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DN150 6 Inch PTFE Lined Single Sphere Rubber Expansion Joint with Control Rods
The DN150 (6 inch) single sphere rubber expansion joint is a premium flexible pipe connector engineered for corrosive chemical media, HVAC systems, and industrial piping. Available with PTFE (Teflon) inner lining for superior chemical resistance and integrated control rods for overstretch protection in high-pressure applications.
Key Features & Advantages
PTFE Lining Available: Full-contact Teflon inner lining shields the rubber body from aggressive acids, alkalis, and solvents. Extends service life in chemical processing and wastewater treatment applications.
Integrated Control Rods: Threaded steel tie rods with limit nuts prevent over-extension during pressure surges. Essential for unanchored piping and high-pressure systems.
Superior Anti-Corrosion Performance: Available with stainless steel SS304/SS316 flanges and hot-dip galvanized coating. Combined with PTFE lining for complete corrosion protection in harsh environments.
Dual Connection Options: Standard flanged ends per DIN/ANSI/JIS standards. Threaded (screwed) connection available for smaller sizes.
1.5x Test Pressure Certified: Every unit undergoes hydrostatic pressure testing at 1.5 times rated working pressure (PN16 tested at 24 bar). Test reports available upon request.
Multi-Directional Movement: Compensates for axial compression/elongation, lateral offset, and angular deflection simultaneously.
Wide Media Compatibility: EPDM / NBR / NR / Neoprene elastomer options for water, seawater, hot water, oil, weak acid, alkali, and chemical media.
Technical Specifications
Item
Details
Size
6 inch / DN150 (DN50-DN600 available)
Pressure Rating
PN10 / PN16 / PN25
Body Material
EPDM / NBR / NR / FKM with optional PTFE lining
Inner Lining
PTFE (Teflon), thickness 3-5mm (optional)
Flange Material
Q235 Carbon Steel / SS304 / SS316 / SS316L / HDG
Flange Standard
ANSI 150LB / DIN PN10-16 / JIS / BS
Connection Type
Flanged (standard), Threaded (optional)
Control Rods
Threaded steel tie rods with rubber grommets (optional)
Test Pressure
1.5 x PN (hydrostatic, 5-minute hold)
Working Temperature
-20°C to +120°C (based on rubber material)
Movement Capability
Axial ±10-15mm; Lateral ±10mm; Angular 6°
Typical Applications
Chemical processing plants — acid/alkali transfer lines with PTFE lining
Water treatment systems & pump rooms — corrosion resistant installation
Building HVAC systems — chillers, cooling towers, boilers with control rods
Marine & desalination systems — sea water resistant with stainless flanges
Industrial cooling & compressed air — vibration isolation with safety rods
Why Choose Us
ISO 9001 certified production with 1.5x hydrostatic pressure testing on every unit
PTFE lining and control rod customization available
20+ years manufacturing experience in rubber expansion joint solutions
OEM/ODM support with competitive factory pricing
Contact us with your pipe diameter, pressure class, media type, and temperature requirements. Please let us know the size, quantity, and application you require. Free sample available for qualified distributors.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
40000000-60000000
Employee Number:
100~150
Ecer Certification:
Active Member
The company adheres to the business philosophy of "customer satisfaction is our first duty, all employees are responsible for creating quality, continuous improvement sets new heights, honest service builds reputation", and wholeheartedly provides high-quality products and profes...
The company adheres to the business philosophy of "customer satisfaction is our first duty, all employees are responsible for creating quality, continuous improvement sets new heights, honest service builds reputation", and wholeheartedly provides high-quality products and profes...