Description
Air Products DE-202S Displex Cold Head Ultek Cryo Pump AA-2047-17 Cryogenic
Closed-cycle refrigerator cold head and cryogenic pump assembly manufactured by Air Products. Designed for vacuum pumping and thermal management in laboratory and industrial applications.
Specifications & What's Included
- Model: DE-202S (AA-2047-17)
- Type: Closed-cycle refrigerator cold head / cryo pump
- Flange: Conflat (CF) bolt-circle base
- Gauge: Dual-scale Kelvin/PSIA pressure gauge
- Dimensions: 20 in × 10 in × 9 in
- Manufacturer: Air Products; OEM association: Perkin-Elmer Ultek
- Origin: United States
Applications
This cold head type was used in cryogenic vacuum systems for semiconductor processing, thin-film deposition, and research environments. Typical installations included Perkin-Elmer Ultek vacuum systems and compatible laboratory setups requiring low-temperature pumping capability and thermal conditioning.
Condition: For Parts or Not Working
This Air Products DE-202S Displex Cold Head / Ultek Cryo Pump assembly is being sold AS-IS for parts or repair. We were unable to test this unit, so no functionality can be confirmed or guaranteed. The stainless steel body and conflat flange base show general surface wear and discoloration consistent with lab use. The Kelvin/PSIA pressure gauge is present and appears intact. The helium line quick-connect fittings are present on the cold head upper body. The Ultek Cryo Pump label on the lower cylinder shows wear. Engraved markings on the flange base read P/N 361091C-G503 and indicate a 1975 manufacture date. Please view our full photo set carefully and contact us if you have any questions before purchasing.
This Air Products DE-202S Displex Cold Head / Ultek Cryo Pump assembly is being sold AS-IS for parts or repair. We were unable to test this unit, so no functionality can be confirmed or guaranteed. The stainless steel body and conflat flange base show general surface wear and discoloration consistent with lab use. The Kelvin/PSIA pressure gauge is present and appears intact. The helium line quick-connect fittings are present on the cold head upper body. The Ultek Cryo Pump label on the lower cylinder shows wear. Engraved markings on the flange base read P/N 361091C-G503 and indicate a 1975 manufacture date. Please view our full photo set carefully and contact us if you have any questions before purchasing.
Warranty Information
We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information
Brand: |
Air Products |
Model: |
DE-202S |
MPN: |
AA-2047-17 |
Secondary Model: |
DE 202 S |
SKU: |
35008 |
Type: |
Closed-Cycle Refrigerator Cold Head / Cryo Pump |
Condition: |
As-Is / For Parts or Not Working |
Seller Notes: |
Sold AS-IS for parts or repair; unable to test |
Associated Brand / OEM: |
Perkin-Elmer Ultek |
Series: |
Displex |
U.S. Patent: |
3,620,029 |
Gauge Type: |
Kelvin / PSIA dual-scale pressure gauge (USG) |
Flange Type: |
Conflat (CF) bolt-circle base flange |
Overall Dimensions: |
20 in x 10 in x 9 in |
Application: |
Cryogenic vacuum pumping, semiconductor, thin film |
Country/Region of Manufacture: |
United States |
Review Status: |
Auto-Approved (needs review) 2026-07-04 |
Condition Notes: |
This Air Products DE-202S Displex Cold Head / Ultek Cryo Pump assembly is being sold AS-IS for parts or repair. We were unable to test this unit, so no functionality can be confirmed or guaranteed. |