Page 51 - Apollo - Industrial Applications Guide

APPENDIX H – INDUSTRIAL APPLICATIONS GLOSSARY APPENDIX H – INDUSTRIAL APPLICATIONS GLOSSARY

Hot Oil Jacket MSS
The jacket is a pressure vessel placed around a valve, pipe, “Manufacturers Standardization Society of the Valve and
pump, tank or another piece of equipment that is either in a Fitting Industry” is an organization of manufacturers that
bolt on or welded on configuration. The purpose of the jacket publishes specifications where no other specification exists.
generally is to control temperatures of the valve, pipe, pump,
tank and/or the internal process media in the case of a valve. MTR
It is done by circulating the oil or thermal fluids through the “Material Test Report” documents the compliance of a material
applied vessel allowing the transfer of heat or cold. to specific published standards. All MTR’s issued by Conbraco
for our castings are in fact CMTR’s. MTR’s issued for bar stock or
Hydrogen Peroxide forged materials on the original manufacturer’s letterhead are
Valves intended for Hydrogen Peroxide service must be CMTR’s. Should those results be reproduced and distributed
properly vented (-14 option) and cleaned (-57 option). Carbon on Conbraco letterhead they would be referred to as MTR’s.
steel valves are not generally acceptable in this application. (See also CMTR.)
Avoid Multi-fill seats and seals, including Multi-fill packing.
Specify PTFE seats & seals (-35 option) if feasible. NACE
“National Association of Corrosion Engineers” writes standards
Hysteresis and recommended practices in regard to the use of materials
The amount of excess movement associated between separate and the condition of those materials for Oil Field and other
yet connected moving components as one transfers energy to applications.
the other.
Natural Gas
Liquor Natural Gas is a fuel gas formed from refined naturally occurring
A family of terms commonly used in the Pulp and Paper hydrocarbon gases, primarily Methane. Depending where a
industry. Includes Black Liquor, Green Liquor and White liquor. valve is installed in a gas system option -14 “Vented Ball” or
“Vented Body” may be required. This is particularly important
LP Gas on valves which can undergo significant temperature changes.
LP Gas is a fuel gas formed by mixture of liquefied petroleum Some Natural Gas applications will require UL or CSA listed
gases, commonly propane and butane. LP gas is produced and valves of which Conbraco offers several.
frequently stored at reduced temperatures. Depending where
a valve is installed in an LP gas system option -14 “Vented Ball” or Needle Valve
“Vented Body” may be required. This is particularly important The Needle Valve is a volume control valve that restricts flow
on valves which can undergo significant temperature changes. in small lines. The fluid going through the valve turns 90
Consult section on Vented Valves – Bodies, Balls (Top & Side) degrees and passes through an orifice that is the seat for a rod
if you need to gather a better understanding. Some LP gas with a cone-shaped tip. The size of the orifice is changed by
applications will require UL or CSA listed valves of which positioning the cone in relation to the seat.
Apollo® offers several.
NPT
MSDS Sheet National Pipe Thread is a US standard of tapered threads used
“Material Safety Data Sheet” is a document used to on pipe, valves and fitting connections. FNPT or NPT(F) stands
communicate hazards associated with a substance. Apollo® for “Female Pipe Thread” and refers to internal threads. MNPT,
products meet the requirements under the definition of or NPT(M) stands for “Male Pipe Thread” and refers to external
an “Article” and are considered exempt from the Hazard threads.
Communication Standard 29 CFR 1910.1200. OSHA’s defines
an “Article” as a manufactured item: (1) which is formed to a
specific shape or design during manufacture (2) which has end
use function(s) dependent in whole or in part upon its shape
or design during end use; and (3) which does not release, or
otherwise result in exposure to, a hazardous chemical under
normal conditions of use.

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