Hydraulics & Fluid Protection

Anti-vibration BSP threaded plugs are intended to decrease vibrations and noise in mechanical systems. The serrated shape prevents vibration-induced loosening, while maintaining a solid hold on the pipes collar.

• Designed to be a reliable and efficient solution for reducing and dampening vibrations.

• It is used with BSP hydraulic fittings.

• Used in industries such as machinery, electronics, and automotive.

Material: LDPE Colour: Clear Series Code: SR6112

Banjo Bolt Caps are protective caps with a retaining washer to hold and protect banjo bolts from dirt and damage. They are easy to grasp, even while wearing gloves. Ideal for assembly storage and transportation.

• A Protection Cap and Retaining Washer in a single unit. These Banjo Bolt Caps hold everything together during assembly, storage and shipping.

• Protects against damage and dirt ingress.

• Easy to grip, even when wearing gloves.

Material: LDPE Colour: Black Series Code: SR1083

Banjo Union Caps prevent against dirt, damage and contamination, while in storage and transit. Quick and easy to install. Can endure temperatures ranging from -30C up to +80C.

• A range of protective caps designed for Banjo Union connections. They provide external assembly cover during storage and transportation to protect the connection from the ingress of dirt.

• Flexible PVC option offers snug fitting, and fast fitting and removal. HDPE options offers secure fit with a simple click.

• Fits hydraulic Banjo Unions to DIN 7642 B/E.

Material: HDPE, PVC Colour: Yellow, Red Series Code: SR1071, SRF0005

Banjo Union Plugs protect banjo unions against damage and fluid residue. They are sturdy and suitable for hydraulic and fluid systems. Can be supplied with or without a cover tab. Compatible with DIN 7642 B/E banjo unions.

• Designed to protect from damage, wear and tear, and dirt or moisture ingress.

• Provides a secure fit on banjo unions DIN 7642 B/E, forming a reliable sealing surface to prevent leaks.

• It can be used in applications in automotive or industrial machinery.

Material: LDPE Colour: Natural Series Code: SR1016

Breather Caps are used to protect equipment against moisture and particle contamination. Allows for airflow in applications, preventing a system from malfunctioning due to pressure changes.

• Facilitates a high rate of air flow.

• Protects equipment by controlling moisture and particle contamination.

• Ideal for applications exposed to pressure and demand from fluid levels.

Material: Aluminium Colour: Black Series Code: SRV0019, SRV0018

Centre Pull Tab Hose Plugs are designed to plug and seal hose ends. They have ribs that ensure a tight fit when plugging hydraulic lines without straining them. It features a high tensile strength, toughness, and flexibility.

The internal, centrally located pull tab enables simple plug insertion and removal, making it a hassle-free alternative. Furthermore, the tapered form allows for the plugging of numerous interior diameters. The plugs snug fit and secure seal effectively prevents dust, dirt, and other impurities from entering the hose. This helps protect internal components, guaranteeing optimal performance.

Commonly used for construction, automotive, and agricultural applications.

• Features a high tensile strength, toughness, and flexibility.

• Features ribs that ensure a tight fit when plugging hydraulic lines without straining them.

• The tapered form allows for the plugging of numerous interior diameters.

Material: EVA Colour: Yellow Series Code: SR6111

DKO Side Release Plugs protect DKO-compression fittings during transit, storage and processing by preventing damage and contamination. The flexible end fits securely into the DKO swivel nut. A side pull tab allows for easy removal.

• Protects DKO-compression fittings during transit, storage, and processing from damage and contaminants.

• The flexible end fits snugly into the DKO swivel nut, and the side pull tab allows easy removal.

• Commonly used to meet the needs of industries such as automotive, manufacturing, and machinery.

Material: LDPE Colour: Red, Yellow Series Code: SR1121

Fluid Absorption Plugs absorb excess fluids, helping to prevent leaks and contamination. They work with water, oil, fuel and other chemicals. They leave no residue behind, unlike traditional plugs. Suitable for metric and imperial threads, and simple boreholes.

• Absorbs a variety of substances with chemical resistance.

