With experience of years in ball valve manufacturing and domestic and foreign advanced technology. Our double sealing seat can ensure the seal is reliable. The professional valve seat processing make the coefficient of friction is low and the valve operating torque is small.
The stem head is with a flat square structure and the connection with the handle will not misplace. So it can ensure the handle and the flow direction are in the same direction. When the handle is parallel with the pipeline, the valve is in open state. When the handle and the pipeline are vertical, the valve is in closed state.
To avoid the unnecessary switch action by misoperation and unpredictable pipeline vibration, the locking hole has been set in the position of fully open and fully closed of valve and the padlock can be used to lock the valve. Especially the valve is installed in the field or in the combustible medium petroleum and chemical production line; the locking device will show its unique superiority
When the valve is in operation, the static will be produced and build up on the ball sphere because of the friction between the ball and the seat. To prevent the electrostatic spark, the anti-static device is set on the valve to lead out the static electricity produced during the switching. This design can prevent the occurrence of accidents effectively in the medium with lower ignition point such as gasoline, natural gas, propane in valve.
The valve body and left connecting part is based on gasket. In order to prevent leakage caused by fire, high temperature or vibration etc. The valve body and left part connection is specially designed as metal-to-metal contact and make it form a stop flange to ensure no leakage.
In case of fire the valve seat, packing and other non-metallic materials will be burnt out and a large number of leakage of the medium may be more for the fire. The fireproof structure can stop the leakage of medium. All the possible leakage positions (ball and body, valve stem and body, middle flange) are designed as metal-to-metal contact. In case that the seat is burnt out, ball will contact the metal face directly under the pressure so as to prevent the leakage of medium from the burnt seat.
ISO5211 connection plate is in line with international standards and can be convenient for customers to choose the electrical, pneumatic, hydraulic device according to the need of project.
Zigong Weite Valve MFG Co., Ltd is a professional valve manufacturer established in 2007 that specializing in R&D, manufacturing and mainly saling various ball valves made of carbon steel, low temperature steel, alloy steel. Producing range DN (15-1000mm), PN class 150-2500, working TMP -196 - 680 degree
Our R&D team consists of experienced superior valve experts and engineers that can according to customers' requirement for OEM and ODM. Most important that we strictly enforces the ISO9001, APIQ1, API6D, ASME, B16.34, API608 BS5351, ISO17292, DIN etc. Our products can widely use in the Petroleum industry, Natural gas industry, Chemical industry, Light industry, Ore pulp industry, Electrical industry, Food industry, Metallurgy industry, Coal-to-liquids industry and long distance pipeline and various industrial facilities.
We have exported to Netherlands Germany USA Brazil Columbia Argentina Singapore Thailand Indonesia and Vietnam etc. The customers have been widely accepted our quality which benefited a lot to the fast development of the company. We always do our best to supply more and high quality ball valve products and more satisfactory after service.
