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Introduction
8 \# [% p z) k# A/ z. S, X# c# WThis booklet has been written as an introduction to and a
1 u5 Y) a; @2 N2 u5 m( G6 Csource of general information on pipe joints.
' w! e, n+ i3 fThe flanged joint appears deceptively simple but in fact the
& y/ C/ P, z6 B, v, m0 ^' `science of flanges and joint sealing is complex and continuously
! t/ v5 n2 c+ B4 Y8 \developing. Sound joints are critical to piping integrity and
: e1 i* D) I5 V ]6 Yplant safety.. l) e" _# i/ }: y
A pipe joint thus relies on the skill and application of the fitter
8 ?) Z6 V: V. J) V uwho puts it together. Correct selection of materials, application6 M- v# s9 N/ F5 m# S8 i
of procedures, correct use of tools combined with the fitter’s
% |; e& P7 ?2 R3 U8 |7 |skill are all required to ensure a joint of maximum integrity.
; u0 H* h2 p, \% Q( W' QBut mistakes have happened; choosing the wrong gaskets,( C- t u4 h* e1 i
using the wrong studbolts. Such mistakes cannot be ignored.# R$ ?& a3 z( w7 K* m6 k
The purpose of this booklet is therefore to increase understanding
# a( r+ e% f5 w- }about pipe joints; from pipe specifications and how to
8 Y# O/ E- G4 o! t! J. zuse them, to studbolts and how to identify them.With increased
" l+ g" Y. }& l& Z) }$ o8 nawareness and knowledge, it is expected that mistakes will be1 e# u! Y& O# `4 q/ u2 V
prevented. |
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发表于 2010-11-22 11:01:13
