CJ/T 450-2014
Pneumatic gas/air ratio adjustment devices for gas-burning appliances (English Version)

Standard No.

CJ/T 450-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

Professional Standard - Urban Construction

Latest

CJ/T 450-2014

Scope

This standard specifies the terms and definitions, classification and grouping, structure and materials, requirements, test methods, inspection rules, Labelling, installation and operating instructions as well as packaging, transport and storage. This standard is applicable to proportional regulating devices that indicate that the maximum working pressure is not greater than 50 kPa, the nominal size is not greater than DN250, use urban gas specified in GB/T 13611, change the gas pressure by air pressure and can be tested independently. The proportional adjustment device that changes the air pressure from the gas pressure can be implemented with reference to this standard. This standard does not apply to mechanical linkage proportional adjustment devices and electronically controlled proportional adjustment devices.

CJ/T 450-2014 Referenced Document

• CJ/T 222-2006 Quality assessment procedures and test rules for gas-burning appliances for domestic use
• GB 14536.1-2008 Automatic electrical controls for household and similar use.Part 1:General requirements
• GB 15092.1 Switches for appliances—Part 1:General requirements
• GB 4208 Degrees of protection provided by enclosure(IP code)
• GB/T 12716 Pipe threads with the thread angle of 60 degrees where pressure-tight joints are made on threads
• GB/T 13611 Classification and basic characteristics of city gas*， 2018-03-15 Update
• GB/T 15530.1 Cast copper alloy integral flange
• GB/T 15530.2 Copper alloy welding neck flanges
• GB/T 15530.3 Copper alloy plate flanges for brazing or welding
• GB/T 15530.4 Copper alloy hubbed slip-on flange for brazing or welding
• GB/T 15530.5 Loose plate flange in steel with a plate collar in copper alloy for brazing or welding
• GB/T 15530.6 Loose plate flange in steel with a copper pipe or aweld-neck collar in copper alloy for welding
• GB/T 15530.7 Copper alloy blank flanges
• GB/T 15530.8 Specifications for copper alloy and composite flanges
• GB/T 16411-2008 Universal test methods of gas burning appliances for domestic use
• GB/T 1690-2010 Rubber,vulcanized or thermoplastic.Determination of the effect of liquids
• GB/T 17241.1 Synotic table for cast iron pipe flanges
• GB/T 17241.2 Cast iron pipe blank flanges
• GB/T 17241.3 Hubbed threaded cast iron pipe flanges
• GB/T 17241.4 Hubbed slip-on-welding and hubbed socket welding cast iron pipe flanges
• GB/T 17241.5 Loose hubbed cast iron pipe flanges for lapped pipe end
• GB/T 17241.6 Integral cast iron flanges
• GB/T 17241.7 Specifications for cast iron pipe flanges
• GB/T 191 Packaging.Pictorial marking for handling of goods
• GB/T 3091 Welded steel pipes for low pressure liquid delivery*， 2015-09-11 Update
• GB/T 5013.1 Rubber insulated cables of rated voltages up to and including 450/750 V.Part 1:General requirements
• GB/T 5023.1 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V.Part 1:General requirements
• GB/T 7306.1 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 1:Parallel internal and taper external threads
• GB/T 7306.2 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 2:Taper internal and external threads
• GB/T 7307 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads
• GB/T 9114 Hubbed screwed steel pipe flanges
• GB/T 9144 General purpose metric screw threads--Preferable plan

CJ/T 450-2014 history

• 2014 CJ/T 450-2014 Pneumatic gas/air ratio adjustment devices for gas-burning appliances