With the use of different requirements, there are enclosed and non-enclosed. Enclosed discharge medium that is not compromised, the entire exhaust outlet along a predetermined, generally used for toxic and corrosive media. Enclosed is generally not used for toxic or corrosive media. Shandong Everbright Valve Co., Ltd. specializes in producing valve valve manufacturer in Weifang, new and old customers call to order our products! Direct acting valve direct-acting valve is under the direct action of the working medium stainless steel valves open, which rely on the working medium pressure acts against the biasing mechanism is applied to the valve flap mechanical load, the valve open. This safety valve has a simple valve wholesale prompt action, good reliability advantages. But because relying on structural load valve, the load size is limited and can not be used for high-pressure, large diameter occasions. 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! Shandong Everbright valve (Figure) _ Wholesale _ valve by valve Valve Co., Ltd. Shandong China Everbright. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) is a professional "valve" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Everbright" brand has a good reputation. We adhere to the "service first, customer first" principle, so that the valve Everbright won the trust of all the customers in the ball valve, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!