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Tied Rubber Bellows - Type JP02Expansion joint JP01


Tied E.P.D.M. rubber bellows with nylon reinforced body and steel reinforced collar. Fitted with zinc plated carbon steel swivel flanges. Drilled to BS. 4504 NP16.


Stourflex untied rubber bellows are designed to accommodate misalignment and both axial and lateral movement. They are also used to reduce noise and vibration from pumps and reciprocating machinery. They are suitable for L.T.H.W. systems up to 90°C with a maximum working pressure 10 bar and C.H.W. systems at 6°C/12°C with maximum working pressure of 16 bar.

Stourflex rubber bellows should not be used at both their maximum working temperature and pressure respectively. Maximum test pressure = 1.5 x working pressure or 1.5 x flange rating, whichever the lower.


Stourflex are now able to offer a tailor-made flexible lagging jacket to help reduce heat losses on LTHW systems and heat gains & condensation on CHW systems. Please ask for more information.


Part Number
N.B. (mm)
Installed Length (mm)
Tie Bars
 JP02-25-16 25 130 2 13
 JP02-32-16 32 130 2 13
 JP02-40-16 40 130 2 13
 JP02-50-16 50 130 2 13
 JP02-65-16 65 130 2 13
 JP02-80-16 80 130 2 13
JP02-100-16 100 130 2 13
JP02-125-16 125 130 2 13
JP02-150-16 150 130 2 13
JP02-200-16 200 130 2 13
JP02-250-16 250 130 2 13
JP02-300-16 300 130 4 13


  • Supplied length may vary. Tolerance +/- 5%
  • For sizes above 300mm N.B. please refer to the JP04 untied rubber bellows.
  • Where vacuum conditions or pressures and temperatures above those stated exist, please check with us the suitability of and effects on the service life of Stourflex products.
  • Alternative flange drillings and materials are available on request. Stourflex products should be installed in accordance with our fitting instructions.
  • Stourflex rubber bellows should be periodically inspected and replaced if any deterioration is evident.


Download: Data Sheet and Installation Guide

Tel: 01384 393329

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