Naylor Specialist Plastics formerly Rateoval Ltd

Naylor Specialist Plastics started trading as Rateoval Ltd in 1983 and soon earned a reputation for high quality and customer service.  We pride ourselves on our ability to provide solutions for customers needing development samples, short production runs, special sizes or fabricated assemblies.  We are an experienced manufacturer of all types of extruded thermoplastic profiles and we have expertise in making tubes and pipes.

Plastic Tube - Size Range

We produce tubes from as small as 2mm to 200mm OD and from 1mm to 20mm wall thickness and almost any variation in between!

  • Over 500 sizes
  • Many items available from existing tooling

Tool Making

Our in-house tool making capability allows us to quickly produce and modify tooling to meet your requirements.  This particularly permits the rapid production of prototypes.

Plastic Tubes - Post Extrusion Techniques

Our manufacturing expertise in different post extrusion applications has been extended by customer requirements over the years.  We have provided solutions wherever tubes have been needed to be altered.

For example:

  • Round Sections
  • Square Sections
  • Rectangular Sections

Secondary Process:

  • Drilled
  • Slitted
  • Chamfered
  • Precision Cutting
  • Internal or External Threads
  • Punching


Tube markings cans be in hot foil for standard lettering or ink jet printed for individual specialist markings, we have used UV ink to invisible print product details, which are only visible under UV light.  We are happy to own brand your product with the exact details you require.

Antimicrobial Plastic

We can offer products with an antimicrobial active ingredient that will reduce microbes on the surface of the product, making it more suitable for certain environments.  An added benefit is the molds and mildew can be reduced.  The active components used in the additive are notified on the biocidal products directive and have EFSA and FDA approval for use in foot contact applications.

Plastic Tube And Pipes

Naylor Specialist Plastics manufacture tubes and pipes for every conceivable application!  These are just some of the areas our products are used:


  • Visor Hinge Pins
  • 'L' Sections
  • Spring Retainers
  • Corrugated Conduit
  • Cover Tubes


  • HDPE Pipes for 200mm OD for Irrigation
  • LDPE Tubes for Irrigation Water and Non-potable Applications
  • Tubing for Pesticide Sprays
  • Pump Tubes
  • Turf Core Tubes
  • Dewatering Tubes
  • Round Brisket Boards
  • Cover Tubes for Steel
  • Support Frames


  • Roof Vent Ducting
  • Non-gas Carrying Pipe Sleeves
  • Drill Core Sheaths
  • Drain Rods
  • Electrical Cable Ducting in coils/sticks
  • Fibre Optic Ducting (up to 500m coils)
  • Street Lighting Orange Duct
  • Traffic Signal Orange Duct
  • Coloured Bollards
  • Insulation Tubes
  • HDPE Singlewall flexible small bore corrugated duct
  • Flexible PVC/LDPE sheath
  • High Tension Cover Tubes/Grout Tubes
  • Spacer Cord
  • Bespoke Couplings

Sports and Leisure

  • Golf Ball Collections
  • Fishing Rod Protection Cases
  • Flagsticks
  • Rake Handles
  • Birdcage Perches
  • Show Jumping Poles/Equestrian Jump Poles
  • Dart Packaging
  • Dog Agility Poles
  • Hula Hoops
  • Rainwater Diverting Tubes

Traffic Management - Posts made from HDPE in most colours including florescent

  • Square Posts and Planks
  • Translucent Beacon Diffusers
  • Hand Held Sign Posts
  • Warehouse Traffice Management Protection Systems
  • Barriers
  • Floors Stops
  • Bollards and Bollard Cover Tubes

Printing, Packaging and Textile - Core tubes available in PP, HDPE, Styrene or ABS for winding

  • Carpet
  • Plastic Film
  • Pipe Wipes
  • Plastic Bags
  • Flexibles
  • Foils
  • Stretch Wrap
  • Package Latts
  • Product Carrying Tubes
  • Product Protection Tubes

