Basic Info.
Valve Structure
Direct-Acting Piston Structure
Application
Industrial Usage, Water Industrial Usage
Transport Package
Carton Packing
Specification
140* 74 * 117
Product Description
Product Introduction
Condensate water will be produced in the process of compressed air system. Quality of compressed air will be seriously affected if the condensate containing oil and particle impurities can not be discharged in time.
Smart Drain from NIANCHENG is a kind of zero air-loss intelligent drain valve.It adopts level sensor and CPU control system, which can effectively discharge condensate according to its actual amount. It can only drain condensate water but not exhaust, so as to avoid loss of compressed air.
Smart Drain's innovative modular structure design replaces the traditional old structure. The old adhesive structure requires complex internal terminal wiring, and it cannot cut off power in itself during work. The disassembly and assembly of sensors and valves are very complicated. The modular structure of Smart Drain overcomes this series of disadvantages and makes use and maintenance more convenient.
Smart Drain is designed with fast acting, high frequency and large overload capacity.
Smart Drain is a kind of standard type of zero air-loss intelligent drain valve with a wide range of specifications and multiple choices in terms of discharge volume, working pressure, applicable voltage and materials.
Smart Drain has been finalized through six tests: Pressure Test, Flow Test, Impurity Test, Electromagnetic interference Test, Water spraying Test and Life-time Test, ensuring long service life and high reliability.
Product Features
- Innovative modular structure, more convenient to use and maintain
- Real-time discharge according to actual condensate amount, zero air-loss
- LED shows running state
- Output of alarm signal
- Visible change of condensate with translucent housing
- Manual test
- Large orifice matched with strainer, no blockage
- Special voltage, high pressure, all stainless steel products are optional
- Heating bar can be used for anti-freezing
Operating Principle
Condensate water flows into storage tank from inlet, and water level of the tank continues to rise;
When water level rises to induction point, the sensor sends a signal and the solenoid valve opens to discharge condensate water;
When condensate water is nearly exhausted, the solenoid valve will automatically close, leaving a small amount of condensate water, forming a water seal;
When drain valve fails and water level is too high,the sensor inducts by real-time, drain valve enters self-cleaning drainage mode automatically, and can outputs alarm signal remotely.
Innovative modular structure of Smart Drain
1,Ball Valve Strainer specially for zero air-loss drain 2,Assembly of movable joint 3,Assembly of water storage tank(including strainer) 4,Assembly of solenoid valve 5,Controller assembly 6,Power connector 7,Alarm connectorTechnical Specification| | |
| Product model | SD-400 |
| Product features | 1, Zero air-loss 2, Innovative modular structure
3,Complete specifications to meet needs of all air compression systems | |
| Applications | General purpose,such as cooler,separator,air tank,refrigeration dryer | |
| Working pressure | 0-0.3 Mpa | 0.3-1.6 Mpa | |
| Max. discharge volume corresponding to working pressure | 70 L/h | 65 L/h | |
| Recommended Compressor Capacity | 50 m3/min | |
| Recommended refrigeration dryer capacity | 100 m3/min | |
| Recommended filter capacity | 500 m3/min | |
| Applicable media | Water,Oil-containing condensate | |
| Temperature of medium | 1-60 ºC | |
| Temperature of ambient | 1-60ºC(Heating bar is optional for sub-zero temperature) | |
| Inlet | 2 * G1/2'' | |
| Outlet | Φ10 (G1/2'') | |
| Type of discharge valve | Solenoid valve | |
| Valve orifice | 4.0 mm | |
| Front mesh strainer of discharge valve | Yes(Inner set) |
| Material of housing | 304
Stainless steel |
| Manual function | Yes | |
| Protective class | IP65 | |
| Supply voltage options | 24V AC/DC ,110V AC ,220V AC | |
| Alarm function | Two kinds of alarm contacts of normally open(N.O) (switch on when alarm) and normally closed(N.C) (switch off when alarm) are available at the same time | |
| Load of alarm contacts | Max. 62.5VA for alternating current, Max. 60W for direct current | |
| Overall dimensions L* W * H (mm) | 172 * 110 * 147 |
| N.W. | 3.3 kg |
| Model | SD-400 |
| Pressure range | 0-0.3
Mpa | 0.3-1.6
Mpa |
Max. Discharge volume(L/h)
| 0.1 Mpa | 46 | / |
| 0.2 Mpa | 70 | / |
| 0.3 Mpa | 87 | 45 |
| 0.4 Mpa | / | 51 |
| 0.5 Mpa | / | 57 |
| 0.6 Mpa | / | 61 |
| 0.7 Mpa | / | 64 |
| 0.8 Mpa | / | 67 |
| 1.0 Mpa | / | 75 |
| 1.6 Mpa | / | 90 |
2,When water volume is known, choosing model according to P and water volume in the "List of Max. discharge volume".
