Double Hinged Expansion Joints
Product Code: BDHF/N
EMFLEX double hinged expansion joints consist of two bellows connected by a piece of pipe which permits a pipeline to move in a lateral direction in one plane only, with each bellows moving through an angle of up to +/-5 degrees. These units are pressure restrained, being fitted with hinges, so they impose only small forces within the system and light anchors are sufficient. The main applications are where large movements have to be accommodated in the piping system or where it is impossible to fit heavy anchors.
Product Type
Info Table
Additional Information
For use on steel pipelines and is suitable for steam and hot water for heating. This unit has two stainless steel bellows and inner sleeves with carbon steel intermediate pipe, flanges and hinges.
For use on copper pipelines and is suitable for condensate and domestic hot water. This unit has stainless steel internals comprising stainless steel bellows, inner sleeves, intermediate pipe and van-stone ends with carbon steel backing flanges and hinges.
- Nominal Size
- mm
- 50
- 65
- 80
- 100
- 125
- 150
- 200
- Installed Length for +/- 25mm mvt.
- mm
- 510
- 540
- 590
- 670
- 670
- 720
- 740
- Force Required for Maximum Deflection
- Newtons
- 80
- 100
- 150
- 170
- 290
- 700
- 1400
- Additional Length per +/- 25mm mvt. increase
- mm
- 285
- 285
- 285
- 285
- 285
- 285
- 285
Other lengths and sizes are available. External protective sleeves are available.
Working Pressure: 16 bar (1600 kPa).
Test Pressure: 1.5 x Working Pressure.
Press./Temp. ratings for carbon steel PN16 Flanges.
Design Temperature x Working Pressure
{(ºC)} {120} {150} {200} {250} {300}
{Bar} {16} {14} {12} {11} {9}
Material Specifications
Bellows and internal sleeves are stainless steel.
For steel service the intermediate pipe, flanges and hinges are carbon steel.
For copper service the intermediate pipe and van-stone ends are stainless steel, backing flanges and hinges are carbon steel.
Design Consideration
For details of layouts, pipe anchors and alignment guides see our design book.
+ -
Emflex
DOUBLE HINGED EXP BELLOWS
N.Minikin & Sons LimitedUnit 2B Brickyard Road, Roecliffe, York, YO51 9NS
Email: enquiries@minikins.co.uk Web: www.minikins.co.uk
Tel: 01423 326 789
01423 326 789
N.MINIKINS & SONS LIMITED
MINIKINS.CO.UK
Double Hinged Expansion JointsProduct Code: BDHF/N
EMFLEX double hinged expansion joints consist of two bellows connected by a piece of pipe which permits a pipeline to move in a lateral direction in one plane only, with each bellows moving through an angle of up to +/-5 degrees. These units are pressure restrained, being fitted with hinges, so they impose only small forces within the system and light anchors are sufficient. The main applications are where large movements have to be accommodated in the piping system or where it is impossible to fit heavy anchors.
For use on steel pipelines and is suitable for steam and hot water for heating. This unit has two stainless steel bellows and inner sleeves with carbon steel intermediate pipe, flanges and hinges.
For use on copper pipelines and is suitable for condensate and domestic hot water. This unit has stainless steel internals comprising stainless steel bellows, inner sleeves, intermediate pipe and van-stone ends with carbon steel backing flanges and hinges.
- Nominal Size
- mm
- 50
- 65
- 80
- 100
- 125
- 150
- 200
- Installed Length for +/- 25mm mvt.
- mm
- 510
- 540
- 590
- 670
- 670
- 720
- 740
- Force Required for Maximum Deflection
- Newtons
- 80
- 100
- 150
- 170
- 290
- 700
- 1400
- Additional Length per +/- 25mm mvt. increase
- mm
- 285
- 285
- 285
- 285
- 285
- 285
- 285
Other lengths and sizes are available. External protective sleeves are available.
Working Pressure: 16 bar (1600 kPa).
Test Pressure: 1.5 x Working Pressure.
Press./Temp. ratings for carbon steel PN16 Flanges.
Design Temperature x Working Pressure
{(ºC)} {120} {150} {200} {250} {300}
{Bar} {16} {14} {12} {11} {9}
Material Specifications
Bellows and internal sleeves are stainless steel.
For steel service the intermediate pipe, flanges and hinges are carbon steel.
For copper service the intermediate pipe and van-stone ends are stainless steel, backing flanges and hinges are carbon steel.
Design Consideration
For details of layouts, pipe anchors and alignment guides see our design book.
01423 326 789
N.MINIKINS & SONS LIMITED
MINIKINS.CO.UK