Full welded ball valve
The pressure in the pine line push the seat ring moving towards ball, thus form the sealing; As the sealing is formed by the line pressure itself, the performance will be better, in the mean time, it also reduced the operation torque of the actuator; While the ball cavity pressure exceed the line pressure, the pressure difference will push the seat off the ball to release the excessive pressure to the pipe pine; When the temperature rises, it won't cause abnormal pressure rise in the valve cavity.
The pressure can be released to zero when the valve is in full close, full open or under pipe line pressure; Also, the seeper, dirt or deposit can also be eliminated by removing the drainage plug on the valve body
In case the sealing element is destroyed by eye winker in the pipe line or smashing, sealant will be used to avoid leakage; The stem is designed with two part sealing, and sealant can be injected between.
Ven when the seal is burned down by fire, the metal to metal seal design will be applied to avoid spread of fire.
Body to use high quality forged steel, with welding on the mid body, formed one piece; Appearance design, high strength, light in weight, smart in volume; Bolts and nuts are not adopted, thus no leakage point; Suitable for under ground application.
He ball is supported by upper stem and the lower trunnion; The ball axle is maintained in it's centerline, thus is good in sealing and operation; The low friction TFE in the stem and trunnion part enables the valve to operate smoothly and simply under pressure.
The ball valve series is maintenance free, thus greatly reduced user's cost; The bearing, seal are adopt low friction co efficiency material, no lubricate is required
Full welded ball valve
Full welded ball valve / Technical parameters
Design standard API 6D
Face to face API 6D
Flange end ANSI B16.5
Butt-welding ends ASME B16.25
Test &inspection API 6D API598
Wenzhou ok valve manufacturing Co., Ltd is a stock sharing corporation specializing in developing, designing, manufacturing, distributing and after sale service. Located in OuBei where is reputed "the Town of Pump&Valve in China". Near the new 104 national highway as well as old one, the convenient transportation has become its advantage.
Since our factory was founded, we've been based on constant technical innovation and development of new products. At same time, engage well-known valves engineers, using world's advanced technology, it also owns large and medium sized production facilities and testing equipment, the products are strictly designed &manufactured in accordance with standards like API, ANSI, JPI. JIS, DIN, BS etc. The body material used are WCB, WCC, WC6, WC9, C5, CF8, CF3, CF8M, CF3M, LCB, LCC, Monel etc.
Our products are characterized by their advanced structure, excellent production process. Complete specifications. Top quality and so on. They are widely applied for fittings of imported equipment and the construction of key projects in such pipeline industries as petroleum, chemical engineering. Metallurgy. Machinery, electricity and so on, which have won deep trust and a good reputation among users.
We sincerely welcome users from all walks of life to buy our products, We'd like to cooperate with you on the journey to success for common achievements!
