One of the key products offered by Zhejiang Aran Flow Technology Co., Ltd. is the Orbit valve - Wegman B.V. Trunnion mounted ball valve. This valve has a unique design that makes it ideal for use in high-pressure and high-temperature applications. The ball is fixed on trunnions, and the seats press against the ball and have springs that press them against the ball. The medium assists the springs to seal off on the ball, ensuring a tight seal.
Standard the seats are pressure relieving (SPE) which means the pressure that can build up in the body finds its way past the seat(s), in principal, the pressure can go both ways, up and downstream. However, in special circumstances, one or both seats can have the double piston effect (DPE). This type of seat does not allow the seat to move from the ball due to (over)pressure from an unwanted side. Special care is required with regards to safety and installation.
The Orbit valve - Wegman B.V. Trunnion mounted ball valve body can be made of forged or cast material. The body can consist of 2 or 3 pieces, such as end entry, 2 piece body, split body, or 3 piece body. This valve is typically available from 2 till very big where the cast version is more limited in size and pressure rating.
When it comes to materials, the body of the valve can be made from almost any material. Some of the most commonly used materials include forged or cast steel (A216 WCB / WCC, A105, LF2) and Stainless Steel (CF8M, F316). Lined valves are common with the floating design, but in trunnion, the valve is high alloy or cladded (strong base material with corrosion-resistant layer welded on it).
Seat materials typically include Nylon, Devlon, Teflon (TFE, PTFE, CTFE, etc.), metal (hardened), PEEK, KEL-F(PCTFE). If you want to use a ball valve to control the flow, it can have a cage or drilled pattern in the ball. The body parts are typically bolted together, but fully welded is possible.
Overall, the Orbit valve - Wegman B.V. Trunnion mounted ball valve is a high-performance valve that provides tight sealing, high-pressure resistance, and durability. With its range of features, it is suitable for harsh environments and critical applications, where safety, reliability, and performance are paramount. Zhejiang Aran Flow Technology Co., Ltd. is proud to offer this valve, along with a range of other ball valves and components, to meet the ever-increasing demand for high-quality industrial products worldwide.