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30733930 Expansion Valve For Air Conditioner

Minimum Order Quantity : 1 Price : Negotiable
Packaging Details : Carton Payment Terms : L/C, D/A, Western Union, Western Union
Supply Ability : 10000/month
Place of Origin: China Brand Name: Womala
Certification: SGS Model Number: 30733930

Detail Information

Application: Auto Cooling Parts OE Number: 30733930
Car Model: For Fitment Type: Direct Replacement
Warranty: 12 Months Condition: New
High Light:

30733930 Expansion Valve


Air Conditioner Expansion Valve

Product Description

Product Description:
30733930 For Expansion Valve In Car For Air Conditioner
Quick Details:

Product Name

Auto Cooling Parts



Car Model

For Volvo 

Design Style

Car parts

Brand Name


Supply Capacity

1000 pcs per months

Delivery time

3-7Working Days


Guangzhou Ningbo Shanghai


DHL,UPS,Fedex,EMS,by sea,etc


Detailed Description:

The expansion valve adjusts the refrigerant flow rate based on the degree of superheat of the refrigerant at the outlet of the evaporator. The thermal expansion valve controls the flow of refrigerant entering the evaporator by sensing the degree of overheating of the gaseous refrigerant at the outlet of the evaporator. According to different balance methods, thermal expansion valves are divided into external balance and internal balance types. It consists of an induction mechanism, an actuator, an adjustment mechanism, and a valve body. During operation, the temperature sensing bag fixed on the evaporator outlet pipeline senses the overheating temperature of the evaporator outlet, causing pressure to be generated inside the temperature sensing bag and transmitted to the space above the diaphragm by the capillary. Under the pressure, the diaphragm transmits the signal to the ejector pin (actuator) through elastic deformation, thereby adjusting the valve opening and controlling the refrigerant flow rate.

The role of thermal expansion valve:

The thermal expansion valve is installed at the inlet of the air conditioning evaporator and senses the superheat of refrigerant vapor through a temperature sensing element. The opening of the thermal expansion valve is adjusted to adjust the refrigerant flow rate. It has two main functions:
1) Throttling effect: After being throttled by the expansion valve hole, high-temperature and high-pressure liquid refrigerant becomes a low-temperature and low-pressure mist like hydraulic refrigerant, creating conditions for refrigerant evaporation;
2) Control the flow of refrigerant: The liquid refrigerant entering the evaporator evaporates into a gas through the evaporator, absorbing heat and reducing the temperature inside the vehicle. The expansion valve controls the flow of refrigerant to ensure that the evaporator outlet is completely gaseous refrigerant. If the flow rate is too high and the outlet contains liquid refrigerant, it may enter the compressor and cause liquid hammer; If the refrigerant flow rate is too low, evaporation is completed ahead of schedule, resulting in insufficient cooling;


Product Photo:
30733930 Expansion Valve For  Air Conditioner 0
Company Profile:
Established in Guangzhou China, Xinwo Autoparts as a comprehensive company with five branches has engaged in for for parts for more than 10 years. There are hundreds of professional staff working in our supply department, sales and logistic support departments. Thanks to the deep cooperation with over 50 factories including 5 joint-stock companies, we have provided a variety of reasonable product solutions and reliable market information constantly to clients around the world over the past ten years.
We always strive to offer customers original for for parts, domestic parts, original factory supporting OEM accessories, Hella, Mareli ,Bosch and other brand accessories that align with customers’ requirements. Our strong inventory capacity and strict product quality control system can supply right and reliable products rapidly. Therefore, our products are favored by over 20,000 customers around the world, 30% who are terminal repair shop clients. The market-tested products have been exported to more than 20 countries in Asia, Africa and America, such as Brazil, Mexico, Argentina, Philippines, Malaysia, Singapore, Turkey, Egypt, Sweden, Russia and so on.
Industry advantage:
● 12+Year Of Exports Experience
● Export Of Whole Vehicle Parts
● OEM DOM Service
● Large Inventory,Fast Delivery
● More Than 10000+SKU Numbers
● Brand Quality And Assurance

30733930 Expansion Valve For  Air Conditioner 1
Q1. How about your delivery time?
A: Products will be quick delivery. For those need to wait, it will take 30 to 60 days afterreceiving your advance payment.The specifio delivery time depends on the items and thequantity of your order
Q2. Can you produce according to the samples?
A:  Yes, we can produce by your samples or technical drawings.We can build the moldsand fixtures
Q3. What is your sample policy?
A:  We can supply the sample if we have ready parts in stock, but the customers have topay the sample cost andthe courier cost
30733930 Expansion Valve For  Air Conditioner 2

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19924269376 +86 189 3322 4601
19924269376 +86 189 3322 4601