JB/T 9080.1-1999 JB/T 9080.1-1999 PN0.1MPa90° welded aluminum elbow JB/T9080.1-1999 Standard download decompression password: www.bzxz.net

ICS 71,10.20
Machinery Industry Standard of the People's Republic of China
JB/T 9090.1--1999
PN0.1MPa90° Welded aluminium elbow pipe
PNo.1 MPa 9o Welded aluminium elbow pipes1999-07-12 Issuedwww.bzxz.net
State Machinery Industry Bureau
2000-01-01 Implementation
JB/T9080.1—1999
This standard is a revision of 7.B17602790PN0.1MPa90 Welded aluminum elbow pipe". During the revision, the original standard was revised, and the main technical content remained unchanged. This standard replaces 2B176027—90 from the date of implementation. This standard is proposed and approved by the Technical Committee for Standardization of Gas Separation and Liquefaction Equipment. The drafting unit of this standard is Hangzhou Oxygen Generator Group Co., Ltd. The main drafters of this standard are Mi Lunhua and Tang Tanchen. This standard was first issued in August 1980.
Machinery Industry Standard of the People's Republic of China
PNO.1 MIPa 90° Welded aluminum elbow pipe
PN0.1 MPa 90* Welded alamllum elbow pipcsJB/T9080.1-1999
Replaces 2D J76 027.-90
This standard specifies the type and size, technical requirements, marking, packaging, transportation and application of 9° aluminum elbows for air separation equipment. It is suitable for welded aluminum elbows used on nominal pressure (P1 to 0IM) pipelines: The referenced standards
list the approved provisions contained in the provisions, which are referred to in this standard to constitute the provisions of this standard. When this standard is revised, the versions shown are valid: All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. JI3 1580-1975 Requirements for welding containers 3 Type and size
3.1 The type and size of the elbow shall be determined according to Figure 1 and Table 1, 3.2 Marking
Nominal diameter DN-500mm, nominal pressure PV=D.1MPa, material The 90 coal-joined aluminum elbow pipe with LF2 material is marked as: pipe DN500PN0.1-1.P2JD/T9081.1-1999 Figure 1
Guohao Machine Board Industry Bureau 1999-(7-12 approved 2000-01-01 implementation
Nominal diameter
【175
Note: The squeeze in the brackets should not be used as much as possible. 4 Technical requirements||tt ||4.1 The tolerance of the dead circumference of the elbow shall be in accordance with the provisions of Table 2. DN
Outer length
JB 9080.1-1999
>250-500
>500-800
4.2 The difference between the maximum inner diameter and the minimum inner diameter of the bent end face is shown in Figure 2, which shall be less than 1% of its nominal diameter, 3
14,50
>80D-1000
JD.T9080.1-1999
4.3 The materials used for the pipe are LF2, LF21, LF4, and must comply with the relevant national or industry standards, and have a material certificate. If there is no material certificate, it must be tested and meet the relevant standards before it can be used. 4.4 The outer surface of the pipe should not have obvious wrinkles or scratches. Grease and other organic substances must be removed from the inner and outer surfaces. There should be no scratches or flying objects.
4.5 All pipes must be inspected by X-ray. The quality of the welding shoes should meet the requirements of H/T15B. 4. The thickness of the bend pipe should not be reduced by 10%. 5. Marking, marking, transportation and storage
5.1 Marks should be made or engraved (for wall thickness less than 5mm) on the obvious parts of the bend. The inner surface is as follows: Nominal diameter:
- Specific pressure:
- Material brand.
5.2 The batches of pipes should be packed in semi-solid wooden boxes. There should be no relative movement between the bends in the box. 5.3 The water tank should not be crushed during transportation. 5.4 The pipes should be stored in a clean, dry and oil-free room.
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