900 DIN Spring loaded Pressure Safety Valve
DIN Standard Safety Valve Features:
Safety valves were first used on steam boilers during the industrial revolution. Early boilers without them were prone to accidental Explosion.
Safety valves also evolved to protect equipment such as pressure vessel (fired or not) and heat exchangers. Safety valve term should be limited to compressible fluid application (gas, vapor, steam).
The two general types of protection encountered in industry are thermal protection and flow protection.
For liquid-packed vessels, thermal relief valves are generally characterized by the relatively small size of the safety valve necessary to provide protection from excess pressure caused by thermal expansion. In this case a small valve is adequate because most liquids are nearly incompressible, and so a relatively small amount of fluid discharged through the relief valve will produce a substantial reduction in pressure.
DIN Standard Safety Valve Specification
Type | Nominal Pressure | Body Material | Nominal Diameter | Working Temp. |
901/902/911/912 | PN40/16 | 1.0619+N | DN20/32-DN150/250 | -10C~450C |
901/911 | PN40/16 | 1.4408 | DN20/32-DN100/150 | -60C~400C |
FREE-VALVE’s spring full bore external thread type with lever safety valves (A28 type) are used for the equipment and pipeline of the air ,N2,H2 mixed gas vapour etc . Medium that the working temperature are less than 200 °C.Take for extra pressure protection device . ...
API series Safety Relief valves are designed to meet the requirements of API standards.S 305 series valves are design and manufactured to meet the requirement of organizations worldwide which ensures the world wide ...
1. Product Description: To ensure safety, the drilling pump is equipped with safety valve in the outlet, which is able to control the ultimate pressure of the pump within the admitted scope. The high pressure safety valve is forged by high quality structural alloy steel. As a ...