
Standard EF Liquid-Tight PVC Covered Steel Range
D-Series EF is a fully flexible range with exceptional mechanical strength that is typically found in both machining and processing and handling environments. This range is suited to both liquid-tight applications and the most demanding environments including lighting, communication, air-conditioning systems and fire alarm systems.
D-Series EF is rated IP67 liquid-tight, flame retardant and oil, sunlight and UV resistant.
Temperature Range: | -20°C to +70°C, intermittant up to +90°C |
---|---|
Material: | Galvanised steel core with cord packing and a thick thermoplastic PVC jacket |
Colour: | Black as standard (Grey available to order) |
Ingress Protection: | IP67 |
Compression Reistance: | 1250 N |
Impact Resistance: | 6 J |
Tensile Strength: | 1000 N |
Other Features: | Oil, Sunlight & UV Resistant, Flame Retardant Suitable for outdoor and burial installations Manufactured to BS EN 61386 |
Product Code |
Trade Size |
Product Description |
Internal Diameter |
External Diameter |
Bending Radius (Static) |
Bending Radius (Dynamic) |
Coil Size |
---|---|---|---|---|---|---|---|
D16EF-75M | 16mm | 16mm EF Liquid-Tight Metallic Flexible Conduit | 12.6mm | 17.8mm | 60mm | 85mm | 75m |
D20EF-60M | 20mm | 20mm EF Liquid-Tight Metallic Flexible Conduit | 16.0mm | 21.1mm | 75mm | 110mm | 60m |
D25EF-50M | 25mm | 25mm EF Liquid-Tight Metallic Flexible Conduit | 21.0mm | 26.4mm | 90mm | 140mm | 50m |
D32EF-30M | 32mm | 32mm EF Liquid-Tight Metallic Flexible Conduit | 26.5mm | 33.1mm | 120mm | 170mm | 30m |
D40EF-30M | 40mm | 40mm EF Liquid-Tight Metallic Flexible Conduit | 35.1mm | 41.8mm | 150mm | 215mm | 30m |
D50EF-15M | 50mm | 50mm EF Liquid-Tight Metallic Flexible Conduit | 40.3mm | 47.8mm | 200mm | 250mm | 15m |
D63EF-15M | 63mm | 63mm EF Liquid-Tight Metallic Flexible Conduit | 51.6mm | 59.9mm | 250mm | 300mm | 15m |
D75EF-7.5M | 75mm | 75mm EF Liquid-Tight Metallic Flexible Conduit | 63.3mm | 72.6mm | 280mm | 375mm | 7.5m |
D90EF-7.5M | 90mm | 90mm EF Liquid-Tight Metallic Flexible Conduit | 78.4mm | 88.4mm | 425mm | 530mm | 7.5m |
D115EF-7.5M | 115mm | 115mm EF Liquid-Tight Metallic Flexible Conduit | 102.1mm | 113.8mm | 490mm | 600mm | 7.5m |


- Material: Nickel Plated Brass
- Temperature Range: -45°C to +105°C continuous
- Construction: 4 Part Fitting (Body, Metal Ferrule, Sealing Ring & End Cap)
- UL & CSA Approved Available
- IP67
Nickel Plated Brass IP67 Straight Fittings
Product Code | Description | Conduit Size | Thread Size | Pack Size |
---|---|---|---|---|
DF12 | 12mm Liquid-Tight Fixed Fitting | 12mm | M16 x 1.5mm | 10 |
DF16 | 16mm Liquid-Tight Fixed Fitting | 16mm | M16 x 1.5mm | 10 |
DF16-20 | 16mm Liquid-Tight Fixed Fitting | 16mm | M20 x 1.5mm | 10 |
DF20 | 20mm Liquid-Tight Fixed Fitting | 20mm | M20 x 1.5mm | 10 |
DF25 | 25mm Liquid-Tight Fixed Fitting | 25mm | M25 x 1.5mm | 10 |
DF32 | 32mm Liquid-Tight Fixed Fitting | 32mm | M32 x 1.5mm | 5 |
DF40 | 40mm Liquid-Tight Fixed Fitting | 40mm | M40 x 1.5mm | 2 |
DF50 | 50mm Liquid-Tight Fixed Fitting | 50mm | M50 x 1.5mm | 2 |
DF63 | 63mm Liquid-Tight Fixed Fitting | 63mm | M63 x 1.5mm | 2 |
DF75 | 75mm Liquid-Tight Fixed Fitting | 75mm | M75 x 1.5mm | 1 |
DF90 | 90mm Liquid-Tight Fixed Fitting | 90mm | M90 x 2.0mm | 1 |


