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Duplex Quick Release Coupling (QRC) – Strength. Resistance. Reliability in Chloride-Rich Environments

Perfect Engineers offers high-integrity Duplex and Super Duplex Quick Release Couplings (QRCs) that are designed for extreme corrosion resistance and mechanical strength. Made from Duplex Stainless Steel (UNS S31803) and Super Duplex (UNS S32750/S32760), these couplings outperform traditional stainless steels in demanding environments involving seawater, brine, acids, and high mechanical stress.

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Why Choose Duplex QRCs?

Exceptional resistance to chloride pitting and stress corrosion cracking
Higher tensile strength than standard SS 316
Ideal for offshore, desalination, and harsh chemical plants
Long lifecycle under high pressure and temperature

Duplex QRC Types Available

ISO A/B and Flat Face QRCs
Screw-Type and High-Pressure Couplers
Double Shut-Off and Straight-Through Models
Hose Barb, Threaded, Weld-End and Panel Mount

Technical Specifications

Parameter	Specification
Size Range	1/4″ to 2″
Pressure Rating	Up to 15,000 PSI
Material Grade	Duplex S31803 / Super Duplex S32750 / S32760
Temperature Range	-50°C to +300°C
Seals	Viton, PTFE, EPDM
Threads	BSP, NPT, Metric, UNF
Compliance	ISO 7241-A/B, ISO 16028, DIN, ANSI

Contact Us for Pricing & OEM Support

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+91-9004860491

E-mail

[email protected]

Website

www.perfectqrc.com

Why Duplex QRCs from Perfect Engineers?

Machined from certified Duplex/Super Duplex barstock
High-yield strength for extreme pressure cycles
100% leak-tested with optional third-party inspection
Supplied with MTCs, pressure reports, export-ready packaging

Global Reach

Exports To:

UAE, Qatar, Oman, Vietnam, Germany, Egypt, South Africa, Malaysia

Domestic Supply:

Mumbai, Pune, Ahmedabad, Coimbatore, Delhi, Hyderabad, Chennai, Ludhiana

FAQs

What’s the advantage of Duplex over SS 316?

Duplex offers better resistance to pitting, higher strength, and longer service life in aggressive media.

Can I use Duplex QRCs for seawater?

Yes. Especially Super Duplex variants are ideal for continuous exposure to seawater.

Do you supply these QRCs with pressure test reports?

Yes. We provide complete documentation including MTC, hydrotest, and batch traceability.

Are these compatible with existing ISO 7241 systems?

Absolutely. All couplings are ISO/DIN/SAE compliant and interchangeable.

Do you offer duplex hose end or weld-end versions?

Yes, including customized ends, adaptors, and flange-mount variants.

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We serve purchase heads, OEMs, and end-users with tailored Duplex Quick Release Coupling (QRC) – Strength. Resistance. Reliability in Chloride-Rich Environments recommendations and commercial pricing.

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