MSS SP-58 Constant Spring Hanger

Yangzhou Tianshun Pipeline Technology Co., Ltd., founded in 2012, exports products to more than 40 countries around the world and has rich experience in international project delivery. MSS SP-58 Constant Spring Hanger is an export-specific product manufactured in strict compliance with the SP-58 standard of the Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), specially designed for international engineering projects, foreign-funded projects and EPC general contracting projects adopting American standard design specifications.

Interpretation of MSS SP-58 Standard

MSS SP-58 is the American national standard for Pipe Hangers and Supports, and also an authoritative standard widely adopted in the international engineering community, formulated by the Manufacturers Standardization Society of the Valve and Fittings Industry.

Core requirements of the standard:

▶  Specifies the design, manufacturing and testing requirements for constant force spring supports and hangers

▶  Clarifies technical indicators such as load constancy, materials, inspection and marking

▶  Is a supporting standard for API and ASME B31 series pipeline specifications

▶  Is a mandatory requirement for international EPC projects, foreign-funded projects and export projects

MSS SP-58 Constant Spring Hanger fully meets all technical requirements of this standard and can be directly used for engineering projects under the American standard system.

Technical Comparison: American Standard vs Chinese National Standard

MSS SP-58 Constant Spring Hanger is higher than domestic standards in terms of constancy, material traceability and inspection requirements, meeting the stringent requirements of international projects.

Product Technical Specifications

Special Requirements for American Standard Products and Our Solutions

Material Traceability

All steel materials are purchased from American standard certified steel mills

Each steel plate and round bar has a unique heat number

Provide complete Material Test Report (MTR)

100% traceable material chemical composition and mechanical properties

Welding Process Control

Conduct Welding Procedure Specification / Procedure Qualification Record (WPS/PQR) in accordance with AWS D1.1

Welders work with certificates and undergo regular assessments

100% Magnetic Particle Testing (MT) for main load-bearing welds

Welding records are fully archived, traceable to welder and date

Strict Factory Inspection

Prepare Inspection Test Plan (ITP)

Customers can specify Hold Points (H points) and Witness Points (W points)

Full stroke load test for each product, with test curves issued

Third-party inspection agencies (BV, SGS, TÜV) can attend on-site for witness

American Standard Coating System

Sandblasting derusting in accordance with SSPC-SP10

Epoxy zinc-rich primer + polyurethane topcoat, dry film thickness ≥120μm

Salt spray test ≥500 hours, meeting marine environment requirements

Coating test report available

Permanent Marking

Steel stamping on product body: model, load, displacement, heat number, production date

Stainless steel nameplate: company name, standard number, inspection mark

Clear and permanent marking, meeting project traceability requirements

Export Project Delivery Experience

Over the past 14 years, our MSS SP-58 Constant Spring Hanger has been successfully delivered to numerous international projects:

▶  Southeast Asia: Petrochemical projects in Singapore, Indonesia, Malaysia

▶  Middle East: Refinery projects in Saudi Arabia, UAE, Oman

▶  Africa: Power station projects in South Africa, Egypt, Algeria

▶  South America: Energy projects in Brazil, Argentina

▶  Europe and America: Supporting projects in the United States, the United Kingdom, Germany

Typical Cases:

▶  A 20 million tons/year refinery project in the Middle East: Supplied more than 800 sets of American standard spring supports and hangers, passed SGS inspection at one time

▶  An LNG terminal project in Southeast Asia: American standard low-temperature constant force hangers, passed BV third-party inspection

▶  An African power station project: Manufactured according to American standards, provided complete ITP and MTR documents

Quality Certification and Document System

Qualification Certifications

ISO 9001:2015 Quality Management System Certification

Special Equipment Manufacturing License (Pressure Pipeline Components)

Can cooperate with customers for PED, CE and other certifications

Delivery Document Package (Standard for American Standard Projects)

Material Test Report (MTR)

Welding Procedure Specification / Procedure Qualification Record (WPS/PQR)

Inspection Test Plan (ITP)

Load-displacement test curve for each product

Magnetic Particle Testing Report (MT Report)

Coating test report

Certificate of Compliance

Installation and Operation Manual (Chinese and English)

Exclusive Services for Export Projects

▶  Standard docking: Familiar with ASME B31.1/B31.3, API and other American standard systems, accurately understand technical requirements

▶  Document support: Provide all technical documents required for American standard projects, adjustable according to customer templates

▶  Inspection cooperation: Cooperate with customers or third-party inspection agencies (SGS, BV, TÜV, etc.) for factory inspection

▶  Packaging and transportation: Export-specific fumigation-free wooden box packaging, suitable for sea and air transportation

▶  Document service: Provide full set of export documents including certificate of origin, commodity inspection certificate, customs declaration materials

▶  Technical support: Chinese and English technical support, cooperate with EPC project technical clarification

▶  Delivery guarantee: Priority production scheduling for export projects to ensure on-time delivery

MSS SP-58 Constant Spring Hanger is a reliable choice for international engineering projects. We not only provide products compliant with American standards, but also provide full-process services from technical docking, document preparation, inspection cooperation to export logistics, ensuring smooth delivery of your export projects.