Pipework Insulation

Catalogues and Specifications Reference Manual

Typical Specifications : Selectors and Pointers for Insulation : Pipework Insulation

You do not select and store Insulation in the same way that you select piping components from other modules. The Insulation Specification is interrogated automatically by modules such as MODEL each time insulation details are required. When setting up an Insulation Specification you must follow a strict format if this automatic selection is to work properly.

For any specific insulation material, the correct insulation thickness for a given pipework application is usually derived from two Selector questions:

Note:

Although usually derived from two Selector questions this is optional. Refer to Sample Insulation Specification.

TEMPerature:

The working temperature; usually specified as a temperature range (e.g. 101,200)

PBOR0:

The nominal diameter of the component; usually specified as a range of bore sizes (e.g 1, 2½ using inch bores or 25,70 using metric bores)

These might be related to the available thicknesses in the following way:


Temperature Range	Bore Range	Insulation Thickness
101 - 200	1 - 2½	1
101 - 200	3 - 8	1½
201 - 400	1 - 2½	2
201 - 400	3 - 8	3
0 - 100	1 - 8	1

where the bores and insulation thickness are defined in inches. It is assumed in this example that the minimum insulation thickness which can be handled conveniently is 1 inch and so this has been applied to all pipe sizes in the low temperature range (0 to 100 degrees).

This data would result in an Insulation Specification of the following form:

NEW SPEC /INSPEC
HEADING
TYPE   NAME    TEMP      PBOR0   CATREF   DETAIL
INSU   */IN1     0,100   1,8     /IC1     /CAL.SIL
INSU   */IN2   101,200   1,2.5   /IC1     /CAL.SIL
INSU   */IN3   101,200   3,8     /IC1.5   /CAL.SIL
INSU   */IN4   201,400   1,2.5   /IC2     /CAL.SIL
INSU   */IN5   201,400   3,8     /IC3     /CAL.SIL

Note:

Because of possible ambiguity due to the overlapping ranges of PBOR0, the order in which the SELEC headings are tabulated is important. For the successful selection of Insulation the TEMP question must be tabulated before the PBOR0 question.

Sample Insulation Specification

The following example shows an Insulation Specification not using Temperature as a selector:

$S-  -- Synonym translation OFF

-- -----------------------------------------------

-- Data Listing    Date : 27 Jan 2010 10:20

ONERROR GOLABEL /ERROR0

-- Navigate to existing location

/E

NEW SPWL /AvevaPipeISPECS

-- *

NEW SPECIFICATION /20mm_FibreGlass
Matref /FIBERGLASS-INSULATION
PURP INSU
DESCR 'Aveva Pipe 20mm insulation' 
LNTP unset
QUES TYPE
TDEF 'NONE'

NEW TEXT
DESCR 'Aveva Pipe 20mm insulation'
STEX 'INSUL'

NEW SELEC
QUES PBOR
TANS 'INSU'
TDEF 'NONE'

NEW SPCOMPONENT
MAXA 100000
CATR SCOMPONENT /INS20

-- *
NEW SPECIFICATION /25mm_FibreGlass
Matref /FIBERGLASS-INSULATION
PURP INSU

DESCR 'Aveva Pipe 25mm insulation' 
LNTP unset
QUES TYPE
TDEF 'NONE'

NEW TEXT
DESCR 'Aveva Pipe 25mm insulation'
STEX 'INSUL'

NEW SELEC
QUES PBOR
TANS 'INSU'
TDEF 'NONE'

NEW SPCOMPONENT
MAXA 100000
CATR SCOMPONENT /INS25 etc