Circular, watertight, heat-sealed bellows
Watertight circular bellows
The thermo-welded watertight circular bellows are used when watertight protection is required over the parts to be protected (for example screws, stems, etc.) against contamination of coolant liquids. They have good resistance to chemicals and are heat compatible with the materials used.
The thermo-welded watertight circular bellows can be supplied in the most diverse shape structures after setting up equipment of modest value (if not already existing in our warehouse).
Data
Type A fixing schemes
Bellows with the type A fastening system have with collar and a flange
Bellows data:
Ø e. soff. = Circular bellows outer diameter
Ø i.c. = Internal collar diameter
Ø i. soff. = Bellows internal diameter
Ø i.f. = Internal flange diameter
Ø int. holes = Flange hole centre-to-centre diameter
Ø e. f = Flange outer diameter
P.A. = Open parcel
P.C. = Closed parcel
Corsa = P.A. – P.C.
AP = Open step
X = Bellows fold height
Type B fixing schemes
Bellows with type B fastening system have two collars
Bellows data:
Ø e. soff. = Circular bellows outer diameter
Ø i.c. = Internal collar diameter
Ø i. soff. = Bellows internal diameter
P.C. = Open parcel
Corsa = P.A. – P.C.
AP = Open step
X = Bellows fold height
Type C fixing schemes
Bellows with the type C fastening system have two flanges
Bellows data:
Ø e. soff. = Circular bellows outer diameter
Ø i. soff. = Bellows internal diameter
Ø i.f. = Internal flange diameter
Ø int. holes = Flange hole centre-to-centre diameter
Ø e. f = Flange outer diameter
P.A. = Open parcel
P.C. = Closed parcel
Corsa = P.A. – P.C.
AP = Open step
X = Bellows fold height
Standard materials
Materials available
- Code PEI: TEMAT 018 Polyester coated in PVC thickness 0.7
- Code PEI: TEMAT 019 Polyester coated in PVC thickness 0.5
- Code PEI: TEMAT 153 POLYURETHANE leaf thickness 0.5
- Code PEI: TEMAT 153/S POLYURETHANE leaf thickness 0.7
- Code PEI: TEMAT 156 POLYURETHANE leaf thickness 0.5
Further materials are available on request: consult our technical department.
Formulae
Formule
Formulae for calculating closed parcel
