Cast Iron Ductile Ball Joint for Water Supply Project
High Pressure 1.6MPa Ductile Iron Flange Expansion Joint (VSSJA-2 Type)
Product Overview
Chemical Pipeline B2f Double Flange Expanded Metal Disassembly Joint
Product Description
The double flange limited expansion joint consists of main components, sealing rings, gland, telescopic short pipe and other essential parts. Building upon the original performance of loose sleeve expansion joints, this design incorporates a limit device with double nut locking at maximum expansion. The pipeline can freely expand within allowable limits, and once exceeding maximum expansion, ensures safe pipeline operation - particularly valuable for vibration-prone or slightly inclined and bending pipeline connections.
Core Functional Roles
- Displacement Compensation and Stress Elimination - Absorbs axial displacement from temperature changes (-30℃ to 350℃) in pipes (up to ±100mm per EJMA IV standard), preventing leakage at flange sealing surfaces
- Vibration Buffering - Mitigates mechanical vibrations from pumps and compressors (≥90% damping efficiency in nuclear applications), protecting sensitive equipment
- Installation Alignment Correction - Spherical seal design allows ±5° angular deflection, compensating for alignment errors during pipe construction
Data above is for reference only. Please contact us for exact specifications and pricing.
Packaging & Shipping
Each package includes a valid certificate of product conformity with product name, marking, production date, manufacturer details, trademark, and implementation standard number. We ensure complete delivery of goods to customers.
Product Details
Double flange limited expansion joints are manufactured from Q235 carbon steel, stainless steel, cast steel, ductile iron and other materials. Different materials and models are selected based on specific application requirements.
Company Information
Established in 1985, our factory integrates design, manufacturing, processing and sales operations. Our main product series include rubber expansion joints, bellows expansion joints and flexible metal hoses, widely used in petroleum, chemical, metallurgy, power, construction, thermal power, water supply and related industries.
Henan Zhicheng Valve Fittings Manufacturing Co., Ltd. is a professional manufacturer specializing in the research, development, production, and sales of high-quality pipeline fittings, focusing on products such as rubber joints, disassembly joints, and compensators.
Our factory strictly adheres to the ISO 9001 quality management system, with every link from raw material procurement to finished product shipment undergoing strict quality control. Our rubber joints and pipe fittings comply with industry standards (AWWA, EN, GB, etc.), ensuring high durability and excellent performance.
Frequently Asked Questions
Are you a trading company or manufacturer?
We are manufacturers of rubber expansion joints, bellows, flange adaptors and flanges with over 14 years of experience.
Do you have a product catalog?
Yes, we have a comprehensive catalog. Please provide your email or instant messenger details, and we will send it to you.
Can you provide drawings and technical data?
Yes, our professional technical department will design and provide detailed drawings and technical specifications.
Do you provide samples? Is it free or charged?
Yes, we can offer samples free of charge, but shipping costs are covered by the customer.
Can products be manufactured to customer requirements?
Yes, while the specifications stated are standard, we can design and manufacture according to specific customer requirements.
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