Depending on the service application, this design may require installation of a Liquid Relief Kit (LRK) to relieve excess pressure developed in the body cavity of the valve due to thermal …

There are two options: DPE Seat x Self Relieving Seat (DIB-2) or Double Piston Seat x Double Piston Seat (DIB-1). This design provides assurity of isolation in situations where servicing of …

2021年7月29日 · 也就是说，dib-2阀门的其中一个阀座能承受来自阀门阀腔或者阀门端部任意方向的压力而不泄露；阀门的另外一个阀座只能承受来自阀门端部的压力而不泄露。

• DIB - Double isolation and bleed design per API 6D for all trunnion ball valves with double piston effect seats. OPTIONAL FEATURES • “Safe relieving” DIB-2/combination seats (single piston …

JAG has Double Isolation and Bleed Trunnion Ball Valves available in stock, API 6D Single Piston Effect (SPE) and Double Piston Effect (DPE). Our DIB Ball Valves are supplied with our Viton …

2018年10月24日 · Do DIB-1 valves ALWAYS require a means of relieving cavity pressure (either automatically or manually as per API 6D)? My confusion is, for liquid service there should …

DIB – Double-Isolation-and-Bleed: single valve with two seating surfaces, each of which, in the closed position, provides a seal against pressure from a single source, with a means of …

C&C Trident Series DPE (DIB-1) valves come standard with a cavity pressure safety relief valve to prevent any overpressure of fluids trapped in the body cavity.

A Double Isolation & Bleed (Double Piston Effect seat) valve is a valve with two seating surfaces each of which provide sealing in both directions in the closed position, with a means of a cavity …

2023年5月7日 · In fact, some fixed ball valves have installation direction requirements, such as DBB & DIB ball valves. This article will focus on the analysis of sealing structure and …