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Weighing Bellows

Designed to minimize resistance transfer on weighing equipment.

Made from our super strong but flexible urethane-based Seeflex material.

Product Description

Our Weighing Bellows are made from our clear ether-based thermoplastic polyurethane alloy Seeflex 040E, making them very strong and flexible, so they won't fracture as a result of constant flexing.

The shape of the Weighing Bellows is ideal for preventing vibration transmission between equipment, minimising any transfer that can affect weighing or scales downstream. 

Snap-fit connector and spigot design ensure fast, accurate installation every time the connector is removed and replaced.

Application(s):

  • Designed for applications where precise weighing is required, e.g. loss-in-weight feeders & dosing equipment.

Key Features

Suitable for sensitive equipment

Prevents force transfer on sensitive weighing equipment

Durability

Superior wear resistance - won't tear or rip

Accurate Weighing

Shape prevents residual product build-up for accurate weighing

Compliance

3A, USDA, EC and ATEX compliant

Conditions and Compliance

  • Vibration
  • Dust-tight
  • Food safety
  • ATEX

Documents for Download

Specifications Sheet
MSDS - Seeflex 040E (GHS)
MSDS - Seeflex 040E (EU)
Installation Guideline

Specifications

Physical Properties
  • Material/Fibre
    Seeflex 040E - Ether-based thermoplastic polyurethane
  • Colour
    Transparent
  • Construction/Finish
    Gloss/Gloss
  • Wall Thickness (+/-10%)
    0.9mm/1/32 inch
  • Breathable
    No
  • Hardness (Shore A)
    90
  • Dust tight?
    Yes
  • Available Connector Materials
    Seeflex 040E
Operating Conditions
  • Max Operating Temp
    86°C /176°F
  • Operating Temp Range
    - 25 to 80°C / - 13 to 176°F
  • Surge Temp
    100ºC / 212ºF
  • Low Temp/Flexibility
    Good
  • Surface Resistivity (0hms)*
    1010 (Tested to ASTMD-257)
  • Air Permeability
    No
  • Vibration
    Yes
  • Oscillation
    No
  • Compression
    No
Certification and Compliance
  • FDA and USDA
  • FDA 21 CFR 177.1680 & 177.2600 and USDA
  • 3A Certified
    Manufactured from 3A 20-27 certified Seeflex Material and the BFM® cuff and spigot system is a 3A certified 63-04 sanitary fitting.
  • EU Approved
    (EC)1935/2004, 2023–2006 & 10/2011
  • Atex-certified
    IBExU tested. Approved for all dust explosion hazardous areas. Some restrictions apply.
Dimensions
  • Available Diameters
    Ø100mm (4")
    Ø150mm (6")
    Ø200mm (8")
  • Applicable Connector Lengths
    80mm (3")
Options
  • Available with SS Rings? (min. length for all is 150mm)
    No
  • Available with Plastic Rings? (min. length for all is 150mm)
    No
  • Available as Tool Release?
    No
  • Available as Tapered?
    No
  • Available as a one ended Connector?
    No
  • Quick Access Port Option?
    No

Seeflex 040E Connector Gallery

Sifters potato flour
Sifters
BFM® connectors installed on a metal detector
Metal Detectors
BFM® connectors and spigots being used outdoors
Outdoor Use
BFM® connectors and spigots being used to transport product from a silo
Silos
Seeflex 040E with rings infant formula production 726 x 1,082
Infant Formula
WHOLE COFFEE BEANS PASSING THROUGH A BFM® SEEFLEX 040E CONNECTOR.
Coffee Beans

Frequently Asked Questions

What is the most appropriate connector media for abrasive products?

Seeflex 040E is very strong and has been used with sugar, crystallized lactose, aggregates etc. Installing with an internal flow correction system is an additional way to further improve the system and avoid undue abrasion.

Is Seeflex 040E suitable for outdoor use - ie. is it UV and water-resistant?

Seeflex 040E can be used outdoors. It has been proven for use in both the sun and water. Extended exposure to UV will cause the Seeflex 040E to turn a little yellow, but the media will not lose any strength or integrity.

Can Seeflex 040E be used with liquids?

Yes, although the BFM® fitting is designed to provide a 100% seal on powder applications, we do not make this statement with liquid. The Seeflex 040E works very well and is used in a number of applications, although there may also be the occasional very small leak (drips). The composition of the liquid would also need to be checked to ensure compatibility with Seeflex.

Will Seeflex 040E work with an ethanol application?

If the contact with the ethanol is permanent the Seeflex 040E is not suitable. If it is sporadic and low temperature then you should have no problem. You may need to run a few tests on the media to check the suitability, as it will depend on time and temperature of contact with the solvent and the application. Please contact one of our representatives to discuss this further.

Can Seeflex 040E be used in an application with animal fat?

Yes, although the fat may stain Seeflex 040E, and cause it to go a little yellow, the strength of the media will not be affected greatly.

 
Which BFM® connector would be the best solution to use to process a laundry soap product?

This will depend somewhat on what is in the laundry soap. In general the Seeflex 040E will work well. There is often Sodium Carbonate or Sodium salt which may start to break down the Seelfex over an extended period. Unilever in New Zealand run the BFM® fitting on soap product without issue.