TRELLFLEX ROOF DRAIN

Applications

Removal of rain water from the roof of an external floating roof tank.

Advantages

Suitable for hydrocarbons containing up to 100% aromatics. Proposed with a negative buoyancy. Field proven tested and approved for years. Easy to handle and to set up. Long service life (up to 10 years). Low maintenance.

Overview

Internal helix

stainless steel 304L (stainless steel 316L on request).

Inner tube

polypropylene film, null,

Reinforcement

polypropylene/polyester layers,

Cover

polyamide, corrugated, white,

External helix

stainless steel 304L (stainless steel 316L on request).

Temperature range

-30 to +100

Electrical properties

electrical conductivity ensured by the external helix in contact with fittings. R≤100Ω/assembly.

Additional information

Fitted lengths are delivered on request with pressure test certificate.
Other DN, imperial size and taylor-made hose design on request.

Couplings Fittings

Swaged fixed or swivel flange ISO PN10/16, PN20 (ASA150). Other swaged couplings on request.

Technical Specifications

ID (mm)	Wall thickness (mm)	OD (mm)	Working Pressure (bar)	Bursting pressure (bar)	Max. vacuum (bar)	Bending radius (mm)	Weight (kg/m)	Length (m)	Article number	Stock or min. order (m)