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Plastic Pipe Caps & Plugs

 (14 product groups)

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Manufactured in a range of different materials such as LDPE and Polyethylene, we stock a variety of caps and plugs designed to protect against debris and contamination threatening to damage vital pipes. Our range features different sizes and colors suited to your application. These strong, durable caps are the perfect solution to fit and protect the lip and face of your pipes. Head to our Quick Buyers Guide to Flange & Pipe Protection for more information and advice on these essential components.

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Pump Stator-Rotor Caps

In stock In production

Protective caps for rotor and stator pump applications. These Pump Stator Caps are made from flexible Polyvinyl Chloride (PVC) that is Black in appearance. They provide maximum protection for stator pumps and rotors on progressive cavity pumps. The flexible PVC material makes installation quick and easy.

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Sucker Rod Caps

In stock In production

Sucker Rod Caps' heavy-duty design protects sucker rod pin ends during storage or transportation. Our cap has a hex head design that promotes easy removal in the field with an open or closed-end wrench.

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Water & Gas Meter Caps

In stock In production

Water and Gas Meter caps are designed to protect threaded connections on gas and water meters. Remains on the unit until installed.

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Sucker Rod Plugs

In stock In production

Sucker Rod Plugs protect sucker rod coupling ends during storage or transportation. The pull feature allows easy removal of the plug in the field.

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Grease Nipple Caps

In stock In production

Grease Nipple Caps are designed to cover and protect the heads of Grease Nipples. Nipple Caps are a low-cost effective solution that protects against ingress of dust and dirt when not engaged with its mating part. They can also be used for other applications, including Glue Guns. The cap is knurled to assure an easy grip, and it is fitted with a retaining washer to help it stay in place.

Our Nipple Cap offer is made from Red Low Density Polyethylene (LDPE). These LDPE Nipple Caps are easy to use and install; they offer an ideal solution for any grease applicator, by covering the end-tip to prevent overflow and leakage from the substances contained within.

  • Ingress and dust prevention
  • Easy fitting
  • Durable and purpose built

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Tapered Caps & Plugs - Standard

In stock In production

Tapered Caps and Plugs made from Red and Blue Low Density Polyethylene (LDPE). A versatile assembly that can be used as both a tapered cap or a tapered plug.

The tapered design allows the part to plug multiple inner diameters or cap multiple outside diameters. The Tapered Cap Plug protects the assembly against damage, dirt, moisture and corrosion during storage and shipping. The series has parts with a heavy duty design, which includes a rugged wall and seal rings for maximum protection.

To assure a proper fit;

  • The tapered plugs outer diameter should be approximately 1% larger than the inner diameter of the part (minimum of 0.020 inch).
  • The tapered caps inner diameter should be approximately 1% smaller than the outside diameter of the part (minimum of 0.020 inch).

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Tapered Caps & Plugs - Wide Flange

In stock In production

The Wide Flange tapered cap & plug design gives this part added protection on bearing surfaces and keeps the plug from being accidently pushed down through the hole in the mating part. Provides protection from damage, dirt, moisture and corrision during storage and transportation.

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Grease Fitting Caps

In stock In production

Grease Fitting caps are made of soft yellow vinyl and guard grease fittings against dirt and moisture. The cap is easily applied and an inner lip adds a secure fit to grease fittings used in mechanical systems to feed lubricants into the bearing.

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Flexible Pipe Caps

In stock In production

Flexible Pipe caps protect threaded or non-threaded pipe ends and are resistant to cracking or splitting under normal use. These caps have outstanding toughness and are puncture-resistant with good flexibility, making assembly or removal easier.

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Ribbed Pipe-End Plugs

In stock In production

Ribbed pipe plugs are available in two styles with flexible ribs of different diameters to fit multiple schedules of NPT and drill pipe. The straight wall on the plug’s O.D. provides a secure friction fit with the mating pipe’s I.D. providing excellent protection against contaminants entering the pipe.

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Open-End Pipe Caps

In stock In production

Pipe & Conduit Open-End Pipe Caps, are a pipe cap that protects external threads on pipe ends, rigid metal conduit ends (RMC) or intermediate metal conduit ends (IMC).

Our pipe thread cap range is made from Polyethylene (PE). These Pipe Thread Protector Caps are sized and designed for positive-gripping power over the threads of the pipe.

Open-end Thread Protectors are available in a choice of colors, including; Black, Blue, Green, Orange, Red and Yellow.

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Butt Weld Plugs

In stock In production

Butt Weld plugs provides maximum protection for butt-weld ends on valves, pumps and heat exchangers. Will not crack or chip and eliminates the need for plywood, masonite and fasteners. Saves on labor assembly cost. The design matches the reverse butt-weld flange angle and completely covers and protects the end during shipping or storage.

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Socket-Weld Fitting Plug

In stock In production

Socket Weld Fitting plugs are designed to provide maximum protection for close fit socket weld applications. The straight wall on the plugs' OD provides a secure and friction fit with the mating parts' ID.

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Pipe Caps

In stock In production

Pipe Caps protect threaded or non-threaded NPT pipe ends. Designed to grip over the outside diameter of the pipe while eliminating foreign materials from entering the pipe during storage or transportation.

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