• Safer, simpler, and cleaner than traditional plugs since they leave no residue in the thread or hole.

• Its unique design enables rapid and easy installation and removal.

Material: PP, PE;PP Colour: Yellow Series Code: SR1004

Prismatic Fluid Level Indicator Caps are resistant to solvents, oils, greases, and other chemical agents. The prismatic windows allow the viewing of liquid levels in various applications and are resistant to oils and solvents.

• Offers genuine glass of high stability.

• Scratch-proof.

• Seal housed in a groove and therefore cannot be lost.

• Groove design prevents seal from extrusion when the sight glass is tightened.

Material: Aluminium Series Code: SR6580

Grease Nipple Caps are designed to protect grease nipples from dust, moisture, dirt, and other contaminants. Our range offers a selection of caps with a tab, or without a tab, to make it easier to remove. The design of the cap provides a choice of knurled or non-knurled heads for easy gripping. These grease nipple caps can also be used as a visual indicator of whether the fitting has been lubricated.

These are an economical solution that is quick and easy to install and remove.

Used in fluid transmission applications that have grease nipples.

• Designed to protect from dust, moisture, dirt, and other contaminants.

• Quick and easy to install and remove.

• Suitable for use in machinery, equipment, vehicles or any application that uses grease nipples.

Material: TPE, LDPE Colour: Black, Red, Yellow Series Code: SRPITPE, SRPI, SR1019

Hose Washer Caps are applied to the ends of hoses and tubes to keep them from slipping over the fittings. Protects against water, dust, grime and pollutants.

• It prevents water and dirt leaks.

• It is easy to install and remove.

• Used in construction applications, gardening and automotive industry.

Material: TPE, LDPE Colour: Black, Yellow Series Code: SR5758

Our range of O-Ring Face Seal Caps are designed to protect O-Ring face seal connectors that are used on hydraulic connections.

The cap design features a longer overall length for added protection from the ingress of dirt and other contaminants. They also include a moulded retaining ring at the bottom that snaps under the connector to keep it securely in place during transit and processing.

Our range is suitable for both UNF and JIC thread sizes.

• Designed for the protection of O-Ring face seal connectors used on hydraulic connections.

• Features a longer overall length for added protection.

• Suitable for UNF and JIC threads.

Material: LDPE Colour: Black, Blue Series Code: SRCFST, SR1078

Quick Release Caps are designed for capping ISO A and ISO B series. They protect hoses, fittings and tubes from contamination, dirt, moisture and corrosion. They can withstand temperatures ranging from -40C up to 135C.

• A Quick Release Cap used in hydraulic applications. The female fitting is suitable to protect quick release couplings ISO 7241-1 Series A and B.

• Designed to remain attached to the hose.

• Protection from the ingress of dirt and moisture, and resistance to corrosion.

Material: TPE Colour: Blue, Green, Yellow, Red Series Code: SR1181

Quick Release Plugs provide secure sealing for hoses. They remain attached during use. Designed as male fittings for ISO A and ISO B series. Can withstand temperatures from -40C up to 135C.

• Male fittings for the ISO A and ISO B series.

• It provides great protection against dirt, moisture, and corrosion and prevent leaks.

• It can withstand temperatures from -40C to 135C.

Material: TPE Colour: Blue, Green, Yellow, Red Series Code: SR1182

Quick-fit Connector Plugs are created to conform to SAE J2044 - 12 connectors for fuel systems. The plug offers protection from ingress of contaminants or potential leaks of fluid.

The ring tab is designed to cover the wall of the connector when fitted, and to be pulled out for easy and fast removal.

• Ring tab is designed to cover the wall of the connector when fitted.

• Helps quickly and easily connect wires, without needing special tools or equipment.

• Used in industrial, HVAC, and plumbing applications.

Material: LDPE Colour: Yellow Series Code: SRF0009

Side Release Plugs provide secure and convenient sealing for various applications. The side release mechanism allows for quick insertion and removal without the need for tools, ensuring a tight seal.

• The side release mechanism enables easy insertion and removal, eliminating the need for additional tools or excessive force.

• The versatile design of these plugs makes them suitable for various applications across different industries.

