Diffusion Pumps
diffusion pumps — pre-owned
Browse 39 diffusion pumps — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

EDCO USA V20-150H Vacuum Pump/Generator, 26.7in-HG, 80PSI, 1/4"NPT
EDCO USA. EDCO Vacuum Pump/Generator. Ports: 1/4"NPT. Max Vacuum: 26.7in-HG. The Original Manufacturer's warranty does not apply. This is a surplus item. Maple Grove, MN 55369. 9472 Hemlock Lane N.

CVC Diffusion Pump Model mcf60-01 120v
CVC vapor pump, 120v, Tested works. 12”, 100cc See pictures for details

VARIAN Diffusion Pump Type 0183 120V

Edwards 160 MM Diffstak Diffusion Pump

UNTESTED AS-IS Edwards E02 Oil Diffusion Pump 110V 400W FLUID CHARGES ML75
UNTESTED, SOLD AS-IS

Edwards Diffstak 63/150P Oil Diffusion Pump 210V 450W B62425977 ISO63 As Is
For sale is a used Edwards Diffstak 63/150 (likely P-model with high-vacuum isolation valve) oil vapor diffusion pump. Removed from a laboratory or industrial vacuum system. Selling strictly as-is, untested, for parts, repair, or as a complete unit for the experienced buyer.

EDCO USA V20-150M Vacuum Pump/Generator, 20.8n-HG, 80PSI, 1/4"NPT
EDCO USA. Ports: 1/4"NPT. Vacuum Pump/Generator. Max Vacuum: 20.8n-HG. The Original Manufacturer's warranty does not apply. This is a surplus item. 9472 Hemlock Lane N. SKU# SB-142948.

Edwards 09898/32 49001 P Diffstak Diffusion Pumps
We think good. When we receive the product we will confirm item is. Let us know what’s going on. are more than happy to rectify any problems by replacing. received in a different condition than stated (DOA, not. ).

CVC Consolidated Vacuum Corporation Dial Gage MM Hg millimeters mercury Used
CVC Consolidated Vacuum Corporation. Heavy Duty Industrial Gage.

EDCO USA V20-150H Vacuum Pump Generator

Edwards Oil Diffusion Pump and Backing Roughing Valve BRV10 BRV 10
We will do what we can to accommodate any reasonable request about an issue.

M6 Varian Vacuum Diffusion Pump Cold Trap Water-Cooled Baffle 6" Flange
The M6 Varian Vacuum Diffusion Pump Cold Trap is a high-quality unit designed for use in vacuum pump systems. This cold trap, with a 6" inlet flange diameter, utilizes a water-cooled baffle to effectively condense and trap moisture and vapor, ensuring a clean and dry vacuum environment. Made by the reputable brand Varian in the United States, this unit is a reliable and essential component for maintaining proper system performance in various industrial and laboratory settings.

T-M VACUUM PRODUCTS DIFFUSION VACUUM PUMP W/AIRCO TEMESCAL VALVES 1-1/8" FIG1310
GATE VALVES. T-M VACUUM PRODUCTS. 31-1/2" X 18" X 12".

Untested Varian VHS-10 Diffusion Pump 480V 3PH F0426-339
The pump is untested because I don’t know how to test it but it appears in excellent condition. Always stored inside. Please message me before purchasing. Available for pickup in Flagstaff, Arizona. The Varian VHS-10 Diffusion Pump is an electric-powered vacuum pump designed specifically for diffusion applications. It features water-cooled operation for efficient cooling and has a rated power of 480V and 3PH. This model, manufactured in the United States, is suitable for use in various vacuum systems requiring precise control and high pumping speeds. As an untested product, it offers a reliable and durable option for those in need of a dependable diffusion pump for their industrial or research needs.

