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.
Factory direct sale price ductile iron double flange dismantling coupling Pipe dismantling compensator supplier in Henan
