Seeflex 040E is one of the available materials for BFM® fitting connectors. Not only is it transparent, but it is also exceptionally durable making it the primary choice for most industrial applications. BFM® fittings provide faster, cleaner, and safer connections in process lines where vibration, expansion, contraction, or portability issues prevent permanent solid-pipe connections.
  • Seeflex 040E is a clear ether-based thermoplastic polyurethane alloy.
  • Seeflex 040E has no shape memory and will not fracture as a result of repetitive movement.
  • Used on all types of stationary, vibratory & gyratory sifters, screeners, feeders, bin discharges, hoppers, conveyors, packing equipment or any product handling equipment.
  • Superior chemical resistance for CIP and washing.
  • Excellent abrasion resistance.
  • Smooth welded seam.
  • Dust control sleeves and transitions. Once in place, these connectors eliminate fugitive dust making them the first choice for dust-free factories.
  • Also known as industrial flexible sleeves, connectors, bellows, boots, socks, and transitions.
  • Replaces old gum rubber tubing/hose and clamp sleeves.
  • Snap-in connection installs in seconds.
  • Provides sanitary connections between process equipment.
  • Certified for use in USDA and 3-A powder applications
  • BFM® fitting products are all Kosher and Halal certified.
For more information, download the spec sheet or view the FAQ. Complies with: FDA FOOD ADDITIVE REGULATION 21 CFR, SECTIONS 177.2600 AND 177.1680, USDA, and  3A (20-).
Most popular sizes now in Estore
BFM Seeflex 040E Connector
Application summary 020E
Product Options 
  • RINGS: Seeflex 040E is available with stainless steel or plastic support rings to help keep the walls of the connector open. Ideal for vacuum applications or longer lengths.
  • TAPERED: Seeflex 040E is available as a tapered version where different entry and exit diameters are required. Frequently used as a simple hopper solution.
  • TOOL RELEASE: For added security, this option has a significantly firmer snap-band that makes it virtually impossible to remove by hand and requires a specially shaped tool. Optional safety feature.
  • QUICK ACCESS PORT: A screw-in plug in the wall of the connector that allows for easy access to product flow. Ideal for testing, sampling, or adding small-volume ingredients.
  • WASH SLEEVE: Same 040E connector but with a clearly marked "Wash Sleeve" stamp on the front to help differentiate which connector should be used for your CIP process.
Physical Properties
Hardness (Shore A): 90
Wall Thickness (mm) 0.9
Tensile Strength (MPa) 40
Temp Range -25 to 110°C
Surge Temp 120°C
Low Temp, Flexibility Good
Surface Finish Gloss/Gloss
Ultimate Elongation (%) 593
Tear Strength - Die C (N) 67
Material Resistance (Ohms) 1010
100% Modulus (MPa) 8
300% Modulas (MPa) 15.6
Permeability 0

Most common questions

For more information view the FAQ

BFM fitting Seeflex 040E Connector Part Numbers and Dimensions

BFM Part Number BFM Connector Dimensions  BFM Connector Description
20050  100 mm dia x 100 mm L 4 in x 4 in BFM Seeflex Connector
20051  100 mm dia x 150 mm L 4 in x 6 in BFM Seeflex Connector
20052  100 mm dia x 200 mm L 4 in x 8 in BFM Seeflex Connector
20053  100 mm dia x 250 mm L 4 in x 10 in BFM Seeflex Connector
20054  100 mm dia x 300 mm L 4 in x 12 in BFM Seeflex Connector
20055  100 mm dia x 350 mm L 4 in x 14 in BFM Seeflex Connector
20056  100 mm dia x 400 mm L 4 in x 16 in BFM Seeflex Connector
