Meat Thermometer-Grill Thermometer-Bimetal Thermometer
Principle
The bimetallic thermometer consists of a bimetallic strip. A
bimetallic strip is made of two thin strips of metals which have
different coeffcients of expansion. The two metal strips are joined
together by brazing, welding or reveting so that the relative
motion between them is arrested.
The bimetallic strip is in the form of a cantilever beam. An
increase in temperature will result in the deflection of the free
end of the strip as shown i diagram. This deflection is linear and
can be related to temperature changes.
The radius of the curvature of the bimetallic strip which was
initially flat is determined using the following relationship.
R= t{3(1+m)² + (1+mn)[m²+1/mn]}/6(ah-al)(T2-T1)(1+m) ²
Specifications of bimetal thermometer:
Dial size: 2.5"/63mm, 3"/80mm, 4"/100mm, 5"/125mm, 6"/150mm
Case and bezel: 304stainless steel, bayonet bezel or roll ring sealed
Window: Polycarbonate or glass
Pointer and face: Aluminum
Sensing bulb and connection: 304stainless steel
Connection way: Lower mount, center back mount and every angle mount
Bulb size: 6. 3mm diameter, could make according to customer's request
Range: -40-650
Industrial bimetal thermometer adopts a multilayer metal sheet as
temperature-sensing element to control the pointer. The multilayer
metal sheet is formed by two (or more) metal sheets that are
laminated together. The element works on the principle that two
different metal expand in different amounts when temperature
changes. For example, there are two winded and ring-shaped metal
sheets. One metal sheet expands with heat and drives the pointer to
rotate, and then the instrument shows the temperature number
corresponding to thermoelectric potential.
Bimetal thermometer is widely used in petroleum and chemical
industry and other fields. And it is available in corrosive medium
and conditions.
OUR MAIN PRODUCT
Liquid Filled Pressure Gauge
Glycerin Filled Pressure Gauge
Stainless Steel Pressure Gauge
Standard Pressure Gauge
Dry Pressure Gauge
Low Pressure Capsule Gauge
Bimetallic Thermometer
Thermo Manometer
Tyre Pressure Gauge
Welding Pressure Gauge
Gas Test Manometer
Bourdon Tube Pressure Gauge ETC
About US
We are professional pressure gauge manufactory .
Our Production machines
Our factory adopts advanced equipment : Argon arc welding machines
and plasma welding machines. We also have laser printing and
welding machines and Helium spectrometer leakage. These help ensure
stable quality in the HuaZhou Instrument line of pressure and
temperature instruments.
More than 2 experienced engineers
We have experienced engineers developing products and overseeing
quality.
Each month we produce up to 180,000 pressure gauges. Our gauges
range from 1 inch in diameter to 10 inches, and are guaranteed for
1 year. Clients in the US,Canada,Australia, Brazil, France, Spain,
South Africa, Indonesia, Thailand and Vietnam rely on us and you
can too.
