JB/T 2203-1999 JB/T 2203-1999 Spring-loaded safety valve structure length JB/T2203-1999 Standard download decompression password: www.bzxz.net

ICS 23.060
Machinery Industry Standard of the People's Republic of China
IBT2203-1999
Spring type safety valve
Structural length
Structural length spring type safety valve1999-07-12 Issued
National Bureau of Machinery Industry
Implementation on 2000-11-01
JB.T2203-1999
The standard is a revision of B2203-77 "Structural length of spring type safety valve", and modifications have been made in the standard format, code, force unit and other aspects. Add the title "Scope" on the homepage, change the pressure unit.kgticm\ to MPa, change the nominal pressure symbol Pg to PN, and the nominal diameter symbol D to N. This standard replaces JF220377 from the date of implementation. This standard is proposed by the National Valve Standardization Technical Committee. This standard is not available for single units: Shanghai Valve, Hefei General Machinery Institute: The main drafters of this standard! Chen Yao, Gong Quan. Scope
Machinery Industry Standards of the People's Republic of China www.bzxz.net
Structural Length
Spring-loaded Safety Valve,
Structaral Jengthof This standard specifies the structure length of the type safety valve (hereinafter referred to as the simplified safety valve) JB 2203-1999
JB 2203-77
This standard is applicable to the nominal pressure PN1.032.0MPa, the nominal diameter DN10~200aum.L. Industrial equipment and pipeline safety valve. 1 Reduced length
2.1 The inlet is external and the outlet is internal. The micro-opening safety valve (Figure 1) The structural length shall be as specified in Table 1. Figure 1
Nominal diameter
Station doctor
Public selection KPNMPa
1.6、4.0
2.2Inlet is flange, outlet is internal explosion-proof connection (from 2); inlet and outlet are flange reverse connection [Figure 3) outlet is internal explosion-proof connection (Figure 4) of the member type, double micro-opening type (Figure 5) and full-opening type safety reading structural length shall be as specified in Table 2. National Machinery Industry Standard 1999-07-12 Approved 2000-01-01 Implementation
JB/T 2203—1999
L.6、4.6
JBT2213—1999
Double tender type
Nominal pressure FN
16.0.32.0
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