General Industry

  • PP Welding Rod
  • Board Carrying Tape Edge Belts
  • Formed Dipper Tubes
  • Vent Tubes
  • Shelf Spacer Legs
  • Pneumatic Conveyors
  • PVC Cord
  • Flexible PVC Strip
  • Packing Tubes
  • Cage/Storage Protection Tubes
  • Split Protection Tubes
  • Barrier/Bollard Systems
  • Dip Tubes
  • Fabrication Tubes
  • Conveyor Rollers
  • Flexible EVA and PVC Tubes


  • Polypropylene Rushfit Waste Pipes
  • PVC and ABS Solvent Weld Waste Pipes
  • Electrical Cable Ducting in Coils/Sticks
  • Fibre Optic Ducting (up to 50m coils)
  • Singlewall Flexible Small Bore Corrugated Duct HDPE
  • Electrical Cable Conduit Polypropylene
  • Hot and Coil Water PIpe Duct

If it's tubular - we can make it!

Plastic Tube And Pipes

Low Pressure Pipes

Irrigation Tubes - LDPE/HDPE/MDPE

Irrigation tubes can be manufactured to the exact diameter required from polyethylene in any colour.  The wall thickness can be altered depending on the application and can be supplied in straight lengths or coils as required.

Low Pressure Pipes- LDPE/HDPE

Low pressure pipes can be manufactured from HDPE up to 200mm in diameter in industry standard dimentional specifications such as SCR11, SDR17.6 and SDR26.  Other specific wall thicknesses can be achieved as required.  These tubes can be supplied in coils up to 75mm and lengths can be supplied as required up to 12m.

Pump tubes are supplied in 3", 4", 6" and 8" from LDPE in 5.8m and 6m lengths.  These are supplied plain ended and are suitable for the fitting of connection components.

Low Pressure Pipes

MetroSmooth PE Cable Ducting

Electric and Cable Ducting

A range of smooth bore solid wall polyethylene ducting in available manufactured to industry standard dimensional specifications in many ODs, colours, wall thicknesses and lengths as required.  Black marked 'Electric Cable Duct', Orange marked 'Street Lighting' and 'Traffic Signal', Purple 'Spare Comms' and 'Motorway Communications' other colours such as green are also available.  We offer all sizes in standard 6m lengths and sizes up to 75mm in coils.  Bespoke lengths can be manufactured to order as required.

Bespoke sizes can also be manufactured to solve problems on-site due to changing conditions, trench and trough sizes.

Fibre Optic Duct

Standard coils can be offered although we have found that specific lengths are more suitable for fibre optics.  We have small bore coiled ducting up to 750m in lengths to reduce the amount of joints.  Material and wall thickness as required.

Specialist Ducting

We can manufacture any size ducting up to 200mm diameter from the material of choice with the wall thickness and lengths as required.  Many colours are offered as standard.  We are also able to colour match your specific requirements.  Beposke sizes can also be manufactured to solve problems on-site due to changing conditions, trench and trough sizes.  Sub-ducts to suit main ducts can also be manufactured.

Singlewall Flexible Corrugated Ducting

Standardard sizes 16mm to 32mm HDPE singlewall corrugated coiled duct can be manufactured in any colour required.  Application have been multiple and single cables and fibre optic cables.  Coilds can be supplied up to 750m.

MetroSmooth PE Cable Ducting

Waste Pipes

Pushfit Polypropylene Waste Pipes

For ease of use and economy, there is no better alternative than the Naylor pushfit waste pipe.  Offered in standard white, black, grey and brown marked as required.  Special or specific colours can be offered to match a specific range of fittings.  Own brnading with your company name is available upon request.  Standard lengths are 3m although special lengths can be manufactured if required.

