Super Duplex S32750 Spacer and Spade (ISO 27509 CL2500) for High-Pressure Pipeline Systems
Haihao Group successfully delivered a batch of super duplex S32750 spacer and spade ISO 27509 CL2500 products to a Singapore-based client. These components are critical for pipeline isolation in high-pressure systems, ensuring both operational safety and maintenance efficiency.
Manufactured in strict accordance with ISO 27509, the order covered multiple sizes and met rigorous inspection and certification requirements.
Order Specifications (Project Overview)
- Product: Spacer and Spade (Line Blind)
- Sizes: 4″, 6″, 8″, 12″, 14″, 16″
- Pressure Rating: CL2500
- Standard: ISO 27509
- Material: Super Duplex ASTM A240 UNS S32750
Each super duplex S32750 spacer and spade ISO 27509 CL2500 unit is designed for reliable sealing and safe isolation in demanding industrial environments.
Super Duplex ASTM A240 UNS S32750 ISO 27509 spade manufactured by Haihao Group
What Is a Spacer and Spade (Line Blind)?
A spacer and spade-also known as a line blind-is a mechanical device used to isolate sections of a pipeline:
- Spade (Paddle Blank): Completely blocks flow
- Spacer (Paddle Spacer): Allows flow when installed
This dual-function design enables quick switching between operation and maintenance modes without removing the entire flange assembly.
For high-risk systems, the super duplex S32750 spacer and spade ISO 27509 CL2500 is the preferred solution due to its strength and corrosion resistance.
Why Choose Super Duplex S32750 for Spacer and Spade?
Superior Corrosion Resistance
- PREN ≥ 40.0, ideal for seawater and chloride environments
- Excellent resistance to pitting and crevice corrosion
Optimized Microstructure
- Balanced austenite + ferrite structure ensures strength and toughness
High Mechanical Performance
- Higher yield strength than austenitic stainless steels
- Reliable performance under CL2500 high-pressure conditions
These properties make the super duplex S32750 spacer and spade ISO 27509 CL2500 especially suitable for offshore and subsea systems.
Super Duplex ASTM A240 UNS S32750 ISO 27509 spacer manufactured by Haihao Group
Full Quality Control & Inspection Documentation
To meet strict project specifications, Haihao Group provided a complete inspection package:
Material Verification
- Chemical composition analysis
- PMI (Positive Material Identification)
- Ferrite content & metallographic examination
Mechanical Testing
- Tensile test report
- Hardness test report
- Impact testing at -46°C
Corrosion & Integrity Testing
- Pitting corrosion resistance test
- Non-destructive testing (PT, UT)
Documentation Package
- Chemical composition report
- Mechanical test reports
- PMI report
- Heat treatment report
- NDT reports
Every super duplex S32750 spacer and spade ISO 27509 CL2500 product is fully traceable and compliant with international standards.
Applications in Critical Industries
These spacer and spade components are widely used in:
- Offshore oil & gas platforms
- LNG and subsea pipelines
- Petrochemical plants
- High-pressure valve isolation systems
In such environments, the super duplex S32750 spacer and spade ISO 27509 CL2500 ensures safe operation, quick isolation, and long service life.
S32750 vs S31803: Which One Should You Choose?
| Property | S32750 (Super Duplex) | S31803 (Duplex) |
|---|---|---|
| PREN | ≥ 40 | ~35 |
| Corrosion Resistance | Very high | High |
| Strength | Higher | Moderate |
| Application | Offshore / High chloride | General industrial |
👉 For aggressive environments, S32750 spacer and spade is the better long-term investment.
Why Global Clients Choose Haihao Group
- ✔ Proven experience in high-pressure piping components
- ✔ Strict compliance with ISO, ASTM, ASME standards
- ✔ Complete inspection and certification support
- ✔ Fast delivery to Southeast Asia and global markets
- ✔ Custom manufacturing available
📩 Request a quote today for Super Duplex spacer and spade solutions tailored to your project.
FAQ
What is the function of a spacer and spade?
A spacer and spade is used to isolate pipeline sections safely, allowing maintenance without dismantling the system.
Why use Super Duplex S32750 material?
It offers superior corrosion resistance, high strength, and long service life in harsh environments like offshore systems.
What standard applies to spacer and spade?
ISO 27509 is commonly used for high-pressure flange sealing and line blind components.
Can you provide full inspection reports?
Yes, Haihao Group provides PMI, NDT, mechanical testing, and full certification documents.