YTI inventory image. Contact YTI to confirm the exact physical unit, condition, configuration and included hardware before purchase.
Varian · High-Vacuum Equipment
Varian HS-6 Diffusion Pump
Model: HS-6 · Equipment: Diffusion Pump
Varian HS-6 water-cooled diffusion pump available from YTI for $3,000. Two units are currently available for replacement, spare-equipment and high-vacuum production applications, with rental options also available by quote.
YTI Purchase Price
Purchase price for one Varian HS-6 diffusion pump. Final equipment condition, configuration and freight are confirmed before sale.
Rental pricing available by quoteIn Stock
- 2 Varian HS-6 diffusion pumps immediately available
- YTI purchase price: $3,000 each
- Available for purchase or rental
What do you need? Choose the right path for this pump.
Product Description
Varian HS-6 high-vacuum diffusion pump
The Varian HS-6 is a six-inch water-cooled oil diffusion pump designed for high-vacuum applications where a smaller pumping package is appropriate compared with larger industrial pumps such as the HS-20 or HS-35.
Reference rebuilt-equipment data places the HS-6 at approximately 1,500 liters per second pumping speed. The size makes it useful in vacuum coating systems, laboratory vacuum equipment, thermal processing systems, research installations and other high-vacuum equipment where a six-inch diffusion pump is appropriate.
YTI currently has two HS-6 pumps immediately available at $3,000 each. The equipment is available for purchase, while rental pricing can also be requested for temporary production coverage.
As with any legacy diffusion pump, the model number alone should not determine replacement compatibility. YTI can review the pump inlet, foreline, heaters, cooling arrangement, baffle or trap, backing pump, chamber connection and controls before the replacement unit is prepared.
HS-6 Equipment & Reference Specifications
| Manufacturer | Varian |
|---|---|
| Model | HS-6 |
| Equipment Type | Oil Diffusion Pump |
| Nominal Pump Size | 6 in. |
| Reference Pumping Speed | Approx. 1,500 L/s |
| Cooling | Water cooled |
| YTI Purchase Price | $3,000 each |
| Current YTI Availability | 2 units immediately available |
| Purchase Option | Available · $3,000 |
| Rental Option | Available by quote |
| Refurbishment | Available through YTI |
| Typical Equipment Family | High-vacuum coating & process systems |
| Brand Support | Varian / Agilent legacy equipment |
Pumping-speed and cooling values are reference information for the Varian HS-6 family and do not confirm every specification of the exact physical pumps in YTI inventory. Heater voltage, wattage, flange configuration, fluid requirements, serial number, modifications and prior service history should be confirmed by YTI before installation or system design.
Before You Purchase
Confirm the HS-6 matches your vacuum system
01 · INLET
Verify the 6-inch connection
Confirm flange style, bolt pattern, chamber connection and installation clearance rather than relying on nominal pump size alone.
02 · HEATERS
Check heater configuration
Verify voltage, wattage, mounting, thermal protection and heater condition before connecting a replacement diffusion pump.
03 · COOLING
Review water cooling
Proper water flow through the pump body and associated baffle or trap is important for reliable operation and vapor control.
04 · BACKING
Check the backing pump
A diffusion pump depends on a properly operating foreline and mechanical backing pump to maintain acceptable forepressure.
05 · BAFFLE / TRAP
Review vapor control
Existing baffles, cold traps and inlet hardware affect conductance, contamination control and pumping speed at the chamber.
06 · CONDITION
Confirm rebuild scope
YTI can evaluate the pump body, jet assembly, heaters, seals, cooling and contamination before returning a unit to service.
Equipment Options
Purchase, rent or refurbish a Varian HS-6
Current Inventory
Purchase an HS-6
YTI currently has two HS-6 diffusion pumps immediately available for $3,000 each. Final condition, configuration, compatibility and freight are confirmed before sale.
Request this $3,000 pump →Temporary Equipment
Rent an HS-6
Rental pricing is available by quote. Temporary HS-6 equipment can help bridge production downtime while another diffusion pump is undergoing repair, refurbishment or replacement.
Request rental pricing →Existing Equipment
Refurbish your HS-6
YTI can refurbish customer-owned diffusion pumps with teardown, cleaning, jet-stack inspection, heater evaluation, seals, application-correct fluid, leak testing and operational verification.
Diffusion pump refurbishment →Product FAQs
Varian HS-6 diffusion pump questions
How much is a Varian HS-6 diffusion pump from YTI?
YTI’s purchase price for the Varian HS-6 diffusion pump is $3,000 per unit. Two units are currently available. Freight and final equipment configuration are confirmed before sale.
Does YTI currently have Varian HS-6 diffusion pumps available?
Yes. YTI currently has two Varian HS-6 diffusion pumps immediately available at $3,000 each.
Is the Varian HS-6 available for sale or rental?
Both options are available. The purchase price is $3,000 per pump. Rental pricing is quoted separately based on timing, application and equipment availability.
What size is a Varian HS-6 diffusion pump?
The HS-6 is a nominal six-inch diffusion pump. Exact flange style, bolt pattern and connection dimensions of the physical YTI unit should be confirmed before installation.
What is the pumping speed of a Varian HS-6?
Reference rebuilt-equipment data places the Varian HS-6 at approximately 1,500 liters per second. Actual pumping performance at the chamber depends on conductance, baffles, foreline, backing capacity and overall system condition.
Is the Varian HS-6 water cooled?
Yes. Reference information for the HS-6 identifies it as a water-cooled diffusion pump. Cooling supply, plumbing, baffle cooling and interlocks should all be reviewed before installation.
Can YTI rebuild an existing Varian HS-6?
Yes. YTI supports Varian and Agilent diffusion pumps and can evaluate an HS-6 for cleaning, internal inspection, heater work, seals, pump-fluid service, leak testing and refurbishment.
Can an HS-6 replace another six-inch diffusion pump?
Possibly, but nominal pump diameter alone is not enough to determine compatibility. YTI should review flange dimensions, pump height, foreline location, heater requirements, cooling, backing capacity, controls and available installation space.
What information should I send YTI before purchasing an HS-6?
Send the existing pump manufacturer and model, nameplate photos, flange and connection information, heater voltage and wattage if known, backing-pump information, chamber application and photos of the installation.
Varian HS-6 · $3,000
YTI currently has two HS-6 diffusion pumps available. Request the $3,000 purchase option, ask about rental pricing, or send YTI an existing HS-6 for refurbishment.