Solvent Weld Waste Pipes

Solvent weld waste pipes are available in both PVC and ABS manufactured to industry standard colours or bespoke colours to suit your fittings.  ABS has excellent impact strength and good chemical resistance.  These can be offered with your own branding details, company name and contact details if required.

Waste Pipes

Packaging/Core Tubes

Core Tubes

A full range of size specific core tubes can be manufactured from Polypropylene, HDPE, ABS and PVC.  Depending on the application tubes can be manufactured to suit a variety of processing machine applications.  Customers have a variety of important criteria when purchasing cores such as critical ID, OD, wall thicknesses, strength, temperature ranges, holding methods, surface finish, material and lengths.  We have supplied many industries with cores such as manufacturers of:

  • Plastic Bags
  • Flexibles
  • Foils
  • Stretch Wrap
  • Carpet
  • Plastic Film
  • Labels/Printing
  • Turf
  • Silage Wrap
  • Industrial Plastics and Membranes
  • Tapes

Many cores are used and sold with the product although many are used within the manufacturing process and never leave the factory.  Our customer have found they last longer than card and can be kept and used in wet or hostile conditions.

Packing Latts

Plastic packing latts can be used especially when products are being manufactured in or for the food industry where a very hygenic environment is required.  These have been sold to bag, film and wrap manufacturers who have found the product to meet all of the required criteria.

Packaging/Carrying and Protection Tubes

Many packaging applications suit bespoke tubes.  Support tubes help increase the strength of cartons and cardboard display bins providing a longer life span.  A variety of sizes can be used for the storage or flexible and rigid lengths of finished product.  Tubes can be supplied with caps or plugs to enable them to carry and protect products such as weld rods, drain roads, fishing rods as well as drawings, posters and documents.

All tubes can be offered to bespoke requirements in a wide variety of materials and colours.  Our vast collection of tooling gained over many years allows us to achieve a wide range of sizes without expensive new tooling having to be purchased.

Packaging/Core Tubes

Pliable Conduits

HDPE Flexible Ducting

Singlewall HDPE flexible corrugated conduit can be supplied in standard sizes of 16mm, 20mm, 25mm and 32mm coiled in the following lengths 25m, 50m, 100m and more if required.  Standard colours are green, purple and black although it can be manufactured in any colour required.  Applications have been for below ground multiple and single cables and fibre optic cables.  Please ask regarding suitability of HDPE ducting for your specific applications.

Polypropylene Flexible Conduit

Singlewall polypropylen flexible corrugated conduits can be supplied in standard sizes of 16mm, 20mm, 25mm and 32mm coiled in the following lengths 25m, 50m and 100m and more if required. Standard colours are red, blue, white, grey, yelllow and black although it can be manufactured in any colour required.  Applications have been for above ground use for single and multiple cables as well as cable protection on machinery.  Also as duct for hot and cold water service pipes.  Please ask regarding suitability of PP ducting for your specific application.

Flexible PVC Sheath/Cover Tubes

Flexible PVC tube (lay flat) can be manufactured in many different colours for sheathing high tension cables, flexible sub-straights and material straps etc.  Application are for protection or to increased visibility of cables in areas where damage many occur.

Flexible Singlewall Tubes

Small and large bore singlewall smooth tubes can be manufactured from flexible EVA, PVC and LDPE.  Applications are vast - up to 200mm in diameter.

Pliable Conduits

Special Projects

A wide variety of special projects have been undertaken.  Working together with our customers, we have found solutions for many prototypes, one-off projects and large volume items.  Our collection of tooling and experience has given us the capabilty to work with many different materials to achieve the required product.  Pipes, shaped tubes, profiles and cord are all extruded on existing machinery.  We are also pleased to discuss new tooling if a size you require is not in stock.  Our secondary operation department also allows us to driil, machine, internal/external thread, slot and chamfer our products to offer a finished product/component to fit our customer requirements such as:

  • Smoke Aspiration Tubes
  • Launch Tubes
  • Verge Market Posts
  • Hand Held Signs
  • Rotating/Telescopic Tubes
  • Wall Buffer Barriers

If it's tubular - we can make it!

