Very flexible Silicone hose reinforced with Polyester braid

ROMY-FLEX EXT D is a Silicone supply hose with Polyester braid reinforcement, multi-use and designed for the biotechnological and pharma industry.

The ROMY-FLEX EXT D has excellent flexibility and is lightweight. The EXT D exists of braided, high temperature resistant plies that are enveloped by platinum-cured, translucent silicone on the outside. Multi-use and designed for the biotechnological, medical and pharmaceutical industry where high purity is a must.

Ideal hose for applications with gases or water

The EXT D is ideal for applications with gases (CO2, O2, N2 and air) or water (WFI and demi). The hose can be cutted to size and fitted with the desired crimp fittings in our hose workshop, and can always be delivered from stock.  

Features & benefits

  • Very flexible and lightweight
  • Multi-use
  • Sterilizable with steam up to 135 °C, by radiation or by Autoclave
  • Ideal for applications with gases or water
  • Resistant to high temperatures


Tube and cover:  Platinum cured Silicone, colorless and translucent
Reinforcement:  Braided high temperature resistant plies

Technical information

Sizes 1/4" to 3/4" (more information, see table)
Max. length 25 meter
Working Pressure up to 10 bar (depending on size, see table)
Temp. range -60 °C to 180 °C
Connections Multiple kinds of connections available
Bending Radius Depends on size, see table
Material Platinum-Cured Silicone; Polyester Braid
Shelf life 10 years (if stored in original package in a dry, cool and dark environment, more info in certificate)
Certificates FDA (21 CFR 177.2600), USP Class VI, {88}, TSE/BSE, CE1935/2004

Sizes and availability

1/4" 6.35mm ID 12.61mm OD In stock
3/8" 9.52mm ID 16.32mm OD In stock
1/2" 12.70 mm ID 20.10mm OD In stock
5/8" 15.87 mm ID 24.37mm OD In stock
3/4" 19.05mm ID 27.90mm OD In stock
1" 25.40mm ID 34.50mm OD Upon request
1 1/4" 31.75mm ID 40.80mm OD Upon request

 Pressure and Bending Radius

Size Working Pressure (at 20°C) Bursting Pressure (bij 20°C) Bending Radius (in mm)
1/4" 10 bar 30 bar 50
3/8" 9 bar 27 bar 50
1/2" 7 bar 21 bar 80
5/8" 7 bar 21 bar 90
3/4" 6 bar 18 bar 110
1" 4 bar 12 bar 160
1 1/4" 3 bar 9 bar 200