Dismantling Joint Rigid Type Flanged – China Manufacturer & Supplier

Premium Quality Rigid Flanged Dismantling Joints from China

As a professional China dismantling joint rigid type flanged manufacturer, Yuanjd Valve specializes in the design, production, and supply of high-performance rigid dismantling joints for a wide range of pipeline applications. Our rigid flanged dismantling joints are engineered to serve as the “ultimate connector” of piping systems —providing adjustable-length connections that dramatically simplify the installation, maintenance, and removal of valves, pumps, flow meters, and other flanged equipment without requiring costly pipeline modifications or extended system downtime.

A rigid flanged dismantling joint is a double-flanged fitting featuring a telescopic action between a flanged spigot and a flange adaptor. Its defining characteristic is the use of continuous tie rods that run through the entire assembly, locking the joint at the required length. Unlike non-rigid (flexible) dismantling joints, the rigid type features long tie rods passing through the whole dismantling joint, enabling it to withstand significant axial forces while maintaining a fixed, end-load-resistant connection. This design makes the rigid type the preferred choice for pipeline systems that must withstand large loads and harsh working conditions.

The joint is secured by tightening high-tensile steel or stainless steel tie rods using only a spanner and torque wrench. With fewer tie rods than flange holes—and tie rods that also double as flange jointing bolts—installation is fast and straightforward, delivering a secure, rigid, fully end-load-resistant system with a pressure rating equal to that of the flange itself.

Key Design Features & Technical Advantages

• Adjustable Length – Accommodates up to 100mm (4″) longitudinal adjustment, allowing precise positioning and compensating for dimensional deviations in piping systems.

• Rigid, End-Load-Resistant Construction – Continuous tie rods lock the assembly at the required length, ensuring stable connection under high-pressure and high-load conditions.

• Quick & Easy Installation – Requires only a spanner and torque wrench to tighten tie rods; no special tools or welding needed.

• Independent Gasket Tightening – Studs independent of tie rods compress the gasket, ensuring long-term sealing performance unaffected by external loading.

• Corrosion Protection – Fusion bonded epoxy coating (min. 250–300 microns) or WRAS-approved coatings provide superior corrosion resistance.

Technical Specifications

Our rigid flanged dismantling joints are manufactured in strict accordance with leading international standards:

• Design Standards: EN 545, ISO 2531, AWWA C219

• Flange Standards: EN 1092-2, ISO 7005-2, ANSI B16.5, AWWA C207

• Testing Standards: EN 12266-1, ISO 5208

• Size Range: DN40 to DN4000+ (NPS 1.5″ to 144″+)

• Pressure Rating: PN10, PN16, PN25, up to PN64; Class 150 & Class 300

• Temperature Range: -10°C to +80°C (EPDM)

• Body Material: Ductile iron GGG40/GGG50 (EN-GJS-400-15 / 500-7)

• Gasket Material: EPDM or NBR

• Tie Rods: Galvanized steel (Grade 4.8/6.8/8.8) or stainless steel 304/316

• Coating: Fusion bonded epoxy, min. 250–300 microns

• Maximum Displacement: ±50mm

Applications & Industries

Rigid flanged dismantling joints are indispensable across multiple sectors:

• Water Supply & Distribution – Municipal water networks, pumping stations

• Wastewater & Sewage – Treatment plants, force mains

• Power Generation – Cooling water systems, plant utilities

• Industrial Piping – Chemical plants, manufacturing facilities

• Seawater Desalination – Reverse osmosis plants, intake/outfall systems

• Gas Distribution – Pipeline systems, metering stations

Primary applications include: simplifying the installation and removal of isolation valves, control valves, check valves, pump sets, pressure reducing valves, and flanged pipe fittings.

Why Choose Yuanjd Valve as Your China Dismantling Joint Rigid Type Flanged Manufacturer?

At Yuanjd Valve, we combine decades of manufacturing expertise with advanced production facilities and rigorous quality control systems. As a leading China rigid dismantling joint supplier, we are committed to delivering products that meet international quality standards—including EN 545, ISO 2531, and AWWA C219—while offering competitive factory-direct pricing.

The global dismantling joint market was valued at approximately US$394millionin2024\ast \ast andisprojectedtoreach\ast \ast US$ 547 million by 2031, growing at a CAGR of 4.8%. China remains the world‘s leading manufacturer of ductile iron pipe fittings, with specialized manufacturing clusters offering unrivaled advantages in cost, scale, and technological advancement. Yuanjd Valve leverages this ecosystem to provide our global clients with high-quality rigid dismantling joints at competitive prices—typically 15–30% lower than Western equivalents—backed by reliable delivery and responsive after-sales support.

Our rigid flanged dismantling joints feature:

• EN 545 / ISO 2531 / AWWA C219 compliant design

• Ductile iron GGG40/GGG50 construction for durability and longevity

• Adjustable length up to 100mm for precise installation

• Fusion bonded epoxy coating (min. 250 microns) for superior corrosion resistance

• Leakage Rate Class A (Zero leakage) – 100% testing before delivery

• ISO 9001:2015 certification – Quality management systems

• CE marking – Compliance with European market requirements

OEM & Customization Services

We offer comprehensive OEM and customization services, allowing you to specify materials, sizes, pressure ratings, flange standards, tie rod materials, and certifications that precisely match your industrial requirements. Whether you need ductile iron or carbon steel bodies, galvanized or stainless steel tie rods, or specialized coatings for corrosive environments—our engineering team can deliver tailored solutions for your specific project needs.

Contact Us

Partner with a reliable dismantling joint rigid type flanged manufacturer in China. Contact Yuanjd Valve today for product inquiries, technical support, or to request a quote. Our experienced team is ready to assist you with professional guidance and prompt service.