Direct-acting valve direct-acting valve is opened under the direct action of the working medium, that 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 Shandong A27H type spring inching valve, the valve moves quickly Shandong, reliability and good structure. But because relying loaded safety valve structure, its payload size is limited and can not be used for high-pressure, large diameter occasions. Vision: 1. Let Everbright valves throughout the country, to overseas 2. create fair opportunities for employees and more challenging work environment, in order to inspire employees to become a development platform to maximize the value of entrepreneurship: riding a boat, do not enter the back core values: "bright, honest," the character and the "science and innovation" mentality, for customer satisfaction and loyalty, team play unlimited potential safety valve | Everbright Valve Model | Shandong A27H inching valve springs by Valve Co., Ltd. Shandong Everbright provided. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!