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Product catalog summary

Specifications:
The document outlines various models and components in vacuum technology, including pressure switches, gauges, regulator valves, non-return valves, and lubricant oils for vacuum pumps. Key specifications include:

Model SIF.1: A diaphragm pressure switch with a normally open contact and a bimetal thermometer set to 30°C, used for monitoring filter efficiency.
Model SIF.2: A mechanical Bourdon spring pressure gauge for visual pressure indication and filter clog warnings.
Flow and Vacuum Regulator Valves: These adjust flow pressure using a screw or knob, with settings based on circuit throughput.
Non-Return Valves: Made of bronze with NBR rubber gaskets, designed to prevent load loss and available for different mounting positions.

Procedures and Recommendations:
Guidelines for effective component use include:

Using manufacturer-supplied oils or those with specified characteristics to ensure pump performance and prevent damage.
For high vacuum pumps, using oils with low vapor tension and hygroscopic content to maintain efficiency.

Standards and Norms:
References include standards like EN 60529 for protection class (IP65) and EN 8293 for accuracy class (2.5).

Lubricant Oils:
Details on appropriate oils for vacuum pumps include:

BV Series Oils: For lubricated pumps, offering high viscosity index and chemical stability.
AV Series Oils: For high vacuum pumps, with low vapor tension.
SW Series Oils: Multi-purpose oils for rotary pumps, reducing deposits.

Specifications and Properties:
PAO-based oils are highlighted for their anti-wear, anti-oxidant, demulsifying, and deaerating capabilities, maintaining pump cleanliness and efficiency. They are stable at high temperatures and compatible with most lubricants, excluding silicone-based ones.

Advantages:
Benefits include excellent deaeration, anti-foam properties, high oxidation resistance, and prolonged service life with minimal maintenance.

Important Considerations:
Vacuum oils are combustible. If a pump intakes mixtures with over 21% oxygen, it can lead to oil oxidation and potential pump damage. Pumps designed for PFPE-type oil should be used in such cases.

Comparison Table:
A table compares oil types and specifications, including viscosity, operating pressure, temperature, and flashpoint. AV and SW series oils have no commercial equivalents.

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All DVP Vacuum Technology catalogs and technical brochures