Maintenance, IV.4 Applications | Saint Gobain Vidros PFD4, PFS4

PFD4/PFS4 – OPERATING INSTRUCTIONS

IV.4 – Applications

The PFD4/PFS4 pump is a volumetric pump.

Each impulse delivers a constant unit stroke (about 900 cc/unit stroke).

A leak detector (in case of bellows failure) can be fitted on each pump body (female thread M8 on each half body (P/N 2472 and 2473).

∙Part number marked K (PFD4 322K or PFS4 322K) indicates that the pump will be supplied with KALREZ® manifold O.rings (P/N 2632K, Mark F) and body O.rings (P/N 2491K, Mark C).

∙Part number marked W (PFD4 322W or PFS4 322W) indicates that the pump will be supplied with PFA manifold seals (P/N 2592, Mark F), PTFE body rings (P/N 2593, Mark C), and special manifolds (P/N 2591M or 2599M, Mark G).

∙Part number marked G (PFD4 322G or PFS4 322G) indicates that the pump will be supplied with special manifolds with no seals (P/N 2430G or 2435G, Mark G) and PTFE body rings (P/N 2593, Mark C).

PFS4 pumps are equipped with valve seats without lip (P/N 2629A and 2630A, Marks D and E) and rounded spires bellows (P/N 2309S, Mark B) in order to pump abrasive products (slurry).

Common applications are:

∙ Semiconductor Industry:Transfer of ultrapure and corrosive chemicals. Pump filter recirculation systems.

∙Pharmaceuticals and Chemicals: Chemical injection and sampling.

IV.5 – Limitations of use

The standard speed of PFD4/PFS4 pump is about 100 strokes/minute.

The following should NOT be part of the system:

∙Do not connect the pump inlet or outlet with air, nitrogen or liquid under pressure.

∙Lubricated and/or wet air or nitrogen,

∙Air supply tubing greater than 3/8” (10 mm),

∙Air line length between the pump and control valve less than 10 feet (3 m) and more than 19 feet (6 m),

∙Air pressure less than 29 PSI (2 bar) or more than 72.5 PSI (5 bar),

∙Inlet connection less than 7/8” (22 mm),

∙Restricting inlet (valve, filter...),

∙Exceed the recommended liquid temperatures,

∙Pumping too viscous or abrasive liquids.

Any of the above can be detrimental to the normal operation and life expectancy of the pump, and may invalidate the warranty.

If the pump is used with very corrosive chemicals and left for extended periods not in use, we recommend the system is emptied and flushed.

V – Maintenance

V.1 – Trouble shooting

If the pump stops for any reason, check:

∙The air/nitrogen supply,

∙That all valves in the chemical line are open,

∙That pneumatic screws (P/N 2478) are correctly tightened.

5/8

INDEX	DATE	N°
03	22/04/02	DC04020US

PFS4, PFD4 specifications

Saint-Gobain Vidros is a prominent name in the glass manufacturing industry, recognized for its innovative and high-quality products. Among its notable offerings are the PFS4 and PFD4 glass types, which are designed to meet the diverse needs of modern architecture, energy efficiency, and sustainability.

The PFS4 (Premium Float Solar) glass is specifically engineered for applications where solar control is crucial. It features a low solar heat gain coefficient, allowing buildings to minimize cooling energy consumption during warmer months. This glass type is particularly advantageous for large commercial buildings with extensive glazing areas. The PFS4 glass is also treated with advanced coatings that enhance its performance by reflecting unwanted solar radiation while permitting a substantial amount of natural light to enter, creating a comfortable and well-lit indoor environment.

On the other hand, the PFD4 (Premium Float Double) glass caters to energy efficiency and superior thermal insulation. This double-glazed solution offers enhanced acoustic performance and thermal resistance, making it an ideal choice for residential and commercial buildings in noisy or extreme climates. With its unique combination of air or argon gas fill between the glass panes, the PFD4 effectively reduces heat loss in winter and minimizes heat gain in summer, contributing to lower energy bills and reduced environmental impact.

Both PFS4 and PFD4 incorporate cutting-edge technologies that align with the global trend towards eco-friendly building practices. These glass products are manufactured using sustainable processes, and they fulfill stringent environmental standards. They not only ensure safety and durability but also promote reduced energy consumption and greenhouse gas emissions.

Additionally, the aesthetic appeal of both glass types cannot be overstated. Leaders in contemporary design often select these products for their clarity and ability to blend seamlessly into various architectural styles. The low-reflective quality of PFS4 combined with the noise reduction capabilities of PFD4 makes them versatile choices for any project.

In summary, Saint-Gobain Vidros PFS4 and PFD4 glass types stand out in the glass industry for their commitment to quality, innovation, and sustainability. Whether for enhancing energy efficiency, acoustic comfort, or aesthetic value, these products provide cutting-edge solutions that cater to the modern demands of architecture and construction. By opting for PFS4 and PFD4, builders and architects can ensure a harmonious balance between functionality and design, paving the way for more sustainable and beautiful structures.