Products

Thermal Expansion

Linear Expansion Apparatus Dial Form
1206

This Linear Expansion testing device makes studying the expansion of metals simple and instantly visible to the student. A metal rod is inserted into the steam chamber and steam is applied. Expansion of the rod is immediately registered by the dial indicator that is mounted on one end. The heat jacket has three inlet tubes for water intake, outlet and thermometer insertion.  Unit includes four metal rods 6mm x 60cm of aluminum, steel, brone, and brass. A steam source is not provided.
   
Bimetal Heat Transfer Stripe Bimetal Heat Transfer Strip
S202.1 -A Wooden handle, brass / iron, 3.5x20cm
S202.1-B Wooden handle, brass / iron, 2x21cm
S202.2-C Plastic handle, brass / iron, 2x21cm
S202.2-D Plastic handle, brass / iron, 2x21cm
S202.1-E Wooden handle, bi-metal blade.
Students can observe strip bending when it's heated because the two metals expand by different amount.
Thermostat Model
S202.4-A  Round Base
S202.4-B  Square Base
A dramatic demonstration of the thermostat principle! Consists of a bimetal strip mounted in a base. Because of the unequal expansion of the two different metals, the bimetal strip will bend to open or close the circuit and the light bulb lights up accordingly.
Ball & Ring App with Support Stand
S204.1  

This unit demonstrates the expansion of metal with heat and its contraction when cooled. When a ball or ring on a handle is heated, the ball will not pass through the ring, but when cooled the ball passes through the ring freely. Comes with support stand.
   
ball and ring apparatus Ball and Ring Apparatus
This unit demonstrates the expansion of metal with heat and its contraction when cooled. When a ball or ring on a handle is heated, the ball will not pass through the ring, but when cooled the ball passes through the ring freely.
S204.1A 2pc/set, one ball, one ring
S204.1B 2pc/set, one ball with chain, one ring
S204.1C ball with chain, ball and ring in same pc
 
bar and gauge apparatus Bar and Gauge Apparatus
This apparatus demonstrating expansion by heating and contraction by cooling. It's an excellent unit to visualize thermoal expansion.
S204.2A Brass bar brass gauge
S204.2B Brass bar steel gauge
S204.2C Brass bar aluminum gauge
   
linear expansion apparatus Linear Expansion Apparatus
S204.3

The thermal linear expansion differences among copper, aluminum and iron rods can be observed on the scale.
Base board 220x90mm, rods length 180mm.