20057  100 mm dia x 450 mm L 4 in x 18 in BFM Seeflex Connector
20058  100 mm dia x 500 mm L 4 in x 20 in BFM Seeflex Connector
20059  100 mm dia x 550 mm L 4 in x 22 in BFM Seeflex Connector
20060  100 mm dia x 600 mm L 4 in x 24 in BFM Seeflex Connector
20061  150 mm dia x 100 mm L 6 in x 4 in BFM Seeflex Connector
20062  150 mm dia x 150 mm L 6 in x 6 in BFM Seeflex Connector
20063  150 mm dia x 200 mm L 6 in x 8 in BFM Seeflex Connector
20064  150 mm dia x 250 mm L 6 in x 10 in BFM Seeflex Connector
20065  150 mm dia x 300 mm L 6 in x 12 in BFM Seeflex Connector
20066  150 mm dia x 350 mm L 6 in x 14 in BFM Seeflex Connector
20067  150 mm dia x 400 mm L 6 in x 16 in BFM Seeflex Connector
20068  150 mm dia x 450 mm L 6 in x 18 in BFM Seeflex Connector
20069  150 mm dia x 500 mm L 6 in x 20 in BFM Seeflex Connector
20070  150 mm dia x 550 mm L 6 in x 22 in BFM Seeflex Connector
20071  150 mm dia x 600 mm L 6 in x 24 in BFM Seeflex Connector
20072  200 mm dia x 100 mm L 8 in x 4 in BFM Seeflex Connector
20073  200 mm dia x 150 mm L 8 in x 6 in BFM Seeflex Connector
20074  200 mm dia x 200 mm L 8 in x 8 in BFM Seeflex Connector
20075  200 mm dia x 250 mm L 8 in x 10 in BFM Seeflex Connector
20076  200 mm dia x 300 mm L 8 in x 12 in BFM Seeflex Connector
20077  200 mm dia x 350 mm L 8 in x 14 in BFM Seeflex Connector
20078  200 mm dia x 400 mm L 8 in x 16 in BFM Seeflex Connector
20079  200 mm dia x 450 mm L 8 in x 18 in BFM Seeflex Connector
20080  200 mm dia x 500 mm L 8 in x 20 in BFM Seeflex Connector
20081  200 mm dia x 550 mm L 8 in x 22 in BFM Seeflex Connector
20082  200 mm dia x 600 mm L 8 in x 24 in BFM Seeflex Connector
20083  250 mm dia x 100 mm L 10 in x 4 in BFM Seeflex Connector
20084  250 mm dia x 150 mm L 10 in x 6 in BFM Seeflex Connector
20085  250 mm dia x 200 mm L 10 in x 8 in BFM Seeflex Connector
20086  250 mm dia x 250 mm L 10 in x 10 in BFM Seeflex Connector
20087  250 mm dia x 300 mm L 10 in x 12 in BFM Seeflex Connector
20088  250 mm dia x 350 mm L 10 in x 14 in BFM Seeflex Connector
20089  250 mm dia x 400 mm L 10 in x 16 in BFM Seeflex Connector
20090  250 mm dia x 450 mm L 10 in x 18 in BFM Seeflex Connector
20091  250 mm dia x 500 mm L 10 in x 20 in BFM Seeflex Connector
20092  250 mm dia x 550 mm L 10 in x 22 in BFM Seeflex Connector
20093  250 mm dia x 600 mm L 10 in x 24 in BFM Seeflex Connector
20094  300 mm dia x 100 mm L 12 in x 4 in BFM Seeflex Connector
20095  300 mm dia x 150 mm L 12 in x 6 in BFM Seeflex Connector
20096  300 mm dia x 200 mm L 12 in x 8 in BFM Seeflex Connector
20097  300 mm dia x 250 mm L 12 in x 10 in BFM Seeflex Connector
20098  300 mm dia x 300 mm L 12 in x 12 in BFM Seeflex Connector
20099  300 mm dia x 350 mm L 12 in x 14 in BFM Seeflex Connector
20100  300 mm dia x 400 mm L 12 in x 16 in BFM Seeflex Connector
20101  300 mm dia x 450 mm L 12 in x 18 in BFM Seeflex Connector
20102  300 mm dia x 500 mm L 12 in x 20 in BFM Seeflex Connector
20103  300 mm dia x 550 mm L 12 in x 22 in BFM Seeflex Connector
20104  300 mm dia x 600 mm L 12 in x 24 in BFM Seeflex Connector
20105  350 mm dia x 100 mm L 14 in x 4 in BFM Seeflex Connector
20106  350 mm dia x 150 mm L 14 in x 6 in BFM Seeflex Connector
20107  350 mm dia x 200 mm L 14 in x 8 in BFM Seeflex Connector
20108  350 mm dia x 250 mm L 14 in x 10 in BFM Seeflex Connector
20109  350 mm dia x 300 mm L 14 in x 12 in BFM Seeflex Connector
20111  350 mm dia x 400 mm L 14 in x 16 in BFM Seeflex Connector
20112  350 mm dia x 450 mm L 14 in x 18 in BFM Seeflex Connector
