01
Single Sphere Rubber Expansion Joint - China Suppliers & Factory for ANSI, DIN, BS Compliant Flange Types
Description
The Single Sphere Rubber Expansion Joint is designed to absorb vibration, reduce noise, and compensate for thermal expansion or contraction in piping systems. Featuring a compact and highly flexible design, it is ideal for use in HVAC systems, water pipelines, industrial processing lines, and pump installations.
Manufactured from high-quality EPDM or NBR rubber and reinforced with multi-ply synthetic fabric and steel rings, the single sphere rubber expansion joint offers excellent resistance to pressure, temperature, and networks, and chemical processing facilities. It helps protect sensitive equipment such as pumps, valves, and meters by reducing stress caused by thermal and mechanical movement.
The flanges are typically made of carbon steel or stainless steel, conforming to international standards such as ANSI, DIN, or JIS. Available in sizes ranging from DN32 to DN1200, the single sphere rubber expansion joint is a trusted solution for ensuring flexible, long-lasting, and maintenance-friendly pipeline connections.
As one of China’s leading manufacturers of rubber joints and pipeline accessories, we provide durable, tested, and globally certified products to meet your project needs.
Manufactured from high-quality EPDM or NBR rubber and reinforced with multi-ply synthetic fabric and steel rings, the single sphere rubber expansion joint offers excellent resistance to pressure, temperature, and networks, and chemical processing facilities. It helps protect sensitive equipment such as pumps, valves, and meters by reducing stress caused by thermal and mechanical movement.
The flanges are typically made of carbon steel or stainless steel, conforming to international standards such as ANSI, DIN, or JIS. Available in sizes ranging from DN32 to DN1200, the single sphere rubber expansion joint is a trusted solution for ensuring flexible, long-lasting, and maintenance-friendly pipeline connections.
As one of China’s leading manufacturers of rubber joints and pipeline accessories, we provide durable, tested, and globally certified products to meet your project needs.
Standard of Implementation
| Category | Details |
| Type | Flange |
| Face to Face | API609, BS5155, DIN3202, ISO5752 |
| Flange | DIN, BS, UNI, ISO, ANSI, AS, JIS |
| Mounting Flange | ISO5211 |
| Working Pressure | PN16 (200PSI) |
| Application | HVAC, Water Supply & Sewage, Food & Beverage, Chemical/Petrochemical Processing, Power and Utilities, Paper and Pulp, Ship Building |
Standard Materials Of Main Parts
| NO | PART NAME | MATERIAL |
| 1 | Sphere | EPDM/NBR |
| 2 | Flange | CS Coated With Zinc |
Dimensions (mm)
| SIZE | L | Pn16 | Pn10 | ANSI150 | |||||||
| in | DN | D | D1 | n-d1 | D | D1 | n-d1 | D | D1 | n-d1 | |
| 1.25 | 32 | 95 | 140 | 100 | 4-18 | 140 | 100 | 4-18 | 117 | 89 | 4-16 |
| 1.5 | 40 | 95 | 150 | 110 | 4-18 | 150 | 110 | 4-18 | 127 | 98.5 | 4-16 |
| 2 | 50 | 105 | 165 | 125 | 4-18 | 165 | 125 | 4-18 | 152 | 120.5 | 4-19 |
| 2.5 | 65 | 115 | 185 | 145 | 4-18 | 185 | 145 | 4-18 | 178 | 139.5 | 4-19 |
| 3 | 80 | 135 | 200 | 160 | 8-18 | 200 | 160 | 8-18 | 191 | 152.5 | 4-19 |
| 4 | 100 | 150 | 220 | 180 | 8-18 | 220 | 180 | 8-18 | 229 | 190.5 | 8-19 |
| 5 | 125 | 165 | 250 | 210 | 8-18 | 250 | 210 | 8-18 | 254 | 216 | 8-22 |
| 6 | 150 | 180 | 285 | 240 | 8-23 | 285 | 240 | 8-23 | 279 | 241.5 | 8-22 |
| 8 | 200 | 210 | 340 | 295 | 12-23 | 340 | 295 | 8-23 | 343 | 298.5 | 8-22 |
| 10 | 250 | 230 | 405 | 355 | 12-17 | 395 | 350 | 12-23 | 406 | 362 | 12-25 |
| 12 | 300 | 255 | 460 | 410 | 12-17 | 445 | 400 | 12-23 | 483 | 432 | 12-25 |
| 14 | 350 | 255 | 520 | 470 | 16-27 | 505 | 460 | 16-23 | 533 | 476 | 12-29 |
| 16 | 400 | 255 | 580 | 525 | 16-30 | 565 | 515 | 16-27 | 597 | 539.5 | 16-29 |
| 18 | 450 | 255 | 640 | 585 | 20-30 | 615 | 565 | 20-27 | 635 | 578 | 16-35 |
| 20 | 500 | 255 | 715 | 650 | 20-33 | 670 | 620 | 20-27 | 699 | 635 | 20-32 |
| 24 | 600 | 260 | 840 | 770 | 20-36 | 780 | 725 | 20-30 | 813 | 749.5 | 20-35 |
Company Profile
Tianjin Guoji Valve Co., Ltd. is an export-oriented valve manufacturer with 15,332 square meter factory area, which has strong capability of R&D, Manufacture, Trading and Service. Now our company has passed the Lloyd's Register (LR) ISO9001: 2015 quality management system certification (ISO Approval number: ISO 9001 – 00033059) and CE/PED certification (EU Certificate Of Conformity). (Certificate No: 0343/PED/SHA/BJG00001668/A).
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.
Frequently Asked Questions
What are the primary functions of a single sphere rubber expansion joint?
It is primarily used to absorb vibrations, reduce noise, and compensate for thermal expansion or contraction in piping systems, protecting sensitive equipment like pumps and valves.
What materials are used for the rubber sphere?
The spheres are typically manufactured from high-quality EPDM or NBR rubber, reinforced with multi-ply synthetic fabric and steel rings for durability and pressure resistance.
Which industries commonly use these expansion joints?
They are widely used in HVAC systems, municipal water supply, sewage treatment plants, chemical processing facilities, and power utilities.
What flange standards do your expansion joints follow?
Our flanges conform to major international standards, including ANSI, DIN, JIS, BS, UNI, ISO, and AS.
What range of sizes and pressures do you offer?
We offer sizes ranging from DN32 up to DN1200, with standard working pressures such as PN10, PN16, and ANSI 150.
What certifications does Tianjin Guoji Valve Co., Ltd. hold?
Our company is certified with ISO 9001:2015 by Lloyd's Register (LR) and holds CE/PED certification for European market compliance.