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Tapered NPT plug 1/2"

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€1.82

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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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Tapered NPT plug 1/2"

The professional 1/2" NPT tapered plug is designed for permanent and hermetic sealing of ports and holes in advanced power hydraulics, pneumatics, and industrial systems. This precision component is ideal for industrial machine bodies, valve blocks, manifolds, and cylinders operating in demanding conditions. Thanks to the use of an external tapered thread made according to the American ANSI/ASME B1.20.1 standard, the element guarantees reliable protection against high-pressure working fluid leaks. The manufacturing standard based on rigorous technical norms ensures full assembly repeatability and long service life for the entire hydraulic joint.

Application and technical characteristics

The 1/2" NPT tapered plug is dedicated to stationary and mobile hydraulic systems where the working medium consists of mineral oils, synthetic oils, fuels, and gases. The design is characterized by high resistance to nominal pressures reaching 350 or 400 bar depending on the body version. The connection is sealed directly on the tapered thread with a 60-degree profile angle and a 1:16 taper, providing self-locking tightness during tightening. The component body is manufactured from precision-machined free-cutting steel protected with an anti-corrosive, galvanic zinc coating, which guarantees high resistance to mechanical damage and corrosion. To achieve full hermeticity in high-pressure systems, the use of Teflon tape or dedicated anaerobic sealants from the category power hydraulics adhesives, instant adhesives.

Why choose our components?

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

Dimension table and technical parameters

Thread size (E)	Pitch (threads / inch)	External thread diameter (mm)	Profile 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 work in a 1/2" NPT tapered plug?

The sealing is based on direct contact between the threads of the tapered thread with a 60-degree angle and a 1:16 taper. During screwing, wedging and self-locking of surfaces occur, which blocks the flow of the pressurized medium.

2. Are additional sealing agents required for the installation of the 1/2" NPT 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 1/2" NPT plug is characterized by resistance to a nominal pressure PN of up to 350 or 400 bar, depending on the exact material version of the body.