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Plastic Pipe Protection Caps & Plugs

 (9 product groups)

Plastic pipe protection caps and plugs are designed to minimize potential threats to pipe ends and tubing by securing pipes against contaminants, dust and other damages. They are a cost-effective solution that helps prevent potential leaks and damages during transportation, storage and handling of the pipes.

Types of Pipe Protection Caps & Plugs

Choosing a cap or plug that prevents ingress is crucial to your applications. You need to be sure that the cap or plug you choose is resistant to varying different factors such as the environment in which they are used. Below are just some of the plastic end caps we offer:

  • Flexible Pipe Caps - a flexible cap designed to cover large-size applications providing optimal protection during storage and transit.

  • Tapered Caps & Plugs - an easy removal style cap that's the perfect match for hydraulic fittings, with a wide flange, heavy duty and standard to suit your projects.

  • Ribbed Pipe End Plugs - the plugs outside diameter provides a tight fit with the mating inside diameter to provide excellent protection against contaminants entering the pipe.

  • Recessed Pipe Caps - protect bevels and internal walls from corrosion and damage.

Our range also features protective caps in styles such as plastic tube caps, finned hole plugs, standard-size pipe caps and more, all designed to protect your equipment.

We stock plastic pipe end caps and plastic plugs manufactured from, low-density polyethylene (LDPE), PVC, TPE, and TPR.

We are a manufacturer of thousands of components and low-cost solutions. So, be sure to search our range for flange covers, washers, fasteners, access hardware, and much more. Many different variations, styles, colours and materials are available across all products in our range. Interested in fast delivery times, free samples, quotes and 3D CADs - then look no further than Essentra Components.

For more information about our range of plastic caps, check out these guides: 

A Guide to Plastic End Caps 

How to choose Caps & Plugs

List Grid

Driveshaft Protection Caps

Driveshaft Protection Caps are used for the protection and masking of driveshaft, and the surrounding bearings, from oil and an array of chemicals.

Available in a choice of materials; Low-Density Polyethylene (LDPE) and Flexible Polyvinyl Chloride (PVC). The PVC option also provides resistance to tearing and splitting.

Our range fits DIN 748, IEC 600-72 and ISO R775.

  • Materials: LDPE and Flexible PVC
  • Colour: Yellow
  • Series Code: SR1079

Flexible Pipe Caps

Rotational Moulded Cap protects threaded pipe ends. Due to its softer material it allows for easier fitting on pipes. These caps have outstanding toughness and are puncture resistant with good flexibility which makes assembly or removal easier.

They are used to fit different pipe and tubing configurations, and they can be used in applications such as automotive, HVAC, construction, and industrial equipment. These caps provide protection from dust, dirt, and moisture.

  • Material: PE, LDPE
  • Colour: Yellow, White, Black


Series Code :SR1388

Heavy Duty Pipe Caps

Heavy Duty Pipe Caps are used to protect the end of a pipe from dust, dirt, and other impurities. They are appropriate for nominal pipe sizes and provide a low-cost, high-quality choice. Internal ribs ensure a snug fit and release after pressure is applied. The caps come with or without a vent hole.

Used to keep small pipes safe during transportation and storage. It is also simple to install and remove, thanks to the press fit design. Temperature resistance ranges from 66C to -40C. Used in plumbing, heating, ventilation, and industrial applications.

  • Material: PE
  • Colour: Black, Yellow


Series Code :SR1389

NPT Thread Plugs

NPT thread plugs are used to seal and protect the ends of BSP/NPT threaded pipes and fittings. Their robust design allows them to withstand high pressure, temperature, corrosion, dirt, and damage during storage and shipment.

Additionally, their tapered form allows the component to plug numerous inner diameters, assuring a tight and leak-free fit. They are simple to install due to their push-fit mounting style and are used in plumbing pipes, HVAC, automotive, and industrial applications.

  • Material: LDPE
  • Colour: Blue


Series Code :SR1114

Ribbed Pipe-End Plugs

Ribbed Pipe End Plugs are designed to seal the ends of pipes and tubes securely. The straight wall on the outside diameter of the plug offers a solid friction fit with the inside diameter of the mating pipe, giving good protection against impurities entering the pipe.

