Everbright valve model (Figure), Shandong valve, safety valve provided by Shandong China Everbright Limited valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) is specialized in the "valve" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Ma. Inching valve spring is a compression spring force to balance the role of the force on the valve. Helical coiled spring compression can turn it inching valve spring adjusting nut to adjust the above, you can use this structure (tuning) pressure relief valve to open as needed correction. Spring inching valve structure is compact, lightweight, high sensitivity, the installation location unrestricted Shandong A27H safety valve, but also because of the sensitivity of the vibration is small, it can be used on mobile pressure vessel. Direct-acting valve direct-acting valve is opened under the direct action of the working medium Weifang A27H inching valve springs, which rely on the role of the working medium pressure loading mechanism to overcome the mechanical load is applied to the valve, the valve open . This valve has a simple structure, Shandong A27H type spring inching valve, safety valve and prompt action, and good reliability. But because relying on structural load, its load size is limited and can not be used for high-pressure, large diameter occasions.