Model No.: Q41
A Ball Valve is a form of quarter-turn valve which uses a hollow, or solid, perforated and pivoting ball to control flow through it. It is open when the ball's hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valve's status.The shut position 1/4 turn could be in either CW or CCW direction. (S = SHUT, O = OPEN)
Ball valves are durable, performing well after many cycles, and reliable, closing securely even after long periods of disuse. These qualities make them an excellent choice for shutoff and control applications, where they are often preferred to gates and globe valves, but they lack their fine control in throttling applications.
The ball valve's ease of operation, repair, and versatility lend it to extensive industrial use, supporting presure up to 1,000 bar (100 Mpa; 15,000 psi) and temperature up to 752 °F (400 °C), depending on design and materials used. Sizes typically range from 0.2 to 48 inches (5.1 to 1,219.2 mm). Valve bodies are made of metal, plastic, or metal ; floating balls are often chrome plated for durability. One disadvantage of a ball valve is that they trap water in the center cavity while in the closed position. In the event of a freeze, the sides can crack due to expansion of ice forming. Some means of insulation or heat tape in this situation will usually prevent damage. Another option for cold climates is the "freeze tolerant ball valve". This style of ball valve incorporates a freeze plug in the side so in the event of a freeze up, the freeze plug ruptures (acts as a sacrificial disk), thus making for an easy repair. Now instead of replacing the whole valve, just screw in a new freeze plug.
In the case that a ball valve is used for cryogenics or product that may expand inside of the ball, there is a vent drilled into the upstream side of the valve. This is referred to as a vented ball. Safety is the number one concern when engineers specify a vented ball.
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Yongjia South Trading Co.,Ltd
Yongjia South Trading Co.,Ltd is joint venture company of Zhejiang Chaolian Valve Co.,Ltd(http://www.sl-v.cn) which was established in 2016 with the target to prompt industry stainers and all type of valves business worldwide easily and effectively. All our team members are come from reputable factory in Oubei Town, Wenzhou City with average 8 years working experiences.
We have stable relationship with professional factory for high pressure valve, industrial strainer, plug valve, Butterfly Valve, Ball Valve, valve spare parts as well as casting/forging foundry. Compare with other factory or trading company, we can have better support from the factory in price, technical specification response, delivery time, payment term and prompt aftersale services.
The main partners we worked together since 2016 are foucs on power station valve, high pressure Gate Valve, high pressure Check Valve, Y Type Strainer, basket type strainer, lubricate plug valve, trunnion metal seal ball valve, double offset or triple offset betterfly as well as wafer dual plated check valve etc.
Any suggestions for cooperation will be highly welcomed. Yongjia South Trading Co.,Ltd can be your partner for products search, order purchasing, order tracking & inspection and even can be your purchase agent. The team members are familar with local market and have professinal skills in controlling of raw material supply, manufacturing process, final hydraulic test, package and shipment. Photos, videos for each critical stage can be given as well as weekly progress report according to the requirements of the customer.
- Company Name: Yongjia South Trading Co.,Ltd
- Representative: Jin Xilei
- Product/Service: Power Station Valve , High Pressure Gate Valve , High Pressure Check Valve , Y Type Strainer , Basket Type Strainer , Wafer Dual Plate Check Valve
- Capital (Million US $): 100,000RMB
- Year Established: 2016
- Total Annual Sales Volume (Million US $): Below US$1 Million
- Export Percentage: 91% - 100%
- Total Annual Purchase Volume (Million US $): Below US$1 Million
- No. of Production Lines: 2
- No. of R&D Staff: 5 -10 People
- No. of QC Staff: 5 -10 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): 5,000-10,000 square meters
- Factory Location: Dongou Industry Zone, Oubei Town, Wenzhou City, China PR
- Contact Person: Mr. Jack
- Tel: 0086-577-67299368
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