Hydrotech MP Series PULSAtron - Manual (Page 4)

4
M M MATERIALS OF CONSTRUCTION
The wetted materials (those parts that contact the solution being pumped) available for construction are Glass
filled polypropylene, PVC, SAN, Hypalon, Viton, Teflon, 316 Stainless Steel, PVDF, Ceramic and
Alloy C. These materials are very resistant to most chemicals. However, there are some chemicals, such as
strong acids or organic solvents, which cause deterioration of some elastomer and plastic parts, such as the
diaphragm, valve seats, or head. Consult Chemical Resistance Guide or Supplier for information on chemical
compatibility.
Various manufacturers of plastics, elastomers and pumping equipment publish guidelines that aid in the
selection of wetted materials for pumping commercially available chemicals and chemical compounds. Two
factors must always be considered when using an elastomer or plastic part to pump chemicals. They are:
1. The temperature of service: Higher temperatures increase the effect of chemicals on wetted materials.
The increase varies with the material and the chemical being used. A material quite stable at room
temperature might be affected at higher temperatures.
2. Material choice: Materials with similar properties may differ greatly from one another in performance
when exposed to certain chemicals.
M M MANUFACTURER’S PRODUCT WARRANTY
The manufacturer warrants its equipment of its manufacture to be free of defects in material or workmanship.
Liability under this policy extends for eighteen (18) months from the date of purchase or one ( 1 ) year from
date of installation or whichever comes first. The electronic components will be covered under this policy for
a period which extends for twenty four (24) months from the date of purchase. The manufacturer’s liability
is limited to repair or replacement of any device or part which is returned, prepaid, to the factory and which
is proven defective upon examination. This warranty does not include installation or repair cost and in no event
shall the manufacturer’s liability exceed its selling price of such part.
The manufacturer disclaims all liability for damage to its products through improper installation, maintenance,
use or attempts to operate such products beyond their functional capacity, intentionally or otherwise, or any
unauthorized repair. Replaceable elastomeric parts are expendable and are not covered by any warranty either
expressed or implied. The manufacturer is not responsible for consequential or other damages, injuries or
expense incurred through use of its products.
The above warranty is in lieu of any other warranty, either expressed or implied. The manufacturer makes
no warranty of fitness or merchantability. No agent of ours is authorized to make any warranty other than the
above.
The European Union Warranty address is listed below, however, please note that the seller should be contacted
first.
Steigar 24
NL 1351 AB Almere
Netherlands
M M EUROPEAN TECHNICAL FILE LOCATION
P.O. Box 91
Washington
NE37 1YH
United Kingdom