MRC Diffusion pump with Granville Phillips Series 244 2" Cryosorb Cold Trap
MRC Diffusion pump with Granville Phillips Series 244 2" Cryosorb Cold Trap. This unit came from inventory of Curtis Technology From San Diego, CA. Please contact me for shipping quote or Local pick up!

Edwards Speedivac Vapour Diffusion Pump EO2 Rig w/ Pressure Gauge
Item condition: Used Edwards Speedivac Vapour Diffusion Pump EO2 Rig w/ Pressure Gauge This item was removed from a university where it was surplus to requirement.It is in good overall cosmetic condition, we are unable to test it at our facility.The previous owner stated it is in good working order. NOTE: No cables, remotes, accessories, power supplies, consumables or any other item is included unless shown in the item photo or is in the item description. Item Details Property Value Tested value Electrical Supply N/A 1-Phase Plug Included? (1-Phase) N/A Yes - Standard UK 3-Pin Mains Plug (BS 1363) PAT Test Result N/A Pass PAT Test Date N/A 12-09-2025 Voltage N/A 240V Year of Manufacture N/A Unknown Part / Catalogue Number Unknown Last Service Date N/A Unknown.

EDCO V20-150M-ST Single-Stage Vacuum Pump/Generator, 20.8inHg, 80psi w/Silencer
EDCO USA. w/ Silencer. Vacuum Pump/Generator. Max Vacuum: 20.8inHg. Model # : V20-150M-ST. The Original Manufacturer's warranty does not apply. This is a surplus item. Office Hours.

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus. Item ID 2
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.

VARIAN 362-4 CRYOTRAP FOR VHS-4 DIFFUSION VACUUM PUMP CRYOGENIC
ALWAYS HERE TO HELP. A signed credit card authorization form is required for all orders paid with credit card. SKU: I610239. We directly accept US issued credit cards.

Edwards: E2M8 High Vacuum Pump. Model 8 Two Stage with Franklin Motor
Edwards: E2M8 High Vacuum Pump. FOB Phoenix. Local Pick up is acceptable.

M4 Varian Vacuum Diffusion Pump Cold Trap Water-Cooled Baffle 6" Flange
The M4 Varian Vacuum Diffusion Pump Cold Trap is a high-quality unit designed for vacuum applications. With a 4" flange and water-cooled baffle, this cold trap effectively condenses and traps water vapor and other gases, ensuring a clean and dry vacuum environment. The Varian brand is known for reliability and durability, making this unit a dependable choice for industrial and laboratory settings where precise pumping and filtration are essential.

Liquid Nitrogen Cold Trap For Accessory To Diffusion Pump.
Selling a used liquid nitrogen cold trap to be used in conjunction with a diffusion pump to greatly increase vacuum conditions by trapping condensible gases.

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus. Item ID 4
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus. Item ID 6
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.

CVC Diffusion Pump, SN 26032, MCF 300, 115V, Phase 1, 18” Tall
The CVC Diffusion Pump, with serial number 26032 and model number MCF 300, operates at a supply voltage of 115V. Standing at 18" tall, this pump is designed by Consolidated Vacuum Corporation and is a key component for vacuuming systems, specifically in the field of hydraulics, pneumatics, and plumbing. Its Phase 1 design ensures efficient and reliable performance for various industrial applications requiring the removal of gases and contaminants from a system.
You save $150.00

Edwards Diffstack 250/2000c Diffusion PUMP | B35033978 | 250 2000 | 2130L/s 240v
Edwards Vacuum 250/2000C Diffusion Pump with ISO250-K inlet flange, 2130 L/s, Water cooling, 240 VAC 50/60 Hz Removed from system in good condition but should be inspected, cleaned and gone thru prior to installation. Not tested so selling as parts/repair Ships pallet packaged Freight

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus. Item ID 7
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.

Edwards E2M8 Two Stage Rotary Vane Vacuum Pump w/ Franklin Motor AS-IS
• Model: E2M8. Due to lack of testing, it is being sold AS-IS, FOR PARTS OR REPAIR. Ideal for rebuild, parts, or technician repair.

