Carton packing/wooden or steel frame crate packing/plastic cap protection at the both sides of flanges and suitably protected for sea-worthly delivery or as requested.
Vacuum pressure safety valve
1. A72W is applicable in negative pressure system with temperature ≤200 ℃. When the netative pressure in the container exceeds the allowable value, the valve will open automatically and absorbs air; when the netative pressure in the container reches the allowable value, the valve will close automatically so as to protect the equipment and the system. It is to be instanlled in normal non-negative pressure systems. When the discharge valve of the container and system has not opened, which produces the negative pressure, this valve will open automatically.
2. As foundry goods have been founded precisely, it has tight structure, graceful appearance, smooth and cleaning surface.
3. The spring as a key part is treated for 24 hours under the constant temperature twice so as to ensure the stable firmness at work and proper skip.
4. The parts of the seat and the body have been tested press-resistance so as to ensure the safety and reliability at work.
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