Single Sphere Rubber Expansion Joint EPDM NBR Flange DIN ANSI JIS DN15-DN4000 Control Rods

Product Description:

The Liwei Single Sphere Flexible Rubber Expansion Joint is a high-performance pipeline compensator engineered for media resistance, sealing and leak-free performance, multi-standard compatibility, weather resistance and long service life. The EPDM, NBR, Neoprene (CR), Natural Rubber and FKM rubber body options deliver strong oil resistance, acid and alkali resistance, corrosion resistance and a wide temperature resistance from -30 °C to 150 °C. The single sphere construction absorbs axial, lateral and angular movement, dampens vibration and reduces pipeline noise, and the optional tie rods / control rods / limit rods prevent over-extension and pipe pull-out under high pressure. The molded, hand-wound and steel wire reinforced manufacturing process provides a durable, leak-free and long lasting connection.

Features & Advantages:

• EPDM, NBR, Neoprene (CR), Natural Rubber and FKM body material options for different media.
• Leak-free molded single sphere design with precise dimensional tolerance and zero leakage.
• Oil resistant, acid and alkali resistant, corrosion resistant, seawater and fuel compatible.
• Optional control rods / tie rods / limit rods to prevent pipe pull-out and over-extension.
• Multi-standard flanges: DIN, ANSI 150 / Class 150, JIS 10K, BS, PN6-PN40 universal compatibility.
• Weatherproof, UV resistant and epoxy / powder coated for outdoor and exposed piping systems.
• Molded, hand-wound (wrapped) and steel wire reinforced manufacturing process for durability.
• Food grade and pharma grade material available for drinking water and clean process lines.

Applications:

• Chemical and petrochemical plants (acid, alkali and solvent lines)
• HVAC systems and pump connections
• Marine, ship building and seawater pipelines
• Water supply, drainage and wastewater treatment plants
• Petroleum, mining and metallurgical manufacturing industry
• Food, beverage, pharmaceutical and drinking water systems
• Power plant, refinery and high temperature steam piping

Technical Parameters:

Manufacturing Process:

• Molded and hand-wound (wrapped) vulcanized single sphere body.
• Galvanized steel wire and multi-layer nylon cord fabric reinforcement.
• In-house dedicated rubber mixing center with real materials, high rubber content.

Advantages:

• Established for 36 years, our technical personnel have rich experience and expertise in the industry.
• High-quality finishing flange and bright, smooth spherical appearance.
• Leak-free sealing performance with strict pressure and specification testing.
• Multi-standard flange design for universal DIN / ANSI / JIS compatibility.
• Our company participated in the drafting of the national standard GB/T26121-2010 of "Flexible Rubber Joints".
• Utility model patent flexible rubber joint. Patent number: 032418558.

Support and Services:

• Delivery inspection (pressure test, specification test, material, quantity, packing).
• A 12-month quality warranty is provided, support third-party testing.
• Free solutions and drawings can be provided.
• A well-trained and disciplined packaging team.
• 24h online service, quick response before and after sales.
• Support online factory inspection.
• On-time delivery and free samples can be provided.

FAQ:

Q1: What materials are available for the Liwei Single Sphere Rubber Expansion Joint?

A1: The body is available in EPDM, NBR, Neoprene (CR), Natural Rubber and FKM for different media and temperature requirements.

Q2: Does this joint provide leak-free sealing and control rods?

A2: Yes. The molded single sphere body offers leak-free sealing, and optional control rods / tie rods / limit rods prevent pipe pull-out under high pressure.

Q3: Which flange standards are supported?

A3: Multi-standard flanges are supported, including DIN, ANSI 150 (Class 150), JIS 10K, BS and PN6-PN40, with DN15 to DN4000 sizes.

Q4: What certifications does the product have?

A4: The product is certified with ISO9001, CE, TUV, WRAS, CO, MTC, PL, IV, etc., and third-party testing is supported.

Q5: How is the product packaged and what is the MOQ?

A5: The minimum order quantity is 1 set. It is packaged with an inner plastic film and an outer wooden case; a steel frame is used when multiple pieces are packed together.