Flexible Connectors
Flexible Connectors
FLEX-ING™ flexible connectors have become the industry standard and benchmark for quality as a means to easily connect a pipework system to other system components such as submersible pumps or shear valves. As an integral part of any system, installers enjoy how easy they make connections in tight spaces while station owners have come to depend on their durability and their simplification of regular maintenance.

FLEXIBILITY IS KEY
The tight working conditions found in dispenser and tank sumps provide little room for installers to work, motivating some manufacturers of flexible connectors to sacrifice overall strength for flexibility. With FLEX-ING™ flexible connectors, there’s no need to compromise. Their corrugated fuel contact layers feature a 25% thicker metal construction and gain flexibility from having more corrugations per foot rather than thinner walls.
General
- USA NFPA 30-A fire rated
- All metal construction means one flexible connector for both above and below ground applications
- An 18-8 alloy with titanium, 321 Stainless Steel inner core provides a long service life
- Thick, schedule 80 hex end fittings protect against deformation of the ends
- 100% pressure tested to assure quality
- UL 2039 and CAN/ULC-S633 listed for 50psi working pressure
- EZ FIT clamp and gasket are included with each assembly
Approvals/Certifications
- UL 2039 listed for above and below ground installation for use with gasoline, gas alcohol blends (up to E85), diesel, and Biodiesel.
- UL 2039 approved for 50 psi working pressure.
Ordering Options Diagram
Use these diagrams below along with the Ordering Guide at the bottom of the page to help you build your flexible connector model numbers.

End Fitting Options
Use the options and descriptions in the Ordering Guide along with the diagrams below to select your end fitting types (two total).

Ordering Guide
Complete flexible connector part numbers have a specific order and are created using the following guidelines. Please note that full stainless steel models are available on any flexible connector that does not include swivel end fittings.
A B X C D X E
- A = Product Type
- FF = If either of the end connections are any type of swivel, this option must be selected.
- FFUL = If both end connections are fixed (non-swivel), this option must be selected.
- B = Hose Diameter
- 07 = ¾"
- 10 = 1"
- 15 = 1½"
- 20 = 2"
- 30 = 3"
- 40 = 4"
- C = Overall Length in Inches
- Use two-digit format
- D & E = End Fitting Options (non-swivel options available in stainless steel)
- EZ = EZ FIT flange only (stainless steel only)
- EZM = EZ FIT male NPT (SSEZM = stainless steel)
- EZF = EZ FIT female NPT (SSEZF = stainless steel)
- EZFG = EZ FIT fiberglass glue pipe (SSEZFG = stainless steel)
- M346 = Male swivel NPT
- F346 = Female swivel NPT
- HM = Hex male fixed NPT (SSHM = stainless steel)
- HF = Hex female fixed NPT (SSHF = stainless steel)
- BT = Hex male fixed BSPT (SSBT = stainless steel)
- BTS = Male swivel BSPT
- MS90 = 90° with male swivel NPT
- EZFFT = EZ Fit Tee (SSEZFFT = stainless steel)
- SSFF = Flat faced round flange (stainless steel only)
- SSRF = Raised faced round flange (stainless steel only)
Each EZ FIT union style coupling comes complete with couplers and gaskets.
Example: FF20X18M346XHM = Flexible connector with swivel end fitting(s), 2" hose diameter, 18" overall length, with one male swivel end fitting and one fixed Hex male end fitting.
Example: FF20X18SSEZMXSSHM = Flexible connector, 2” hose diameter, 18” overall length, with one stainless steel EZ Fit male end fitting and one stainless steel fixed hex male end fitting, full stainless steel construction.
Common Models - UL
Flexible Connector Common Configurations - Stainless Steel End Fittings
All include NPT threads unless otherwise specified as BSPT.