- Material: Nickel Plated Brass
- Temperature Range: -45°C to +105°C continuous
- Construction: 4 Part Fitting (Body, Metal Ferrule, Sealing Ring & End Cap)
- IP67
Nickel Plated Brass IP67 Swivel Fittings
Product Code | Description | Conduit Size | Thread Size | Pack Size |
---|---|---|---|---|
DF12S | 12mm Liquid-Tight Swivel Fitting | 12mm | M16 x 1.5mm | 10 |
DF16S | 16mm Liquid-Tight Swivel Fitting | 16mm | M16 x 1.5mm | 10 |
DF16-20S | 16mm Liquid-Tight Swivel Fitting | 16mm | M20 x 1.5mm | 10 |
DF20S | 20mm Liquid-Tight Swivel Fitting | 20mm | M20 x 1.5mm | 10 |
DF25S | 25mm Liquid-Tight Swivel Fitting | 25mm | M25 x 1.5mm | 10 |
DF32S | 32mm Liquid-Tight Swivel Fitting | 32mm | M32 x 1.5mm | 5 |
DF40S | 40mm Liquid-Tight Swivel Fitting | 40mm | M40 x 1.5mm | 2 |
DF50S | 50mm Liquid-Tight Swivel Fitting | 50mm | M50 x 1.5mm | 2 |
DF63S | 63mm Liquid-Tight Swivel Fitting | 63mm | M63 x 1.5mm | 2 |



- Material: Nickel Plated Brass
- Temperature Range: -45°C to +105°C continuous
- Construction: 4 Part Fitting (Body, Metal Ferrule, Sealing Ring & End Cap)
- UL & CSA Approved Available
- IP67
Nickel Plated Brass IP67 90deg Elbow Fittings
Product Code | Description | Conduit Size | Thread Size | Pack Size |
---|---|---|---|---|
DF12E90 | 12mm Liquid-Tight 90deg Elbow Fitting | 12mm | M16 x 1.5mm | 10 |
DF16E90 | 16mm Liquid-Tight 90deg Elbow Fitting | 16mm | M16 x 1.5mm | 10 |
DF16-20E90 | 16mm Liquid-Tight 90deg Elbow Fitting | 16mm | M20 x 1.5mm | 10 |
DF20E90 | 20mm Liquid-Tight 90deg Elbow Fitting | 20mm | M20 x 1.5mm | 10 |
DF25E90 | 25mm Liquid-Tight 90deg Elbow Fitting | 25mm | M25 x 1.5mm | 5 |
DF32E90 | 32mm Liquid-Tight 90deg Elbow Fitting | 32mm | M32 x 1.5mm | 5 |
DF40E90 | 40mm Liquid-Tight 90deg Elbow Fitting | 40mm | M40 x 1.5mm | 2 |
DF50E90 | 50mm Liquid-Tight 90deg Elbow Fitting | 50mm | M50 x 1.5mm | 2 |
DF63E90 | 63mm Liquid-Tight 90deg Elbow Fitting | 63mm | M63 x 1.5mm | 2 |
DF75E90 | 75mm Liquid-Tight 90deg Elbow Fitting | 75mm | M75 x 1.5mm | 1 |


