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Hydraulic Application Caps & Plugs

 (44 product groups)

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What are hydraulic application caps and plugs used for?
Hydraulic application caps and plugs provide the critical role of protecting hydraulic systems from dirt, moisture, corrosion and damage during manufacturing, transit, shipping and storage. All of which can be harmful factors contributing to hydraulic system failure. Hydraulic caps and hydraulic hose plugs should be used through various processes such as manufacturing – particularly in powder coating and painting, during assembly and packaging and also used during machine shutdown when undertaking routine maintenance or repair. Their job is to prevent all types of contaminant from entering hydraulic systems through ports and fittings.

Thread types in our range include:
UNF
BSP
Metric
JIC threads

For more information about hydraulic line caps and plugs, hydraulic hose caps, fittings and other important products, visit our ‘How to choose caps and plugs guide.

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Anti-Vibration Plugs - LDPE

In stock In production

Anti-Vibration Plugs are ideal for BSP hydraulic fittings. The notched thread design allows our anti-vibration plugs to prevent parts coming loose during movement. These hydraulic plugs are manufactured in a transparent colour allowing easy inspection of fitted O-rings

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Hose Washer Caps

In stock In production

Available in LDPE or TPR, these Hose Washer Caps are applied on hose and tube ends in order to prevent them from sliding over the fittings. Our range includes Yellow and Black colour options and offers a range of sizes to suit your application needs.

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Round Vinyl End Caps

In stock In production

Vinyl End Caps, commonly known as Flexicaps or PVC End Caps. A round cap that protects the outside diameter of threaded or non-threaded tubes, rods, pipes or paper tubes. The vinyl material can stretch on to larger dimensions for a tight fit without tearing, splitting or shredding.

These round vinyl end caps include a red flexible Polyvinyl Chloride (PVC) 60 Shore version, which is made from softer and more flexible material that allows for easy fitting. The bright red colour offers high visibility, thus reducing health and safety risks. Also included is a black PVC 80 Shore version that is more rigid than the red option. Also available is a glossy, dip-moulded round end tip that has a smooth finish. Durable round plastic end caps for round tubing are ideal product presentation and protection.

These vinyl caps provide a high-gloss, attractive finish making them ideal for use as decorative end caps. The flexibility and durability allows suitable fit for multiple applications. They can be used as a mask for coating, plating and paint applications, where the maximum temperature is not higher than 350F.

  • Simple push-fit design.

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Tapered Caps & Plugs - Standard

In stock In production

Tapered Plastic Plug Caps have two functions; plug and cap.

The Tapered Plug is used to plug the end of tubing, pipes, and bars. Tapered Pipe Plugs are desiged to fit snugly on to the end of a tube to keep liquid, dirt and other ingres out of the cavity - or indeed to help retain the contents that is within. Alternatively, Cap Plugs can be used as Tapered Caps. The Tapered Cap fits neatly over the outside diameter at the end of a tube, pipe or bar. This prevents dirt, dust, moisture, liquids and other contaniments from entering the cavity opening during manufacturing, masking, storage, and transportation.

Our Tapered Cap Plug range is made from Low Density Polyethylene (LDPE). This durable Plastic Plug Caps material protects the application from damage, as well as offering corrosion resistance.The Tapered Plug Caps range is suitable for a wide range of hole diameters, so you're sure to find a solution to suit your project requirments.

These Plug Caps are available in a choice of colour options, including; Black, Blue, Clear (Transparent), Red and Yellow.

  • Quick and Easy to install with a simply push-fit design.

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Gas Cylinder Valve Plugs

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Our Gas Cylinder Valve Protectors, developed in conjunction with major European gas companies, protect industrial gas valves from ingress of dust and dirt. The yellow LDPE Gas Cylinder Valve Protectors are tamper evident, and feature a unique vent flap which allows safe release of gas following accidental opening of valve

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Tapered Caps & Plugs - Wide Flange

In stock In production

The wide flange of these LDPE Tapered Caps & Plugs provides greater protection and easy removal. Designed for use as both a cap and a plug, they provide excellent protection from damage, dirt, moisture and corrosion during storage and transportation. Our range is available in Blue and Red.

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LPG Plugs

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Developed with the LPG industry, LPG Plugs help prevent dangerous gas leaks. Developed with the LPG Industry, the plugs are designed to meet LP Gas Association Code of Practice 15: Part 2. Profiles are strapped to help prevent loss and for ease of replacement and marked with direction of fitting / removal.

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Tapered Caps & Plugs - Heavy Duty

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These LDPE Heavy Duty Tapered Caps & Plugs include a rugged wall and seal rings for maximum protection. The tapered profile allows the versatile part to plug multiple internal diameters or cap various external diameters. Our range is available in either Red or White.

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Banjo Bolt Caps

In stock In production

Featuring a Protection Cap and Retaining Washer in one unit; Banjo Bolt Caps hold everything together during assembly, storage and shipment, while protecting against damage and dirt ingress. They are easy to grip, even when wearing gloves. Our Banjo Bolt Caps are offered in Black Low-Density Polyethylene and a range of sizes to suit your application.

