For routine observations of air temperature, including maximum, minimum and wet-bulb liquid-in-glass thermometers are commonly used. Such thermometers make use of the differential expansion of a pure liquid with respect to its glass container to indicate the temperature. The stem is a tube having a fine bore attached to the main bulb: The volume of liquid in the thermometer is such that the bulb is filled completely but the stem is only partially filled at all temperatures to be measured. The changes in volume of the liquid with respect to its container are indicated by changes in the length of liquid in the stem; by calibration with respect to a standard thermometer, a scale of temperature can be marked on the stem, or on a separate scale tightly attached to the stem.
Cup Mask FFP3 Cup Shaped face Mask With Valve For Head LoopÃ?Â
Cup style Half face Respirators ffp3 face mask cup shape mask ffp3 cup mask with valve
Braided headbands with dual point attachment help provide a comfortable and secure seal. M-noseclip adjusts easily for fewer presure points.
educes heat build-up inside the respirator. Making it suitable for work situations involving heat, humidity, or long periods of wear.
Adcanced electret media is designed for ease of breathing and the cup shape design helps make the respirator feel spacious and durable.
Quality FFP3 cup shaped Face Mask - Highest Standards
Material:PP non woven, soft cotton, melt blown filter
Function:Anti Pollution,Dust,Pm2.5,Smog,Fog,Pollen Etc
Easy Mask Solution Breathable
Masks For Men & Women
The adjustable head strip can better fit face, comfortable and not tight and avoiding fogging your glasses. They are suitable for a variety of face shapes
Product Name: JWV-Outside-Scale Industrial Glass Thermometer
Model Number: JWV-C
Pplication: Widely used in ships,pipelines and some heating or cooling facilities,it remains direct and accurate,and more reliable and resistant to vibration.
Case:Aluminum die-casting
Thermowell:Brass Connection:1/2NPT,1/2BSP ect(fix or sliding)
Product Name: JWV-Outside-Scale Industrial Glass Thermometer,
Model Number: JWV-C,
Pplication: Widely used in ships,pipelines and some heating or cooling facilities,it remains direct and accurate,and more reliable and resistant to vibration.
Case:Aluminum die-casting
Thermowell:Brass
Connection:1/2BSP,NPT etc(fix or sliding)
