GB/T 22654-2008Automatic steam traps - Technical specification (English PDF)

Foreword

Since the implementation of this standard, JB/T 9093-1999 "steam trap technology" obsolete. Appendix A of this standard is an informative annex. The standard proposed by China Machinery Industry Federation.

The standard valve by the National Standardization Technical Committee (SAC/TC188) centralized.

1 Scope

This standard specifies the steam trap parameters, technical requirements, test methods, test rules, signs and supply requirements and so on.

This standard applies to nominal pressure of not more than PN260, nominal size no greater than DN150, medium temperature is not more than 550 °C of mechanical type, Thermostatic Steam Traps and thermal power (hereinafter referred to as traps).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB 150 steel pressure vessels

GB/T 1047 pipe element DN (nominal size) of the definition and selection (GB/T 1047-2005, ISO 6708:1995, MOD)

GB/T 1048 conduit elements PN (nominal pressure) of the definition and selection (GB/T 1048-2005, ISO /CD7268.1996, MOD)

GB/T 1184-1996 shape and position tolerances without individual tolerance value (eqv ISO 2768-2. 1989)

GB/T 1220 stainless steel rods

GB/T 7306.1 55 ° sealing pipe threads - Part 1. the inner cylindrical thread and taper external thread (GB/T 7306.1-2000, eqv ISO 7-1:1994)

GB/T 7306.2 55 ° sealing pipe thread Part 2. internal Taper internal and external threads (GB/T 7306.2-2000, eqv ISO 7-1:1994)

GB/T 9113 (all parts) Integral steel pipe flanges

GB/T 9115 (all parts) welded steel pipe flange

GB/T 9117 (all parts) socket welding steel pipe flanges

GB/T 9124 steel pipe flanges

GB/T 12224 steel valves - General requirements (GB/T 12224-2005, ASTMB16.34a.1998, NEQ)

GB/T 12225 General Valve copper alloy castings

GB/T 12226 General Valve gray iron castings

GB/T 12227 General Valve iron castings

GB/T 12228 Universal valves carbon steel forgings

GB/T 12229 Universal valves carbon steel castings

GB/T 12230 Universal valves stainless steel castings

GB/T 12250 steam traps term, sign, structure length (GB/T 12250-2005, ISO 6552. 1980, NEQ)

GB/T 12251 Test method for steam traps (GB/T 12251-2005, ISO 6948. 1981, NEQ)

GB/T 12716 60 ° sealing pipe thread (GB/T 12716-2002, eqvASMEB1.20.1.1992)

GB/T 17241.6 whole cast iron pipe flanges (GB/T 17241.6-1998, neq ISO 7005-2. 1988)

GB/T 17241.7 cast iron pipe flanges (GB/T 17241.7-1998, neq ISO 7005-2. 1988)

JB/T 106 valves and painted signs