Service & Support | China Leading Compressed Air Treatment Solutions & Equipment Manufacturer

Configuration Diagram of
Compressed Air Purification System

Compressed Air Quality

Typical Applications

Dew Point: -20°C ~ -40°C

Particles: ≤ 0.1 μm

Oil Content: ≤ 0.01 PPm

High-voltage electrical insulation, powder storage, transportation and drying, high-grade spraying, motor and electronic component processing, precision pneumatic instruments, printing, packaging and textile machinery...
Dew Point: -20°C ~ -70°C

Particles: ≤ 0.1 μm

Oil Content: ≤ 0.01 PPm

Ultra-Precision Coating, Electronics Industry, High- Precision Control Instruments, Aerospace, Laser Surface Cooling, Chemical Fiber Film & Sheet Manufacturing...
Dew Point: -20°C ~ -40°C

Particles: ≤ 0.1 μm

Oil Content: ≤ 0.01 PPm

High-voltage electrical insulation, powder storage, transportation and drying, high-grade spraying, motor and electronic component processing, precision pneumatic instruments, printing, packaging and textile machinery...
Dew Point: -20°C ~ -70°C

Particles: ≤ 0.1 μm

Oil Content: ≤ 0.01 PPm

High-voltage electrical insulation, powder storage, transportation and drying, high-grade spraying, motor and electronic component processing, precision pneumatic instruments, printing, packaging and textile machinery...
Dew Point: 2°C ~ 10°C

Particles: ≤ 0.01 μm

Oil Content: ≤ 0.01 PPm

Plastic injection molding, precision pneumatic instruments, control valves, high-grade spraying, powder and granular product transportation...

Selection Guide

Selection Guide for Compressed Gas Dryers

To select a dryer correctly, five factors must be considered simultaneously: the actual flow rate, pressure, and temperature of the compressed gas, as well as the ambient temperature and the required pressure dew point temperature. The dryer handling capacity is calculated by the formula: Qs = Qa ÷ C1 ÷ C2 ÷ C3, where Qa in the formula refers to the actual flow rate of the compressed gas.

Example: The inlet air pressure of the refrigerated dryer is 0.7 Mpa, the inlet air temperature is 40°C, the ambient temperature is 40°C, and the actual flow rate Qa of the compressed air is 10 m³/min. Refer to the table below: C1 = 0.81, C2 = 1, C3 = 1. It is calculated that Qs = 12.3, so the specification XS-12A is the most suitable choice.

Ambient Temperature Correction Factor
Ambient Temperature (°C)	30	35	40	45
Correction Factor	1	0.91	0.81	0.72

Inlet Temperature Correction Factor
Ambient Temperature (°C)	30	35	40	45	50	55
Correction Factor	1.36	1.11	1	0.82	0.69	0.58

Inlet Pressure Correction Factor
Inlet Pressure (MPa)	0.3	0.4	0.5	0.6	0.7	0.8	0.9	1.0	1.1	1.2	1.3	1.4	1.5	1.6	2.0
Correction Factor	0.77	0.86	0.92	0.93	1	1.04	1.08	1.11	1.15	1.18	1.22	1.25	1.28	1.30	1.32

Pressure Dew Point and Moisture Content

When the pressure at the air outlet of the refrigerated air dryer is 0.7 MPa, the pressure dew point ranges from 2 to 10°C, which is equivalent to an atmospheric pressure dew point of -23 to -16°C. At this time, the moisture content is approximately 0.82 to 1.48 g/m³.

When the inlet air temperature is 40°C, the outlet air temperature of the refrigerated air dryer is around 22-26°C, which is equivalent to a relative humidity of 4-7% for air at 20°C under atmospheric pressure.

Pressure Dew Point - Atmospheric Dew Point Conversion Chart

Pressure Dew Point (°C)

Atmospheric Dew Point (°C)

Atmospheric Dew Point - Moisture Content Relationship Table

Dew Poin (°C)	Moisture Content (g/m³)	Dew Poin (°C)	Moisture Content (g/m³)	Dew Poin (°C)	Moisture Content (g/m³)	Dew Poin (°C)	Moisture Content (g/m³)
46	68.5	9	8.819	-14	1.736	-37	0.2359
42	56.4	8	8.270	-15	1.605	-38	0.2141
40	51.0	7	7.750	-16	1.483	-39	0.1940
38	46.1	6	7.260	-17	1.369	-40	0.1757
36	41.6	5	6.797	-18	1.261	-41	0.1590
34	37.5	4	6.360	-19	1.165	-42	0.1438
32	33.8	3	5.947	-20	1.074	-43	0.1298
30	30.3	2	5.559	-21	0.9884	-44	0.1172
28	27.2	1	5.192	-22	0.9093	-45	0.1055
26	24.3	0	4.847	-23	0.8359	-46	0.09501
24	21.8	-1	4.523	-24	0.7678	-47	0.08544
22	19.4	-2	4.217	-25	0.7074	-48	0.07675
20	17.30	-3	3.930	-26	0.6463	-49	0.06886
19	16.31	-4	3.660	-27	0.5922	-50	0.06171
18	15.37	-5	3.407	-28	0.5422	-51.1	0.054
17	14.48	-6	3.169	-29	0.4960	-53.9	0.040
16	13.63	-7	2.946	-30	0.4534	-56.7	0.029
15	12.83	-8	2.737	-31	0.4141	-59.4	0.021
14	12.07	-9	2.541	-32	0.3779	-62.2	0.014
13	11.35	-10	2.358	-33	0.3445	-65.0	0.011
12	10.66	-11	2.186	-34	0.3138	-67.8	0.008
11	10.01	-12	2.206	-35	0.2856	-70.6	0.005
10	9.309	-13	1.876	-36	0.2597	-73.3	0.003

Service System

Xiangsheng Purification Technology is committed to building a relationship of mutual trust, reliance and close cooperation with customers and partners. We fully support the long-term development of customers with professional capabilities and attentive services.

Pre-sales Service

We provide customers with comprehensive technical support, assist in technical communication, listen to opinions and conduct comprehensive analysis. We also formulate reasonable and feasible technical solutions and equipment configurations to ensure that customer needs are met.
In-sales Service

We strictly abide by contracts and technical agreements, and provide relevant drawings, documents and equipment on time. This ensures the smooth progress of projects and safeguards the interests of customers.
After-sales Service

Xiangsheng provides all-round "Worry-free Service". If the equipment malfunctions within the warranty period, we offer free maintenance. After the warranty period, we provide lifelong paid services and supply spare parts at preferential prices for a long time. Our engineers will respond within 5 minutes after receiving the customer's notice and can arrive at the site in as fast as 48 hours to ensure the normal operation of the customer's production. Meanwhile, we provide users with operation training and installation & commissioning guidance, establish customer files and conduct regular return visits.
In-sales Service

The company has established a service network centered on regions to provide high-quality services for customers across the country. Customers can submit service requests and feedback through the official website (www.xsair.cn), or call the national service hotline at 0573-88388958 for immediate support.

Service System

We provide customers with comprehensive technical support, assist in technical communication, listen to opinions and conduct comprehensive analysis. We also formulate reasonable and feasible technical solutions and equipment configurations to ensure that customer needs are met.

We strictly abide by contracts and technical agreements, and provide relevant drawings, documents and equipment on time. This ensures the smooth progress of projects and safeguards the interests of customers.