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NPT 3/4" Tapered Plug

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€2.92

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pcs

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Manufacturer: HYDRON hydraulika siłowa (go to products)

Shipping time: 24 hours

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from €3.62 - GLS Courier (Poland)

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NPT 3/4" Tapered Plug

The professional NPT 3/4" tapered plug is designed for durable and airtight sealing of sockets and holes in advanced power hydraulics, pneumatics, and industrial installations. This precision component is ideal for industrial machine bodies, valve blocks, manifolds, and actuators operating under harsh conditions. By using an external tapered thread made to the American ANSI/ASME B1.20.1 standard, the element guarantees reliable protection against leakage of working fluid under high pressure. The manufacturing standard based on rigorous technical norms ensures full assembly repeatability and a long service life for the entire hydraulic joint.

Application and technical characteristics

The NPT 3/4" tapered plug is dedicated to working in stationary and mobile hydraulic systems where mineral oils, synthetic oils, fuels, and gases are the working medium. The design is characterized by high resistance to nominal pressures reaching 350 or 400 bar depending on the body version. The connection seal is formed directly on the tapered thread with a 60-degree thread angle and a 1:16 taper, providing self-locking tightness during tightening. The component body is produced from precision-machined free-cutting steel protected by an anti-corrosion, galvanic zinc coating, guaranteeing high resistance to mechanical damage and corrosion. To achieve full hermeticity in high-pressure installations, the use of Teflon tape or dedicated anaerobic sealants from the category is recommended power hydraulic adhesives, instant adhesives.

Why choose our components? Technical advantage based on facts and standards

By choosing our components, you invest in elements that meet strict industrial standards, which translates into the failure-free operation of high-pressure installations. Precise thread execution according to the ANSI/ASME B1.20.1 standard ensures a perfect fit in machine sockets, eliminating the risk of internal thread damage in expensive bodies. The use of free-cutting steel with a zinc coating protects the element against oxidation in the external environment. Additionally, to comprehensively protect the system against contaminants and medium loss, it is worth checking our threaded plugs and caps, selecting appropriate thread reductions - differential bushings or purchasing seamless precision tubes, which guarantees the full reliability of any industrial installation.

Technical specification table

Thread size (E)	Pitch (threads / inch)	Ext. thread diameter (mm)	Thread angle
1/8" NPT	27	9.7 – 9.9	60°
1/4" NPT	18	13.6 – 13.9	60°
3/8" NPT	18	16.3 – 16.6	60°
1/2" NPT	14	20.5 – 20.9	60°
3/4" NPT	14	26.1 – 26.4	60°
1" NPT	11.5	33.0 – 33.4	60°
1.1/4" NPT	11.5	41.5 – 41.9	60°
1.1/2" NPT	11.5	47.4 – 47.8	60°
2" NPT	11.5	59.2 – 59.6	60°

Frequently Asked Questions (FAQ)

1. How does the seal in the NPT 3/4" tapered plug work?

The seal relies on direct contact of the 60-degree tapered thread coils and a 1:16 taper. During screwing, wedging and self-locking of the surfaces occur, blocking the flow of the pressurized medium.

2. Are additional sealing agents required for installing the NPT 3/4" plug?

Yes, due to the specification of tapered threads in high-pressure installations, the use of Teflon tape or a professional anaerobic sealant is recommended to guarantee full hermeticity.

3. What is the maximum working pressure for this component?

The NPT 3/4" plug is characterized by resistance to a nominal pressure PN reaching up to 350 or 400 bar, depending on the exact material version of the body.