3,When water volume is unknown, model choice can be made according to compressor capacity in the below list.| Model | SD-400 |
| Recommended compressor capacity | 50 m3/min |
| Recommended refrigeration dryer capacity | 100 m3/min |
| Recommended filter capacity | 500 m3/min |
1,About air blockage
The most common problem encountered in installation and use of drain valves is that condensate can not enter water storage tank, and the main reason is air blockage.
When amount of condensate water is small,there is no air blockage and no need to set an air balance pipe,as shown in the below figure.
When amount of condensate water is large, air blockage occurs,as shown in the below figure.It is necessary to set an air balance pipe so that water can enter tank smoothly.
Drain valve should be set an air balance pipe , which is a normal installation method. And manual valve should be installed in air balance pipe to isolate the air source during maintenance ,as shown in the right figure. In case that it is impossible to set an air balance pipe, as an alternative method, a vent valve can be installed in the port used for air balance to allow a small amount of air leak, so that the condensate water can flow into tank. The flow rate of vent valve is low and air consumption is extremely small(as shown in the right figure).
2, About impurities Manual valve and Y-strainer should be installed at the condensate inlet pipe of drain valve.Manual valve is used to isolate the air source and Y-strainer is used to filter coarse impurities. The strainer should be slightly sparse. It only needs to block the coarse impurities. Small impurities enter tank and are blocked by the inside strainer of drain valve.If the strainer is too dense, it may block condensate inlet pipe and form air blockage. Without Y-strainer, a large number of large particles of impurities may directly enter water storage tank , resulting in the failure of drain valve, as shown in the right figure. 3,Multiple drainage points can not share one drain valve, because there is a pressure difference among the drainage points, mutual channeling, drain valve can not work, but also cause confusion of air compressing system.
4,SD-200 can be installed horizontally or vertically. Other types of drain valve need to be installed horizontally.Optional accessories Ball Valve Strainer specially for zero air-loss drain valve This BVS integrates manual ball valve and filter. It is specially designed for zero air-loss drain valve.Its main feature is to maintain a straight channel of at least 15mm between inlet and outlet, no curved channel, and it is equipped with a large strainer with moderate density. This structure can not only block coarse impurities, but also effectively prevent air blockage, so that condensate can flow smoothly into the water storage tank.| Rated working pressure | 0-3.0 Mpa |
| Applicable media | Water,Oil,Air |
| Inlet/Outlet | G1/2'' |
| Ball valve orifice | 15.0 mm |
| Inside mesh strainer | Yes |
| Ball Valve | Yes |
| Material of body | Brass |
| N.W. | 0.6 kg |
Address:
5A-04,No.10 Xinfeng Road,Jiangning,Nanjing,China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components
Company Introduction:
Niancheng Pneumatic Technology Nanjing Co., Ltd. Is a high-tech enterprise integrating products development, manufacturing and sales. Which is a professional manufacturer of compressed air drain valve, solenoid valve and pneumatic components.
The Zero Air-loss Intelligent Drain Valve research and developed by our company is of reliable, complete in specifications and cost-effective, and has been widely used by many well-known companies in air compressor industry. Our company′s products also include solenoid valves, pneumatic valves and air source purification devices with complete specifications and high quality.
The company adheres to the philosophy that reliability comes from foucus and expertise. Strict quality control is implemented in every link of our work, in order to provide excellent products and services for customers.
With pioneering and innovative spirit, Niancheng pneumatic looks forward to win-win cooperation with you, creating bright future together.
