Blagdon Pump Pulsation Dampeners - Manual (Page 3)

Models PD25M, PD40M, PD50M, PD80M Page 1
Blagdon Pump ® , IDEX Pump Technologies (Ireland) Ltd., A Unit of IDEX Corporation • R79, Shannon, Co Claire, IRELAND • Tel: +353 61 47933
www.blagdonpump.com
pdsm-rev0510
Materials
Maximum* Minimum* Optimum**
Operating Temperatures
* Definite reduction in service life.
** Minimal reduction in service life at ends of range.
For specific applications, always consult “Chemical Resistance Chart”
Technical Bulletin
Nitrile General purpose, oil-resistant. Shows good solvent, oil, water and
hydraulic fluid resistance. Should not be used with highly polar solvents like 190°F -10°F 50°F to 140°F
acetone and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons. 88°C -23°C 10°C to 60°C
EPDM Shows very good water and chemical resistance. 212°F -10°F 50°F to 212°F
Has poor resistance to oil and solvents, but is fair in ketones and alcohols. 100°C -23°C 10°C to 100°C
NEOPRENE All purpose. Resistant to vegetable oils. Generally not affected 170°F -35°F 50°F to 130°F
by moderate chemicals, fats, greases and many oils and solvents. Generally 77°C -37°C 10°C to 54°C
attacked by strong oxidizing acids, ketones, esters, nitro hydrocarbons and
chlorinated aromatic hydrocarbons.
VIRGIN PTFE Chemically inert, virtually impervious. Very few chemicals are
known to react chemically with PTFE: molten alkali metals, turbulent liquid or 212°F -35°F 50°F to 212°F
gaseous flourine and a few fluoro-chemicals such as chlorine trifluoride or 100°C -37°C 10°C to 100°C
oxygen difluoride which readily liberate free fluorine at elevated temperatures.
FKM shows good resistance to a wide range of oils and solvents; especially
all aliphatic, aromatic and halogenated hydrocarbons, acids, animal and 212°F 32°F 75°F to 212°F
vegetable oils. Hot water or hot aqueous solutions (over 70°F) will attack FKM. 100°C 0°C 24°C to 100°C
SANTOPRENE ® Injection molded thermoplastic elastomer with no fabric 212°F -10°F 50° to 212°F
layer. Long mechanical flex life. Excellent abrasion resistance. 100°C -23°C 10°C to 100°C