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Quick Ref Limitations Summary

BFM Quick Reference Guide Diameters

BFM Quick Reference Guide Lengths

 

   

Connectors (without rings)

(Length given is 'body' measurement excluding cuffs)

Connectors with Rings

(Available in PE (plastic) & 6mm SS (Stainless Steel))

Spigots


 

Minimum diameter


100mm (4”) for all (then available at 125mm (5”) & 150mm (6”) and in 50mm (2”) increments) NB: Flexi's not available in 125mm (5") diameter


100mm (4”)

100mm (4”) (then available at 125mm (5”) & 150mm (6”) and in 50mm (2”) increments up to 1.65m (65”)

Maximum diameter

300mm (12”) for Flexi, Flexi-Light & Flexi-Earthed
500mm (20") for Teflex NP
650mm (251/2”) for TR & FM1 Breathers 
1.650m (65”) for standard, Blanking Caps & Bins/Socks, Kevlar Covers

500mm (20”)  for SS Rings
1.0m (391/2”) for Plastic Rings 
1.65m (65”) 
(no custom sizes available)

Minimum Length

80mm (3”) (except as noted below)
100mm (4") for FM1
200mm (8”) for Flexi & Flexi-light
250mm (10”) for Flexi-Earthed
350mm (14”) for fitting on a tumbler or gyratory screening machine

150mm (6”) 37mm (11/2”)
NOTE:  If tail is cut down, ensure there is a heat sink to prevent distorting the spigot when welding onto pipe.

Maximum Length

(From 100mm, connectors are available in 50mm (2”) increments up to:)

200mm (8”) Ø 1,050 - 1,650m (41-65”) ALL 
500mm (20”) Ø 700mm - 1,000mm (271/2-391/2”) ALL
800mm (311/2”)
for tapers with Ø to 300mm incl

Then for Ø up to 650mm (251/2”):
1.0m (391/2”) for Seeflex 060ES, Teflex NP, FM1, Blanking Bins/Socks & Kevlar Covers
1.5m (59”) for LM3, LM4 & Teflex
2.0m (6ft 61/2”)
for 040AS
4.0m (13ft 11/2")
for Flexi, FlexiLight/Earthed
6.0m (19ft 8”)
Ø>650mm (251/2”) for Seeflex 020E/040E

For Ø ≤ 500mm (191/2”):
1,000mm (391/2”) for Teflex NP & Blanking Bins/Socks
1,500mm (59”) for LM3, LM4 & Teflex
2,000mm (6ft 61/2”) for 040AS
4,500mm (14ft 9”) for Seeflex 020E/040E

For Ø550 - 1,000mm (211/2 - 391/2”)
500mm (20”) - Plastic rings only

 

89mm (31/2”) Total length
Head = 37mm (11/2”)
Tail = 52mm (23/64”)

Other

 

The smallest installation gap a connector can be fitted into is 65mm (21/2”) (for an 80mm (3”) long connector).

Note:  This may not be suitable for frequently changed connectors or those with more than a small amount of vibratory movement.

Distance between spigot & rings:
for 150mm (6”) long  = 75mm (3“)
for all other lengths = 100mm (4”)

Multiple rings evenly spaced at a min: 
100mm (4”) apart for CL > 850mm (331/2") (max 4)
200mm (6") apart for CL ≥ 850mm (331/2") (max 10)

Diameter (Ø) Measurements:
100mm (4”) Ø is measured to outside edge (OD) (to fit standard tube)
125mm (5”) Ø & over measured to inside edge (ID) (to fit standard pipe)
    Blanking caps are 30mm (13/16”) in depth Only Seeflex 040E (incl Wash Sleeves), Seeflex 040AS, LM3, LM4, Teflex and Teflex NP are supplied with rings (Seeflex 020E is on request only). A +/- 2mm tolerance applies to the tail diameter measurement
Wall Thickness:  2mm (5/64”) thick
    All Ø 800mm (311/2”) & over have finger-loops as standard to aid installation from one side Maximum number of rings: 10 (except Teflex NP which is 8) Available in T304L SS and T316L SS, as well as C22 Hastelloy
      Tapered connectors cannot be made with rings Internal finish of the stainless steel is  0.8Ra micro-metres (32Ra micro-inches).

Connector Quick Ref Facts

 

020E

040E

040AS

060ES

Teflex
NP

Black

Flexi 

(& Flexi Light/Earthed)

LM4

LM3

Teflex

FM1

Teflex
NP

Opaque

Operating Temperature
(Continuous)

(Surge)


-25 - 80°C 
(-13-176°F)

100°C (212°F)


-25  - 110°C 
(-13-230°F)

120°C (248°F)


-25 - 95°C
(-13-203°F)

100°C
(212°F)


-25 - 120°C
(-13 - 248°F)

130°C
(266°F)


-73 -300°C
(-99 - 572°F)

316°C
(600°F)


-20 - 85°C
(-4-185°F)

-


<130°C
(266°F) 

150°C
(302°F)


-70 - 94°C
(-94-201°F)

107°C
(225°F)


<260°C (500°F)
280°C (536°F)

<130˚C (266˚F)
150˚C (302˚F)


-73 -300°C
(-99 - 572°F)

316°C
(600°F)

Maximum operating pressure 1.5 PSI 
0.689 kPa
0.1034 BAR
5.0 PSI 
34.474 kPa
0.3448 BAR
5.0 PSI 
34.474 kPa
0.3448 BAR

19 PSI
131.000kPa
1.310 BAR

3.0 PSI
20.684 KPA
0.2069 BAR
- - - - - 3.0 PSI
20.684 KPA
0.2069 BAR
Surface Resistivity (Ohms) 1010 1010 108 1010 106 N/A 109 108 Insulative 108 Insulative
FDA Approved 21 CFR 177.1680
& 177.2600
21 CFR 177.1680
& 177.2600
21 CFR 177.1680
& 177.2600
21 CFR 177.1680
& 177.2600
21 CFR
177.1550
175.105 &
178.3297
21 CFR 177.1680
& 175.105 (adhesives)
& 177.2600

21 CFR 
177.2800

21 CFR 177.1680
& 177.2600
21 CFR 177.1550 21 CFR 177.2800 21 CFR
177.1550 &
175.105
3A Certified      Yes ( 20- ) Yes ( 20- ) Yes ( 20- )                                 Yes ( 20- ) TBC Yes ( 20- ) - - - - TBC
EU Approved EC 1935/2004,
2023-2006
& 10/2011
EC 1935/2004,
2023-2006
& 10/2011
EC 1935/2004,
2023-2006
& 10/2011
EC 1935/2004,
2023-2006
& 10/2011
EC
1935/2004
10/2011
EC 1935/2004,
2023-2006 & 10/2011
EC 1935/2004
& 10/2011
EC 1935/2004
& 10/2011
- - EC
1935/2004
10/2011
ATEX Certified  All dust explosion hazardous areas (some restrictions apply). Restrictions apply - -

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