FJJ 211-1986 Jacketed Pipe Construction and Acceptance Specifications FJJ211-1986 Standard download decompression password: www.bzxz.net

The Ministry of Textile Industry of the People's Republic of China Standard Jacketed Pipe Construction and Acceptance Specification
FJJ211-86
Notice on the approval of the issuance of the "Jacked Pipe Construction and Acceptance Specification" 86 Fangjianzi No. 07
The "Jacked Pipe Construction and Acceptance Specification" has accumulated experience after five years of trial implementation, and entrusted Yizheng Chemical Fiber Industry United Company to make some supplements and revisions to the trial version. After discussion and approval by relevant units, it is now officially approved for promulgation and implementation. All units are requested to inform the Engineering Department of the Construction Bureau of our Ministry of Construction of their experience and opinions during implementation. Ministry of Textile Industry
Lanzhou 6, 1986
Ministry of Textile Industry of the People's Republic of China Standard Jacketed Pipe Construction and Acceptance Specification
FJJ211-86
Editor: Yizheng Chemical Fiber Industry United Company Approval: Ministry of Textile Industry
Implementation Date: January 1, 1987
Preparation Instructions
Technical Jacketed Pipes are widely used in petrochemical fiber industry. In 1980, the Ministry of Textile Industry organized Shanghai Petrochemical General Plant, the Fifth Installation Engineering Company of the Ministry of Nuclear Industry, the Design Institute of the Ministry of Textile Industry, the Construction Bureau of the Ministry of Textile Industry and other units to compile the Ministry-issued "Jacked Pipe Construction and Acceptance Technical Specification (Trial)" FJJ211-80. After five years of production practice experience, the specification has been partially revised and supplemented, adding melt pipe production; inspection, installation, commissioning of spring supports and hangers, and Freon detection technology. The relevant chapters in the compilation are as consistent as possible with the promulgated national standards "Industrial Pipeline Engineering Construction and Acceptance Specifications" Metal Pipe GBJ23582, "On-site Equipment, Industrial Pipeline Welding Engineering Construction and Acceptance Specifications" GBJ236-82; "Steel Weld Radiograph and Film Grade Classification Method XGB3323-82". The revision task is undertaken by Yizheng Chemical Fiber Industry United Company. The main personnel participating in the compilation are Zhang Guodong and Dong Ruifeng. After the original trial draft compilation team and relevant petrochemical plants, chemical fiber plants, design institutes, and textile machinery plants participated in the discussion and review, the final draft was finalized.
This regulation is managed by the Construction Bureau of the Ministry of Textile Industry, and the interpretation work is entrusted to Yizheng Chemical Fiber Industry United Company. Construction Bureau of the Ministry of Textile Industry
March 1986
Chapter 1
Chapter 2
Section 1
Section 2
Section 3
Section 5
Chapter 3
Section 1
Section 2
Section 3
Section 4
Section 5
Section 2
Section 3
Section 4
Chapter 5
Section 2
Section 3
Section 6
Section 1
Section 2
Section 3
Management General provisions for the inspection of pipes, pipe accessories, valves and spring supports and hangers
Inspection of steel pipes
Inspection of pipe accessories
Inspection of valves
Inspection of spring supports and hangers
Prefabrication of jacketed pipes
General provisions
Manufacturing of inner and outer pipes
Elbows, reducers, tees
Jacketed pipe flanges
Positioning plates
Inspection of jacketed pipe prefabricated parts.
General provisions.
Appearance inspection
Radiographic flaw detection inspection
Strength test and tightness test
Installation of jacketed pipes and accessories
Installation of jacketed pipes
Installation of compensators
Installation of pipe racks·
Contact pipe installation Jacketed pipe welding
Requirements for welders
Welding materials
Welding process requirements
Section 4bzxz.net
Welding quality inspection
Chapter 7
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Chapter 8
Tests of jacketed pipe system
General provisions
Hydraulic test
Air pressure test
Other tests"
Tests of inner pipes
Tests of outer pipes
Pipeline system tests
Purge of jacketed pipe system
Chapter 9 Acceptance of casing
Appendix Pickling and passivation of stainless steel welds
Chapter 1 General Provisions
Article 1.0.1 This specification applies to the construction and acceptance of process jacketed pipes in petrochemical and chemical fiber equipment. The working pressure of the jacketed pipe is ≤25×10°Pa (≤250kgf/cm) (gauge pressure, the same below), the working temperature is -20~350C, the material is carbon steel and stainless steel, and the types are two types: concealed type and exposed type of inner pipe welds. See Figure 1.0.1-1 and Figure 1.0.1-2. Contact
Figure 1.0.1-1 Barrier type of inner pipe welds
Figure 1.0.1-2 Exposed type of inner pipe welds
Article 1.0.2 The construction of the jacketed pipe shall comply with the provisions of the design documents. If the design needs to be changed, it must be approved by the design department. Article 1.0.3 The prefabrication and installation of jacketed pipes shall be carried out strictly in accordance with the construction procedures to ensure product quality. Article 1.0.4 The safety technology and labor protection of jacketed pipe construction and installation shall be implemented in accordance with the current relevant regulations [Note: Safety technical operating procedures can be found in the National Construction Engineering Bureau (80) Construction Engineering Labor No. 24]. Article 1.0.5 The insulation, cold preservation, corrosion protection, degreasing, pickling, passivation, etc. of jacketed pipes shall be in accordance with the design documents. Article 1.0.6
Different types of jacketed pipes have different production and installation requirements. The classification of jacketed pipes is shown in Table 1. Table 1 Classification of Jacketed Pipes
Design Pressure (P)
High Pressure Pipeline
Vacuum Pipeline
Medium Pressure Pipeline
Low Pressure Pipeline
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