Double sphere rubber expansion joint
Double sphere rubber expansion joint - 图片 2
Double sphere rubber expansion joint - 图片 3

Double sphere rubber expansion joint

DEVEL Double Sphere Rubber Expansion Joints are enginee…

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描述

DEVEL Double Sphere Rubber Expansion Joints are engineered with a dual-convolution design to provide significantly greater movement and displacement compensation than standard single sphere joints. Utilizing premium elastomers and a specialized manual hand-wrapping process, these flexible connectors deliver exceptional multi-axis flexibility, superior noise dampening, and high pressure ratings. As a trusted manufacturer-direct supplier, Henan Devel provides comprehensive sizing ranges from DN32 up to DN3000 to meet demanding industrial piping requirements worldwide.

Key Features & Advantages

  • Extended Movement Compensation: The double-sphere design provides expanded axial compression, extension, and lateral deflection capabilities, making it ideal for high-displacement pipeline positions.
  • Advanced Manual Hand-Wrapping: Built using a precision manual wrapping process rather than traditional mold pressing, ensuring uniform wall thickness and optimized synthetic cord ply integration for heavy-duty applications.
  • High Vibration & Noise Isolation: Effectively isolates mechanical vibration and dampens fluid-borne noise, protecting sensitive pumps, valves, and downstream pipeline systems.
  • Engineered Vacuum Resistance: Constructed with high-tensile reinforcement layers to withstand operational vacuum conditions without structural deformation or collapse.

Technical Parameters & Materials

Technical Property Specification
Product Name Double Sphere Rubber Expansion Joint
Bore Size Range DN32mm – DN3000mm (1.25″ to 120″)
Working Pressure PN10 / PN16 | Class 150
Standard Compliance GB (Standard), ASME/ANSI B16.5, DIN, BS, EN1092, JIS
Elastomer Material EPDM, NBR (Nitrile), Natural Rubber, Neoprene, SBR
Flange Drilling Carbon Steel Q235 (Galvanized/Coated), Stainless Steel 304 / 316 / 316L
Applicable Media Water, Sea Water, Sewage, Mild Acids, Alkalis, Oils, Compressed Air
Operating Temperature -15°C to +115°C (depending on lining selection)
Safety Factor ≥ 3:1 (Burst Pressure vs. Working Pressure)

Dimensions & Movement Capabilities (Double Sphere)

Nominal Diameter Install Length Axial Movement (mm) Radial Movement Angular Movement
mm (DN) inch Double Sphere (mm) Extension Compression Double Sphere (mm) Double Sphere (°)
32 1.25 165 ±30 45 45
40 1.5 165 ±40 45 45
50 2 165 ±40 45 45
65 1.5 175 ±40 45 45
80 3 175 ±40 45 45
100 4 225 ±50 55 30
125 5 225 ±50 55 30
150 6 225 ±50 55 30
200 8 325 ±50 55 15
250 10 325 ±50 55 15
300 12 325 ±60 65 15
350 14 325 ±60 65 15
400 16 400 ±60 65 15
450 18 400 ±70 65 10
500 20 400 ±70 65 10
600 24 400 ±70 65 10
700 28 400 ±75 70 10
800 32 450 ±75 70 8
900 36 450 ±75 70 8
1000 40 450 ±75 70 8
1200 48 500 ±80 70 6
1400 56 500 ±80 75 6
1600 64 500 ±80 75 6
1800 72 500 ±80 75 6
2000 80 550 ±85 75 4
2200 88 550 ±85 70 4
2400 96 550 ±85 70 4
2600 104 550 ±85 70 4
2800 112 550 ±85 70 4
3000 120 550 ±85 70 4

Engineering Note: Dimensional specifications listed above conform to the Chinese National Standard (GB). As a fully integrated fluid equipment manufacturer, Henan Devel provides flexible production and comprehensive engineering customization capabilities; parameters, flange drillings, and face-to-face lengths can be fully modified and manufactured to meet ANSI/ASME, DIN, BS, or JIS standards according to your specific engineering drawings.

Typical Applications

DEVEL double sphere flexible joints are widely utilized in critical infrastructure requiring high displacement tolerance, including **Water Treatment Infrastructure**, **Heavy Industrial Pumping Stations**, **District HVAC Piping Loops**, **Marine & Shipboard Piping Layouts**, and chemical processing transport networks.

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