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Slottex Plugs

In stock In production

Slottex Plugs are screw on protection plugs that can be applied or removed with screwdriver, spanner or socket. They can be tightened manually or with power tool. The range cover a large offering of dimensions suitable for Metric threads, BSP threads and UNF threads.

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Banjo Union Caps

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Banjo union caps provide external protection of Banjo connectors against dirt ingress during transportation and storage. The range is available in Flexible PVC fitted with a finger tab for quick removal or HDPE for a snap fit into the Banjo.

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Snap Fit Plugs

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Snap Fit Plugs have a single turn providing tight fit once pushed into position. The plug is design with a centre tab to allow a strong grip for tightening and easy removal. The range is suitable for Metric, BSP and UNF threads.

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Threaded O-ring Plugs - BSP/Gas Threads

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Threaded O-ring Plugs - BSP/Gas Threads can be applied or removed by hand, hex wrench or screwdriver. The O-ring provides a water tight seal for superior leakage protection. Customers also purchased Ring Seals - O-Ring.

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Threaded O-ring Plugs - Metric Threads

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Threaded O-Ring Plugs are equipped with a compressing flange lip and O-ring for a watertight seal and superior leakage protection for hydraulic threads. Can be applied and removed by hand, wrench, socket, or screwdriver. Available in Metric, UNF and BSP Gas threads.

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Threaded O-ring Plugs - UNF Threads

In stock In production

Threaded O-Ring Plugs are equipped with a compressing flange lip and O-ring for a watertight seal and superior leakage protection for hydraulic UNF threads. Can be applied and removed by hand, wrench, socket, or screwdriver. Customers also purchased Ring Seal Kits - O-Ring.

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Standard Round End Caps

In stock In production

Standard round end caps, also referred to as protection caps are a versatile option to cover holes or threads during transportation, paint process or on a finished product. These LDPE caps can be used on tubes, pipes or rods. Available in either red or natural, there are three shapes, ranging from short caps to cover holes to longer caps which will cover long threads. These caps are easily applied by pushing onto application and can be re-used upon application removal. Customers that purchase our Standard Round End Caps regularly buy our Protective Netting.

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Threaded Protection Caps - BSP/Gas Threads

In stock In production

These Polyethylene Threaded Protection Caps are used throughout the automotive, fluid power and engineering industries. They protect threaded components from dust, moisture and damage. They are suitable for BSP/Gas threads. Our range is available in Yellow or Red and a wide choice of sizes, to suit your application needs.

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Threaded Protection Caps - Metric Threads

In stock In production

These Polyethylene Threaded Protection Caps are used throughout the automotive, fluid power and engineering industries. They protect threaded components from dust, moisture and damage. They are suitable for Metric threads. Our range is available in Yellow or Red and a wide choice of sizes, to suit your application needs.

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Tube End Caps

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Tube End Caps offer ideal protection for threaded or non-threaded tubing, pipes and rods. Standard, short and long caps are available. The short versions are for general purpose closure and the long versions have an extra depth and feathered edge that ensure a tight fit. The design of these longer caps helps to prevent accidental displacement. Tube End Caps serve the same purpose as Heat Shrink End Caps but do not shrink when heated during the application process. They are UV and weather resistant, making them ideal outdoor applications.

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Threaded Protection Caps - UNF/JIC Threads

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These Polyethylene Threaded Protection Caps are used throughout the automotive, fluid power and engineering industries. They protect threaded components from dust, moisture and damage. They is suitable for UNF/JIC threads. Our range is available in Yellow or Red and a wide choice of sizes, to suit your application needs. You may also be interested in our range of Metric Threaded Caps.

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Threaded Protection Plugs - BSP/Gas Threads

In stock In production

Threaded Protection Plugs - BSP/Gas Threads are widely used in hydraulic, pneumatic and general engineering industries. They come with a knurled head to easily grip the head and they offer an excellent protection from dirt, moisture and corrosion. They are available in UNF, NPT, Metric and BSP/Gas threads.

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Threaded Protection Plugs - Metric Threads

In stock In production

Threaded Protection Plugs - Metric Threads are widely used in hydraulic, pneumatic and general engineering industries. They come with a knurled head to easily grip the head and they offer an excellent protection from dirt, moisture and corrosion. They are available in UNF, NPT, Metric and BSP/Gas threads.

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Threaded Protection Plugs - NPT Threads

In stock In production

Threaded Protection Plugs - NPT Threads are widely used in hydraulic, pneumatic and general engineering industries. They come with a knurled head to easily grip the head and they offer an excellent protection from dirt, moisture and corrosion. They are available in UNF, NPT, Metric and BSP/Gas threads.

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Threaded Protection Plugs - Quick Fit

In stock In production

Threaded Protection Plugs - Quick Fit are widely used in hydraulic, pneumatic and general engineering industries. They come with a knurled head to easily grip the head and the short thread allows a quick fit on the part. Suitable for Metric, BSP and UNF thread sizes.

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Threaded Protection Plugs - UNF Threads

In stock In production

Threaded Protection Plugs - UNF Threads are widely used in hydraulic, pneumatic and general engineering industries. They come with a knurled head to easily grip the head and they offer an excellent protection from dirt, moisture and corrosion. They are suitable for UNF threads.

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