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VALVE
BODY MATERIAL AVAILABILITY
CAST
IRON ASTM A-126 Class B
A general purpose material suitable for water, air, petroleum
products, most solvents, dry powders, and a wide variety of
chemicals when used in the unlined state. Can be lined with
a wide variety of rubbers and plastics to handle almost any
process media. (low cost)
DUCTILE
IRON ASTM A-536-GR 65-45-12
A general purpose material with usage similar to cast iron.
Ductile iron however is much stronger and more capable where
there may be high pipeline stresses, danger from impact, or
concern from leakage upon line or valve fracture. Normally
ductile iron can be used as a direct replacement for steel
valves. Can be lined with a wide variety of rubbers and/or
plastics to handle almost any process media. (medium cost)
CAST
STEEL ASTM A-126, GR WCB
Another general purpose material somewhat less resistant to
corrosion than cast iron especially where water is the media.
Steel is much stronger and like ductile iron much more capable
where there may be high pipeline stresses, danger from impact
or concern from leakage upon line or valve fracture. Steel
valves are expensive and normally only used where specified
by the end user. Can be lined with a wide variety of rubbers
and/or plastics to handle almost any process media.
316
STAINLESS STEEL ASTM A-351 GR CF8M
An alloy of iron, carbon, nickel and chromium. Suitable for
most foods, beverages, pharmaceuticals, solvents, sea water,
oils, and some acids and alkalies.
ALLOY
20 ST.ST. ASTM A-351 GRADE CN-7M
Has higher amounts of nickel and chromium than 300 series
stainless steels. It is more resistant to sulfuric acid and
is used widely in chemical processing and water treatment.
Note:
Other "Body Materials" are available as an option. Call our
sales department for details.
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