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MSS SP-70-2011 PDF Preview
MSS SP-70-2011

Gray Iron Gate Valves, Flanged and Threaded Ends

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MSS SP-71-2018 PDF Preview
MSS SP-71-2018

Gray Iron Swing Check Valves, Flanged and Threaded Ends

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MSS SP-72-2010 PDF Preview
MSS SP-72-2010

Ball Valves with Flanged or Butt-Welding Ends for General Service

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MSS SP-75-2025 PDF Preview
MSS SP-75-2025

High-Strength, Wrought, Butt-Welding Fittings

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MSS SP-78-2011 PDF Preview
MSS SP-78-2011

Gray Iron Plug Valves, Flanged and Threaded Ends

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MSS SP-79-2024 PDF Preview
MSS SP-79-2024

Socket-Welding Reducer Inserts

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MSS SP-80-2019 PDF Preview
MSS SP-80-2019

Bronze Gate, Globe, Angle, and Check Valves

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MSS SP-81-2021 PDF Preview
MSS SP-81-2021

Stainless-Steel or Stainless-Steel-Lined, Bonnetless, Knife Gate Valves with Flanged Ends

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MSS SP-83-2025 PDF Preview
MSS SP-83-2025

Class 3000 and 6000 Pipe Unions, Socket Welding and Threaded (Carbon Steel, Alloy Steel, Stainless Steels, and Nickel Alloys)

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MSS SP-85-2011 PDF Preview
MSS SP-85-2011

Gray Iron Globe & Angle Valves, Flanged and Threaded Ends

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MSS SP-86-2021 PDF Preview
MSS SP-86-2021

Recommended Rules and Guidelines for SI (Metric) Data in MSS Standards

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MSS SP-87-1991 PDF Preview
MSS SP-87-1991

Factory-Made Butt-Welding Fittings for Class I Nuclear Piping Applications

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MSS SP-88-2021 PDF Preview
MSS SP-88-2021

Diaphragm Valves

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MSS SP-9-2024 PDF Preview
MSS SP-9-2024

Spot Facing for Bronze, Iron, and Steel Flanges

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MSS SP-91-2025 PDF Preview
MSS SP-91-2025

Guidelines for Manual Operation of Valves

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MSS SP-92-2021 PDF Preview
MSS SP-92-2021

Valve User Guide

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MSS SP-93-2024 PDF Preview
MSS SP-93-2024

Quality Standard for Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components –Liquid Penetrant Examination Method

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MSS SP-94-2020 PDF Preview
MSS SP-94-2020

Quality Standard for Ferritic and Martensitic Steel Castings and Forgings for Valves, Flanges, Fittings, and Other Piping Components–Ultrasonic Examination Method

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MSS SP-95-2024 PDF Preview
MSS SP-95-2024

Swage(d) Nipples and Bull Plugs

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MSS SP-96-2017 PDF Preview
MSS SP-96-2017

Terminology for Valves, Fittings, and Their Related Components

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MSS SP-97-2025 PDF Preview
MSS SP-97-2025

Integrally Reinforced Forged Branch Outlet Fittings: Socket Welding, Threaded, and Buttwelding Ends

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MSS SP-98-2020 PDF Preview
MSS SP-98-2020

Protective Coatings for the Interior of Valves, Hydrants, and Fittings

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MSS SP-99-2023 PDF Preview
MSS SP-99-2023

Instrument Valves

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