Adi 1. Definisi Dan Penggunaan Pipa

PENGANTAR PEMIPAAN
PEGANGAN UTAMA
• TEKNOLOGI DAN PERENCANAAN SISTEM PERPIPAAN
Penulis RASWARI
• PIPING HANDBOOK,
Penulis MOHINDER L. NAYYAR
• PENILAIAN
TUGAS/QUIS
UTS
UAS
• KULIAH 16 PERTEMUAN
1. DEFINISI PEMIPAAN
• Pemipaan adalah rangakaian yang meliputi • Pipa digunakan untuk
• pipa,
• flange,
mengalirkan
• fiting, • cairan,
• bolting,
• gaskets, • gas,
• valve, dan
• kelengkapan lainnya. • sluri, atau
• Pipa: dapat berupa tube yang terbuat dari • fine particles.
• metal,
• plastic, • Istilah pipa biasanya lebih
• wood, panjang dibanding tube
• concrete atau
• fiberglass.
2. BAGIAN-BAGIAN PEMIPAAN
BAGIAN-BAGIAN PEMIPAAN
3. STANDAR UKURAN PIPA
• DIAMETER DALAM, iron pipe size (IPS),
IPS 6 artinya pipa dengan diameter dalam 6 inchi
• DIAMETER LUAR, nominal pipe size (NPS)
• KETEBALAN SERAGAM, standard (STD) ATAU standard weight (STD.WT) UNTUK
TEKANAN RENDAH
• PIPA TEKANAN TINGGI
Extra strong (XS)
Extra heavy (XH)
Double extra strong (XXS)
Double extra heavy (XXH)
KETEBALAN, schedule (SCH)

4. REGULASI PIPA
REGULASI SETIAP NEGARA
• AMERIKA: AISI, ASTM, ASME, API, SAE
• EROPA: EUROPEAN STANDARD (EN)
• INDONESIA: SNI
PEMBAGIAN
REGULASI
PENGGUNAAN PIPA
REGULASI PIPA BERTEKANAN, ASME
B31
• ASME B31.1, Power Piping.
ASME B31.2, Fuel Gas Piping.
ASME B31.3, Process Piping.
ASME B31.4, Liquid Transportation Systems for Hydrocarbons, Liquid Petroleum Gas,
Anhydrous Ammonia, and Alcohol.
ASME B31.5, Refrigeration Piping.
ASME B31.8, Gas Transmissionand Distribution Piping Systems.
ASME B31.8S, Managing System Integrity of Gas Pipelines.
ASME B31.9, Building ServicesPiping.
ASME B31.11, SlurryTransportation Piping Systems.
• B31G, Manual for Determining Remaining Strength of Corroded Pipelines.
• ASME B31, Standards of Pressure Piping.
PIHAK-PIHAK YANG MENGIKUTI ASME
B31.3
• American Petroleum Institute (API).
Manufacturers Standardization Society (MSS).
American Welding Society (AWS).
American Society of Mechanical Engineers (ASME).
American Society for Testing and Materials (ASTM).
American Water Works Association ( A W A ) .
American Society for Nondestructive Testing (ASNT).
American Iron and Steel Institute (AISI).
Manufacturers Standardization Society of the Valves and Fittings Industry (MSS).
National Association of Corrosion Engineers (NACE).
National Fire Protection Association (NFPA).
Pipe Fabrication Institute (PFI).
Society of Automotive Engineers (SAE)
5. MACAM BAHAN PIPA
• https://hardhatengineer.com/pipe-material-selection/
PIPA TEMBAGA
• Common wall-thicknesses of copper tubing are "Type K", "Type L" and "Type
M" 
• Type K has the thickest wall section of the three types of pressure rated
tubing and is commonly used for deep underground burial such as under
sidewalks and streets, with a suitable corrosion protection coating or
continuous polyethylene sleeve as required by code.
•  Type L has a thinner pipe wall section, and is used in residential and
commercial water supply and pressure applications.
•  Type M has the thinnest wall section, and is generally suitable for
condensate and other drains, but sometimes illegal for pressure
applications, depending on local codes.
UKURAN PIPA TEMBAGA
• Some of the materials most commonly used for power plant piping are discussed
in the following sections.
• Steel – Steel is the most frequently used material for piping. Forged steel is
extensively used for fittings while cast steel is primarily used for special
applications. Pipe is manufactured in two main categories – seamless and welded.
• Cast Iron – Cast iron has a high resistance to corrosion and to abrasion and is used
for ash handling systems, sewage lines and underground water lines. It is, however,
very brittle and is not suitable for most power plant services. It is made in different
grades such as gray cast iron, malleable cast iron and ductile cast iron.
• Brass and Copper – Non-ferrous material such as copper and copper alloys are
used in power plants in instrumentation and water services where temperature is
not a prime factor.
8 PERTIMBANGAN PEMILIHAN BAHAN
PIPA
1. Bahan yang dialirkan
2. Suhu cairan yang mengalir
3. Tekanan
4. Service Life of the Fluid Handling System
5. Kemudahan Perawatan
6. Interaksi dengan bahan-bahan eksternal
7. Valve dan ukuran Fitting
8. Harga bahan
• https://www.semcor.net/blog/selecting-the-right-pipe-material/
PERTIMBANGAN PEMILIHAN BAHAN
PIPA
• Ultimate Tensile Strength – that is the capacity of a material to withstand when
subjected to tension.
• Yield Strength – that is the load at which plastic deformation or you can say
permanent deformation start.
• Elasticity – is the ability of a material to resume its normal shape after the load is
removed just like rubber.
• % Elongation – Percent elongation is a measure of ductility.
• Hardness – is the ability of a material to resist plastic deformation.
• Toughness – the ability of a material to absorb energy before fracture.
• Creep resistance – ability to resist any kind of distortion when under a load over an
extended period.
• Fatigue Resistance – is the ability of a material to withstand cyclic load for a given
number of cycles before it fails.

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PENGANTAR PEMIPAAN

KETEBALAN, schedule (SCH)

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