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BSP DKR 3/8" plug for external thread

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€2.06

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Manufacturer: HYDRON hydraulika siłowa (go to products)

Shipping time: 24 hours

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BSP DKR 3/8" – Cap for external thread

The BSP DKR 3/8" plug is a precision sealing element designed for safe, permanent or temporary plugging of external threads in power hydraulic systems. It is used on hose ends and male connection ports to protect the installation against loss of working fluid and the ingress of solid contaminants. The swivel nut with a 60° internal cone ensures absolute tightness of the connection under high pressure loads and dynamic fluid pulsations. The product is intended for trouble-free operation in construction machines, agricultural machinery, commercial vehicles, and stationary industrial power units. Made of deformation-resistant carbon steel protected by a galvanic zinc coating, it guarantees high protection against the corrosive influence of the external environment.

Application and technical characteristics

The DKR BSP 3/8" cap is used for mounting on components equipped with a BSP parallel pipe external thread (G 3/8") with a 60° conical seat. The system is sealed transversally through mechanical compression of the conical surfaces (metal-to-metal connection), which eliminates the need for auxiliary materials such as Teflon tapes or anaerobic adhesives. The component exhibits full resistance to pressure surges and material fatigue resulting from continuous pressure changes in the circuit.

Basic properties and technical parameters include:

Sealing standard: Compliant with international standard BS 5200 / ISO 8434-6 (60° cone).
Pressure resistance: Designed for constant working pressure up to 350 bar (35 MPa).
Media compatibility: Mineral and synthetic oils, glycols, water, and water-oil emulsions used in pressure hydraulics.
Surface protection: Passivated zinc coating protecting the steel against moisture and aggressive chemical substances.
Ease of installation: The freely rotating DKR nut allows for quick installation in hard-to-reach places without the need for axial twisting of the entire hose. During service work or system expansion, support can be provided by dedicated hydraulic plugs and caps.

Why choose HYDRON components?

The HYDRON brand provides certified power hydraulic components manufactured in accordance with strict production regimes and the requirements of ISO and DIN standards. Each plug undergoes meticulous control of thread dimensional tolerances and the sealing cone profile, which completely eliminates the risk of leaks. By choosing original HYDRON products, you gain certainty of ideal mounting repeatability, durability of connections, and full safety of operation of pressure systems. We encourage you to familiarize yourself with our range including high-quality hydraulic hoses and reliable threaded connectors.

Technical specification

Parameter	Value
Component type	Plug / Nut cap (DKR)
Thread (G)	BSP 3/8" (G 3/8") – internal (nut)
Sealing type	60° internal cone (BS 5200 / ISO 8434-6)
Alternative designation / Replacement	DKR 3/8" / Z-DKR 3/8" / KOR-BSP-3/8
Material	Carbon structural steel, galvanized
Working pressure (PN)	350 bar / 35 MPa
Operating temperature range	-40°C to +120°C

Frequently Asked Questions (FAQ)

How to correctly mount the DKR BSP 3/8" plug?

The plug should be initially screwed on by hand onto the external thread until resistance is felt from the contact of the conical surfaces. Then, using an open-end wrench, tighten the nut by the appropriate angle or with the correct torque intended for the 3/8" BSP size. Precise tightening of the conical surfaces guarantees complete tightness without material deformation.

Does installing a DKR plug require the use of a thread sealant?

No. DKR-type caps achieve sealing through a 60° cone, which guarantees a metal-to-metal tight connection. Applying Teflon tapes, oakum, or chemical sealing preparations to the thread is a technical error that will prevent proper seating of the cone in the socket and cause a leak.

Is the DKR 3/8" plug reusable?

Yes, the DKR swivel nut plug can be disassembled and reassembled many times, provided that the surface of the sealing cone and the thread turns have not been mechanically damaged or overloaded with too high a tightening torque.