Dresser DPD 6-1800 6" Water-Cooled Diffusion Pump DC-704 Oil 1800 L/sec
Dresser DPD 6-1800 6" Water-Cooled Diffusion Pump DC-704 Oil 1800 L/sec

Edwards Diffstak 160 Vapour Diffusion Pump Rig w/ Pressure Gauge
Item condition: Used Edwards Diffstak 160 Vapour Diffusion Pump Rig w/ Pressure Gauge This item was removed from a university where it was surplus to requirement.It is in good overall cosmetic condition, we are unable to test it at our facility.The previous owner stated it is in good working order.Please note: There is no plug attached. NOTE: No cables, remotes, accessories, power supplies, consumables or any other item is included unless shown in the item photo or is in the item description. Item Details Property Value Tested value Electrical Supply N/A 1-Phase Plug Included? (1-Phase) N/A Yes - Standard UK 3-Pin Mains Plug (BS 1363) PAT Test Result N/A Fail PAT Test Fail Reason N/A Other - Please Specify PAT Test Fail Reason Specifics N/A Missing Plug and bare w.

Nachi VDR-13A-1A2-3A2-13 Variable Vane Pump Hydraulic 1" Shaft
SKU: 282946 - Nachi VDR-13A-1A2-3A2-13 Variable Vane Pump Hydraulic 1" Shaft - Nachi - Used . -- Prefer to pick it up yourself? You are welcome to do so, by appointment. We will load it free of charge unless otherwise stated in the listing. If your purchase requires a pallet, banding or any other form of packaging, a packaging fee may apply.

Liquid Nitrogen Cold Trap For Diffusion Pump System
Selling a used liquid nitrogen cold trap to be used in conjunction with a diffusion pump. This will trap condensible gases to greatly improve vacuum conditions. Taken from a working system.

Edwards: E2M-30 High Vacuum Pump. Model 30 with Maathon Electric Motor
Edwards: E2M-30 High Vacuum Pump. Model 30 with Maathon Electric Motor. FOB Phoenix. Local Pick up is acceptable.

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus. Item ID 8
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.
![VARIAN 0188 M-6 DIFFUSION PUMP 6" [Rebuilt]](https://i.ebayimg.com/images/g/rGIAAOSwxT5lXs5B/s-l500.jpg)
VARIAN 0188 M-6 DIFFUSION PUMP 6" [Rebuilt]
We have 2 in this condition. One has the power cord already installed, and the other has the wires easily accessible so you can add any appropriate power cord of choice.

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.

TOKUDA ESV-100A ULT-HI-VACUUM. Used Surplus. Item ID 3
This item has been removed from a working facility. We cannot possibly describe every detail of this item and what is in the pictures is included in the sale. This item is to be used for its intended purpose.

Rebuilt Varian 326-6 6" ASA Long Life LN2 Trap
It is 24" long, 15" wide and 9.75" flange face to flange face. It takes 15 liters of LN on the initial fill and then has a 10 liter reservoir capacity. The trap is 75 lbs. Pre-paid orders may also be held for pick up at our Will Call desk in Fremont, CA.

Edwards Diffstak 250 Large Oil Diffusion Pump
Item condition: Used Large Oil Diffusion PumpThis item was removed from a facility where it was surplus to requirement.It is in good cosmetic condition, we are unable to test it at our facility.The previous owner stated it was in working order prior to removal. NOTE: No cables, remotes, accessories, power supplies, consumables or any other item is included unless shown in the item photo or is in the item description. Item Details Property Value Tested value Recertification Initial Checks Overall Cosmetic Condition N/A Good Safety Features Emergency Stop Safety Check N/A N/A Service Details Last Service Date N/A N/A This item is only suitable for pallet delivery. Delivery will be made to kerbside only, unless otherwise confirmed in writing. The listed price is for economy deliv.