Description
Mac-Weld's threaded thermowells are available in a wide variety of process thread sizes and configurations which include, but are not limited to, NPT, NPS, and BSPT. 
Mac-Weld is a pioneer and global leader in the manufacturing of thermowells, always offering the highest quality and precision. Made to order, or standard configurations, all meet or exceed accepted standards.
Mac-Weld's threaded thermowells are designed and manufactured 100% in house, and are made to accept standard and custom made thermometers, thermocouples, bulbs and RTD's.
Configure
Specifications
Specifications
Approvals & Certifications
- Dye Penetration Testing
 - Hydrostatic Internal Testing
 - Material Test Report
 - Radiograph
 
Bore Size
- 0.260" (6.6 mm)
 - 0.385" (9.78 mm)
 
Insertion 'U' Length
- 10" (25.4 cm)
 - 13" (33 cm)
 - 16" (40.6 cm)
 - 22" (56 cm)
 - 34" (86 cm)
 - 4" (10.1 cm)
 - 40" (101.6 cm)
 - 5.5" (14 cm)
 - 7" (17.8 cm)
 
Materials of Construction
- 304 Stainless Steel
 - 304L Stainless Steel
 - 310 Stainless Steel
 - 316 Stainless Steel
 - 316L Stainless Steel
 - 347 Stainless Steel
 - Alloy 20 or Incoloy
 - Aluminum 6061
 - Brass
 - Carbon Steel
 - Carbon Steel A105
 - Chrome-M Moly F-22
 - Chrome-Moly F-11
 - Hastelloy B
 - Hastelloy C-276
 - Incoloy 800
 - Inconel 600
 - Kynar
 - Kynar Coating
 - Monel 400
 - Naval Brass
 - Nickel 200
 - PVC
 - Special
 - Stellite over Spray
 - Teflon
 - Teflon Coating
 - Titanium
 
NACE & NIST
- NACE MR-1090
 
NPT Connection
- 1" NPT Male
 - 1/2" NPT Male
 - 1-1/2" NPT Male
 - 1-1/4" NPT Male
 - 3/4" NPT Male
 
Options
- 125/250 rms Flange Finish
 - 4-12 rms High Polish Stem Finish
 - Full Penetration Weld
 - Stress Relieving
 - Tantalum Sheath (Straight Stem Only)
 - Velocity Calculation (Tapered Wells Only)
 
Plug Material
- 304 Stainless Steel
 - Brass
 
Special Cleaning & Packaging
- Cleaning O₂ or Chlorine
 
Stem Length
- 12" (30.5 cm)
 - 15" (38.1 cm)
 - 18" (45.7 cm)
 - 2.5" (6.35 cm)
 - 24" (61 cm)
 - 36" (91.4 cm)
 - 4" (10.2 cm)
 - 42" (106.7 cm)
 - 6" (15.2 cm)
 - 7.5" (19.1 cm)
 - 9" (22.9 cm)