- Material: Stainless Steel (304)
- Temperature Range: -45°C to +105°C continuous
- Construction: 4 Part Fitting (Body, Metal Ferrule, Sealing Ring & End Cap)
- UL & CSA Approved Available
- IP67
- 316 Stainless Steel also available
Stainless Steel (304) IP67 Fixed Fittings
Product Code | Description | Conduit Size | Thread Size | Pack Size |
---|---|---|---|---|
DF16SS | 16mm Liquid-Tight Stainless Steel Fitting | 16mm | M16 x 1.5mm | 10 |
DF16-20SS | 16mm Liquid-Tight Stainless Steel Fitting | 16mm | M20 x 1.5mm | 10 |
DF20SS | 20mm Liquid-Tight Stainless Steel Fitting | 20mm | M20 x 1.5mm | 10 |
DF25SS | 25mm Liquid-Tight Stainless Steel Fitting | 25mm | M25 x 1.5mm | 10 |
DF32SS | 32mm Liquid-Tight Stainless Steel Fitting | 32mm | M32 x 1.5mm | 5 |
DF40SS | 40mm Liquid-Tight Stainless Steel Fitting | 40mm | M40 x 1.5mm | 2 |
DF50SS | 50mm Liquid-Tight Stainless Steel Fitting | 50mm | M50 x 1.5mm | 2 |
DF63SS | 63mm Liquid-Tight Stainless Steel Fitting | 63mm | M63 x 1.5mm | 2 |



- Material: Stainless Steel (304)
- Temperature Range: -45°C to +105°C continuous
- Construction: 4 Part Fitting (Body, Metal Ferrule, Sealing Ring & End Cap)
- UL & CSA Approved Available
- IP67
- 316 Stainless Steel also available
Stainless Steel (304) IP67 90deg Elbow Fittings
Product Code | Description | Conduit Size | Thread Size | Pack Size |
---|---|---|---|---|
DF16E90SS | 16mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 16mm | M16 x 1.5mm | 10 |
DF16-20E90SS | 16mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 16mm | M20 x 1.5mm | 10 |
DF20E90SS | 20mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 20mm | M20 x 1.5mm | 10 |
DF25E90SS | 25mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 25mm | M25 x 1.5mm | 5 |
DF32E90SS | 32mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 32mm | M32 x 1.5mm | 5 |
DF40E90SS | 40mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 40mm | M40 x 1.5mm | 2 |
DF50E90SS | 50mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 50mm | M50 x 1.5mm | 2 |
DF63E90SS | 63mm Liquid-Tight Stainless Steel 90deg Elbow Fitting | 63mm | M63 x 1.5mm | 2 |
FAQs
At Flex-It, our liquid-tight metallic fittings are available in a plethora of sizes and materials, catering to a vast array of project applications.
Straight, swivel and elbow fittings start from 12mm and range right the way up to 90mm. These are available in stainless steel or nickel-plated brass, so you’re bound to find the perfect match – no matter the project you’re working on.
Not sure which size or material is best for you?
Be sure to get in touch with our experts for recommendations and further advice.
There are a number of benefits of using liquid-tight metallic conduits for your wiring and cable requirements, the main one being their exceptional mechanical strength – making them the best option wherever you need a secure connection.
Another great thing about flexible, liquid-tight conduits is that they offer outstanding protection against most liquids.
To learn more about liquid-tight conduits, drop us an email at sales@flex-it.co.uk – we’re always happy to help!
If you’re working in an environment susceptible to moisture build-up, or an area that requires high mechanical strength, then a liquid-tight metallic conduit will be more than ideal.
Thanks to their unmatched strength, durability and heat and liquid resistance, they’re the ultimate choice for the most demanding environments, including lighting, communication, air-conditioning systems and fire alarm systems.
Our D-series guarantees strength and safety and is among the best choices for flexible conduits.
Browse our range and place your order online today!
Established in 1995, we’re one of the UK’s biggest suppliers of conduit and cable management systems here at Flex-it.
Over the years, we’ve worked with many high-profile companies, including Buckingham Palace, the National Portrait Gallery and Google.
Having spent decades building our reputation, you can trust us when we say we’re your go-to stockist of flexible conduits.
Still not sold on our D-series?
For expert technical advice or further product information, give our specialists a call on 01530 812 195.