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Customizable Flexible Manual Shutoff Rubber Expansion Joint

Name: Customizable Flexible Manual Shutoff Rubber Expansion Joint
Brand: Gongyi xinhuafeng pipeline equipment co. LTD.
Rating: 4.9 (37 reviews)

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Payment Type:

L/C,T/T,D/A

Incoterm:

FOB,CIF,EXW,CFR,DDP,DDU

Min. Order:

1 Piece/Pieces

Transportation:

Ocean,Land,Air

Port:

QingDao,TianJin,ShangHai

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Brand: Xinhuafeng

Certification: ISO9001

Place Of Origin: China

Processing Service: Cutting

Media: Water

Applied Range: Water, oil, natural gas, petrochemical industry

Supply Ability & Additional Information

Packaging: wooden case packing

Transportation: Ocean,Land,Air

Supply Ability: 100000 Piece/ per Month

Certificate: ISO9001

Port: QingDao,TianJin,ShangHai

Payment Type: L/C,T/T,D/A

Incoterm: FOB,CIF,EXW,CFR,DDP,DDU

Packaging & Delivery

Selling Units:: Piece/Pieces

Package Type:: wooden case packing

Picture Example:

Customizable Thread Union Rubber Expansion Joint for Water/Oil/Gas Applications

Product Overview

RUNXING’s Thread Union Rubber Expansion Joint (also known as threaded Rubber Joint for water/oil/gas) is a high-performance flexible connection solution engineered to absorb pipeline vibrations, compensate for axial, lateral and angular displacements, and reduce noise in fluid handling systems. Our Threaded Flexible Connection is specially designed for water, oil, and gas transmission pipelines, providing reliable sealing and long-lasting performance in industrial, municipal, and commercial applications. As a core product of RUNXING, the Customizable Thread Union Rubber Expansion Joint combines superior rubber elasticity with robust threaded union design, ensuring easy installation and adaptation to diverse working conditions.

Unlike standard rigid pipeline connections, our Threaded Rubber Expansion Joint effectively mitigates stress caused by temperature changes, pressure fluctuations, and mechanical movement, protecting pipelines, pumps, valves, and other equipment from damage. This versatility makes it an essential component for global buyers seeking durable, cost-effective pipeline connection solutions.

Product Features and Advantages

Superior Flexibility: The Threaded Rubber Flexible Connection features high-elasticity rubber body that absorbs pipeline vibration and reduces noise by up to 80%, protecting equipment from fatigue damage.
Wide Medium Compatibility: Suitable for water (drinking water, sewage), oil (mineral oil, hydraulic oil), and gas (natural gas, compressed air) transmission, meeting diverse industrial needs.
Robust Threaded Union Design: Precision-machined threaded union ensures secure connection, easy installation and disassembly, no special tools required.
Corrosion Resistance: Rubber material is resistant to chemical corrosion, aging, and ozone, while metal components are treated with anti-rust coating for long service life (10+ years under normal use).
Cost-Effective: Reduces maintenance costs by minimizing pipeline damage and downtime, lower total cost of ownership compared to rigid connections.
Compliance with International Standards: Manufactured to meet global quality benchmarks, ensuring reliability for international projects.

Working Principle

The Threaded Expansion Connection utilizes the elasticity of the rubber body to compensate for pipeline displacements. When the pipeline expands, contracts, or shifts due to temperature, pressure, or mechanical movement, the rubber joint deforms elastically to absorb the displacement, while the threaded union maintains a tight seal to prevent fluid leakage. This principle ensures the pipeline system operates stably without excessive stress on connected equipment.

Step-by-Step Installation Guide

Inspect the Thread Union Rubber Expansion Joint for any damage (e.g., cracks in rubber, deformed threads) before installation; ensure the product matches the pipeline specifications (size, pressure rating).
Clean the pipeline ends and threaded surfaces to remove dust, rust, or debris; apply a small amount of anti-seize lubricant to the threads (avoid contact with rubber parts).
Connect one end of the joint to the pipeline by hand-tightening the threaded union, then use a wrench to tighten to the recommended torque (refer to technical specs for torque values).
Align the other end of the joint with the opposite pipeline, repeat step 3 to complete the connection; ensure the joint is not twisted or under excessive tension during installation.
Check the connection for tightness; conduct a pressure test (at 1.5 times the rated pressure) to confirm zero leakage before putting the pipeline into operation.
Regularly inspect the joint for wear, aging, or loose threads during routine maintenance; replace the joint if any damage is found.

Application Scenarios

Our Customizable Flexible Manual Shutoff Rubber Expansion Joint and Thread Union Rubber Expansion Joint are widely used across industries globally, including:

Municipal Water Supply & Drainage: Water treatment plants, municipal pipelines, sewage systems – compensates for pipeline displacement caused by ground settlement or temperature changes.
Oil & Gas Industry: Oil refineries, gas transmission pipelines, petrochemical plants – resistant to oil and gas corrosion, reduces vibration from pumps and compressors.
HVAC Systems: Commercial buildings, industrial facilities – absorbs vibration from chillers, boilers, and cooling towers, reduces noise pollution.
Manufacturing & Processing: Food & beverage, pharmaceutical, chemical processing – hygienic rubber options available for food-grade water applications.
Marine & Offshore: Shipbuilding, offshore platforms – resistant to saltwater corrosion, suitable for marine pipeline systems.

Value for Buyers

Reduced equipment maintenance costs: Minimizes pipeline and equipment damage, lowering downtime and repair expenses by up to 30%.
Improved operational efficiency: Eliminates pipeline stress, ensuring stable fluid flow and reducing energy loss.
Compliance with local regulations: Meets international safety and quality standards, avoiding project delays due to non-compliant components.
Long service life: Durable materials reduce replacement frequency, lowering long-term procurement costs.

Customization Options

We understand that global buyers have diverse requirements, so our Customizable Thread Union Rubber Expansion Joint offers flexible customization to meet your specific needs:

Size Customization: Non-standard sizes (beyond DN15-DN300) available based on pipeline specifications.
Material Customization: Rubber types (EPDM, NBR, NR, Viton®) tailored to the transmission medium (e.g., Viton® for high-temperature oil/gas).
Metal Component Customization: Stainless steel (SS304/SS316) or carbon steel with special coatings (e.g., anti-corrosion epoxy coating) for harsh environments.
Pressure Rating Customization: High-pressure versions (up to 4.0MPa) for industrial high-pressure systems.
Color Customization: Rubber body color can be customized for brand identification or safety requirements.

Production Process and Quality Control

Raw Material Inspection: All rubber and metal materials are tested for compliance with international standards before production (e.g., rubber hardness, metal tensile strength).
Rubber Mixing & Molding: Precision mixing of rubber compounds to meet medium compatibility requirements; molding the rubber body using high-pressure vulcanization for uniform density.
Threaded Union Machining: CNC machining of metal unions to ensure thread precision and dimensional accuracy.
Assembly: Manual assembly of rubber body and threaded unions, with strict alignment checks to ensure no assembly stress.
Quality Testing: 100% pressure testing (1.5x rated pressure) for each joint; random sampling for aging, vibration, and corrosion resistance tests.
Packaging & Labeling: Protective packaging to prevent damage during shipping; clear labeling with product specs, batch number, and certification information.

Our production facility operates under ISO 9001 quality management system, with full traceability of each product batch, ensuring consistent quality for every order.

Product Categories : Rubber Expansion Joint > Thread Union Rubber Expansion Joint

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