GB 13439-92cylinder valves
This national standard specifies the types and basic parameters of cylinder valves used in compressed gas cylinders. This standard is applicable to the production of cylinder valves for various types of chemical media, cryogenic media, steel cylinders and aluminum alloy cylinders.
This standard is divided into four parts: general, type, structural sizes and quality assurance.
1. General
1.1 The cylinder valve shall be designed and manufactured in accordance with this national standard.
1.2 The cylinder valve shall be manufactured by an enterprise with relevant manufacturing qualification for cylinder valves and its accessory facilities.
2. Type
2.1 According to the combustible gas and non-combustible gas, cylinder valve is divided into combustible gas cylinder valve and non-combustible gas cylinder valve two categories.
2.2 According to the media stored in the tank, the cylinder valve is divided into air cylinder valve and other gas media cylinder valve two categories.
2.3 According to the type of key, the cylinder valve is divided into internal thread cylinder valve, American standard cylinder valve and flat sealening cylinder valve three categories.
2.4 According to the shape of the valve outlet, the cylinder valve is divided into air-rinserting mouth type cylinder valve and mask type cylinder valve.
3. Structural Sizing
3.1 The inner thread type cylinder valve should comply with the provisions of GB/T 12345-2004 Internal Thread Cylinder Valve for Compressed Gas Cylinders.
3.2 The American-style cylinder valve should comply with the provisions of GB/T 12346-2004 American-Style Cylinder Valve for Compressed Gas Cylinders.
3.3 The flat sealing type cylinder valve should comply with the provisions of GB/T 12347-2004 Flat Sealing Type Cylinder Valve for Compressed Gas Cylinders.
4. Quality Assurance
4.1 All cylinder valves shall be provided and inspected in accordance with the requirements of their certificates of quality and safety.
4.2 The cylinder valve shall be inspected and accepted in strict accordance with the relevant provisions of GB/T 13403-2013 and GB/T 13404-2013.
4.3 The cylinder valve shall be marked, packaged, sealed and delivered in accordance with the relevant provisions of GB/T13405-2013.
4.4 The cylinder valve shall be tested in accordance with the relevant provisions of GB/T 17612-2008.
5. Marking
5.1 The markings on the cylinder valve shall include the following information:
A. Name and address of the manufacturer;
B. Name of product;
C. Valve type;
D. Standard number (GB 13439-92);
E. Manufacturing License Number;
F. Date of manufacture.
5.2 The cylinder valve shall be marked in accordance with the provisions of GB/T 13405-2013.
6. Packaging, sealing and delivery
6.1 The cylinder valve shall be packed in accordance with the relevant provisions of GB/T 13405-2013.
6.2 The packing shall be sealed and delivered in strict accordance with the relevant provisions of GB/T 13405-2013.
7. Implementation
This standard shall be implemented from August 1, 2015. GB 13439-84 is cancelled at the same time.
