Explosion-proof thermal resistance

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WZP-240 series Explosion-proof thermal resistance The structure, principle and assembly of thermal r…

Productoverview:

WZP-240 series Explosion-proof thermal resistance The structure, principle and assembly of thermal resistance is basically the same, the difference is, flameproof or intrinsically safe explosion-proof junction box products (shell) special structure is adopted in the design, wiring box with high strength Aluminum Alloy die casting, and has sufficient internal space, wall thickness and mechanical strength, thermal stability of rubber seal the rings are in line with national standards. So, when the explosive mixed gases inside the enclosure when the explosion occurred, the internal pressure will not destroy the junction box, and the resulting heat is not the outward diffusion of detonation.

Two, work principle:
WZP-240 series Explosion-proof thermal resistance The gap explosion-proof junction box component design principle, with sufficient strength, all can produce a spark, arc and dangerous temperature components are sealed in a box cavity, when the cavity when the explosion occurred, the joint gap flameout and cooling, so that the explosion flame and temperature transmission to the outside of the cavity, thereby temperature measurement.
Three, application:
WZP-240 series Explosion-proof thermal resistance Usually, record and display instruments using instruments, electronic computing and other supporting. Direct measurement of hydrocarbons in the production site and other explosives -200 ~ C~500 ~ C range of liquid, steam and gas and solid surface temperature.
Four, main features:
1, various forms of explosion-proof, explosion-proof performance;
2, large measuring range;
3, high mechanical strength, good pressure resistance.
4, a spring type temperature sensing element, good seismic performance;
Five, technical parameters:
Product executive standard
IEC751
JB/T18622-1997
JB/T8623-1997
JB/T5518-91
Insulation resistance at room temperature
Heat resistance at ambient temperature is 15 to 35 DEG C, relative humidity is less than 80%, the test voltage is 10 - 100V (DC) >100M. The insulation resistance between electrode and outer tube.

Six, installation method:
1, first of all should measure the good thermal resistance thread thread or flange size, supporting flange or thread processing base.
2, according to the size of the base flange or threaded hole in the pipe, to be measured.
3, the flange or the screw tooth of the welding. The flange or thread is inserted has opened hole in the flange or threaded seat base and pipeline measured welding.
4, the screw base thermal resistance with bolts or threaded in has been welded.
5, in accordance with the wiring diagram of the terminal box thermal resistance grounding line, and the display instrument is connected on the dial corresponding. Connection box can not contact with the wall of the measured medium pipeline, ensure the junction box temperature not exceeding 100 DEG C. Outlet hole junction box should prevent due to poor sealing water vapor, dust deposition caused by short circuit terminal.

Seven, measurement range and tolerance:

Eight, selection table:

Heat resistance A By ordering protocol.

Note: the connector form, convenient installation, suitable for measuring -200-450 Liquid, gas and solid surface temperature range.

The design and selection of notes:
1, model;
2, division no.;
3, precision grade;
4, fixed form;
5, the length or depth of insertion.
Customer service service commitment:
1, my company sold Zhongwei Thermal resistance series The product within twelve months of quality problems, responsible for free maintenance.
2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.
3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.
4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.
5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.