China 4 inch Brass Gas Ball Valve With Certification Manufacturers, Suppliers, Factory

There are generally two types of double disc gate vlaves, one is the wedge double disc gate valve (that is, the sealing surface of the gate and the center line of the stem are at a certain angle, there are 2.8° and 5°, different manufacturers have different designs) , The other is the parallel double disc gate valve, the gate sealing surface of this gate valve is parallel to the center line of the valve stem, and the two gates are separated in a K shape.

Pneumatic Flange Ball Valve is a quarter turn valve that uses a ball with a hole drilled through it to control the flow of media. The hole is referred to as the port or orifice and when opened, it’s aligned with the valve body to permit flow. The ball is contained within a body and uses a stem that is connected to the output shaft — in this case, of a pneumatic or electric actuator.

Resilient Seat Seal Gate Valves are also called lifting stem gate valves, also called rising stem gate valves. Usually there is a trapezoidal thread on the lifting rod, through the nut on the top of the valve and the guide groove on the valve body, the rotary motion is changed into linear motion, that is, the operating torque is changed into operating thrust. The opening and closing part of Resilient Seat Seal Gate Valves is a gate. The movement direction of the gate is perpendicular to the direction of the fluid. It can only be fully opened and closed, but cannot be adjusted or throttled. The Resilient Seat Seal Gate Valves produced by Milestone Valve Company have stable performance and are used in various fields such as petroleum, chemical industry, and water conservancy.

The Electric Three Way Ball Valves are the most common types of ball valves that driven by electric actuator . The Electric Three Way Ball Valves have three ports or connections for pipe.

Welded Gate Valve is packed with corrosion agent avoids stem rusted. Deep Stuffing box guarantees long packing usage life..Welded seating ring effectively eliminates pipe leakage.

Stainless steel wafer ball valve is suitable for Class150, PN1.0 ~ 2.5MPa, the working temperature of 29~180℃ or 29~300℃ all kinds of pipeline, used to cut off or connect the medium in the pipeline. The valve is apply to water, steam, oil, nitric acid, acetic acid, oxidizing medium and other media.