njninghaojixie@163.com    +86-15806526381
Home / Products / Rubber Expansion Joint / Spherical Type Flexible EDPM Rubber Pipe Expansion Joint

Spherical Type Flexible EDPM Rubber Pipe Expansion Joint

NINGHAO Machinery is the leading spherical type flexible EDPM rubber pipe expansion joint manufacturer and supplier in China. As a top producer, we provide comprehensive solutions for pipeline systems with various specifications. We take pride in delivering world-class performance, durability, and reliability through our expansion joints. Experience superior pressure absorption capacity - request your customized quotation today!
Availability:
Quantity:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button
  • NHFLEX-A

MATERIAL SPECIFICATION

MATERIAL SPECIFICATION
Part No. Part Standard Specification
1 Flange Galvanized Carbon Steel
2 Reinforcing Ring Carbon Steel
3 Rubber (lnner) EPDM
4 Rubber (Outer) EPDM
5 Reinforcing Fabric Nylon Fabric


NINGHAO Machinery produces the Spherical Type Flexible EDPM Rubber Pipe Expansion Joint.
It is built for flexible pipe movement.


The flange is made of galvanized carbon steel.
The reinforcing ring uses carbon steel.


The inner rubber is EPDM.
The outer rubber is EPDM.


The reinforcing fabric is nylon fabric.


The product meets standard specifications.
It performs well in pipe systems.


xq2-1

Note: For special material request other than standard specification, please indicate clearly on the inquiry or order list.


Technical Features:

The Spherical Type Flexible EDPM Rubber Pipe Expansion Joint from NINGHAO Machinery is built for reliable pipe system performance. It meets industry standards and supports efficient operation. The joint has precise connection ends, standard working pressure, a stable temperature range, and high vacuum capacity. Below are its key technical features.


  1. Connection Ends:
    The flange drilling meets BS EN 1092-2:1997.
    It ensures proper alignment and fit.
    It supports a secure connection.


  2. Working Pressure:
    The joint operates at PN10/16.
    It handles medium pressure levels.
    It fits standard pipe systems.


  3. Temperature Range:
    The joint works between 0°C and 80°C.
    It functions within these limits.
    It is stable under normal conditions.


  4. Vacuum Capacity:
    The joint supports a vacuum of 700MM/HG.
    It maintains integrity under low pressure.
    It suits applications needing vacuum.


Dimensions

DN (Inch) DN (mm) L (mm) D (mm) Ø (mm) N-ØH Elongation (mm) Compression (mm) Transverse Movement (mm) Angular Deflection (°)
1 1/4" 32 95 140 100 4×18 6 10 10 25
1 1/2" 40 95 150 110 4×18 6 10 10 25
2" 50 105 165 125 4×18 6 10 10 25
2 1/2" 65 115 185 145 8×18 8 15 12 25
3" 80 135 200 160 8×18 8 15 12 25
4" 100 150 220 180 8×18 12 20 16 15
5" 125 165 250 210 8×18 12 20 16 15
6" 150 180 285 240 8×22 12 20 16 15
8" 200 210 340 295 12×22 12 20 16 15
10" 250 230 405 355 12×26 14 30 25 8
12" 300 230 460 410 12×26 14 30 25 8
14" 350 265 520 470 12×26 14 30 25 8
16" 400 265 580 525 16×30 14 30 25 8
18" 450 265 640 585 20×30 14 30 25 8
20" 500 265 715 650 20×33 14 30 25 8
24" 600 265 840 770 20×36 14 30 25 8


The Spherical Type Flexible EDPM Rubber Pipe Expansion Joint is built by NINGHAO Machinery.
It suits flexible pipe systems.


The joint comes in many sizes.
Sizes range from 1 1/4" to 24".
Metric sizes range from 32 mm to 600 mm.


The joint length changes with size.
It is 95 mm to 265 mm.
The diameter ranges from 140 mm to 840 mm.

The reinforcement is noted as N-ØH.
Values range from 4×18 to 20×36.


Elongation measures from 6 mm to 14 mm.
Compression measures from 10 mm to 30 mm.


Transverse movement is 10 mm to 25 mm.
Angular deflection is 8° to 25°.


These parameters support reliable operation in pipe systems.
The design meets industry standards.


xq2-3


Pressure–Temperature Overview:

The chart shows safe pressure limits at different temperatures. It defines the working range for the joint. The gray envelope marks the allowable pressure at each temperature. The data helps engineers set design and safety parameters.


  1. Temperature and Pressure Scale:

    • The temperature scale runs from -40°C to 120°C.

    • The pressure scale runs from near 0 MPa to 1.5–2.0 MPa.

    • These scales set the operational limits.


  2. Operating Range (Gray Area):

    • The gray area marks the safe pressure zone.

    • It shows the allowable pressure at each temperature.

    • Operating outside this area may raise safety risks.


  3. Phase Transition and Boundaries:

    • The gray area may reflect the saturation curve.

    • It marks the phase change boundary for the media.

    • Exceeding these limits can lead to component failure.


  4. Engineering Applications and Safety Design:

    • Engineers use this data for design and risk evaluation.

    • It helps set proper pressure and temperature conditions.

    • The information guides material selection and safety measures.

Previous: 
Next: 
Ningjin NINGHAO Machinery Co.,Ltd. Founded on November 19,2010.It is located in no.2 taishan road,economic and technological development zone,ningjin county,dezhou city, shandong province.It covers an area of 120 mu,with more than 80 employees,among them,21 technicians.

QUICK LINK

PRODUCTS CATEGORY

Leave a Message
CONTACT US

INFORMATION

   No.2 Taishan Road, Development Zone, Ningjin County, Shandong Province

   Phone: +86-15806526381

                    +86-18561954252
   Skype: rubberjoint1
   Email: njninghaojixie@163.com

                  njninghaomachinery@163.com

Copyright © 2022 Ningjin NINGHAO Machinery Co.,Ltd. All Rights Reserved.| Sitemap | Support By Leadong