Item Number | Long Description |
---|---|
FF15X12EZXSSEZM | 1½" diameter stainless steel flexible connector, EZ Fit male by EZ Fit flange only, 12" OAL |
FF15X12SSHMXEZ | 1½" diameter flexible connector, stainless steel hex male by EZ Fit flange only, 12" OAL |
FF15X12SSHMXSSHM | 1½" diameter stainless steel flexible connector, hex male by hex male, 12" OAL |
FF15X18EZXSSEZM | 1½" diameter stainless steel flexible connector, EZ Fit male by EZ Fit flange only, 18" OAL |
FF15X18SSHMXEZ | 1½" diameter stainless steel flexible connector, hex male by EZ Fit flange only, 18" OAL |
FF15X18SSHMXSSEZM | 1½" diameter stainless steel flexible connector, hex male by EZ Fit male, 18" OAL |
FF15X18SSHMXSSHM | 1½" diameter stainless steel flexible connector, hex male by hex male, 18" OAL |
FF15X24EZXSSEZM | 1½" diameter stainless steel flexible connector, EZ Fit male by EZ Fit flange only, 24" OAL |
FF15X24SSHMXEZ | 1½" diameter stainless steel flexible connector, hex male by EZ Fit flange only, 24" OAL |
FF15X24SSHMXSSHM | 1½" diameter stainless steel flexible connector, hex male by hex male, 24" OAL |
FF20X12EZXSSEZM | 2" diameter stainless steel flexible connector, EZ Fit male by EZ Fit flange only, 12" OAL |
FF20X12SSHMXEZ | 2" diameter stainless steel flexible connector, hex male by EZ Fit flange only, 12" OAL |
FF20X12SSHMXSSEZM | 2" diameter stainless steel flexible connector, hex male by EZ Fit male, 12" OAL |
FF20X12SSHMXSSHM | 2" diameter stainless steel flexible connector, hex male by hex male, 12" OAL |
FF20X18EZXSSEZM | 2" diameter stainless steel flexible connector, EZ Fit male by EZ Fit flange only, 18" OAL |
FF20X18SSHMXEZ | 2" diameter stainless steel flexible connector, hex male by EZ Fit flange only, 18" OAL |
FF20X18SSHMXSSEZM | 2" diameter stainless steel flexible connector, hex male by EZ Fit male, 18" OAL |
FF20X18SSHMXSSHM | 2" diameter stainless steel flexible connector, hex male by hex male, 18" OAL |
Flexible Connector Common Configurations - Nickel Plated Steel End Fittings
All include NPT threads unless otherwise specified as BSPT.
Item Number | Long Description |
---|---|
FF10X18HMXM346 | 1" diameter flexible connector, hex male by male swivel, 18" OAL |
FF15X12BTXBTS | 1½" diameter flexible connector, hex male (BSPT) by male swivel (BSPT), 12" OAL |
FF15X12HMXM346 | 1½" diameter flexible connector, hex male by male swivel, 12" OAL |
FF15X12M346X2F | 1½" diameter flexible connector, male swivel by 2" hex female, 12" OAL |
FF15X12SSHMXEZ | 1½" diameter flexible connector, stainless steel hex male by EZ Fit flange only, 12" OAL |
FF15X15HMXM346 | 1½" diameter flexible connector, hex male by male swivel, 15" OAL |
FF15X16BTXBTS | 1½" diameter flexible connector, hex male (BSPT) by male swivel (BSPT), 16" OAL |
FF15X16HMXM346 | 1½" diameter flexible connector, hex male by male swivel, 16" OAL |
FF15X18EZMXEZFFT | 1½" diameter flexible connector, EZ Fit male by EZ Fit tee, 18" OAL |
FF15X18EZMXEZM | 1½" diameter flexible connector, EZ Fit male by EZ Fit male 18" OAL |
FF15X18HMXEZM | 1½" diameter flexible connector, hex male by EZ Fit male, 18" OAL |
FF15X18HMXM346 | 1½" diameter flexible connector, hex male by male swivel, 18" OAL |
FF15X18M346X2F | 1½" diameter flexible connector, male swivel by 2" hex female, 18" OAL |
FF15X24HMXM346 | 1½" diameter flexible connector, hex male by male swivel, 24" OAL |
FF20X12HMXM346 | 2" diameter flexible connector, hex male by male swivel, 12" OAL |
FF20X15HMXM346 | 2" diameter flexible connector, hex male by male swivel, 15" OAL |
FF20X18HMXEZF | 2" diameter flexible connector, hex male by EZ Fit female, 18" OAL |
FF20X18HMXM346 | 2" diameter flexible connector, hex male by male swivel, 18" OAL |
FF20X18M346XF | 2" diameter flexible connector, male swivel by hex female, 18" OAL |
