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螺纹接头

发布时间:2016/10/08 HANSUN 螺纹接头 浏览次数:4109

详细参数

Features

All instrument thread fittings are designed in accordance with ASME B31.3 for instrument and process.
Male thread are protected with cap.
Burr-free internal and outside surfaces.
NPT threads are based on requirement of ASME B1.20.1

Material Standards & Temperature Ratings

Material Bar Stock Forgings Temperature
SS316

ASTM A479

ASTM A276

ASTM A182

-325℉ -1200℉

(-198℃ -648℃)

Brass

ASTM B16

ASTM B453

ASTM B283

-325℉ -400℉

(-198℃ -204℃)

Carbon steel

ASTM A108

JIS G4051

JIS G4051

-20℉?-350℉

(-29℃ -176℃)

Pressure Ratings

Pressure ratings listed are for temperature up to 37.8C (100°F).
Based on Pressure Pipe Code ASME B31.3 pressure rating is calculated with an allowable stress value of 20,000psi
SS316, 10,000psi, brass 20,000psi, carbon Steel.
To determine the working pressure in accordance with Power Pipe Code ASME B31.1, multiply psig by 0.94.
Brass pressure ratings remain the same.
Due to larger outer diameter of female threads rating of female are lower than male threads.
To determine kPa rating, multiply psig by 6.89.
Reducing Hex Bushing (P-SHB) pressure rating is not covered in this table. See the pressure rating in the dimensional data chart.

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