When the pipeline medium pressure exceeds a predetermined pressure value, the auxiliary valve to open, the media along the catheter into the main valve stainless steel valves, and the main valve to open the valve, the media pressure increased reduced. Emissions safety valve depends on the caliber of the valve seat and the valve opening height Shandong valve can also be divided into two types: Weiqi opening height is the seat diameter (1/20) - (1/40), whole Kai is (1/3) - (1/4). Valve structure are two major categories: spring-loaded and leveraged. Spring means sealing valve and valve seat by spring force. Leveraged rely on leverage and weight forces. With the large capacity needs, harboring a pulse valve, also known as the pilot valve, the main valve and the auxiliary valve. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Closed high pressure safety valve spring inching inching valve opening height is less than 1/4 the diameter of the flow channel is usually a runner diameter of 1/40 1/20. Action process inching valve is proportional action type, mainly for liquid occasions, sometimes for a small gas emissions occasion. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Shandong valve _ _ Valve Valve Co., Ltd. Shandong by Shandong Everbright Everbright valve. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) in this field ball poured boundless enthusiasm and passion, Everbright valve has been customer-centric, the concept of creating value for customers, quality, service to win market, and sincerely hope to work with the community to create success, to create brilliant. Related businesses welcomed the inquiry, Contact: Manager Ma.