FF20X24BTXBTS | FIREFLEX 2" X 24" Fixed male by swivel male-BSPT |
FF20X24HMXM346 | 2" diameter flexible connector, hex male by male swivel, 24" OAL |
FF20X24HMXMS90 | 2" diameter flexible connector, hex male by 90° male swivel, 24" OAL |
FFUL15X18HMXHM | 1½" diameter flexible connector, hex male by hex male, 18" OAL |
FFUL20X18HMXHM | 2" diameter flexible connector, hex male by hex male, 18" OAL |
Common Models - EN
Connection at Pump Manifold - All NPT
Item Number | Long Description |
---|---|
FF20X15HMXMS90 | FIREFLEX 2" X 15" Fixed Hex male x welded 90 elbow w/ Swivel male-NPT |
FF20X18HMXMS90 | FIREFLEX 2" X 18" Fixed Hex male x welded 90 elbow w/ Swivel male-NPT |
FF20X24HMXMS90 | 2" diameter flexible connector, hex male by 90° male swivel, 24" OAL |
Connection at Pump Manifold - NPT Pump End, BSPT Pipe End
Item Number | Long Description |
---|---|
FF20X24BTXMS90 | FIREFLEX 2" X 24" Fixed Hex male-BSPT x welded 90 elbow w/ Swivel male-NPT |
Specialty FIREFLEX Flexible Connectors
MOC Specified Product for Connection at Pump Manifold - NPT Pump End, Square Face Flange on Pipe End.
Item Number | Long Description |
---|---|
FF20X16SFBVSSMSXMS90 | FIREFLEX 2" X 16" SS Ball Valve w/ UPP® Brass Sq. Face Flange on one end, Male swivel on other X welded 90 to male swivel-NPT |
FF20X18SFBVSSMSXMS90 | FIREFLEX 2" X 18" SS Ball Valve w/ UPP® Brass Sq. Face Flange on one end, Male swivel on other X welded 90 to male swivel-NPT |
FF20X20SFBVSSMSXMS90 | FIREFLEX 2" X 20" SS Ball Valve w/ UPP® Brass Sq. Face Flange on one end, Male swivel on other X welded 90 to male swivel-NPT |
FF20X22SFBVSSMSXMS90 | FIREFLEX 2" X 22" SS Ball Valve w/ UPP® Brass Sq. Face Flange on one end, Male swivel on other X welded 90 to male swivel-NPT |
FF20X24SFBVSSMSXMS90 | FIREFLEX 2" X 24" SS Ball Valve w/ UPP® Brass Sq. Face Flange on one end, Male swivel on other X welded 90 to male swivel-NPT |
FF20X30SFBVSSMSXMS90 | FIREFLEX 2" X 30" SS Ball Valve w/ UPP® Brass Sq. Face Flange on one end, Male swivel on other X welded 90 to male swivel-NPT |
Flexible Connectors with Differing Hose and End Fitting Diameters
All end fittings are, by default, the same diameter as the hose. If you require a flexible connector where the end fitting diameter does not match the hose diameter, the size must be indicated numerically in front of the corresponding fitting as in the following example.
Rules:
- End fitting diameters can not be smaller than hose diameters.
- Only one hose fitting per flexible connector can be of a different diameter than the hose diameter.
- End fitting diameter must only be one size larger than hose (1" hose could use 1½" fitting, 1½" hose could use 2" fitting, etc.)
Example : FFUL15X18HMX2HM = FIREFLEX flexible connector with fixed end fittings, 1½" hose diameter, 18" overall length, with one 1½" hex male fixed end fitting and one 2" hex male fixed end fitting.
Brochures
Title | Type | Size | |
---|---|---|---|
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FFS-0649 Flexible Connectors Brochure.pdf | 6.15 MB | |
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FFS-0271SP (UL) Flexible Connectors Datasheet (Spanish).pdf | 5.62 MB | |
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FFS-0271 (UL) Flexible Connectors Datasheet.pdf | 5.2 MB |
Catalogs
Title | Type | Size | |
---|---|---|---|
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FFS-0158 (EN) Piping Containment-Service Station Hardware Catalogue.pdf | 15.72 MB | |
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FFS-0216 (UL) FFS Product Catalog.pdf | 20.25 MB |
Drawings
Manuals
Title | Type | Size | |
---|---|---|---|
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407293001 r2 Flex Connector Installation Guide.pdf | 3.03 MB |