China Explosion-Proof Electric Contact Bimetal Thermometer Supplier, Suppliers

This thermometer combines explosion-proof and electric contact bimetal technology to provide stable and precise temperature readings in extreme environments. The 100mm size and stainless steel housing give it exceptional durability and corrosion resistance for outdoor use. The device features adjustable upper and lower limits, allowing users to flexibly adjust the temperature control range to ensure the safe operation of equipment. Whether in high-temperature or harsh industrial environments, the bimetal structure ensures the accuracy and stability of temperature measurements. It is suitable for various industrial scenarios, including pipeline monitoring, external equipment temperature control, and more, making it ideal for devices requiring explosion-proof and precise temperature control.

Product Description

Product Specifications
Case Die casting aluminum
Size 150mm (6")
Ring(Cover) Die casting aluminum
Window Polycarbonate/tempered glass
Pointer Aluminum Alloy, Black Finished, Zero-adjustable
Dial Aluminum alloy in white background, can be in customize brand logo
Connection SS304 (or SS316 as per request), bottom mounting
Thread 3/8", 1/2"; PT(BSPT,ZG), BSP(G,PF), NPT etc. as per request
Sensing Element Bi-metallic coil
Accuracy Class 1.0 as per EN 13190
Over pressure limit 110 % of full scale value
Ambient temperature -25°C to +65°C
Process temperature Max. 400°C
Stem material Stainless steel 304 (SS316 as per request)
Stem bulb Diameter 6mm or 8mm; length from 50mm to 500mm
Wiring type Junction box (JB) on right side
Contact type Sliding switch SPST
Contact function Single contact N.O. (1a) / Single contact N.C. (1b)
Double contacts N.O.+N.C. (1a1b)
Double contacts N.C.+N.O. (1b1a)
Double contacts N.O.x2 (2a)
Double contacts N.C.x2 (2b)
Protection IP65
Explosion-proof level Class I, Gr B, C & D, Class II, Gr E, F & G
Key Features
Explosion-proof enclosure
Adopts SPDT micro switch, max. contact rating 5A, suitable for high current environment
Suitable for temp control in high current and hazardous environment
Wide selection of temperature ranges
All-stainless steel construction design
Adopts sliding switch SPST with various contact function
Stem length and outer diameter can be customized upon request
Protection to IP65
Customized & OEM dial design
ISO & CE Certificate
Applications
Some industries where bimetallic temperature gauges are used are:
Chemical / petrochemical industry
Thermal / hydro power stations
Pharmaceutical industry
Food processing industries / hygienic applications
Water treatment plants
Iron and steel industry
HVAC
Rubber molding / processing plants
Hydraulics and pneumatic
Sugar / fertilizer industries
Refineries
Cryogenics
Frequently Asked Questions (FAQ)
What materials are used for the case and stem of this bimetallic temperature gauge?
The case and cover ring are made of durable die-casting aluminum, while the sensing stem is constructed from Stainless Steel 304 (or SS316 upon request) for high chemical and thermal resistance.
Is this temperature gauge suitable for hazardous and explosion-proof environments?
Yes, it features an explosion-proof enclosure certified for Class I, Gr B, C & D, and Class II, Gr E, F & G hazardous environments, along with IP65 weather protection.
What contact types and electrical switch functions are available?
It adopts a sliding switch SPST (or SPDT micro switch, rating up to 5A). Functions include single contact (N.O. or N.C.) and double contacts (N.O.+N.C., N.C.+N.O., double N.O., or double N.C.).
What are the maximum process temperature and measurement accuracy limits?
The maximum process temperature is up to 400°C with an ambient operating temperature ranging from -25°C to +65°C. It meets Accuracy Class 1.0 according to EN 13190 standards.
Can the stem dimensions and connection threads be customized?
Yes, the stem bulb diameter (6mm or 8mm), stem length (50mm to 500mm), connection threads (3/8", 1/2"; PT, BSP, NPT), and dial logo design can all be customized to OEM requirements.

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