1. Pressure testing to ISO5208
2. Material: Brass (CW617N/CW602N)
3. Disc: Brass Disc silicon rubber seals or ABS disc NBR seals
4. Size:Â 1/2''-4"
5. Thread standard: ISO7/1, ISO228, NPT, DIN2999
6. Package details: Each valve by one polybag, inner box, cartons with wooden pallets.
Technical Specification:Â
| Working Pressure: | 1.6Mpa |
| Tested Pressure: | 2.0Mpa |
| Working Medium | Water, non corrosive liquid(not include oil), saturated steam. |
| Working Temperature | -20° C≤ T≤ 150° C |
Function:
Check Valve is an automatic valve, its main function is to prevent the media backflow, prevent pump and drive motor reverse, and discharge the container medium. Check valve can also be used in pipelines that its pressure which may rise to exceed the system pressure auxiliary supply.
Classification:
According to its structure and installed methods Check valve can be divided into
1.Swing Check Valve: Swing check valve disc is cylindrical disk-shape, around the seat channel axis to do rotational movement, due to inner channel is the streamline, the flow resistance is smaller than the lift check valve, apply to the low flow rate and seldom flow changes large-caliber occasions, but it should not be used for pulsatile flow, its sealing performance is less than lift type. Swing Check Valve is devided into single disc, double disc, multi disc. These three types are mainly according to valve diameter, for the purpose to prevent the media stopping flow or reflux, reducing the hydraulic compact.
2.Lift Check Valve: disc slides along the body vertical axis, lift check valve can only be installed in horizontal pipelines, the high-pressure small-diameter check valve upper disc uses ball. Lift-type check valve body shape is the same with globe valve (commonly used to the globe valve), so its flow resistant coefficient is larger. its structure is similar to globe valves, body and disc are the same with globe valve. upper disc and lower bonnet have guided sleeve, the disc guided sleeve can freely lift, when the medium downstream, the disc opens by media thrust, when the media stopped-flow, the disc relies on self-vertical landing on the seat, affected as preventing media backwash. Straight-through lift check valve inlet and outlet media channel direction is perpendicular to seat channels; vertical lift-type check valve, its media inlet and outlet channel direction is the same with the valve seat passage, its flow resistance is smaller than the straight-through type.
Check valve is the valve relies on media flow to automatically open and close the disc, is used to prevent the media backflow, also known as check valve, one-way valve, reflux valve, and back pressure valve.
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Feature editing
1, the pulse bag type Dust Collector [1] uses the split room pulsing pulsate cleaning technology to overcome the shortcomings of the conventional pulse duster and the chamber back duster. It has strong cleaning ability, high dust removal efficiency, low emission concentration, small air leakage rate, less energy consumption, less steel consumption, less area, stable and reliable transportation and good economic benefit. It is suitable for purification and recovery of dust gas in metallurgy, building materials, cement, machinery, chemical industry, electric power and light industry.
2. Due to the use of parting air pulse to blow the ash and blowing ash, it can reach the goal of thoroughly cleaning ash once, so the period of dust removal is prolonged, the energy consumption of ash clearing is reduced, and the air pressure consumption can be greatly reduced. At the same time, the fatigue degree of the filter bag and the pulse valve is reduced correspondingly, thus multiplying the service life of the filter bag and the valve piece.
3. Maintenance and replacement bags can be divided into chambers under the condition of continuous system blower and normal operation of the system. The bag bag mouth adopts elastic expansion ring, which has good sealing performance and firmness and reliability. The filter bag keel is polygonal, which reduces the friction between the bag and the keel, prolongs the life of the bag, and is convenient for unloading the bag.
4. The upper bag is adopted. After changing the bag, the bag is put out and the dirty bag is put into the bottom ash hopper of the box. It is removed by Kong Chu and improved the operation condition of the bag changing.
5. The box is designed with tightness, good sealing performance, good sealing material for inspection door, leak detection with kerosene in production process, and low leakage rate.
6. Inlet and outlet air duct is compact and airflow resistance is small.
Pulse Bag Collector,Bag Filtering Dust Precipitator,Dusty Air Cleaning Equipment ,High Temperature Pulse Bag Collector
Botou Youjian Environmental Protection Equipment Co. LTD. , http://www.btdustmachine.com