Special Projects

Traffic Management

A variety of square, rectangular, round and D-shaped tubes offer a full diverse range of possibilities for product development and innovation.  These tubes can be manufactured from a wide variety of materials used in our production facility to meet your exact requirements regarding wall thickness, colour and length.  If you have a new idea for a product, it is likely we will have the tooling to satisfy your requirements.  If not, we can manufacture the tooling to your exact specification.  Tubes made from HDPE, PP, ABS and PVC can be easily matched to your own colour specifications.

Traffic Management

Additional/Secondary Process

Our manufacturing expertise in different post extrusion applications has been extended by customer requirements over the years.  We have provided solutions wherever tubes have been needed to be altered.

For example:

  • Rectangular Sections
  • Square Sections
  • Round Sections

Secondary Processes:

  • Drilled
  • Slotted
  • Chamfered
  • Precision Cutting
  • Internal or External Threads
  • Punching

Our secondary operation department also allows us to drill holes to an agreed tolerance against supplied drawings.  WE have matching capabilities to chamfer or mark your extrusion, a specialist machine can put an internal or external thread on any round tube with a wall thickness of 5mm or more.  We can slot tubes on their ends as a lock mechanism or within its lengths if required.  These operations allow us to offer a product/components to fit our customer requirements.  Certain materials can be re-formed to produce a flat or oval end, angled end cuts can be done to achieve your desired finish whilst a double angle end cut on a profile will achieve a point if required.  We are pleased to discuss any new ideas to develop your products.

Additional/Secondary Process

Agricultural and Equestrian

Modular Bays

Cost-effective retaining wall products.  Manufactured at our premises in West Yorkshire and shipped direct to site.  Site time is minimised and the installer avoids the potential weather disruption of retaining wall options which require on-site concrete pouring.

Typical Applications:

  • Grain Stores
  • Silage Clamps

Brisket Boards and Support Rails

HDPE brisket boards and support round rail tubes gives a more cow friendly and hygenic alternative to timber, having a smooth rounded surface and being much easier to clean off at turnout time.  Available in bespoke sizes, wall thicknesses and lengths to suit specific designs.  Tubes can be supplied in colours, if required.  All tubes can be offered with a suitable ID to suit caps/plugs.

Equestrian/Dog Jumping Poles

Equestrian - Polypropylene and HDPE is an extremely tough and resilient material.  Poles can be supplied with round, square, rectangular or D-shaped profiles to suit your requirements.  Hundreds of colour options are available and can include UV stabilising and colour fastness.

Dog Agility Poles - Polypropylene and PVC tubes manufacture to bespoke requirements (OD, ID, wall thickness, length).  Tubes can be manufactured to slide inside each other to allow swivel joints and telescopic lengths.  Tubes can be supplied with round, square, rectangular or D-shaped profiles.  Hundreds of colour options are available and can include UV stabilising and colour fastness.  All tubes can be offered with a suitable ID to suit caps/plugs.

Agricultural and Equestrian


The Naylor DENSLEEVE underground drainage system of plain-end vitrified clay pipes and fittings with flexible sleeve couplings, was developed for building drainage and associated sewerage and is manufactured to comply with the stringent requirements of BS EN295.



With worldwide operational activities, Naylor Drainage has become the world's leading international supplier of specialist pipes for trenchless technology and many prestigious projects have been supplied both in the company's domestic (UK) market as well as many continents overseas.

Reputation for product reliability and customer service is part of the Naylor tradition.

The company's trenchless technology product - Denlok® - is a specially developed vitrified clay pipe system to meet the requirements of pipe installation by trenchless construction methods which include:-

Guided Auger Boring
Pipe Bursting
Pipe Eating
Slip Lining


Naylor Specialist Plastics formerly Rateoval Ltd Overview