German Standard PN10 PN16 QT450 GGG50 Cast Iron Type Rubber Non Return Ball Check Valve

product description

Check valve is used for pipeline system media downstream open, upstream closed automatic valve, the main role is to prevent media backflow, pump and drive mechanical reverse, prevent water pump and drive motor suddenly stop running when the water shock wave, reduce the damage to the pipeline system. According to the relative displacement of the closing parts and the seat, check valves can be divided into five categories: lifting, swing, disc, diaphragm and spherical check valves. Most of the above check valves have the following disadvantages: "loud noise" and vibration due to water hammer action when closing; Due to the vibration of the valve plate in the valve "joint parts" shaft and shaft sleeve mechanical friction movement, when the valve plate vibration frequency is too high, the shaft and shaft sleeve will produce mechanical friction movement, valve plate displacement, sealing failure, sometimes cause the valve plate off, so that the system protection failure; The fluid flow pattern in the valve is chaotic, the flow resistance loss is large, and the energy loss is serious. In order to avoid and improve the above shortcomings, the spherical check valve with its good sealing, minimal flow resistance and other performance advantages, has been widely used and promoted, its structure from the original "single ball" check valve gradually improved to "independent multi-channel multi-ball" check valve.

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company  profile

 

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!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q : How long is your delivery time?

A : Generally it is 15-30 days. If the goods are in stock 5 days or if the material is not at stock it requires 10 days above, it is according to quantity.

Q : Do you provide samples ? is it free or extra ?

A : Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q : What is your terms of payment ?

A : Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.