Factory Original T46 Pressure-Type Liquid Expansion Refrigerator Thermostat for Heating/Cooling Equipment

Product Description

Product Description

Factory Original T46 Pressure-type Liquid Expansion Refrigerator Thermostat for Heating/Cooling Equipment

This is a T46 type pressure-type mechanical thermostat, also called a liquid expansion thermostat, a core component used in commercial and residential heating/cooling equipment for precise temperature control.

Working Principle:

It operates based on the principle of liquid thermal expansion and contraction and pressure-driven mechanical switching:
- Temperature Sensing: The temperature sensing bulb (probe) directly contacts the controlled object or environment, and is filled with a temperature-sensing liquid (such as silicone oil or isobutane).

- Pressure Conversion: When the temperature rises, the liquid inside the temperature sensing bulb expands due to heat, increasing the pressure; when the temperature decreases, the liquid contracts, decreasing the pressure.

- Switching Action: Pressure changes are transmitted through a capillary tube to the bellows/diaphragm inside the thermostat, pushing the mechanical structure to control the opening and closing of contacts, thereby starting or stopping the heating or cooling element.

- Manual Adjustment: The adjustment shaft at the top can change the preload of the internal spring, thereby setting different target temperatures.

Specification

Product Name	(T46) Pressure-type Liquid Expansion Refrigerator Thermostat
Electrical Parameters	Rated Voltage	250V~ 50/60Hz
	Rated Current	16 (4) A (resistive load)
	Protection Class	IP00
	Certification Standards	CE, EAC
Temperature Control Parameters	Temperature Control Range	Commonly -30°C ~ +90°C (depending on model)
	Temperature Switching Difference	2~5°C
	Temperature Sensing Response Time	1K/2min (Temperature change of 1K requires 2 minutes)
Physical Parameters	Capillary Length	Commonly 1.5m~3m (long coil design shown in the picture)
	Sensing Bulb Material	Stainless Steel
	Capillary Material	Tin-plated Copper
	Main Body Material	Galvanized Steel Plate + Engineering Plastics
Environmental Parameters	Ambient Temperature Range	-25°C ~ +60°C
	Humidity Range	≤95% (non-condensing)

Product Features & Main Application Scenarios: 

Features:

I. Purely Mechanical Structure: No external power supply required; operates based on physical principles, ensuring high reliability and strong anti-interference capabilities.

II. Flexible Installation: The capillary tube can be freely bent to adapt to the internal layout of different equipment.

III. Safe and Reliable: Complies with CE and EAC safety certifications and features built-in overload protection.

IV. Wide Applicability: Can be used for temperature control in both heating and cooling modes.

V. Low Cost: Mature technology, high cost-performance ratio, making it the first choice for various temperature control devices.

Application:

I. Commercial Kitchen Equipment: Gas ovens, electric fryers, griddles, warming cabinets.

II. Household Equipment: Refrigerators, freezers, electric water heaters, space heaters.

III. Industrial Equipment: Small boilers, heat exchangers, constant temperature incubators.

IV. Automotive Equipment: Car air conditioners, parking heaters.

Product Pictures

Packing & Delivery

Workshop Pictures

Certifications

FAQ

FAQ

Q1 Are you trader? 
A1 We are factory.
 
Q2 What's your lead time for 5000pcs?
A2 We need around 20days after down payment received. .
 
Q3 You payment term?
A3 We accept LC, T/T 20% remittance +80% before delivery, DP.
 
Q4 Can we print our LOGO on heating element?
A4 Yes.
 
Q5 Do you offer guarantee? 
A5 Yes. We offer 1 year guarantee.