Cast Iron Safety Valve/Final Safety Device

• Model NO.: DY01011531
• Actuator: Manual
• Seal Surface: Wedge Gate Valve
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Safety
• Standard: CB/T GB/T JIS DIN API ANSI BS etc
• Application: Industrial Usage
• Transport Package: Standard Packing
• Trademark: DEYUAN MARINE
• Origin: China
• Production Capacity: 2000/Month

Product Description

                                Cast Iron Safety Valve/Final Safety Device

Safety valve is a valve that act as a protection of equipment from exploding or damaging and it is mainly installed in pressure vessels such as chemical plants, electric power boilers and gas storage tanks.
Safety Valve is a type of valve that automatically actuates when the pressure of inlet side of the valve increases to a predetermined pressure, to open the valve disc and discharge the fluid (steam or gas ) ; and when the pressure decreases to the prescribed value, to close the valve disc again. Safety valve is so-called a final safety device which controls the pressure and discharges certain amount of fluid by itself without any electric power support.
Safety valve support not only the safety of energy industry but also the safety and security of our life.

Function of the safety valve

1. "Nozzle" inside the Safety Valve starts to receive a higher pressure from the inlet side of the valve.
2. When the pressure becomes higher than the set pressure, "Disc" starts to lift and discharge the fluid.
3. When the pressure decreases until the predetermined pressure, the force of the spring closes "Disc".

( Role of the spare parts )
Nozzle --- Pressure Entrance 
Disc ----- Lid
Spring --- Pressure Controller


Technical specification of safety valve