Vacuum Diffusion Pump Fluid
Vacuum Diffusion Pump Oil BL-274
Diffusion Pump Oil BL-274 is colorless transparent oily liquid with good resistance to
BL-274 View technical index
Vacuum Diffusion Pump Fluid
Vacuum Diffusion Pump Oil BL-275
Diffusion Pump Oil BL-275 is a colorless to light yellow transparent oily, single-component fluid designed for ultrahigh vacuum applications. The vapor pressure and back streaming rate of BL-275 is so low that the use of traps or…
- Grade code
- BL-275
- Product line
- Vacuum Diffusion Pump Fluid
- Viscosity
- 165-185
- Certification
- ISO 9001 quality system
- Origin
- Hangzhou, Zhejiang, China
Overview
What BL-275 Is
Equivalent Brand: Dow Corning 705, MT-705, and HIVAC-F-5
Synonyms: Vacuum Diffusion Pump Oil BL-275
Key benefits
Why Formulators Choose It
- Diffusion Pump Oil BL-275 is a colorless to light yellow transparent oily, single-component fluid designed for ultrahigh vacuum applications. The vapor pressure and back streaming rate of BL-275 is…
Technical index
Specifications for Vacuum Diffusion Pump Oil BL-275
These are the release values this grade is tested against under our ISO 9001 system. The batch result is issued as a certificate of analysis with the shipment. Any value not listed here is not published — ask and we will measure it rather than guess.
| Viscosity, cst (25 ℃ ) | 165-185 |
|---|---|
| Refractive Index (25 ℃ ) | 1.5760~1.5790 |
| Flash Point, ℃ | > 2 4 0 |
| Minimal Vacuum Level , P | ≤ 6.65 ×10 - 7 |
| Saturated Vapor Pressure, P | ≤ 6.65×10 - 8 |
| Electrical and electronics industry • TV tubes, fluorescent tubes, cathode ray tubes • ordinary bulbs • capacitors • rectifier metallised film vacuum system | Optical industry • surface improvements • anti reflective coatings • optical filters and mirrors |
|---|---|
| Metallurgy industry • high-vacuum furnaces • melting, degassing and sintering refractory metals; thick-film deposition | |
| Plastics industry • surface improvements • mirror coatings • protective coatings • film coatings | Other industries • processing metals and fuels • accelerators • molecular plants • R & Dplants • mass spectrometry |
| Others Be used as transmission fluid in high-temperature carriers and various instruments. |
Application scenarios
Where BL-275 Is Used
- Diffusion Pump Oil BL-275 is a colorless to light yellow transparent oily, single-component fluid designed for ultrahigh vacuum applications. The vapor pressure and back streaming rate of BL-275 is…
Who it is for
Industries That Specify This Grade
Matched from this product's own published application text — not from a generic industry list.
Industrial Processing & Defoaming
Diffusion Pump Oil BL-275 is a colorless to light yellow transparent oily, single-component fluid designed for ultrahigh vacuum applications. The vapor pressure and back streaming rate of BL-275 is so low that the use…
Packing
How It Is Supplied
5kg plastic drums, 25kg plastic drums, 25kg Iron drums or 200kg Iron drums.
Shipments leave from Hangzhou, Zhejiang, China with commercial invoice, packing list, certificate of origin, TDS and SDS prepared before booking.
Comparison
Against Neighbouring Grades
| Grade | Appearance | Headline value |
|---|---|---|
| Vacuum Diffusion Pump Oil BL-275 | — | 165-185 |
| Vacuum Diffusion Pump Oil BL-274 | — | 38 ±3 |
| Alkyl Aryl modified Silicone Fluid BL-225 | Light yellow or transparent oily liquid | 1200 - 1600 |
| Dimethyl Silicone Fluid BL-201 | — | 10±2 / 20±4 / 50±5 / 100±5 / 200±10 |
Related grades
Other Grades in Vacuum Diffusion Pump Fluid
Alkyl Silicone Fluid
Alkyl Aryl modified Silicone Fluid BL-225
BL-225 is a medium viscosity alkyl and aryl modified silicone fluid. It owns good lubricity, mold release, hydrophobicity, compatibility with…
BL-225 View technical index
Dimethyl Silicone Fluid
Dimethyl Silicone Fluid BL-201
BL-201 is a polydimethylsiloxane polymer manufactured to yield essentially linear polymers in a wide range of average kinematic viscosities from…
BL-201 View technical index
Dimethyl Silicone Fluid
Dimethyl Silicone Oil BL-201L
Dimethyl Silicone Oil BL-201L (0.65cst)
BL-201L View technical index
Related Reading
Answers
Vacuum Diffusion Pump Oil BL-275 — Questions
What is Vacuum Diffusion Pump Oil BL-275?
Diffusion Pump Oil BL-275 is a colorless to light yellow transparent oily, single-component fluid designed for ultrahigh vacuum applications. The vapor pressure and back streaming rate of BL-275 is so low that the use of traps or refrigeration is unnecessary for some ultra-high and ultra-clean vacuum applications. It has the highest phenyl content of all silicone diffusion pump oils and the best resistance to radiation.
How is BL-275 supplied?
5kg plastic drums, 25kg plastic drums, 25kg Iron drums or 200kg Iron drums.
Can I get a sample of BL-275 before ordering?
Yes. Samples of Vacuum Diffusion Pump Oil BL-275 are available for evaluation. Message us on WhatsApp or email [email protected] with your application, target viscosity or solid content and the trial quantity you need, and we will confirm availability and lead time.
What is the minimum order quantity?
MOQ depends on the pack size you choose — 5kg plastic drums, 25kg plastic drums, 25kg Iron drums or 200kg Iron drums.. Tell us your annual volume and we will quote the most economical packing and shipping route from Hangzhou, China.
Quote BL-275
Send your application, the annual volume and the destination port. We return the technical data sheet, the safety data sheet, packing options and a price with lead time from Hangzhou.