check Valve Return Adapter

Market Availability & Pricing

Part number3870-03651
ManufacturerAPPLIED MATERIALS
Current availabilitySee listings below
Latest completed listing with reported sales1188.8 (currency not captured) — public listing price; reported sold quantity is not a verified transaction
Vacuum › Valves & Fittings › Check Valves
Helium Flow Check Valve Return Adapter
APPLIED MATERIALS3870-03651Check valve return adapter
Product description
One-way helium-flow check/return valve adapter assembly, CTI 8039145G002 context, for Applied Materials equipment.
Specifications and identifiers
identified features
Valve functionCheck/return valve adapter
One-way flow control component.
Flow contextHE flow
Likely helium-flow context; confirm with part markings and plumbing location.
Associated identifierCTI 8039145G002 referenced
Associated vendor/alternate part identifier appears in evidence.
Applications
helium flow circuitsreturn manifoldsvacuum/gas support plumbinghelium return flow controlvacuum support plumbingmanifold check-valve replacement
How it works

A one-way check/return valve adapter used to control helium or process-fluid return flow.

Check valves prevent reverse flow and protect subsystems such as cooling, helium backside, or vacuum-related gas circuits.

Technical guide
valve_body

Valve/adapter body material is not fully confirmed from the provided evidence.

check_valve

Allows flow in one direction and restricts reverse flow.

CTI
Referenced vendor/associated part context for one source.
HE
Likely helium in this context, but exact usage should be verified.
What to verify before purchase
  • Verify CTI identifier and AMAT part label.
  • Confirm flow direction, fittings, and seal type.
  • Confirm whether HE means helium for the installed system.
Confirm with the seller
  • Exact pressure rating, fitting sizes, and wetted materials are not confirmed.

Product reference only. Confirm fitment, revision, included components, and specifications before purchase.

Documentation

No public documents were listed for this part when captured.

Available Listings

Prices and availability may change. Confirm details with the seller.

1PCS USED AMAT 3870-03651 CTI 8039145G002 () #U1055D YG

1PCS USED AMAT 3870-03651 CTI 8039145G002 () #U1055D YG

USD 1145.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
CN
Condition: Used
Listed: Jul 17, 2025 14:01 UTC
Estimated remaining at check: 2
Estimated sold at check: 0

eBay response captured — Checked Oct 12, 2026 16:22 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

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Applied Materials 3870-03651 VALVE CHECK RETURN ADPTR HE FL

Applied Materials 3870-03651 VALVE CHECK RETURN ADPTR HE FL

USD 150.0000

Observed public listing price, not an accepted sale amount.

Observed active at check time
KR
Condition: NEW
Listed: Jul 7, 2023 09:00 UTC
End recorded: Dec 7, 2024 07:45 UTC
Estimated remaining at check: 1
Estimated sold at check: 0

eBay response captured — Checked Oct 2, 2026 16:13 UTC

Availability has not been rechecked; current availability is unknown.

Buy It Now

View on eBay

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