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Stainless steel threaded sealing head

Material: Stainless steel
Manufacturing:
Size – size: Please contact us

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Stainless steel threaded sealing head

1. Product overview.

  • The stainless steel external thread seal can be used to seal materials such as: plastic, stainless steel, iron, copper – brass, etc. The standard is suitable for all threads.
  • Couplings are made of stainless steel, are stable, sturdy and have a long service life.
  • Threaded line is suitable for connecting pipes, different threaded lines.

2. Size according to BSP and NPT standards.

Nominal 

Diameter 

Kích thước

 

DN

 

Major

Diameter

Inch

Major

Diameter

mm

Major

Diameter

Nut mm

Tapping

Drill Size

mm

TPI

Pitch

mm

G 1/16 ” 6   0.063 7.722 6.837 6.561 28 0.907
G 1/8 ” 9.6   0.125 9.728 8.841 8.565 28 0.907
G 1/4 ” 13 DN 8 0.250 13.157 11.863 11.445 19 1.337
G 3/8 ” 17 DN 10 0.375 16.662 15.389 14.950 19 1.337
G 1/2 ” 21 DN 15 0.500 20.955 19.200 18.633 14 1.814
G 3/4 ” 27 DN 20 0.750 26.441 24.772 24.120 14 1.814
G 1 ” 34 DN 25 1.000 33.249 31.014 30.292 11 2.309
G 1 1/4 ” 42 DN 32 1.250 41.910 39.819 38.953 11 2.309
G 1 1/2 ” 49 DN 40 1.500 47.803 45.712 44.846 11 2.309
G 2 ” 60 DN 50 2.000 59.614 57.722 56.657 11 2.309
G 2 1/2 ” 76 DN 65 2.500 75.184 73.391 72.227 11 2.309
G 3 ” 90 DN 80 3.000 87.884 86.289 84.927 11 2.309
G 3 1/2 ” 101 DN 90            
G 4 ” 114 DN 100 4.000 113.030 111.733 110.73 11 2.309
G 5 ” 140   5.000 138.430 137.332 135.473 11 2.309
G 6 ” 164   6.000 163.830 162.732 160.873 11 2.309

Checklist of thread sizes of BSP standards to millimeters (mm)

Nominalv Diamter

Size Major Diameter mm Tapping Drill Size mm TPI Pitch mm
1/16” NPT 6 7.895 6.00 27 0.941
1/8” NPT 9.6 10.242 8.25 27 0.941
1/4” NPT 13 13.616 10.70 18 1.411
3/8” NPT 17 17.055 14.10 18 1.411
1/2” NPT 21 21.223 17.40 14 1.814
3/4” 27 26.562 22.60 14 1.814
1” NPT 34 33.228 28.50 11.5 2.209

Table to check the thread sizes of the NPT standards to millimeters (mm)

Số Lã  Cam – Hạt bắp Size ống 
Số 4 Lã 6 6 6 ly
Số 5 Lã 8 8 8 ly
Số 6 Lã 10 10 10 ly
Số 7 Lã 10 10 10 ly
Số 8 Lã 12  12 12 ly
Số 10 Lã 16  16 16 ly
Số 12 Lã 19  19 19 ly

Checklist of standard pipe thread sizes to millimeters (mm)

  • Customers please refer to the article here

3. Song Toan Brass brand of Song Toan Fittings

  • Song Toan Brass specializes in manufacturing copper & brass metal components and accessories for companies and for domestic commercial market as well as for export.
  • With many years of experience, Song Toan Brass can make products with complex shapes and high precision.
  • If customer needs to order or process brass or brass related products, please contact us.