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Product Details:
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| Type:: | Ductile Iron Y Strainer | Port Size:: | DN50-300 |
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| Product Name:: | Metal Check Valves | Bonnet Material:: | Ductile Iron ,QT450 |
| Color: | Blue | Pressure:: | PN10 |
| Highlight: | QT450 cast iron check valve,DN50 cast iron check valve,PN10 Flap flanged ball check valve |
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Check valve refers to a valve whose opening and closing part is a circular disc and acts by its own weight and medium pressure to block the backflow of the medium. It is an automatic valve, also known as a check valve, a one-way valve, a return valve or an isolation valve. The movement mode of the valve disc is divided into lift type and swing type. The lift check valve is similar in structure to the globe valve, except that it lacks the valve stem that drives the valve disc. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the weight of the disc and its flow resistance, the valve is opened. Conversely, the valve is closed when the medium flows back. The swing check valve has a disc that is inclined and can rotate around the axis, and the working principle is similar to that of the lift check valve. The check valve is often used as the bottom valve of the pumping device, which can prevent the backflow of water. The check valve is used in combination with the globe valve, which can play the role of safety isolation. The disadvantage is that the resistance is large and the sealing is poor when closed
1. The function of the check valve: prevent the backflow of the medium, prevent the reverse rotation of the pump and the driving motor, and discharge the medium in the container.
2. Check valve refers to the valve that automatically opens and closes the valve flap by relying on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve, and back pressure valve. A check valve is an automatic valve.
3. According to the structure, check valves can be divided into three types: lift check valves, swing check valves and butterfly check valves:
The lift check valve is divided into two types: vertical and horizontal.
The swing check valve is divided into three types: single-lobe type, double-lobe type and multi-lobe type.
The butterfly check valve is a straight-through type.
Technical Specification:
| Nominal Diameter | DN50-DN300 |
| Nominal Pressure | PN10-16 |
| Flange Connection | ASME B16.1 CL125/EN1092 PN10-16 |
| Inspection and Test | API598/ EN12266 |
| Body | GGG40 |
| Ball float: | GGG40+NBR |
| O-Ring: | NBR |
| Bonnet: | Ductile Iron |
| Bolt: | Stainless steel |
| Washer: | Stainless Steel |
| Washer: | PTFE |
| Plug: | Carbon steel |
Fengbao valve factory is an entity factory with professional production experience and professional manufacturing technology. The company adheres to the business philosophy of "customer-oriented, quality-oriented, attentive service", integrates all kinds of professional advantage resources, and creates cost- effective products. The company has an excellent R & D team, dedicated to creating trustworthy products. Seek new development and create new brand.
The core team has gathered professionals with experience in product R & D, production and operation. The company attaches great importance to the growth of its employees while growing up, and has long been committed to the cohesion and improvement of their sense of responsibility, technical level and professional knowledge. The company provides development opportunities and platforms for every excellent employee, provides standardized system training and promotion mechanism, and helps employees to improve and grow in their own work field.
The company's products are mainly featured by appropriate price, excellent quality and high cost performance. Company independent research and development, production, unique production, to achieve the first-class quality, and favored by the majority of customers!
| Q1. Can I have a sample order for valve? | A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable. |
| Q2. Do you have any MOQ limit for valve order? | A: Low MOQ, 1pc for sample checking is available |
| Q3. How do you ship the goods and how long does it take to arrive? | A: We usually ship by sea. It usually takes 30 days to arrive. Airline shipping also optional. |
| Q4. How to proceed an order for valve? | A: Firstly let us know your requirements or application. Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order.Fourthly We arrange the production. |
| Q5: Are you products standard? | A: Our model is standard, if you have specific demand, pls tell us. |
| Q6: Do you have interest to do our own design items? | A: Absolutely! We have big interest. |
Contact Person: Mr. Li
Tel: +86-18031781668