Material: LDPE Colour: Natural Series Code: SR1120

Slotted Plugs are designed with a double sealing ring on the underside of the flange that provides a secure and reliable seal. The design includes five complete threads for a secure fit. Offers protection from dirt, dust, debris, liquid residue and corrision. Head designed not to trap liquid when the plug is secured in place.

These Sealing Plugs are easy to install and remove by hand. The hex head design allows the plug to be applied or removed with a screwdriver, spanner, Allen key or socket. The range covers an extensive offering of dimensions suitable for Metric, BSP, and UNF threads.

Used in various applications, including hydraulic, pneumatic, and general engineering industries.

• Designed with a double sealing ring for a secure and reliable seal.Designed with a double sealing ring for a secure and reliable seal.

• Protects from contaminants and ingress of moisture.

• Easy to install and remove by hand.

• SRF1007, SRF1005, SRF1117

Material: LDPE, PA, PE Colour: Yellow, Blue Series Code: SR1005, SR1007, SR1117

Threaded O-ring Plugs for BSP/Gas Threads include a compressed flange lip and an O-ring to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a spanner, screwdriver, or by hand. BSP Gas threads are available. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

• Material: HDPE
• Colour: Yellow
• Material Flammability Standard: UL94 V-2

Threaded Plugs with Gaskets are intended to establish a tight and secure seal that prevents dust, dirt, or other undesired components from entering. The inclusion of a gasket (washer) seal improves sealing capabilities, adding an extra layer of protection against leaks and impurities.

Threaded Plugs are easy to install and remove from the application using a straight screwdriver, hex key or wrench. They can withstand temperatures from -30C up to +90C.

Frequently used in hydraulic and pneumatic systems, automotive, and general engineering sectors.

• Provides a tight seal, preventing contaminants from entering.

• Easy to install and remove using a straight screwdriver, hex key or wrench.

• Can withstand temperatures from -30C up to +90C.

Material: LDPE, PA6, PA;TPE Colour: Red, Yellow, White Series Code: SRTFUGP, SRTFTG, SRF0012

Threaded Protection Plugs designed for use on BSP and Gas Threads. Safeguards threads and fittings from damage and contaminants during production, storage and shipment. The knurled head design allows easy hand installation and removal on pipes and tubes, by simply twisting.

• Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.

• The protection plug protects from contaminants like dirt, dust, debris, and moisture out of the hole.

• Used in various applications, including hydraulic, pneumatic and general engineering industries.

Material: LDPE, PA Colour: Red, Natural Series Code: SR1002, SR5757, SR1054

Wide Flange Threaded Protection Plugs shield threads and fittings from damage and contaminants during production, storage and shipment. The nitrile gasket ensures a leak-tight seal against the mating surface. The wide flange prevents paint flakes from entering the hole upon removal. Withstands intermittent temperatures from -40C up to +100C.

• Its wide flange design keeps any paint flakes from the hole when removed.

• Their nitrile gasket seals the plug to the mating surface for leak-tightness.

• It is recommended for intermittent temperatures from -40C to +100C.

Material: PA Colour: Yellow Series Code: SR5761

Quick Fit Threaded Protection Plugs protect threads and fittings from damage during production, storage and shipment, ensuring they remain in good condition and ready for use when needed. They keep contaminants like dirt, dust, debris and moisture out of the hole.

Conceals the initial thread of standard female threads. They are suitable for various applications including those in the hydraulic and general engineering industries. They cover a wide range of thread sizes that meet Metric, Gas and UNF standards.

This series is manufactured from Post Consumer Recycled material, which is designed to support Essentra’s ESG ambitions and those of our customers. Material: LDPE - PCR Colour: Green Series Code: SRTFUPCR

Threaded O-ring Plugs for UNF Threads include a compressed flange lip and an O-ring (optional) to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a hex wrench, screwdriver, or hand. Often used on flat-faced hydraulic fittings, it is recommended when strength and resistance are desired as it can withstand temperatures that range from -40F to 230F | -40C to 110C. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

• Material: PP, HDPE
• Colour: Yellow, Black, Red
• Material Flammability Standard: UL94 V-0