POLFIN type L

Base tube – material

any

Fins – material

aluminium, copper

Maximum length

L = 15 500 mm

Quality certificates:
polfin polfin
Maximum operating temperature

120°C

Fins

made by wrapping base tube with a fin strip
Dw = 12,7–51 mm, h = 6–16 mm, n = 6–11 fins/inch

Manufactured

according to customer requirements and our internal standard: WTWiO-2010/WRAPPED/1

polfin
 

POLFIN type LL

Base tube – material

any

Fins – material

aluminium, copper

Maximum length

L = 15 500 mm

Quality certificates:
polfin polfin
Maximum operating temperature

150°C

Fins

made by wrapping base tube with a fin strip, as in the case of type L, but in a way that guarantees better corrosion resistance
Dw = 12,7–51 mm, h = 6–16 mm, n = 6–11 fins/inch

Manufactured

according to customer requirements and our internal standard: WTWiO-2010/WRAPPED/1

polfin
 

POLFIN type KL (knurled)

Base tube – material

any

Fins – material

aluminium, copper

Maximum length

L = 15 500 mm

Quality certificates:
polfin polfin
Maximum operating temperature

250°C

Fins

made by wrapping base tube with a fin strip, but the contact surface is additionally knurled, which ensures better contact. For this reason, this type of fin construction ensures better heat transfer characteristic than in the case of type L and LL
Dw = 12,7–51 mm, h = 6–16 mm, n = 6–11 fins/inch

Manufactured

according to customer requirements and our internal standard: WTWiO-2010/WRAPPED/1

polfin
 

POLFIN type G (embedded)

Base tube – material:

any

Fins – material

aluminium, copper

Maximum length

L = 15 500 mm

Quality certificates:
polfin polfin
Maximum operating temperature

450°C

Fins

made by wrapping fin strip over a groove in the base tube surface and then securely tightened. This technique allows the tubes to be used at high temperatures
Dw = 12,7–51 mm, h = 6–16 mm, n = 6–11 fins/inch

anufactured

according to customer requirements and our internal standard: WTWiO-2010/WRAPPED/1

polfin