Heat-formed and openable round bellows protectors
Heat-formed and openable round bellows
These are used when high mechanical strength and heat resistance are required.
They are characterised by excellent resistance to mechanical stress as well as to coolants and oils. They are also available in cone-shaped according to the needs.
They do not involve any cost of equipment and have an excellent quality / price ratio.
On request, the heat-formed and openable round bellows are available with guide bushings and reinforcement rings.
Openable
Deformed and openable bellows
On request, the heat-formed bellows are available with longitudinal opening, suitable for cases where it is necessary to mount the bellows without having to disassemble the organ to be protected.
Data
Type A fixing schemes
Bellows with type A fastening system have a collar and a flange
Bellows data:
Ø ext. (OD) = Circular bellow outer diameter
Ø int. c. = Internal collar diameter
Ø int. (ID) = Internal bellow diameter
Ø int.f. = Internal flange diameter
Ø int. hole = Flange hole centre-to-centre diameter
Ø ext. f = Flange outer diameter
P.A. = Open length
P.C. = Closed length
Stroke = P.A. – P.C.
AP = Opening of 1 fold
X = Fold height
Type B fixing schemes
Bellows with type B fastening system have two collars
Bellows data:
Ø ext. (OD) = Circular bellow outer diameter
Ø int. c. = Internal collar diameter
Ø int. (ID) = Bellow internal diameter
P.A. = Open length
P.C. = Closed length
Stroke = P.A. – P.C.
AP = Opening of 1 fold
X = Fold height
Type C fixing schemes
Bellows with the type C fastening system have two flanges
Bellows data:
Ø Ext. (OD) = Circular bellow outer diameter
Ø Int. (ID) = Bellow internal diameter
Ø Int. f. = Internal flange diameter
Ø int. hole = Internal flange diameter
Ø Ext. f = External flange diameter
P.A. = Open length
P.C. = Closed length
Stroke = P.A. – P.C.
AP = Opening of 1 fold
X = Fold height
Standard materials
Materials available
- Polyester coated with Neoprene * = code PEI TEMAT202
- Polyester coated with PVC (WHITE) = code PEI TEMAT081
- Polyester coated with PVC = code PEI TEMAT019 – TEMAT018
- Fibreglass coated with Silicone and Neoprene * = code PEI TEMAT094
* Neoprene is a Dupont registered trademark.
Further materials are available on request: consult our technical department.
Formula
Formula for calculating the CLOSED LENGTH
Circular heat-formed protective bellows: Formula for the calculation of the closed length
Documentation
Documentation
