NPT threaddimensions PDF

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Drilled balls are used for pendulum bobs or impact experiments. Other balls are suitable for collision experiments and density/volume experiments.

The Tropico target is located 30 km northwest of Fresnillo city, Zacatecas, Mexico (Figure 2). The Fresnillo mining district is one of the world's most productive epithermal systems and hosts the world's oldest continuously operating mines producing silver, gold, copper, lead, and zinc for approximately five centuries, since 1554.

NPT threadvs BSP

Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any results, performance or achievements expressed or implied by forward-looking statements. Such uncertainties and factors include, among others, whether the planned exploration work at the Company’s projects will proceed as intended; changes in general economic conditions and financial markets; the Company or any joint venture partner not having the financial ability to meet its exploration and development goals; risks associated with the results of exploration and development activities, estimation of mineral resources and the geology, grade and continuity of mineral deposits; unanticipated costs and expenses; and such other risks detailed from time to time in the Company’s quarterly and annual filings with securities regulators and available under the Company’s profile on SEDAR+ at www.sedarplus.ca. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended.

Vancouver, British Columbia – Radius Gold Inc. (TSXV: RDU) (“Radius” or the “Company”) is pleased to announce the commencement of drilling at its Tropico Project located in the Fresnillo mining district in Zacatecas, Mexico. In the past few months, the Company has defined targets and completed all preparations to commence drilling on this compelling epithermal gold-silver system.

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The NPTF thread roots are different than the NPT thread roots. NPTF thread roots are designed to interfere with the crest of the mating thread with the intention of creating a mechanical seal through thread form deformation at assembly. NPTF threads have the same basic shape but with crest and root heights adjusted for an interference fit, eliminating the spiral leakage path. NPTF threads have two classes identified: Class 1 and Class 2. NPT thread roots are designed to allow clearance with the mating thread crests on assembly.

Npt threadsizes

Radius entered into an option agreement with local claim owners to acquire 100% of the property in March 2023 (see news release, March 21, 2023).

President & CEO Bruce Smith commented: “The Radius team is excited to have drilling underway at Tropico. We have been chasing this target for several years and now we can finally drill-test it. Fresnillo is one of the world’s greatest epithermal systems and to have optioned a gold bearing sinter and breccia pipe target within this district that has not yet been drill tested is remarkable.”

NPT threadfull form

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Certain statements contained in this news release constitute forward-looking statements within the meaning of Canadian securities legislation. All statements included herein, other than statements of historical fact, are forward- looking statements and include, without limitation, statements about the results of exploration work and future plans at the Company’s projects. Often, but not always, these forward looking statements can be identified by the use of words such as “estimate”, “estimates”, “estimated”, “potential”, “open”, “future”, “assumed”, “projected”, “used”, “detailed”, “has been”, “gain”, “upgraded”, “offset”, “limited”, “contained”, “reflecting”, “containing”, “remaining”, “to be”, “periodically”, or statements that events, “could” or “should” occur or be achieved and similar expressions, including negative variations.

Npt threadtypes

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The requirements for NPT (National Pipe Thread) are spelled out in ANSI B1.20.1The requirements for NPTF (National Pipe Thread Fuel) are spelled out in ANSI B1.20.3

1/2npt threaddimensions in mm

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National Pipe Taper Fuel (NPTF), also called Dryseal American National Standard Taper Pipe Thread, defined by ASME B1.20.3, is designed to provide a more leak-free seal without the use of PTFE tape (aka "Teflon") or other sealant compound.

Radius has a portfolio of projects located in Mexico and Guatemala which it continues to advance, utilizing partnerships where appropriate in order to retain the Company’s treasury. At the same time, management is seeking out additional investment and project acquisition opportunities across the globe. Radius is a member of the Gold Group of companies, led by Simon Ridgway. You may find more information on Radius Gold at www.radiusgold.com or www.sedarplus.ca.

Sharply angled threads are very critical to joint being tight with no leaks. Thread sealant or tape is typically required to complete the seal. Straight Pipe Threads need a gasket or O-ring to create a seal. While NPT and NPS threads will engage, they do not seal properly with each other.

Both NPT and NPTF have the same threads-per-inch, pitch diameters, and taper-per-inch. The differences come in the major and minor diameters, the root and crest of the threads.

The Tropico target is defined by surface mapping and geochemical sampling outlining a sinter and silicified breccia pipe with a strong gold mercury arsenic antimony geochemical signature (see news release, March 21, 2023). The Tropico gold system is roughly oval shaped, 450m long by 250m wide orientated NNE. A CSAMT survey defined a coherent resistive feature that precisely matched the surface geology, defining a robust pipe shaped target that starts at surface directly below the outcropping silicification and extends to 800m depth at the maximum extent of the survey (Figure 1). The resistive target is approximately 10 times more resistant than adjacent host rocks (see news release, June 7, 2023).

Npt threadchart

Both NPT and NPS have the same thread angle, shape, and pitch (threads per inch). However, NPT threads are tapered and NPS threads are straight (parallel). Both threads have a 60° included angle and have flat peaks and valleys. Tapered Pipe Thread is commonly found on ends of pipe, nipples and fittings (ex: couplings, elbows, tees, etc.).

NPT threadangle

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Runout is the inaccuracy in a rotating mechanism where rotation does not occur around the main axis. Concentricity error can cause the rotor to have runout.

While NPT, NPTF & NPS threads will engage and seem like they fit - they will not seal properly with each other causing leaks.

Forward-looking statements contained herein are based on the assumptions, beliefs, expectations and opinions of management, including but not limited to: that the Company’s stated goals and the planned exploration and development activities at its properties will be achieved; that there will be no material adverse change affecting the Company or its properties; and such other assumptions as set out herein. Forward-looking statements are made as of the date hereof and the Company disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or results or otherwise, except as required by law. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, investors should not place undue reliance on forward-looking statements.

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Bruce Smith, M.Sc. (Geology), a member of the Australian Institute of Geoscientists, is Radius’ Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Mr. Smith has 28 years of mineral exploration experience and has prepared and approved the technical information contained in this news release.

Mar 8, 2023 — NPTF, or National Pipe Tapered Fuel, often known as crystal threads, is intended to provide a seal without the need for sealants. The threads ...

Neither the TSX Venture Exchange nor the Investment Industry Regulatory Organization of Canada accepts responsibility for the adequacy or accuracy of this release.

The district hosts over 150 veins, mantos and chimney deposits including +30 large scale ore producers and it continues to deliver more recent discoveries that include the multi-million ounce silver and gold producer, Juanicipio Project, a joint venture between MAG Silver and Fresnillo Plc.