High Efficiency Air & Liquid Filtration | Liquid Filtration | Meltblown

1. Uncalendered - for high flow and high dirt holding capacity
2. Calendered - when controlled pore size and high efficiency dirt removal are of primary concern
3. Gradient Composites - combining coarse and fine layers to optimize flow, efficiency, and dirt holding capacity

Buyer's Technical Tips

Polypropylene Resin - Provided by Polymer Supplier
The homopolymer meets the requirements of the U.S. Food and Drug Administration as specified in 21CFR 177.1520(a)(1) and (c)1.1. All other ingredients used in the formulation meet their respective FDA regulations and 21CFR 177.1520(b). In summary, the polypropylene resin used meets the FDA criteria covering the safe use of polyolefin articles and components of articles intended for food contact use including cooking applications.

PBT Resin - Provided by Polymer Supplier
The PBT resin, when used in accordance with recommendations given in product literature and in accordance with 21CFR 177.1660, the applicable FDA polybutylene terepthalate regulation, meets the requirements of that regulation.

The information set forth below was provided to Hollingsworth & Vose Company by NSF after the submittal, testing and approval of our meltblown products according to methods outlined by NSF. The NSF certifications outlined below apply only to select grades in H&V's liquid filtration line of meltblown products.

Hollingsworth & Vose Company PP and PBT Meltblown grades for Liquid Filtration

H&V Polypropylene and PBT meltblown grades for liquid filtration have been tested and certified by NSF as complying with ANSI / NSF 61, Drinking Water System Components - Health Effects. Specific H&V grades are detailed under NSF listing Certificate # 0G600 - 01 as complying with ANSI / NSF 61.

Please contact Hollingsworth & Vose for specific information that may be required.

The above information applies only to the grades detailed in this website. Other H&V meltblown grades may or may not use the above stated polymers. Hollingsworth & Vose Company makes no representation or warranty whatsoever regarding the regulatory status or compliance with applicable law of polypropylene and polybutylene terepthalate resins referred to above, or as to the accuracy, reliability, veracity or completeness of the statements concerning the resins set forth above, which were furnished by our suppliers. Hollingsworth & Vose Company disclaims, and Buyers must assume, all risk, responsibility and liability that may arise from applications of, or reliance upon, any of the information set forth herein.

Polymer Operating Temperatures

Polypropylene
Polymer melt temperature 300^o - 325^o F
149^o - 163^o C

Typical operating temperatures 200^o - 225^o F
93^o - 108^o C

PBT
Polymer melt temperature 425^o - 450^o F
219^o - 232^o C

Typical operating temperatures 275^o - 300^o F
135^o - 149^o C

Nylon 6
Polymer melt temperature 400^o - 420^o F
204^o - 216^o C

Typical operating temperatures 250^o - 275^o F
121^o - 135^o C

PPS
Polymer melt temperature 520^o - 540^o F
271^o - 282^o C

Typical operating temperatures 350^o - 375^o F
177^o - 191^o C

Please note that the temperatures specified above are guidelines provided by the polymer suppliers based on the resin properties. These temperatures are to be used as guidelines to help the end user determine the appropriate resin for their particular application. Actual temperature limitations may vary depending on exposure time, humidity, environment, filter configuration, etc. Hollingsworth & Vose Company disclaims, and Buyers must assume, all risk, responsibility and liability that may arise from applications of, or reliance upon, any of the information set forth herein.

• Polyproplyene
• PBT Polyester
• Polyphenylene Sulphide (PPS)
• Nylon 6
  

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