They are offered in two designs, each with flexible ribs in varying sizes to accommodate a range of NPT and drill pipe schedules. Easy to install and remove due to their close fit.

The are ideal for mechanical and engineering applications in a wide range of industries.

  • Two designs, each with flexible ribs in varying sizes to accommodate a range of NPT and drill pipe schedules.
  • Designed to seal the ends of pipes and tubes securely.
  • Ideal for mechanical and engineering use.
Material: LDPE Colour: Black, Blue, Red Series Code: SRPAR, SR1069, SRILUPE, SR1171, SRILUH

SAE Butt Weld Covers

SAE Butt Weld Covers are primarily used in hydraulic and pneumatic applications. They are a protective cap for use in 3000 and 6000 SAE PSI applications. Provides maximum protection for butt-weld ends on valves, pumps, and heat exchangers. These will not crack or chip and eliminates the need for plywood, masonite and fasteners.

Saves labour on assembly costs as they easily push-fit into place by hand. The special reverse angle design matches the butt-weld angle and completely covers or protects the end during shipping and storage.

Made from Low-Density Polyethylene (PE-LD) and two colour options are available. The Natural, translucent option is designed to protect split-flange coupling surfaces and allows for the O-ring to remain visible, while providing secure protection by an internal locking bead. The Red option is ideal for SAE flange nipple. Features a temperature range from minimum -30 degrees C up to a maximum +50 degrees C.

  • Primarily for use in 3000 and 6000 SAE PSI hydraulic and pneumatic applications.
  • Natural option protects split-flange coupling surfaces.
  • Features a temperature range from minimum -30 degrees C up to a maximum +50 degrees C.
Material: LDPE Colour: Red, Natural Series Code: SRCALSAE, SR1029, SRF0004

Standard Size Pipe Caps

Standard Size Pipe Caps are a low cost protectve cap with a high quality finish.

Moulded caps that are designed to grip over the outside diameter of threaded and non-threaded pipe ends, preventing the ingress of foreign materials during storage and shipping.

The cap design features internal ribs that ensure a tight fit. In addition, the range includes caps that have a small vent hole to eliminate air pressure build up, and meets ANSI and DIN specifications.

  • Designed to prevent ingress of foreign material during storage or shipping.
  • Includes internal ribs to ensure a tighter fit.
  • Features a small vent hole to eliminate air pressure build up.
Material: LDPE, PVC Colour: Green, Blue, Orange, Yellow, Red, Black, Natural, Grey Series Code: SR1358, SRTXTPE, SR1387, SR1340

Tapered Caps & Plugs - Heavy Duty

Tapered Caps & Plugs protect threaded and non-threaded pipes, ports, and access points from damage, dust and debris during storage and shipping. They have a heavy duty wall and a tapered sealing ring for maximum protection.

Heavy duty tapered caps and plugs are designed to provide extra protection and durability where standard caps and plugs would not suffice. It provides a secure seal by push fit, excellent durability, and resistance to impact and abrasion. Used for applications in machinery, automotive, and industrial.

  • Material: LDPE
  • Colour: White, Red


Series Code :SR1003

Tapered Caps & Plugs - Standard

Standard Tapered Caps and Plugs are versatile components designed for use as a plug or a cap. The tapered profile allows the part to plug multiple inner diameters or to cap multiple outer diameters.

These dual function plugs or caps are typically used to protect against damage, dirt, moisture, and other corrision during storage and shipping.

With a straight forward push fit design, these dual function components are easy to insall and remove. The extensive range offers a varied selection of sizes that range from 2.9 mm up to 345.0 mm.

  • Plug design suitable for multiple inside and outside diameters.
  • Protects threaded and non-threaded pipes, ports, and access points against damage, dirt, moisture, debris, and corrosion.
  • Suitable for use in hydraulic systems, automotive components or medical industries.
Material: LDPE Colour: Red, Blue, Black, Clear, Yellow Series Code: SR1000, SR1111, SRF0020