We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cylindrical 304 stainless steel thermowell with threaded ends

Value Brand

Value Brand 24C513 Bimetal Thermowell 304SS 1/2 NPSM

SKU CH-W680-396D1

A bimetal thermowell made of 304 stainless steel with a 1/2 NPSM internal thread, 4 in stem length and 2 1/2 in insertion length

  • Product typeEnvironmental & Mechanical
  • 304 stainless steel resists corrosion in harsh environments
  • 1/2 NPSM internal thread fits standard bimetal thermometers
  • 2 1/2 inch insertion length reaches process temperature zone
  • 3/4 inch NPT process connection seals directly into piping
  • 26 inch bore diameter matches common sensor stems

304 Stainless Steel Bimetal Thermowell

The Value Brand 24C513 is a 304 stainless steel bimetal thermowell designed for industrial temperature measurement. It protects bimetal thermometers from process pressure and corrosion while allowing sensor removal without system shutdown. The 304 stainless steel construction resists oxidation in water, steam and many chemical environments.

Replaces Worn Or Undersized Thermowells

This thermowell upgrades installations where the existing well has eroded, cracked or no longer matches the process connection. The jump is worth it when the current well shows pitting, thread damage or when a longer insertion length is required for accurate sensing. The 1/2 NPSM internal thread accepts standard bimetal stems.

2 1/2 Inch Insertion With 4 Inch Stem

The 2 1/2 inch insertion length positions the sensor tip in the process flow for responsive readings. The 4 inch stem length and 4.5 inch socket length provide clearance through vessel walls or insulation. The .26 inch bore diameter fits standard bimetal stems while the .5 inch shank and .75 inch wrench allowance ease installation. Buyers needing longer insertion depths or larger bore diameters for specialised sensors should verify specifications before purchase.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 86% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameZORO SELECT
Product typeEnvironmental & Mechanical

Questions about this item

What size wrench flat is needed to install the 3/4 in NPT process connection?

The thermowell has a .75 in wrench allowance on the hex for tightening the 3/4 in NPT process connection.

What is the correct insertion depth for the 4 in stem length model?

The insertion length is 2 1/2 in, so the probe should seat at that depth inside the 4 in stem; bottoming out the probe is the common error.

When should the 304 stainless steel thermowell be replaced in corrosive service?

Replace the 304 stainless steel well if the .26 in bore shows pitting, the .5 in shank thins, or threads on the 1/2 NPSM internal connection are damaged.

More in Meters, Testers & Measuring Tools

Similar items