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Available in economy, standard, and custom models, our vacuum chambers are competitively priced, durable, and ideal for vacuum degassing, industrial, high vacuum, and ultra high vacuum applications. With a broad selection of standard industrial and high vacuum chambers and numerous options and accessories available to customize your vacuum chamber, we make it easy to get the vacuum chamber you need.
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Vacuum Pump Oil and Grease:
Diffusion Pump Fluid

Description
Dow Corning and Conquest Diffusion Pump fluids are designed for High Vacuum and for fast pumping of large volumes of gas or vapor in production operations.

Santovac 5 is a polyphenyl ether diffusion pump fluid with extremely low vapor pressure capable of attaining 10E-10 torr range. An excellent choice when silicone fluids must be avoided.

Benefits include:
  • Shorter conditioning runs
  • Faster pumping
  • Minimal backstreaming
  • Longer service life
  • Cleaner systems and less maintenance required
  • Faster cycling, reduced downtime, and less frequent fluid replacement
    		• Diffusion Pump Fluid

    Specifations and Ranges
      LVODC-702 LVOCQ-702 LVODC-704 LVOCQ-704 LVODC-705 LVOCQ-705

    Ulimate Vacuum, Torr
    untrapped
    trapped


    10-    6
      --
    10-    6
      --
    10-    7 TO 10-8
    TO 10-    11
    10-    7 TO 10-8
    TO 10-    11
    10-    9 TO 10-10
    10-    11
    10-    9 TO 10-10
    10-    11

    Extrapolated Vapor, Pressure, Torr
     25C (77F)

    		1 x 10-6 1 x 10-6 2 x 10-8 8.4 x 10-8 3 x 10-10 3 x 10-10

    Specific Gravity at 25C (77F), cST

    		1.07 1.07 1.07 1.10 1.09 1.09

    Viscosity at 25C (77F), cST

    		45 41-46 39 46 175 165-185

    Flash Point, Open Cup, C (F)

    		 193 (380) 192 221 (430) 220 243 (469) 243

    Boiling Point at 0.5 Torr, C (F)

    		180 (356) 178 215 (419) 223 245 (473) 245
    Typical Boiler Temp C (F) 190 (374) 188 220 (428) 230 250 TO 270
    (482 TO 518)    		 248 TO 265
    Surface Tension, DYNES/CM 30 30 37.3 37.3 36.5 36.5

    Heat of Vaporization kCal/G mole

    		21.7/1190C (374F) 21.7/1190C 25.5/200C (392F) 22.002/200C (392F) 28.2/250C1990C (482F) 28.2/250C (482F)
    Molecular Description mixed phenyl methyl dimethyl cyclosiloxane mixed phenyl methyl dimethyl cyclosiloxane tetamethyltetra phenyltrisil oxane tetamethyltetra phenyltrisil oxane penta phenyl
    trimethyl trisiloxane         		penta phenyl
    trimethyl trisiloxane
    Molecular Weight N/A N/A 484 490 546 546
    Vapor Pressure Equation,
    log 10 P=A-B/T    		 N/A N/A A=11.025
    B=5570    		 A=9.11
    B=4826    		 N/A N/A
    Additional Information
    Dow Corning 702 Diffusion Pump Fluid Data Sheet (PDF)
    Dow Corning 702 Diffusion Pump Fluid MSDS Sheet (PDF)
    Dow Corning 702, 704, 705 Diffusion Pump Fluid MSDS Sheet (PDF)
    Dow Corning 704 Diffusion Pump Fluid MSDS Sheet (PDF)
    Dow Corning 705 Diffusion Pump Fluid MSDS Sheet (PDF)

    Products:
    Part Number Description
    LVOCQ7021G CQ 702 Diffusion Pump Fluid, 1 Gallon $340
    LVOCQ702500CC CQ 702 Diffusion Pump Fluid, 500 cc $50
    LVOCQ7041G CQ 704 Diffusion Pump Fluid, 1 Gallon $435
    LVOCQ704500CC CQ 704 Diffusion Pump Fluid, 500 cc $75
    LVOCQ7051G CQ 705 Diffusion Pump Fluid, 1 Gallon $795
    LVOCQ705500CC CQ 705 Diffusion Pump Fluid, 500 cc $120
    LVODC-7021G Dow Corning 702 Diffusion Pump Fluid, 1 Gallon $680
    LVODC-702500CC Dow Corning 702 Diffusion Pump Fluid, 500 cc $110
    LVODC-7041G Dow Corning 704 Diffusion Pump Fluid, 1 Gallon $840
    LVODC-704500CC Dow Corning 704 Diffusion Pump Fluid, 500 cc $135
    LVODC-7051G Dow Corning 705 Diffusion Pump Fluid, 1 Gallon $1,550
    LVODC-705500CC Dow Corning 705 Diffusion Pump Fluid, 500 cc $300
    LVOSAN5-100CC Santovac 5, 100 cc $165
    LVOSAN5-500CC Santovac 5, 500 cc $735

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