20113  350 mm dia x 500 mm L 14 in x 20 in BFM Seeflex Connector
20115  350 mm dia x 600 mm L 14 in x 24 in BFM Seeflex Connector
20116  400 mm dia x 100 mm L 16 in x 4 in BFM Seeflex Connector
20117  400 mm dia x 150 mm L 16 in x 6 in BFM Seeflex Connector
20118  400 mm dia x 200 mm L 16 in x 8 in BFM Seeflex Connector
20119  400 mm dia x 250 mm L 16 in x 10 in BFM Seeflex Connector
20120  400 mm dia x 300 mm L 16 in x 12 in BFM Seeflex Connector
20121  400 mm dia x 350 mm L 16 in x 14 in BFM Seeflex Connector
20122  400 mm dia x 400 mm L 16 in x 16 in BFM Seeflex Connector
20123  400 mm dia x 450 mm L 16 in x 18 in BFM Seeflex Connector
20125  400 mm dia x 550 mm L 16 in x 22 in BFM Seeflex Connector
20126  400 mm dia x 600 mm L 16 in x 24 in BFM Seeflex Connector
20127  450 mm dia x 100 mm L 18 in x 4 in BFM Seeflex Connector
20128  450 mm dia x 150 mm L 18 in x 6 in BFM Seeflex Connector
20129  450 mm dia x 200 mm L 18 in x 8 in BFM Seeflex Connector
20130  450 mm dia x 250 mm L 18 in x 10 in BFM Seeflex Connector
20131  450 mm dia x 300 mm L 18 in x 12 in BFM Seeflex Connector
20133  450 mm dia x 400 mm L 18 in x 16 in BFM Seeflex Connector
20134  450 mm dia x 450 mm L 18 in x 18 in BFM Seeflex Connector
20136  450 mm dia x 550 mm L 18 in x 22 in BFM Seeflex Connector
20138  500 mm dia x 100 mm L 20 in x 4 in BFM Seeflex Connector
20139  500 mm dia x 150 mm L 20 in x 6 in BFM Seeflex Connector
20140  500 mm dia x 200 mm L 20 in x 8 in BFM Seeflex Connector
20142  500 mm dia x 300 mm L 20 in x 12 in BFM Seeflex Connector
20146  500 mm dia x 500 mm L 20 in x 20 in BFM Seeflex Connector
20147  500 mm dia x 550 mm L 20 in x 22 in BFM Seeflex Connector
20149  550 mm dia x 100 mm L 22 in x 4 in BFM Seeflex Connector
20150  550 mm dia x 150 mm L 22 in x 6 in BFM Seeflex Connector
20151  550 mm dia x 200 mm L 22 in x 8 in BFM Seeflex Connector
20152  550 mm dia x 250 mm L 22 in x 10 in BFM Seeflex Connector
20157  550 mm dia x 500 mm L 22 in x 20 in BFM Seeflex Connector
20161  600 mm dia x 150 mm L 24 in x 6 in BFM Seeflex Connector
20162  600 mm dia x 200 mm L 24 in x 8 in BFM Seeflex Connector
20163  600 mm dia x 250 mm L 24 in x 10 in BFM Seeflex Connector
20164  600 mm dia x 300 mm L 24 in x 12 in BFM Seeflex Connector
20165  600 mm dia x 350 mm L 24 in x 14 in BFM Seeflex Connector
20166  600 mm dia x 400 mm L 24 in x 16 in BFM Seeflex Connector
20173  650 mm dia x 200 mm L 26 in x 8 in BFM Seeflex Connector
20175  650 mm dia x 300 mm L 26 in x 12 in BFM Seeflex Connector
20179  650 mm dia x 500 mm L 26 in x 20 in BFM Seeflex Connector
20184  700 mm dia x 200 mm L 28 in x 8 in BFM Seeflex Connector
20186  700 mm Dia x 300 mm L 28 in x 12 in BFM Seeflex Connector
20189  700 mm dia x 450 mm L 28 in x 18 in BFM Seeflex Connector
20195  750 mm dia x 200 mm L 30 in x 8 in BFM Seeflex Connector
20196  750 mm dia x 250 mm L 30 in x 10 in BFM Seeflex Connector
20204  800 mm dia x 100 mm L 32 in x 4 in BFM Seeflex Connector
20205  800 mm dia x 150 mm L 32 in x 6 in BFM Seeflex Connector
20206  800 mm dia x 200 mm L 32 in x 8 in BFM Seeflex Connector
20208  800 mm dia x 300 mm L 32 in x 12 in BFM Seeflex Connector
20226  900 mm dia x 100 mm L 36 in x 4 in BFM Seeflex Connector
20230  900 mm dia x 300 mm L 36 in x 12 in BFM Seeflex Connector
20248 1000 mm dia x 100 mm L 40 in x 4 in BFM Seeflex Connector
20249 1000 mm dia x 150 mm L 40 in x 6 in BFM Seeflex Connector
20253 1000 mm dia x 350 mm L 40 in x 14 in BFM Seeflex Connector
20254 1000 mm dia x 400 mm L 40 in x 16 in BFM Seeflex Connector