CEPAI GROUP CO.,LTD
Movable Flange Assembly Thermal Resistance WZP-320,WZP-321,WZP-330

Movable Flange Assembly Thermal Resistance WZP-320,WZP-321,WZP-330

WZP series assembly-type thermal resistance is used as a sensor to measure temperature, usually matched with display instruments, recording meter and electronic computer. It can directly measure temperature from -200oC to 500oC of liquid, vapor, gas medium and solid surface during various production processes....

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Product Details

WZP series assembly-type thermal resistance

Brief Description

WZP series assembly-type thermal resistance is used as a sensor to measure temperature, usually matched with display instruments, recording meter and electronic computer. It can directly measure temperature from -200oC to 500oC of liquid, vapor, gas medium and solid surface during various production processes. Our factory product two categories assembly-type, unified design type thermal resistance: Pt100 as per IEC and Cu50 as per Professional norm degree. In addition, the device has the advantages of simple assembly, convenient replacement, pressure spring type temperature sensing element, good anti-vibration, wide measuring range, high mechanical strength, good pressure durability.

Working principle

Thermal resistance measures temperature using the property that its resistance value changes with temperature. Temperature sensing element of thermal resistance is made of metal wire twining insulation in pairs equably. When there is temperature gradient in measured medium, the measured temperature is average temperature of the medium where the scope of sensing element in.

Junction box, protective tube, insulated casing, termals and thermal electodes form a basic structure of assembly-type thermocouple, with a variety of installation of fixtures.

 

Main technical parameter

Product standard

IEC751JB/T8622-1997JB/T8623-1997

Normal temp insulating resistance

When environment temperature is 15~35℃, relative humidity is no more than 80%, testing voltage is 10~100V(DC), the insulating resistance of electrode and outer tube is ≥100MΩ.

Range and accuracy

Thermal resistance type

Range

Graduation

Tolerancet 

WZP type Pt resistance

-200~420

Pt100

Class B tolerance±(0.3/+0.005︱t︱)

Class A tolerance±(0.15/+0.002︱t︱)

Note: “t” is absolute value of measured temperature of temperature-sensing element.

Resistance value

Ratio of resistance value of thermal resistance’s sensing element when in 100℃(R100)  and when in 0℃(R0):(R100/ R0)

DegreePt100:Class A R0=100±0.06Ω

                         Class B R0=100±0.12Ω

Thermal response time

When the temperature appear step change, the thermocouple output variation is to the equivalent of 50% of the change, The time required is called the thermal response time “T”

The nominal pressure of the thermocouple

Generally speaking, it is the static outside pressure which the protection tube can withstand without being broken in the room temperature. In fact, allowing working pressure is not only related to the protection tube material, the diameter and wall thickness, it is also related to its structure, the installation method, the into depth, the measured flow rate to its structure, the installation method, the into depth, the measured flow rate and the type of media.

Thermal resistance min inserting depth 

︱min=︱+15D

︱min-min usable inserting depth

-length of temperature sensing element

D-protection tube outer diameter

Model

  W

Z

Spec

Content



P


Pt resistance

C


Cu resistance

Thermal resistance material

-


Without fixed device

2


Fixed threaded

3


Movable flange

4


Fixed flange

5


Loose coupling type

6


Fixed thread conical

7


Direct coupling type

8


Fixed threaded pipe joint type

9


Movable threaded pipe joint type

Fixed installation form

2


Splash proof

3


Waterproof type



No unified design:Socket type,Small junction box type etc

Junction box form

0

Φ16mm protection tube

1

Φ12mm protection tube

Protection tube diameter

No unified design:All kinds of protection tube

W

Z

-



If the movable flange assembly thermal resistance wzp-320,wzp-321,wzp-330 for sale caters to your requirement, welcome to buy with us. As one of the leading such manufacturers and suppliers in China, we will offer you cheap price and excellent services.

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