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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 (25^1/2”) for TR & FM1 Breathers 1.650m (65”) for standard, Blanking Caps & Bins/Socks, Kevlar Covers	500mm (20”) for SS Rings 1.0m (39^1/2”) 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 (1^1/2”) 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 (27^1/2-39^1/2”) ALL 800mm (31^1/2”) for tapers with Ø to 300mm incl Then for Ø up to 650mm (25^1/2”): 1.0m (39^1/2”) for Seeflex 060ES, Teflex NP, FM1, Blanking Bins/Socks & Kevlar Covers 1.5m (59”) for LM3, LM4 & Teflex 2.0m (6ft 6^1/2”) for 040AS 4.0m (13ft 1^1/2") for Flexi, FlexiLight/Earthed 6.0m (19ft 8”) Ø>650mm (25^1/2”) for Seeflex 020E/040E	For Ø ≤ 500mm (19^1/2”): 1,000mm (39^1/2”) for Teflex NP & Blanking Bins/Socks 1,500mm (59”) for LM3, LM4 & Teflex 2,000mm (6ft 6^1/2”) for 040AS 4,500mm (14ft 9”) for Seeflex 020E/040E For Ø550 - 1,000mm (21^1/2 - 39^1/2”) 500mm (20”) - Plastic rings only	89mm (3^1/2”) Total length Head = 37mm (1^1/2”) Tail = 52mm (2^3/64”)
Other		The smallest installation gap a connector can be fitted into is 65mm (2^1/2”) (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 (33^1/2") (max 4) 200mm (6") apart for CL ≥ 850mm (33^1/2") (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 (1^3/16”) 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
		Blanking caps are 30mm (1^3/16”) in depth		Wall Thickness: 2mm (^5/64”) thick
		All Ø 800mm (31^1/2”) & 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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