NACE AMPP SP21573-2025 管内表面熔接环氧树脂涂层、环焊接头和管件

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AMPP SP21573-2025

Issued May 19, 2025

reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording,

or otherwise) without the prior written permission of AMPP.

Fusion Bonded Epoxy Coating on Internal

Surface of Line Pipe, Girth Weld Joints and

Fittings

Provided by Accuris under license with NACE

No reproduction or networking permitted without license from Accuris

AMPP values your input. To provide feedback on this standard, please contact: standards@ampp.org

AMPP SP21573-2025

Fusion Bonded Epoxy Coating on Internal

Surface of Line Pipe, Girth Weld Joints and

Fittings

This AMPP standard represents a consensus of those individual members who have reviewed this document, its scope,

and provisions. Its acceptance does not in any respect preclude anyone, whether he or she has adopted the standard or

not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not in conformance with

this standard. Nothing contained in this AMPP standard is to be construed as granting any right, by implication or other-

wise, to manufacture, sell, or use in connection with any method, apparatus, or product covered by Letters Patent, or as

indemnifying or protecting anyone against liability for infringement of Letters Patent. This standard represents minimum

requirements and should in no way be interpreted as a restriction on the use of better procedures or materials. Neither

is this standard intended to apply in all cases relating to the subject. Unpredictable circumstances may negate the use-

fulness of this standard in specic instances. AMPP assumes no responsibility for the interpretation or use of this stan-

dard by other parties and accepts responsibility for only those ofcial AMPP interpretations issued by AMPP in accor-

dance with its governing procedures and policies which preclude the issuance of interpretations by individual volunteers.

Users of this AMPP standard are responsible for reviewing appropriate health, safety, environmental, and regulatory

documents and for determining their applicability in relation to this standard prior to its use. This AMPP standard may not

necessarily address all potential health and safety problems, or environmental hazards associated with the use of mate-

rials, equipment, and/or operations detailed or referred to within this standard. Users of this AMPP standard are also

responsible for establishing appropriate health, safety, and environmental protection practices, in consultation with ap-

propriate regulatory authorities, if necessary, to achieve compliance with any existing applicable regulatory requirements

prior to the use of this standard.

CAUTIONARY NOTICE: AMPP standards are subject to periodic review and may be revised or withdrawn at any time in

accordance with AMPP technical committee procedures. AMPP requires that action be taken to reafrm, revise, or with-

draw this standard no later than ve years from the date of initial publication and subsequently from the date of each

reafrmation or revision. The user is cautioned to obtain the latest edition. Purchasers of AMPP standards may receive

current information on all standards and other AMPP/NACE/SSPC publications by contacting AMPP Customer Support,

15835 Park Ten Place, Houston, Texas 77084-5145 (Tel: +1-281-228-6200, email: customersupport@ampp.org).

Document History:

2025-05-19: Issued by AMPP Standards Committee (SC) 04 – Linings & Internal Coatings

Provided by Accuris under license with NACE

No reproduction or networking permitted without license from Accuris

AMPP SP21573-2025

Fusion Bonded Epoxy Coating on Internal

Surface of Line Pipe, Girth Weld Joints and

Fittings

Foreword, Rationale ........................................................................................................................................................4

Referenced Standards and Other Consensus Documents .............................................................................................4

Section 1 Scope ........................................................................................................................................................6

Section 2 Denitions .................................................................................................................................................6

Section 3 Coating System .........................................................................................................................................7

Section 4 Coating Material ........................................................................................................................................7

Section 5 Applicator Procedure Specication (APS)...............................................................................................11

Section 6 Procedure Qualication Trial (PQT) and Pre-Production Trial (PPT) ......................................................13

Section 7 Surface Preparation ................................................................................................................................14

Section 8 Coating Application .................................................................................................................................16

8.1 Primer Application .....................................................................................................................16

8.2 Pre-heating of Pipes, Custom-made Pipe Spools, and Fittings ................................................16

8.3 Pre-heating of Field Girth Weld Joints ......................................................................................16

8.4 FBE Application .........................................................................................................................17

Section 9 Coating Inspection and Testing ...............................................................................................................18

Section 10 Coating Repair ........................................................................................................................................21

Section 11 Documentation and Marking ...................................................................................................................21

Section 12 Handling, Storage, and Shipping ............................................................................................................22

TABLES

Table 1 Minimum Properties of the Epoxy Powder Provided in the Batch Certicate from the Supplier ...............8

Table 2 FBE Qualication Test Requirements .....................................................................................................10

Table 3 PQT Testing Requirements .....................................................................................................................13

Table 4 Production Inspection and Testing Requirement .....................................................................................19

Table 5 Production Testing Requirements ...........................................................................................................20

Provided by Accuris under license with NACE

No reproduction or networking permitted without license from Accuris

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标签： #接头 #管件 #环氧树脂

摘要：

本页面深入解读 NACE AMPP SP21573-2025 标准，该标准专门规范管道内表面熔接环氧树脂涂层、环焊接头及管件的工艺要求与质量控制。内容涵盖涂层材料选择、表面处理、施工参数、检测方法以及接头与管件的兼容性设计，适用于油气、化工及水处理行业的管道防腐工程。通过遵循该标准，用户可有效提升管道内壁的抗腐蚀性能与长期运行可靠性，确保环焊处的涂层完整性及管件的密封耐久性。无论是工程人员、质检专家还是采购管理者，都能在此找到从涂层施工到验收的全流程技术要点与合规指南。

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NACE AMPP SP21573-2025 管内表面熔接环氧树脂涂层、环焊接头和管件

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