Deformed and openable circular bellows

The deformed and openable circular bellows are used in all cases where strong mechanical resistance is required. They are characterised by excellent resistance to mechanical stress as well as to coolants and oils.

The deformed and openable circular bellows are also available in conical shape according to the needs. They do not involve any cost of equipment and have an excellent quality / price ratio. On request, the deformed and openable circular bellows are available with guide bushings and reinforcement rings.

Openable

Deformed and openable bellows

Deformed and openable circular bellows protectors

On request, the deformed 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

Deformed and openable circular bellows protectors

Bellows with the type A fastening system have a collar and a flange

Data:

Ø e. soff. = Circular bellows outer diameter
Ø i. soff. = Bellows internal diameter
Ø i.c. = Collar inside diameter 1
H = Upper collar height
Ø i.f. = Internal flange diameter
Ø int. fori = Flange hole centre-to-centre diameter
Ø e. f. = Flange outer diameter
P.A. = Open length
P.C. = Closed length
Corsa = P.A. – P.C.
X = Bellows fold height
AP = Opening of 1 fold

Type B fixing schemes

Deformed and openable circular bellows protectors

Bellows with type B fastening system have two collars

Data:

Ø e. soff. = Circular bellows outer diameter
Ø i. soff. = Bellows internal diameter
Ø i.c. = Collar inside diameter 1
H = Upper collar height
P.A. = Open length
P.C. = Closed length
Corsa = P.A. – P.C.
X = Bellows fold height
AP = Opening of 1 fold

Type C fixing schemes

Deformed and openable circular bellows protectors

Bellows with the type C fastening system have two flanges

Data:

Ø e. soff. = Circular bellows outer diameter
Ø i. soff. = Bellows internal diameter
Ø i.c. = Collar inside diameter 1
Ø i.f. = Internal flange diameter
Ø int. fori = Flange hole centre-to-centre diameter
Ø e. f. = Flange outer diameter
P.A. = Open length
P.C. = Closed length
Corsa = P.A. – P.C.
X = Bellows fold height
AP = Opening of 1 fold

Standard materials

Materials available

  • Polyester coated with Neoprene * and Hypalon * code PEI TEMAT002
  • Polyester coated with PVC code PEI TEMAT081
  • Polyester coated with PVC = code PEI TEMAT 019 – TEMAT018 – TEMAT017
  • Fibreglass coated with Silicone and Neoprene * code PEI TEMAT094

* Neoprene and Hypalon are Dupont registered trademarks

Further materials are available on request: consult our technical department.

Formulae

Closed Pack Calculation Formula Deformed Protective Bellows

Deformed and openable circular bellows protectors

Circular deformed protective bellows: Formula for the calculation of the closed parcel

Download the list of materials

Documentation