Category: PIPING

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Pressure gauge installation requirement!

Thanh ( QC ) Nguyen Le

Regarding to pressure gauge installation, it need to be follow as below: An Isolation valve for maintenance purpose ( can remove without impairing the pressure system’s integrity ) 2. The pressure gauge installed with vertical position is better than horizontal position: + Below pictures is example for wrong installation pressure gauge: 3. To be vented as vendor’s instruction: Document for refer: +  WINTERS INSTRUMENTS +  WIKA Alexander Wiegand SE & Co. KG Continue reading Pressure gauge installation requirement!

API 570 - PI, PIPING2 Comments

FITTING PRESSURE RATING

Amarine Antonio

To be continued from this chapter “Pipe pressure rating“, I’d like to introduce to you about the fitting pressure rating. Note: Flanges, Gaskets, Valves, Weld fittings are designed as CLASS Typically, there’re three type of Fitting CLASS rating: According to ASME B16.5, are made in seven primary Pressure Classes: 150 300 400 600 900 1500 2500 The concept of flange ratings likes clearly. A Class 300 flange can handle more pressure than a Class 150 flange, because a Class 300 flange are constructed with more metal and can withstand more pressure. However, there are a number of factors that can … Continue reading FITTING PRESSURE RATING

OIL & GAS, PIPING3 Comments

ASME B16.5 FLANGE MATERIAL GROUP

Amarine Antonio

ASME B16.5 – List of ASTM Material Specifications MATERIAL GROUP NOMINAL DESIGNATION PRESSURE TEMPERATURE RATING TABLE FORGINGS CASTINGS PLATES 1.1 C-Mn-Si 2-1.1 A350 Gr. LF2 … A516 Gr. 70 C-Mn-Si 2-1.1 … … A537 Cl. 1 C-Mn-Si-V 2-1.1 A350 Gr. LF6 CI. 1 … … 3½ Ni 2-1.1 A350 Gr. LF3 … … 1.2 C-Mn-Si 2-1.2 … A216 Gr. WCC … C-Mn-Si 2-1.2 … A352 Gr. LCC … C-Mn-Si-V 2-1.2 A350 Gr. LF6 Cl. 2 … … 2½Ni 2-1.2 … A352 Gr. LC2 A203 Gr. B 3½Ni 2-1.2 … A352 Gr. LC3 A203 Gr. E 1.3 C-Si 2-1.3 … A352 … Continue reading ASME B16.5 FLANGE MATERIAL GROUP

API 570 - PI, OIL & GAS, PIPING3 Comments

PIPE PRESSURE RATING

Amarine Antonio

Pressure and temperature ratings take into account function and price to help our customers easily select the most suitable pipe, fittings, valves for their work. The pressure and temperature ratings refer to the relation between the fluid temperature and the maximum pressure each piping component can withstand at that temperature. Products are grouped by material, and each is shown with its rating. Note: Pipe is designed as Thickness and Schedule, there’s no any standard pressure rating for particular pipe but the Calculation guideline.  There are two way to select the pipe which can withstand the maximum working pressure of system. Solution … Continue reading PIPE PRESSURE RATING

MACHINERY, PIPING3 Comments

BOLT/NUT GRADE & MATERIAL SELECTION (Easy understand and select correctly the grade)

Amarine Antonio

This short guide is intended to give a very basic introduction to ISO metric nuts and bolts. It is intended for those working in plant and machinery maintenance to give enough information to ensure that correct replacement parts are identified … Continue reading BOLT/NUT GRADE & MATERIAL SELECTION (Easy understand and select correctly the grade)